Surface Degradation Behavior Of Bulk Metallic Glasses And High Entropy Alloys

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Surface Degradation Behavior of Bulk Metallic Glasses and High Entropy Alloys

Author : Venkata A. Ayyagari
Publisher :
ISBN 13 :
Total Pages : 100 pages
Book Rating : 4.:/5 (13 download)

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Book Synopsis Surface Degradation Behavior of Bulk Metallic Glasses and High Entropy Alloys by : Venkata A. Ayyagari

Download or read book Surface Degradation Behavior of Bulk Metallic Glasses and High Entropy Alloys written by Venkata A. Ayyagari and published by . This book was released on 2017 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this study, the surface degradation behavior was studied for typical examples from bulk metallic glasses (BMGs), metallic glass composites (MGCs) and high entropy alloys (HEAs) alloy systems that are of scientific and commercial interest. The corrosion and wear behavior of two Zr-based bulk metallic glasses, Zr41.2Cu12.5Ni10Ti13.8Be22.5 and Zr57Cu15.4Ni12.6Al10Nb5, were evaluated in as-cast and thermally relaxed states. Significant improvement in corrosion rate, wear behavior, and friction coefficient was seen for both the alloys after thermal relaxation. Fully amorphous structure was retained with thermal relaxation below the glass transition temperature. This improvement in surface properties was explained by annihilation of free volume, the atomic scale defects in amorphous metals resulting from kinetic freezing. Recently developed MGCs, with in situ crystalline ductile phase, demonstrate a combination of mechanical properties and fracture behavior unseen in known structural metals. The composites showed higher wear rates but lower coefficient of friction compared to monolithic amorphous glasses. No tribolayer formation was seen for the composites in sharp contrast to that of the monolithic metallic glasses. Corrosion was evaluated by open circuit potential (OCP) analysis and potentiodynamic polarization. Site-specific corrosion behavior was studied by scanning vibration electrode technique (SVET) to identify formation of galvanic couples. Scanning kelvin probe microscope was used to map elecropositivity difference between the phases and linked to wear/corrosion behavior. Phases with higher elecropositivity were more susceptible to surface degradation. Wear and corrosion synergy in marine environment was evaluated for two high entropy alloys (HEAs), CoCrFeMnNi and Al0.1CoCrFeNi. Between the two alloys, Al0.1CoCrFeNi showed better wear resistance compared to CoCrFeMnNi in dry and marine conditions due to quicker passivation, a higher magnitude of polarization resistance and significantly larger pitting resistance.

Electrochemical and Corrosion Behavior of Metallic Glasses

Author : Vahid Hasannaeimi
Publisher : MDPI
ISBN 13 : 3039437240
Total Pages : 104 pages
Book Rating : 4.0/5 (394 download)

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Book Synopsis Electrochemical and Corrosion Behavior of Metallic Glasses by : Vahid Hasannaeimi

Download or read book Electrochemical and Corrosion Behavior of Metallic Glasses written by Vahid Hasannaeimi and published by MDPI. This book was released on 2021-02-10 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metallic glasses are multi-component metallic alloys with disordered atomic distribution unlike their crystalline counterparts with long range periodicity in arrangement of atoms. Metallic glasses of different compositions are being commercially used in bulk form and as coatings because of their excellent corrosion resistance. This book was written with the objective of providing a comprehensive understanding of the electrochemical and corrosion behavior of metallic glasses for a wide range of compositions. Corrosion in structural materials leads to rapid deterioration in the performance of critical components and serious economic implications including property damage and loss in human life. Discovery and development of metallic alloys with enhanced corrosion resistance will have a sizable impact in a number of areas including manufacturing, aerospace, oil and gas, nuclear industry, and load-bearing bioimplants. The corrosion resistance of many metallic glass systems is superior compared to conventionally used alloys in different environments. In this book, we discuss in detail the role of chemistry, processing conditions, environment, and surface state on the corrosion behavior of metallic glasses and compare their performance with conventional alloys. Several of these alloy systems consist of all biocompatible and non-allergenic elements making them attractive for bioimplants, stents, and surgical tools. To that end, critical insights are provided on the bio-corrosion response of some metallic glasses in simulated physiological environment.

Bulk Metallic Glasses

Author : C. Suryanarayana
Publisher : CRC Press
ISBN 13 : 1498763685
Total Pages : 543 pages
Book Rating : 4.4/5 (987 download)

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Book Synopsis Bulk Metallic Glasses by : C. Suryanarayana

Download or read book Bulk Metallic Glasses written by C. Suryanarayana and published by CRC Press. This book was released on 2017-11-22 with total page 543 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reflecting the fast pace of research in the field, the Second Edition of Bulk Metallic Glasses has been thoroughly updated and remains essential reading on the subject. It incorporates major advances in glass forming ability, corrosion behavior, and mechanical properties. Several of the newly proposed criteria to predict the glass-forming ability of alloys have been discussed. All other areas covered in this book have been updated, with special emphasis on topics where significant advances have occurred. These include processing of hierarchical surface structures and synthesis of nanophase composites using the chemical behavior of bulk metallic glasses and the development of novel bulk metallic glasses with high-strength and high-ductility and superelastic behavior. New topics such as high-entropy bulk metallic glasses, nanoporous alloys, novel nanocrystalline alloys, and soft magnetic glassy alloys with high saturation magnetization have also been discussed. Novel applications, such as metallic glassy screw bolts, surface coatings, hyperthermia glasses, ultra-thin mirrors and pressure sensors, mobile phone casing, and degradable biomedical materials, are described. Authored by the world’s foremost experts on bulk metallic glasses, this new edition endures as an indispensable reference and continues to be a one-stop resource on all aspects of bulk metallic glasses.

Recent Advancements in Metallic Glasses

Author : Vitaly A. Khonik
Publisher : MDPI
ISBN 13 : 3036508805
Total Pages : 190 pages
Book Rating : 4.0/5 (365 download)

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Book Synopsis Recent Advancements in Metallic Glasses by : Vitaly A. Khonik

Download or read book Recent Advancements in Metallic Glasses written by Vitaly A. Khonik and published by MDPI. This book was released on 2021-06-09 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Special Issue “Recent Advancements in Metallic Glasses” presents ten original papers, considering both scientific and application issues related to metallic glasses. The papers are devoted to general consideration of the formation and defects of the glassy structure, defect evolution due to heat treatment, deformation behavior upon compression and high-pressure torsion, amorphous-crystalline transformation, hydrogenation behavior, and biomedical applications.

Metallic Glasses and Their Oxidation

Author : Xinyun Wang
Publisher : Elsevier
ISBN 13 : 0323909981
Total Pages : 290 pages
Book Rating : 4.3/5 (239 download)

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Book Synopsis Metallic Glasses and Their Oxidation by : Xinyun Wang

Download or read book Metallic Glasses and Their Oxidation written by Xinyun Wang and published by Elsevier. This book was released on 2022-11-03 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metallic Glasses and Their Oxidation provides a comprehensive review of the structures, properties, preparations, processing and applications of metallic glasses. Special attention is paid to the oxidation behaviors and related mechanisms of metallic glasses that occur during their preparation, processing and application. The book's authors introduce basic knowledge of metallic glasses, including their structures, properties, processing techniques and applications. Then, the theories and techniques commonly used in oxidation investigation are highlighted, including thermal oxidation, native oxidation, stressed oxidation, powder oxidation and oxidation simulation. The book closes with the influence of oxidation on the structures and performances of metallic glasses, proposes measures to control oxidation, and discusses how to take advantage of oxidation to reinforce materials or create new materials. Introduces the latest knowledge on the structures, properties, preparation, processing and application of metallic glasses Reviews the fundamental concepts surrounding metal oxidation, including techniques, devices and methods frequently used in oxidation research Discusses measures to control oxidation and the possibilities of using oxidation to reinforce metallic glasses or create new types of materials

Electrochemical and Corrosion Behavior of Metallic Glasses

Author : Vahid Hasannaeimi
Publisher :
ISBN 13 : 9783039437238
Total Pages : 104 pages
Book Rating : 4.4/5 (372 download)

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Book Synopsis Electrochemical and Corrosion Behavior of Metallic Glasses by : Vahid Hasannaeimi

Download or read book Electrochemical and Corrosion Behavior of Metallic Glasses written by Vahid Hasannaeimi and published by . This book was released on 2021 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metallic glasses are multi-component metallic alloys with disordered atomic distribution unlike their crystalline counterparts with long range periodicity in arrangement of atoms. Metallic glasses of different compositions are being commercially used in bulk form and as coatings because of their excellent corrosion resistance. This book was written with the objective of providing a comprehensive understanding of the electrochemical and corrosion behavior of metallic glasses for a wide range of compositions. Corrosion in structural materials leads to rapid deterioration in the performance of critical components and serious economic implications including property damage and loss in human life. Discovery and development of metallic alloys with enhanced corrosion resistance will have a sizable impact in a number of areas including manufacturing, aerospace, oil and gas, nuclear industry, and load-bearing bioimplants. The corrosion resistance of many metallic glass systems is superior compared to conventionally used alloys in different environments. In this book, we discuss in detail the role of chemistry, processing conditions, environment, and surface state on the corrosion behavior of metallic glasses and compare their performance with conventional alloys. Several of these alloy systems consist of all biocompatible and non-allergenic elements making them attractive for bioimplants, stents, and surgical tools. To that end, critical insights are provided on the bio-corrosion response of some metallic glasses in simulated physiological environment.

Handbook of Research on Tribology in Coatings and Surface Treatment

Author : Pakseresht, Amirhossein
Publisher : IGI Global
ISBN 13 : 1799896854
Total Pages : 470 pages
Book Rating : 4.7/5 (998 download)

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Book Synopsis Handbook of Research on Tribology in Coatings and Surface Treatment by : Pakseresht, Amirhossein

Download or read book Handbook of Research on Tribology in Coatings and Surface Treatment written by Pakseresht, Amirhossein and published by IGI Global. This book was released on 2022-03-25 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances are continuously being made in applying the coatings and surface treatments by different techniques to reduce the damages from tribology. Engineers need more detailed information to compare the capability of each coating process in wear resistant and lubrication applications. It is also important to focus on the concepts of tribology in various applications such as the manufacturing process, bio implants, machine elements, and corrosive environments. The need for a comprehensive resource addressing these findings in order to improve wear resistance is unavoidable. The Handbook of Research on Tribology in Coatings and Surface Treatment evaluates the latest advances the fabrication of wear-resistant and lubricant coatings by different techniques and investigates wear-resistant coatings and surface treatments in various applications such as the automobile industry. Covering a wide range of topics such as lubricant coatings and wearable electronic devices, it is ideal for engineers, industry professionals, researchers, academicians, scholars, practitioners, instructors, and students.

High-Entropy Alloys

Author : Michael C. Gao
Publisher : Springer
ISBN 13 : 3319270133
Total Pages : 524 pages
Book Rating : 4.3/5 (192 download)

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Book Synopsis High-Entropy Alloys by : Michael C. Gao

Download or read book High-Entropy Alloys written by Michael C. Gao and published by Springer. This book was released on 2016-04-27 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a systematic and comprehensive description of high-entropy alloys (HEAs). The authors summarize key properties of HEAs from the perspective of both fundamental understanding and applications, which are supported by in-depth analyses. The book also contains computational modeling in tackling HEAs, which help elucidate the formation mechanisms and properties of HEAs from various length and time scales.

Corrosion and Electrochemical Properties of Bulk Metallic Glasses and Nano-Crystalline Materials

Author : M. Yamasaki
Publisher : The Electrochemical Society
ISBN 13 : 1566777070
Total Pages : 105 pages
Book Rating : 4.5/5 (667 download)

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Book Synopsis Corrosion and Electrochemical Properties of Bulk Metallic Glasses and Nano-Crystalline Materials by : M. Yamasaki

Download or read book Corrosion and Electrochemical Properties of Bulk Metallic Glasses and Nano-Crystalline Materials written by M. Yamasaki and published by The Electrochemical Society. This book was released on 2009-03 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt: The papers included in this issue of ECS Transactions were originally presented in the symposium ¿Corrosion and Electrochemical Properties of Bulk Metallic Glasses and Nano-Crystalline Materials¿, held during the PRiME 2008 joint international meeting of The Electrochemical Society and The Electrochemical Society of Japan, with the technical cosponsorship of the Japan Society of Applied Physics, the Korean Electrochemical Society, the Electrochemistry Division of the Royal Australian Chemical Institute, and the Chinese Society of Electrochemistry. This meeting was held in Honolulu, Hawaii, from October 12 to 17, 2008.

Supercooled Liquids, Glass Transition and Bulk Metallic Glasses: Volume 754

Author : Takeshi Egami
Publisher :
ISBN 13 :
Total Pages : 512 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Supercooled Liquids, Glass Transition and Bulk Metallic Glasses: Volume 754 by : Takeshi Egami

Download or read book Supercooled Liquids, Glass Transition and Bulk Metallic Glasses: Volume 754 written by Takeshi Egami and published by . This book was released on 2003-07-16 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: There has been a renaissance in glass science brought about by the development of concepts such as fragility index and the energy landscape with megabasins. Research on bulk metallic glasses has been explosive since their advent when MRS offered its first book on the topic. In 2000, a second book broadened the scope to include supercooled liquid, bulk glassy and nanocrystalline states. This book enhances the scope to include glass transition in diverse materials such as water, silicate and polymeric melts. Bringing these threads together in an interdisciplinary manner was fruitful and offers proof that while there is much common ground, gaps between various approaches to the glassy state remain to be bridged. Subjects include: the supercooled liquid; glass formability; structural relaxation and dynamics; structure determination and modeling; processing and applications of bulk metallic glasses; mechanical properties; mechanical properties - composites; crystallization; electronic and magnetic structure and properties; and nanoparticles and nonmetallic glasses.

High-Entropy Materials

Author : Yong Zhang
Publisher : Springer
ISBN 13 : 9811385262
Total Pages : 152 pages
Book Rating : 4.8/5 (113 download)

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Book Synopsis High-Entropy Materials by : Yong Zhang

Download or read book High-Entropy Materials written by Yong Zhang and published by Springer. This book was released on 2019-05-27 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book draws on the latest research to discuss the history and development of high-entropy alloys and ceramics in bulk, film, and fiber form. High-entropy materials have recently been developed using the entropy of mixing and entropy of configuration of materials, and have proven to exhibit unique properties superior to those of conventional materials. The field of high-entropy alloys was born in 2004, and has since been developed for both scientific and engineering applications. Although there is extensive literature, this field is rapidly transforming. This book highlights the cutting edge of high-entropy materials, including their fundamentals and applications. Above all, it reflects two major milestones in their development: the equi-atomic ratio single-phase high-entropy alloys; and the non-equi-atomic ratio dual-phase high-entropy alloys.

Studying the Fatigue Behavior of Zr-based Bulk-metallic Glasses and Composites

Author : Gongyao Wang
Publisher :
ISBN 13 :
Total Pages : 228 pages
Book Rating : 4.:/5 (819 download)

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Book Synopsis Studying the Fatigue Behavior of Zr-based Bulk-metallic Glasses and Composites by : Gongyao Wang

Download or read book Studying the Fatigue Behavior of Zr-based Bulk-metallic Glasses and Composites written by Gongyao Wang and published by . This book was released on 2006 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: As excellent candidates for structural materials, the mechanical behavior of bulk metallic glasses (BMGs) is being widely studied. Although their fatigue behavior is very important for engineering applications, there are few studies on their fatigue behavior. Moreover, the understanding of the fatigue behavior is pretty limited. High-cycle fatigue experiments were conducted on notched Zr-based BMGs under tension-tension loading in air and vacuum at room temperature. A sparking phenomenon was found by infrared camera at the final fracture moment of Zr50Al10Cu30Ni10 in air. The fatigue-endurance limit (983 MPa) of Zr50Cu3--Al1010Pd3 was greatest among these Zr-base BMGs in air. The fatigue lives in vacuum and air are generally similar. LM001 and LM002 are commercial Zr-based BMGs. The X-ray diffraction results show that LM001 is a monolithic BMG and LM002 is a BMG composite containing crystalline phases. The fatigue-endurance limit (239 MPa) of LM002 was found to be significantly lower than that (567 MPa) of LM001, which indicates that the crystalline phase could degrade the resistances to fatigue. The compression strengths of Zr-based BMGs with partial crystallization are comparable to those of their fully amorphous alloys. However, the fatigue-endurance limits of these BMGs with partial crystallization were much lower than those of their fully amorphous alloys, which suggested that the fatigue behavior of a BMG is very sensitive to the microstructure. Fatigue cracks initiate from the outer surface of the sample, inclusions, and/or porosity. The propagation region exhibits a typical striation-type fracture. The final fast fracture region was very rough and occupied most of the fracture surface. The vein pattern and droplets with a melted indication were observed in the apparent melting region. A mechanistic understanding of the fatigue behavior of the Zr-based BMGs is suggested. The ratio of the fatigue-endurance limit to the tensile strength seems to increase with increasing Poisson's ratio. Moreover, The fatigue endurance limits of Zr-based, Cu-based, and Fe-based BMGs and composites were comparable to those of ductile crystalline alloys. The fatigue-endurance ratios of Zr-based BMGs were found to be comparable with those of high strength crystalline alloys.

Bulk Metallic Glasses

Author : Michael Miller
Publisher : Springer Science & Business Media
ISBN 13 : 0387489215
Total Pages : 243 pages
Book Rating : 4.3/5 (874 download)

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Book Synopsis Bulk Metallic Glasses by : Michael Miller

Download or read book Bulk Metallic Glasses written by Michael Miller and published by Springer Science & Business Media. This book was released on 2007-09-26 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bulk metallic glasses are a new emerging field of materials with many desirable and unique properties. These amorphous materials have many diverse applications from structural applications to biomedical implants. This book provides a complete overview of bulk metallic glasses. It covers the principles of alloy design, glass formation, processing, atomistic modeling, computer simulations, mechanical properties and microstructures.

High-Entropy Alloys

Author : Ghulam Yasin
Publisher : Elsevier
ISBN 13 : 0443221413
Total Pages : 596 pages
Book Rating : 4.4/5 (432 download)

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Book Synopsis High-Entropy Alloys by : Ghulam Yasin

Download or read book High-Entropy Alloys written by Ghulam Yasin and published by Elsevier. This book was released on 2024-08-01 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt: High-Entropy Alloys: Design, Manufacturing, and Emerging Applications presents cutting-edge advances in the field of these materials, covering their mechanics, methods of manufacturing, and applications, all while emphasizing the link between their structure/microstructure and functional properties. The book starts with a section on the fundamentals of high-entropy alloys (HEAs), with chapters discussing their thermodynamics, subgroups (transition metal; refractory; ceramics; metallic glasses and more), physical metallurgy, and microstructural characterization. The next section features chapters which look at manufacturing processes of HEAs, such as liquid metallurgy synthesis, in-situ synthesis, additive manufacturing, machine learning, friction stir welding, and fabrication of coatings for HEAs. The final section of the book covers applications of these materials, including their use as irradiation-resistant structural materials, catalyst materials, electrode materials, HEAs for solid hydrogen storage, and more. The book is a key resource for academic researchers, grad students, and industry professionals working with HEAs across a range of disciplines and applications including aerospace, functional materials, catalyst materials, gas storage, sensing, super-conducting materials, biomedical, civil engineering, energy storage, and energy materials. Covers the mechanics, manufacturing, and applications of functionally-oriented high-entropy alloys (HEAs) Discusses the metallurgical composition of HEAs, their microstructural characterization, thermal stability, and how to manufacture them via powder metallurgy, additive manufacturing, and friction stir welding Reviews applications of HEAs such as for irradiation-resistant structural materials, in biomedical settings, as catalyst materials, for solid hydrogen storage, and more

High Entropy Materials

Author : Weidong Li
Publisher : Mdpi AG
ISBN 13 : 9783036524061
Total Pages : 126 pages
Book Rating : 4.5/5 (24 download)

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Book Synopsis High Entropy Materials by : Weidong Li

Download or read book High Entropy Materials written by Weidong Li and published by Mdpi AG. This book was released on 2021-11-16 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a reprint of a special issue of Metals (ISSN 2075-4701), titled High Entropy Materials: Challenges and Prospects. It is a compilation of nine articles from different aspects of high-entropy materials. The book primarily focuses on high-entropy alloys, the first emergent high-entropy materials, but also covers high-entropy ceramics and high-entropy composites, which are the extensions of high-entropy alloys. The articles on high-entropy alloys cover some important facets in the field such as phase structures, mechanical properties, laser beam welding, design of soft magnetic alloys, and potential as biomaterials. In addition, there are one article introducing the potential of using high-entropy carbides as hard metals for machining, and one another on high-entropy composite studying the microstructures and tribological properties of the FeCoNiCuAl-TiC composite. The goal of this reprinted book is essentially two-fold. In the first place, it offers a platform for researchers in the broad field of high-entropy materials to communicate their views and recent research on the subject. Next, it reports challenges in the sub-fields of high-entropy materials and inspires researchers to continue to practice diligence to resolve these challenges and advance high-entropy materials solidly. We hope that readers in the field feel encouraged, inspired, and challenged by the book, and readers outside the field can grasp some basic ideals of high-entropy materials and their potential to the society as a family of novel materials.

Complex Concentrated Alloys (CCAs)

Author : Sundeep Mukherjee
Publisher : MDPI
ISBN 13 : 3039434748
Total Pages : 278 pages
Book Rating : 4.0/5 (394 download)

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Book Synopsis Complex Concentrated Alloys (CCAs) by : Sundeep Mukherjee

Download or read book Complex Concentrated Alloys (CCAs) written by Sundeep Mukherjee and published by MDPI. This book was released on 2020-11-04 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a collection of several unique articles on the current state of research on complex concentrated alloys, as well as their compelling future opportunities in wide ranging applications. Complex concentrated alloys consist of multiple principal elements and represent a new paradigm in structural alloy design. They show a range of exceptional properties that are unachievable in conventional alloys, including high strength–ductility combination, resistance to oxidation, corrosion/wear resistance, and excellent high-temperature properties. The research articles, reviews, and perspectives are intended to provide a wholistic view of this multidisciplinary subject of interest to scientists and engineers.

High-Entropy Alloys

Author : B.S. Murty
Publisher : Elsevier
ISBN 13 : 0128160683
Total Pages : 388 pages
Book Rating : 4.1/5 (281 download)

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Book Synopsis High-Entropy Alloys by : B.S. Murty

Download or read book High-Entropy Alloys written by B.S. Murty and published by Elsevier. This book was released on 2019-03-16 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: High-Entropy Alloys, Second Edition provides a complete review of the current state of the field of high entropy alloys (HEA). Building upon the first edition, this fully updated release includes new theoretical understandings of these materials, highlighting recent developments on modeling and new classes of HEAs, such as Eutectic HEAs and Dual phase HEAs. Due to their unique properties, high entropy alloys have attracted considerable attention from both academics and technologists. This book presents the fundamental knowledge, the spectrum of various alloy systems and their characteristics, key focus areas, and the future scope of the field in terms of research and technological applications. Provides an up-to-date, comprehensive understanding on the current status of HEAs in terms of theoretical understanding and modeling efforts Gives a complete idea on alloy design criteria of various classes of HEAs developed so far Discusses the microstructure property correlations in HEAs in terms of structural and functional properties Presents a comparison of HEAs with other multicomponent systems, like intermetallics and bulk metallic glasses