An Integrated Experimental and Simulation Study on Ultrasonic Nano-crystal Surface Modification

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ISBN 13 :
Total Pages : 74 pages
Book Rating : 4.:/5 (889 download)

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Book Synopsis An Integrated Experimental and Simulation Study on Ultrasonic Nano-crystal Surface Modification by : Max Miller

Download or read book An Integrated Experimental and Simulation Study on Ultrasonic Nano-crystal Surface Modification written by Max Miller and published by . This book was released on 2013 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultrasonic Nano-Crystal Surface Modification (UNSM) is a relatively new material processing technology to enhance the operating service lives, or fatigue life, of engineering components. There is an increasing interest in extending this technology to metal parts such as aircraft engine turbine blades, compressor blades and medical implants such as spinal rods. In this process a ball made with tungsten carbide generates 20 - 40 KHz strikes of a few hundred Newton on the specimen surface. It works as a cold forging process; however the small ball that works itself across the specimen surface has a dynamic load added to the normal static load. The total striking force, feed, ball radius, amplitude of dynamic load and speed can vary to yield different results. UNSM induces severe plastic deformation and deep compressive residual stresses to increase surface hardness, improve surface roughness, and introduce nano-crystallization near the specimen surface. Currently there is no systematic approach to predict the material response under UNSM. Therefore the objective of this thesis is to develop a process model for predicting the material response as a result of the UNSM process. Before developing the model, experimental data is extracted from two UNSM treated coupons, one of Ti-6Al-4V and the other IN718 SPF. First a MATLAB code is developed to define the displacement history of the carbide ball on the surface of the specimen during the UNSM process. For titanium alloy (Ti-6Al-4V) a temperature, pressure, and rate dependent constitutive material model for is established to account for the high strain rates associated with UNSM. A semi-implicit forward tangent modulus algorithm is developed to implement the material and damage model, and this is linked with the FEM software LS-DYNA through a user-defined material subroutine. We use the Johnson Cook material model already within the LS-DYNA software to simulate IN718 SPF. The residual stress obtained from the simulation is compared and verified with experimental results. To further understand the UNSM process, the residual stress results are compared with Laser Shock Peening (LSP) to note the differences.

Ultrasonic Nanocrystal Surface Modification Produced Surface Texture and Its Applications

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ISBN 13 :
Total Pages : 67 pages
Book Rating : 4.:/5 (111 download)

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Book Synopsis Ultrasonic Nanocrystal Surface Modification Produced Surface Texture and Its Applications by : Yuan Liang

Download or read book Ultrasonic Nanocrystal Surface Modification Produced Surface Texture and Its Applications written by Yuan Liang and published by . This book was released on 2017 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this thesis, we have first shown that Ultrasonic Nanocrystal Surface Modification (UNSM) can improve the mechanical properties of Ti-based biomaterials, and produce surface texture with hierarchical micro/nanoscale patterns due to its high controllability. After UNSM-treatment the surface texture of Ti-based biomaterial consists of a major microscale structure with widths ranging from 4 [micron]m to 200 [micron]m, and an embedded nanoscale structure with widths as small as 120 nm. With a customized cylinder tip, the average surface roughness (Ra) can be reduced to 0.03 [micron]m, comparable to the superfinishing surface. The embedded nanoscale structure originates from the formation of the pile-up, which is determined by the elastic-plastic property of materials. Secondly, it is well known that mechanical force can crucially affect form and function of living cells, and play critical roles in many diseases. While techniques to conveniently apply mechanical force to cells are limited, we invent a cell actuator prototype by imparting severe plastic deformation into the surface of shape memory alloy (SMA). Using UNSM, micro surface patterns can be generated on the metal surface so that the micro-size cell can conform to the pattern; meanwhile, phase transformation is induced in the subsurface due to the severe plastic deformation, enabling the control of phase transformation and local deformation using external temperature. When cells are cultured on the UNSM-treated surface, such surface can deform cyclically under external temperature, and therefore apply mechanical force to cells. Finally, hierarchical patterns enable new functions for the treated surface. It is demonstrated that light dispersion and the alteration of wettability can be achieved by controlling surface patterns using UNSM. Through a systematic study, we demonstrate that the capacity of improving mechanical properties, biocompatibility, and hydrophobicity simultaneously, in conjunction with its low-cost and easy-to-operate features, makes UNSM a promising surface engineering technique for biomaterial treatment.

Advances in Micro and Nano Manufacturing and Surface Engineering

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Publisher : Springer Nature
ISBN 13 : 9813294256
Total Pages : 720 pages
Book Rating : 4.8/5 (132 download)

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Book Synopsis Advances in Micro and Nano Manufacturing and Surface Engineering by : M. S. Shunmugam

Download or read book Advances in Micro and Nano Manufacturing and Surface Engineering written by M. S. Shunmugam and published by Springer Nature. This book was released on 2019-11-30 with total page 720 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents research papers on micro and nano manufacturing and surface engineering which were presented during the 7th International and 28th All India Manufacturing Technology, Design and Research conference 2018 (AIMTDR 2018). The papers discuss the latest advances in miniature manufacturing, the machining of miniature components and features as well as improvement of surface properties. This volume will be of interest to academicians, researchers, and practicing engineers alike.

Atomistic Simulation of Anistropic Crystal Structures at Nanoscale

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Publisher : BoD – Books on Demand
ISBN 13 : 1838802010
Total Pages : 180 pages
Book Rating : 4.8/5 (388 download)

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Book Synopsis Atomistic Simulation of Anistropic Crystal Structures at Nanoscale by : Jia Fu

Download or read book Atomistic Simulation of Anistropic Crystal Structures at Nanoscale written by Jia Fu and published by BoD – Books on Demand. This book was released on 2019-05-10 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Multiscale simulations of atomistic/continuum coupling in computational materials science, where the scale expands from macro-/micro- to nanoscale, has become a hot research topic. These small units, usually nanostructures, are commonly anisotropic. The development of molecular modeling tools to describe and predict the mechanical properties of structures reveals an undeniable practical importance. Typical anisotropic structures (e.g. cubic, hexagonal, monoclinic) using DFT, MD, and atomic finite element methods are especially interesting, according to the modeling requirement of upscaling structures. It therefore connects nanoscale modeling and continuous patterns of deformation behavior by identifying relevant parameters from smaller to larger scales. These methodologies have the prospect of significant applications. I would like to recommend this book to both beginners and experienced researchers.

Handbook of Metal Injection Molding

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Publisher : Woodhead Publishing
ISBN 13 : 0081021534
Total Pages : 704 pages
Book Rating : 4.0/5 (81 download)

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Book Synopsis Handbook of Metal Injection Molding by : Donald F Heaney

Download or read book Handbook of Metal Injection Molding written by Donald F Heaney and published by Woodhead Publishing. This book was released on 2018-11-01 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal injection molding combines the most useful characteristics of powder metallurgy and plastic injection molding to facilitate the production of small, complex-shaped metal components with outstanding mechanical properties. Handbook of Metal Injection Molding, Second Edition provides an authoritative guide to this important technology and its applications. Building upon the success of the first edition, this new edition includes the latest developments in the field and expands upon specific processing technologies. Part one discusses the fundamentals of the metal injection molding process with chapters on topics such as component design, important powder characteristics, compound manufacture, tooling design, molding optimization, debinding, and sintering. Part two provides a detailed review of quality issues, including feedstock characterisation, modeling and simulation, methods to qualify a MIM process, common defects and carbon content control. Special metal injection molding processes are the focus of part three, which provides comprehensive coverage of micro components, two material/two color structures, and porous metal techniques, as well as automation of the MIM process and metal injection molding of large components. Finally, part four explores metal injection molding of particular materials, and has been expanded to include super alloys, carbon steels, precious metals, and aluminum. With its distinguished editor and expert team of international contributors, the Handbook of Metal Injection Molding is an essential guide for all those involved in the high-volume manufacture of small precision parts, across a wide range of high-tech industries such as microelectronics, biomedical and aerospace engineering. Provides an authoritative guide to metal injection molding and its applications Discusses the fundamentals of the metal injection molding processes and covers topics such as component design, important powder characteristics, compound manufacture, tooling design, molding optimization, debinding, and sintering Comprehensively examines quality issues such as feedstock characterization, modeling and simulation, common defects and carbon content control

Crystal Plasticity Finite Element Methods

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Publisher : John Wiley & Sons
ISBN 13 : 3527642099
Total Pages : 188 pages
Book Rating : 4.5/5 (276 download)

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Book Synopsis Crystal Plasticity Finite Element Methods by : Franz Roters

Download or read book Crystal Plasticity Finite Element Methods written by Franz Roters and published by John Wiley & Sons. This book was released on 2011-08-04 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by the leading experts in computational materials science, this handy reference concisely reviews the most important aspects of plasticity modeling: constitutive laws, phase transformations, texture methods, continuum approaches and damage mechanisms. As a result, it provides the knowledge needed to avoid failures in critical systems udner mechanical load. With its various application examples to micro- and macrostructure mechanics, this is an invaluable resource for mechanical engineers as well as for researchers wanting to improve on this method and extend its outreach.

Chemical Engineering Progress

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ISBN 13 :
Total Pages : 460 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis Chemical Engineering Progress by :

Download or read book Chemical Engineering Progress written by and published by . This book was released on 2005 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Scientific and Technical Aerospace Reports

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ISBN 13 :
Total Pages : 702 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Scientific and Technical Aerospace Reports by :

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:

International Aerospace Abstracts

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ISBN 13 :
Total Pages : 1016 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis International Aerospace Abstracts by :

Download or read book International Aerospace Abstracts written by and published by . This book was released on 1999 with total page 1016 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Heterostructured Materials

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Publisher : CRC Press
ISBN 13 : 100035332X
Total Pages : 796 pages
Book Rating : 4.0/5 (3 download)

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Book Synopsis Heterostructured Materials by : Xiaolei Wu

Download or read book Heterostructured Materials written by Xiaolei Wu and published by CRC Press. This book was released on 2021-11-24 with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heterostructured (HS) materials represent an emerging class of materials that are expected to become a major research field for the communities of materials, mechanics, and physics in the next couple of decades. One of the biggest advantages of HS materials is that they can be produced by large-scale industrial facilities and technologies and therefore can be commercialized without the scaling up and high-cost barriers that are often encountered by other advanced materials. This book collects recent papers on the progress in the field of HS materials, especially their fundamental physics. The papers are arranged in a sequence of chapters that will help new researchers entering the field to have a quick and comprehensive understanding of HS materials, including the fundamentals and recent progress in their processing, characterization, and properties.

Applied Mechanics Reviews

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ISBN 13 :
Total Pages : 390 pages
Book Rating : 4.3/5 (243 download)

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Book Synopsis Applied Mechanics Reviews by :

Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1994 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Microstructure and Wear of Materials

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Publisher : Elsevier
ISBN 13 : 0080875742
Total Pages : 571 pages
Book Rating : 4.0/5 (88 download)

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Book Synopsis Microstructure and Wear of Materials by : K.-H. Zum Gahr

Download or read book Microstructure and Wear of Materials written by K.-H. Zum Gahr and published by Elsevier. This book was released on 1987-03-01 with total page 571 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new book will be useful not only to practising engineers and scientists, but also to advanced students interested in wear. It reviews our current understanding of the influence of microstructural elements and physical properties of materials (metals, polymers, ceramics and composites) on wear.The introductory chapters describe the relation between microstructure and mechanical properties of materials, surfaces in contact and the classification of wear processes. The following chapters are concerned with wear modes of great practical interest such as grooving wear, sliding wear, rolling-sliding wear and erosive wear. Our present understanding of abrasion, adhesion, surface fatigue and tribochemical reactions as the relevant wear mechanisms is discussed, and new wear models are presented. In addition to extensive experimental results, sketches have been widely used for clarifying the physical events.

Nanobiosensors

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Publisher : Academic Press
ISBN 13 : 0128043725
Total Pages : 928 pages
Book Rating : 4.1/5 (28 download)

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Book Synopsis Nanobiosensors by : Alexandru Grumezescu

Download or read book Nanobiosensors written by Alexandru Grumezescu and published by Academic Press. This book was released on 2016-09-28 with total page 928 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanobiosensors: Nanotechnology in the Agri-Food Industry, Volume 8, provides the latest information on the increasing demand for robust, rapid, inexpensive, and safe alternative technologies that monitor, test, and detect harmful or potentially dangerous foods. Due to their high sensitivity and selectivity, nanobiosensors have attracted attention for their use in monitoring not only biological contaminants in food, but also potential chemical and physical hazards. This book offers a broad overview regarding the current progress made in the field of nanosensors, including cutting-edge technological progress and the impact of these devices on the food industry. Special attention is given to the detection of microbial contaminants and harmful metabolotes, such as toxins and hormones, which have a great impact on both humans and animal health and feed. Includes the most up-to-date information on nanoparticles based biosensors and quantum dots for biological detection Provides application methods and techniques for research analysis for bacteriological detection and food testing Presents studies using analytical tools to improve food safety and quality analysis

Nanostructures: Synthesis, Functional Properties and Application

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Publisher : Springer Science & Business Media
ISBN 13 : 9400710194
Total Pages : 694 pages
Book Rating : 4.4/5 (7 download)

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Book Synopsis Nanostructures: Synthesis, Functional Properties and Application by : Thomas Tsakalakos

Download or read book Nanostructures: Synthesis, Functional Properties and Application written by Thomas Tsakalakos and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 694 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Advanced Study Institute on Synthesis, Functional Properties and Applications of Nanostructures, held at the Knossos Royal Village, Heraklion, Crete, Greece, July 26, 2002 - August 4, 2002, successfully reviewed the state-of-the-art of nanostructures and nanotechnology. It was concluded that Nanotechnology is widely agreed to be the research focus that will lead to the next generation of breakthroughs in science and engineering. There are three cornerstones to the expectation that Nanotechnology will yield revolutionary advances in understanding and application: • Breakthroughs in properties that arise from materials fabricated from the nanoscale. • Synergistic behavior that arise from the combination of disparate types of materials (soft vs. hard, organic vs. inorganic, chemical vs. biological vs. solid state) at the nanoscale. • Exploitation of natural (e.g. chemical and biological) assembly mechanisms that can accomplish structural control at the nanoscale. It is expected that this will lead to paradigms for assembling bio-inspired functional systems that accomplish desirable properties that are either unavailable or prohibitively expensive using top-down approaches.

Nanomaterials by Severe Plastic Deformation

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Publisher : John Wiley & Sons
ISBN 13 : 3527604944
Total Pages : 872 pages
Book Rating : 4.5/5 (276 download)

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Book Synopsis Nanomaterials by Severe Plastic Deformation by : Michael J. Zehetbauer

Download or read book Nanomaterials by Severe Plastic Deformation written by Michael J. Zehetbauer and published by John Wiley & Sons. This book was released on 2006-03-06 with total page 872 pages. Available in PDF, EPUB and Kindle. Book excerpt: These proceedings of the "Second International Conference on Nanomaterials by Severe Plastic Deformation" review the enormous scientific avalanche that has been developing in the field over recent years. A valuable resource for any scientist and engineer working in this emerging field of nanotechnology.

Rotary Ultrasonic Machining

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Publisher : Springer Nature
ISBN 13 : 3030679446
Total Pages : 104 pages
Book Rating : 4.0/5 (36 download)

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Book Synopsis Rotary Ultrasonic Machining by : Marcel Kuruc

Download or read book Rotary Ultrasonic Machining written by Marcel Kuruc and published by Springer Nature. This book was released on 2021-02-19 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the process and conditions of Rotary ultrasonic machining (RUM) of hard materials and summarizes the recommendation of proper machining parameters. The optimum conditions were applied for cutting edge preparation of CBN cutting inserts. The results presented in the book show that RUM is able to create controlled cutting edge preparation.

Physics Briefs

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Publisher :
ISBN 13 :
Total Pages : 1146 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Physics Briefs by :

Download or read book Physics Briefs written by and published by . This book was released on 1994 with total page 1146 pages. Available in PDF, EPUB and Kindle. Book excerpt: