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Mechanical And Microstructural Effects In Fretting Fatigue Of Ti 6al 4v
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Book Synopsis Mechanical and Microstructural Effects in Fretting Fatigue of Ti-6Al-4V by : Brett Page Conner
Download or read book Mechanical and Microstructural Effects in Fretting Fatigue of Ti-6Al-4V written by Brett Page Conner and published by . This book was released on 2000-10-01 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fretting fatigue is the repetitive sliding of contacting surfaces at small displacements and can cause cracking that leads to failure in the presence of a bulk fatigue load. Dovetail joints in gas turbine engines are particularly susceptible to fretting fatigue and are the motivation for this study. Experiments are conducted in ambient air utilizing a sphere-on-flat contact geometry since its contact mechanics are well known. The effect of changing critical contact and bulk loading parameters are examined in depth for a mill annealed and solution treated overaged variants of Ti-6Al-4V. Parameters which are instrumented and controlled include the applied normal load, tangential load, and axial fatigue load. The fretting fatigue resistance of several other heat treated variants of Ti-6Al-4V are compared versus the two more common variants. Various stages of fretting fatigue crack growth are examined using a fracture mechanics approach. A multiaxial stress-based crack initiation criteria is developed and evaluated. The adhesion model of Giannakopoulos et al., is invoked to determine a contact fatigue threshold of 2 MPa square root of m for Ti-6Al-4V and forms the basis of a life-prediction methodology. Finally, the usefulness of various surface treatments and dovetail designs as palliatives to counter fretting fatigue is discussed.
Book Synopsis Characterizing the Fretting Fatigue Behavior of Ti-6Al-4V in Modular Joints by : V. Chandrasekaran
Download or read book Characterizing the Fretting Fatigue Behavior of Ti-6Al-4V in Modular Joints written by V. Chandrasekaran and published by . This book was released on 1996 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although Ti-6Al-4V has superior mechanical "properties" and corrosion resistance when compared to many other materials in implant applications, it is more susceptible to fretting initiated problems. This is because Ti-6Al-4V exhibits a greater tendency for material transfer when it slides over other materials or over itself. The insidious nature of fretting is more evident when it often leads to other degradation mechanisms such as pitting corrosion and crevice corrosion. To characterize the fretting fatigue behavior of Ti-6Al-4V fretting fatigue tests were conducted in a laboratory environment. The test parameters were selected to simulate the hip prostheses loading conditions. When the cyclic fatigue load of 3.30/0.33 kN (742/74 1bf) was applied to the fatigue specimen [producing the maximum fatigue stress of approximately 524 MPa (76 ksi) through the center section of the fatigue specimen] at a frequency of 6 HZ, the fatigue life of Ti-6Al-4V was reduced to a mere 69,660 cycles at a normal stress of 41.4 MPa (6 ksi). The test results showed that fretting reduced the fatigue life of Ti-6Al-4V when tested in laboratory environment simulating the hip prosthesis loading conditions. The reduction in fretting fatigue life was clearly evident from the fractographic analysis that can be interpreted as resulting from the production of mechanical surface damage that leads to numerous crack nucleation sites. Therefore, to enhance an understanding of fretting related problems in modular joints among the orthopaedic surgeons and researchers the parameters that influence fretting including the sensitivity of titanium to microstructure and the present state of knowledge on the mechanisms of fretting are discussed.
Book Synopsis Fretting Fatigue by : David W. Hoeppner
Download or read book Fretting Fatigue written by David W. Hoeppner and published by ASTM International. This book was released on 2000 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume includes 36 of the 40 papers presented at the symposium, and a collection of six keynote papers providing background on the subject. Topics covered include parameter effects, environmental effects, crack nucleation, material and microstructural effects, damage analysis, fracture mechanic
Book Synopsis Fretting Fatigue by : David W. Hoeppner
Download or read book Fretting Fatigue written by David W. Hoeppner and published by ASTM International. This book was released on 2000 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume includes 36 of the 40 papers presented at the symposium, and a collection of six keynote papers providing background on the subject. Topics covered include parameter effects, environmental effects, crack nucleation, material and microstructural effects, damage analysis, fracture mechanic
Book Synopsis Fretting Fatigue by : Steven E. Kinyon
Download or read book Fretting Fatigue written by Steven E. Kinyon and published by ASTM International. This book was released on 2003 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contains 29 contributions drawn from the Third International Symposium on Fretting Fatigue held in Nagaoka, Japan in May 2001. Sections of the volume address fretting wear and crack initiation; fretting fatigue crack and damage; life prediction; fretting fatigue parameter effects; loading condition
Download or read book Journal of Tribology written by and published by . This book was released on 2008 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dictionnaire portatif des arts et metiers, contenant en abrégé by :
Download or read book Dictionnaire portatif des arts et metiers, contenant en abrégé written by and published by . This book was released on 1767 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fretting Fatigue by : Robert Barry Waterhouse
Download or read book Fretting Fatigue written by Robert Barry Waterhouse and published by Elsevier Science & Technology. This book was released on 1981 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Microstructural and Environmental Effects on Fretting Fatigue by : Roger Keith Reeves
Download or read book Microstructural and Environmental Effects on Fretting Fatigue written by Roger Keith Reeves and published by . This book was released on 1977 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Plasma Science and Technology by : Tetsu Mieno
Download or read book Plasma Science and Technology written by Tetsu Mieno and published by BoD – Books on Demand. This book was released on 2016-04-20 with total page 550 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the early twentieth century, Dr. Irving Langmuir actively studied plasma discharge and surface science. Since then, great progress has been made in the development of applications of discharges and plasmas such as discharge lamps, electric tubes, and arc welding. In relation to studies on space physics and controlled nuclear fusion, plasma physics has greatly advanced. Plasma chemistry has also progressed along with its applications in LSI fabrication technology, the chemical vapor deposition of functional films, and the production of nanomaterials. In the twenty-first century, the further development of applications of plasma physics and plasma chemistry is certainly expected. In this book, 18 chapters on the recent progress in plasma science and technology have been written by active specialists worldwide.
Book Synopsis Effects of Stress-relieving Slots and Friction on Fretting Fatigue Behavior of Ti-6Al-4V by : Rihong Wang
Download or read book Effects of Stress-relieving Slots and Friction on Fretting Fatigue Behavior of Ti-6Al-4V written by Rihong Wang and published by . This book was released on 2005 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fatigue of Materials and Structures by : Claude Bathias
Download or read book Fatigue of Materials and Structures written by Claude Bathias and published by John Wiley & Sons. This book was released on 2013-03-04 with total page 279 pages. Available in PDF, EPUB and Kindle. Book excerpt: The design of mechanical structures with predictable and improved durability cannot be achieved without a thorough understanding of the mechanisms of fatigue damage and more specifically the relationships between the microstructure of materials and their fatigue properties. Written by leading researchers in the field, this book, along with the complementary books Fatigue of Materials and Structures: Fundamentals and Application to Damage and Design (both also edited by Claude Bathias and André Pineau), provides an authoritative, comprehensive and unified treatment of the mechanics and micromechanisms of fatigue in metals, polymers and composites. Each chapter is devoted to one of the major classes of materials or to different types of fatigue damage, thereby providing overall coverage of the field. This book deals with multiaxial fatigue, thermomechanical fatigue, fretting-fatigue, influence of defects on fatigue life, cumulative damage and damage tolerance, and will be an important and much used reference for students, practicing engineers and researchers studying fracture and fatigue in numerous areas of materials science and engineering, mechanical, nuclear and aerospace engineering.
Book Synopsis Spectrum Load Effects on the Fretting Behavior of Ti-6Al-4V by : SE. Kinyon
Download or read book Spectrum Load Effects on the Fretting Behavior of Ti-6Al-4V written by SE. Kinyon and published by . This book was released on 2000 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation was performed to determine the effects of spectrum loading on the fretting fatigue life of titanium alloy Ti-6Al-4V. The research program consisted of a 10 Hz spectrum load cycle applied at six conditions of interest with a normal pressure of 31 MPa. Baseline tests were performed at three stress levels, 345, 310, and 286 MPa maximum load using a conventional haversine waveform. Tests were performed using a spectrum load waveform consisting of 2 cycles, one at 345 MPa, followed by another at 310 MPa, repeated to failure. Additional tests were performed using 345 and 286 MPa. The final condition of interest was investigated using a 345/310/286 MPa waveform. Miners rale was applied to each of the spectrum load cases to test the hypothesis that the titanium alloy followed Miners Rule under the loading conditions. The three conditions of interest varied from Miners Rule by 23, 47, and 62%. From these results it was concluded that Miners Rule was insufficient to predict failure lives of Ti-6Al-4V in fretting fatigue.
Book Synopsis Fatigue of Materials and Structures by : Claude Bathias
Download or read book Fatigue of Materials and Structures written by Claude Bathias and published by John Wiley & Sons. This book was released on 2013-03-04 with total page 415 pages. Available in PDF, EPUB and Kindle. Book excerpt: The design of mechanical structures with improved and predictable durability cannot be achieved without a thorough understanding of the mechanisms of fatigue damage and more specifically the relationships between the microstructure of materials and their fatigue properties. Written by leading experts in the field, this book (which is complementary to Fatigue of Materials and Structures: Application to Damage and Design, also edited by Claude Bathias and André Pineau), provides an authoritative, comprehensive and unified treatment of the mechanics and micromechanisms of fatigue in metals, polymers and composites. Each chapter is devoted to one of the major classes of materials or to different types of fatigue damage, thereby providing overall coverage of the field. The book deals with crack initiation, crack growth, low-cycle fatigue, gigacycle fatigue, shorts cracks, fatigue micromechanisms and the local approach to fatigue damage, corrosion fatigue, environmental effects and variable amplitude loadings, and will be an important and much used reference for students, practicing engineers and researchers studying fracture and fatigue in numerous areas of mechanical, structural, civil, design, nuclear, and aerospace engineering as well as materials science.
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:
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1974 with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fretting Fatigue Behavior of a Titanium Alloy Ti-6AL-4V at Elevated Temperature by : Onder Sahan
Download or read book Fretting Fatigue Behavior of a Titanium Alloy Ti-6AL-4V at Elevated Temperature written by Onder Sahan and published by . This book was released on 2002-03-01 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this research is to investigate the fretting fatigue behavior of the titanium alloy Ti-6Al-4V at elevated temperature is investigated. Fretting and plain fatigue experiments are conducted at 260 . Crack initiation location and crack initiation orientation is measured and fretting and plain fatigue life data of the specimens from these tests are obtained. Fatigue parameters capable of predicting the number of cycles to specimen failure, the crack location and the crack orientation along the contact surface are analyzed. The parameters are calculated by using the computed stresses and strains obtained from the finite element analysis. The mechanisms responsible for the fretting fatigue crack initiation are determined. The effect of elevated temperature is examined by comparing room and elevated temperature fretting and plain fatigue data.
