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Hydrogen Related Degradation Of Mechanical Properties Of Titanium And Titanium Alloys
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Book Synopsis Hydrogen-Related Degradation of Mechanical Properties of Titanium and Titanium Alloys by : Kenzo Asaoka
Download or read book Hydrogen-Related Degradation of Mechanical Properties of Titanium and Titanium Alloys written by Kenzo Asaoka and published by . This book was released on 2009 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrogen can have a pronounced effect on the mechanical properties of titanium (Ti) and Ti alloys, such as deformation, fracture, and fatigue life. The delayed fracture of medical Ti alloy devices is commonly caused by hydrogen embrittlement. Experimentally, we confirmed that the degradation in the performance of Ni-Ti superelastic alloy is caused by the hydrogen absorption related with specific factors in vivo; i.e., hydrogen embrittlement is related to such factors as sustained stress, in vivo environment (pH and potential), and surface chemistry. In our research a thermal desorption gas spectrometer (TDS) was used to measure the hydrogen content in the alloys without fusion. The measured hydrogen concentration showed clearly that the hydrogen concentration affects considerably the degradation of the mechanical properties. It is unclear how the alloy can naturally absorb hydrogen under biological circumstances. However, it is suspected that the hydrogen absorption is related to galvanic currents, fretting corrosion, hydrogen ions in a biological fluid, and changes in pH under biostructures, biofilms, and tumors. It may lead to the degradation of their mechanical properties by hydrogen absorption in vivo. Also the processes of medical Ti alloy devices, such as pickling, are associated with their hydrogen content. Thus, the estimation of the hydrogen absorption in vivo in relation to surface features is required to evaluate its effect on such properties as fatigue and the service life of the Ni-Ti alloys used as medical devices.
Book Synopsis The Effect of Hydrogen on the Mechanical Properties of Titanium and Titanium Alloys by : G. A. Lenning
Download or read book The Effect of Hydrogen on the Mechanical Properties of Titanium and Titanium Alloys written by G. A. Lenning and published by . This book was released on 1953 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effect of Hydrogen on the Mechanical Properties of Titanium and Titanium Alloys by : G. A. Lenning
Download or read book The Effect of Hydrogen on the Mechanical Properties of Titanium and Titanium Alloys written by G. A. Lenning and published by . This book was released on 1955 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hot-salt Stress-corrosion of Titanium Alloys by : Hugh R. Gray
Download or read book Hot-salt Stress-corrosion of Titanium Alloys written by Hugh R. Gray and published by . This book was released on 1969 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effect of Hydrogen on the Mechanical Properties of Titanium Alloys by : Shewang Ouyang
Download or read book Effect of Hydrogen on the Mechanical Properties of Titanium Alloys written by Shewang Ouyang and published by . This book was released on 1992 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Report on Hydrogen in Titanium and Titanium Alloys by : Dean N. Williams
Download or read book Report on Hydrogen in Titanium and Titanium Alloys written by Dean N. Williams and published by . This book was released on 1958 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hydrogen in Titanium by : V. A. Livanov
Download or read book Hydrogen in Titanium written by V. A. Livanov and published by . This book was released on 1965 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effect of Hydrogen on the Mechanical Properties of Alpha Titanium Alloys by : Gilbert August Lenning
Download or read book The Effect of Hydrogen on the Mechanical Properties of Alpha Titanium Alloys written by Gilbert August Lenning and published by . This book was released on 1956 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hydrogen Contamination in Titanium and Titanium Alloys. Part IV. The Effect of Hydrogen on the Mechanical Properties and Control of Hydrogen in Titanium Alloys by : D. N. WILLIAMS
Download or read book Hydrogen Contamination in Titanium and Titanium Alloys. Part IV. The Effect of Hydrogen on the Mechanical Properties and Control of Hydrogen in Titanium Alloys written by D. N. WILLIAMS and published by . This book was released on 1957 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hydrogen Contamination in Titanium and Titanium Alloys by : D. N. Williams
Download or read book Hydrogen Contamination in Titanium and Titanium Alloys written by D. N. Williams and published by . This book was released on 1956 with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Maco/Micro Studies of Hydrogen Embrittlement Mechanisms in Titanium and Aluminum Alloys by : W. W. Gerberich
Download or read book Maco/Micro Studies of Hydrogen Embrittlement Mechanisms in Titanium and Aluminum Alloys written by W. W. Gerberich and published by . This book was released on 1981 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: Systematic studies of environmental effects on fracture in two alpha/beta titanium alloys, one beta titanium alloy and 7475 aluminum alloys have been accomplished. Ti-6Al-6V-2Sn has been tested for its hydrogen-induced cracking behavior under sustained loads. The influence of frequency and microstructure on fatigue crack growth have also been studied. Fatigue crack growth in Ti-5A1-4Mo, as a function of hydrogen content, temperature and Widmanstatten colony size, was then studied. Mechanical data have been obtained along with TEM and SEM characterizations. Modelling for fatigue thresholds has been attempted to explain dislocation, microstructure and hydrogen effects. Ti-30 Mo has been studied for effects of hydrogen on dislocation dynamics, cleavage fracture stress and fatigue crack propagation. Fractography (SEM) has been used to characterize the fracturing processes and modeling attempted to explain the hydrogen effects. Hydrogen effects in aluminum alloys are not as obvious as those in titanium alloys. Both cathodic and gas-phase charging did not significantly increase the hydrogen content of this material. Mechanical properties did not seem to change decisively after hydrogen charging. But the lack of a macroscopic effect does not preclude a hydrogen mechanism in environmentally assisted events. (Author).
Book Synopsis Hydrogen Effects in Materials by : Anthony W. Thompson
Download or read book Hydrogen Effects in Materials written by Anthony W. Thompson and published by John Wiley & Sons. This book was released on 2013-09-27 with total page 1090 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the Fifth International Conference on the Effect of Hydrogen on the Behavior of Materials sponsored by the Structural Materials Division (SMD) Mechanical Metallurgy and Corrosion & Environmental Effects Committees of The Minerals, Metals & Materials Society held at Jackson Lake Lodge, Moran, Wyoming, September 11-14, 1994.
Book Synopsis Embrittlement of Engineering Alloys by : C. L. Briant
Download or read book Embrittlement of Engineering Alloys written by C. L. Briant and published by Elsevier. This book was released on 2013-10-22 with total page 638 pages. Available in PDF, EPUB and Kindle. Book excerpt: Treatise on Materials Science and Technology, Volume 25: Embrittlement of Engineering Alloys is an 11-chapter text that describes some situations that produce premature failure of several engineering alloys, including steels and nickel- and aluminum-base alloys. Chapters 1 to 3 consider situations where improper alloy composition, processing, and/or heat treatment can lead to a degradation of mechanical properties, even in the absence of an aggressive environment or an elevated temperature. Chapters 4 and 5 examine the effect of elevated temperatures on the mechanical properties of both ferrous and nonferrous alloys. Chapters 6 and 7 discuss the effects of corrosive environments on both stressed and unstressed materials. In these environments anodic dissolution is the primary step that leads to failure. Chapters 8 to 10 deal with the effects of aggressive environments that lead to enhanced decohesion or embrittlement of the metal, such as hydrogen, liquid metal, and irradiation-induced embrittlement. Chapter 11 looks into the embrittlement phenomena occurring during welding, one of the most common processing conditions to which a material could be subjected. This book will prove useful to materials scientists and researchers.
Book Synopsis The Effect of Hydrogen on the Mechanical Properties of Titanium-Aluminum Alloys by : L. W. Berger
Download or read book The Effect of Hydrogen on the Mechanical Properties of Titanium-Aluminum Alloys written by L. W. Berger and published by . This book was released on 1957 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Structure and mechanical properties of some titanium-hydrogen alloys by : Stewart Murray
Download or read book Structure and mechanical properties of some titanium-hydrogen alloys written by Stewart Murray and published by . This book was released on 1973 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Corrosion of Titanium by : J. D. Jackson
Download or read book Corrosion of Titanium written by J. D. Jackson and published by . This book was released on 1966 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Tensile Properties of Titanium Electrolytically Charged with Hydrogen by : Robert J. Smith
Download or read book Tensile Properties of Titanium Electrolytically Charged with Hydrogen written by Robert J. Smith and published by . This book was released on 1971 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Yield strength, ultimate tensile strength, and elongation were studied for annealed titanium electrolytically charged with hydrogen. The hydrogen was present as a surface hydride layer. These tensile properties were generally lower for uncharged titanium than for titanium with a continuous surface hydride; they were greater for uncharged titanium than for titanium with an assumed discontinuous surface hydride. We suggest that the interface between titanium and titanium hydride is weak. And the hydride does not necessarily impair strength and ductility of annealed titanium. The possibility that oxygen and/or nitrogen can embrittle titanium hydride is discussed.
