Results 41 to 50 of about 6,980 (134)
Environmental fatigue in aluminum-lithium alloys [PDF]
Aluminum-lithium alloys exhibit similar environmental fatigue crack growth characteristics compared to conventional 2000 series alloys and are more resistant to environmental fatigue compared to 7000 series alloys.
Piascik, Robert S.
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Environmental fatigue of an Al-Li-Cu alloy. Part 1: Intrinsic crack propagation kinetics in hydrogenous environments [PDF]
Deleterious environmental effects on steady-state, intrinsic fatigue crack propagation (FCP) rates (da/dN) in peak aged Al-Li-Cu alloy 2090 are established by electrical potential monitoring of short cracks with programmed constant delta K and K(sub max)
Gangloff, Richard P., Piascik, Robert S.
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Measurement and analysis of critical crack tip processes during fatigue crack growth [PDF]
The mechanics of fatigue crack growth under constant-amplitudes and variable-amplitude loading were examined. Critical loading histories involving relatively simple overload and overload/underload cycles were studied to provide a basic understanding of ...
Davidson, D. L. +2 more
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Oxidation of austenitic stainless steels in PWR primary water [PDF]
, 2010 International audience304L and 316L SS samples are SCC-tested in PWR water for various conditions: strain level, duration, pH, surface finish. The passive Chromium-rich oxide layer, the consistent oxidation feature, is characterized using Transmission ...
Couvant, Thierry +4 more
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Stress corrosion in titanium alloys and other metallic materials [PDF]
Multiple physical and chemical techniques including mass spectroscopy, atomic absorption spectroscopy, gas chromatography, electron microscopy, optical microscopy, electronic spectroscopy for chemical analysis (ESCA), infrared spectroscopy, nuclear ...
Basu, P. K. +9 more
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Aeronautical engineering: A continuing bibliography, supplement 122 [PDF]
This bibliography lists 303 reports, articles, and other documents introduced into the NASA scientific and technical information system in April ...
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, 2009 Being able to accurately predict the lifetime of polyolefins is very important in industry for water and gas distribution systems. Having reliable knowledge of the lifespan and maintenance requirements of such networks is crucial to be able to schedule ...
Atteck, James Alexander Charles +1 more
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Effect of exposure cycle on hot salt stress corrosion of a titanium alloy [PDF]
The influence of exposure cycle on the hot-salt stress-corrosion cracking resistance of the Ti-8Al-1Mo-1V alloy was determined. Both temperature and stress were cycled simultaneously to simulate turbine-powered aircraft service cycles.
Gray, H. R., Johnston, J. R.
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Review of the Effects of Microstructure on Fatigue in Aluminum Alloys [PDF]
Literature survey was conducted to determine the effects of different microstructural features and different load histories on fatigue crack initiation and propagation of aluminum alloys.
Telesman, J.
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A film-rupture model of hydrogen-induced, slow crack growth in alpha-beta titanium [PDF]
The appearance of the terrace like fracture morphology of gaseous hydrogen induced crack growth in acicular alpha-beta titanium alloys is discussed as a function of specimen configuration, magnitude of applied stress intensity, test temperature, and ...
Nelson, H. G.
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