Hot salt stress corrosion cracking and its effect on tensile properties of Ti-8Al-1Mo-1V titanium-alloy sheet
Hot salt stress corrosion cracking effects on tensile properties of titanium alloy sheets
Royster, D. M.↗
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Study of the general mechanism of stress corrosion of aluminum alloys and development of techniques for its detection Annual summary report, 2 Jun. 1967 - 1 Jun. 1968
Stress corrosion cracking of high strength aluminum alloys investigated by electrochemical, mechanical, and electron microscopic techniques
Bell, R. O.↗
Development of an Accelerated Stress-Corrosion Test for Ferrous and Nickel Alloys Final Summary Report, Mar. 1966 - Mar. 1968
Accelerated laboratory test for evaluation of stress corrosion susceptibility of ferrous and nickel alloys in seashore environment
Freedman, A. H.↗
Study of the general mechanism of stress corrosion of aluminum alloys and development of techniques for its detection Quarterly report, 1 May - 31 Aug. 1968
Mechanism of stress corrosion cracking in aluminum alloys and techniques for detection of surface defects
Bell, R. O.↗
The effect of composition on the mechanism of stress-corrosion cracking of titanium alloys in N2O4, and aqueous and hot-salt environments, part 2
Metal composition effects on stress corrosion cracking of titanium alloys in nitrogen tetroxide, water, and salt
Boyd, J. D.↗
The mechanisms of stress corrosion of the titanium alloy Ti 8-1-1 exposed to salt environments at elevated temperatures Final report
Mechanisms of slat stress corrosion cracking of titanium alloys at high temperatures
TITANIUM ALLOY↗
Study of the general mechanism of stress corrosion of aluminum alloys and development of techniques for its detection Quarterly report, 1 Sep. - 30 Nov. 1967
General mechanism of stress corrosion of aluminum alloys and ultrasonic detection techniques
Bell, R. O.↗
Stress corrosion cracking of titanium alloys at ambient temperature in aqueous solutions Quarterly progress report, Oct. - Dec. 1969
Aluminum concentration effects on stress corrosion cracking of titanium alloys in aqueous solutions
Mackay, T. L.↗
Stress corrosion cracking of aluminum and steel in dimethyl dichlorovinyl phosphate
Effects of dimethyl-dichlorovinyl phosphate and sodium chloride solution on stress corrosion cracking of aluminum and steel
Humphries, T. S.↗
Stress corrosion cracking studies involving aluminum alloy single and bicrystals /Project Bixtal/ Final report, 30 Jun. 1969 - 30 Jul. 1970
Heat treatment and stress corrosion analyses on aluminum alloy single- and bicrystal- microstructures
Fabiniak, T. J.↗
Some important considerations in the development of stress corrosion cracking test methods.
Discussion of some of the precaution needs the development of fracture-mechanics based test methods for studying stress corrosion cracking involves. Following a review of pertinent analytical fracture mechanics considerations and of basic test methods, the implications for test corrosion cracking studies of the time-to-failure determining kinetics of crack growth and life are examined. It is shown that the basic assumption of the linear-elastic fracture mechanics analyses must be clearly recognized and satisfied in experimentation and that the effects of incubation and nonsteady-state crack growth must also be properly taken into account in determining the crack growth kinetics, if valid data are to be obtained from fracture-mechanics based test methods.
Wei, R. P.↗
Stress-Corrosion Cracking in Martensitic PH Stainless Steels
Precipitation-hardening alloys evaluated in marine environment tests. Report describes marine-environment stress-corrosion cracking (SCC) tests of three martensitic precipitation hardening (PH) stainless-steel alloys.
Humphries, T.↗
The effect of composition on the mechanism of stress-corrosion cracking of titanium alloys in nitrogen tetroxide, and aqueous and hot- salt environments Annual summary report, 1 May 1967 - 30 Apr. 1968
Stress corrosion data for titanium alloys in aqueous, hot salt, and nitrogen dioxide environments
Boyd, J. D.↗
Stress Corrosion Cracking of Certain Aluminum Alloys
SC resistance of new high-strength alloys tested. Research report describes progress in continuing investigation of stress corrosion (SC) cracking of some aluminum alloys. Objective of program is comparing SC behavior of newer high-strength alloys with established SC-resistant alloy.
Hasse, K. R.↗
The role of hydrogen in hot-salt stress corrosion cracking of titanium-aluminum alloys
Additional support is presented for the previously proposed role of hydrogen as an embrittling agent in hot-salt stress corrosion cracking of titanium-aluminum alloys. The main source of hydrogen formed during the reactions of titanium alloys with hot salt was identified as water associated with the salt. Hydrogen is produced by the reaction of an intermediate (hydrogen halide) with the alloy rather than from metal-water reactions. The fracture mode of precracked tensile specimens was ductile when the specimens were tested in air, and brittle when tests were made in high-pressure hydrogen. Stressed titanium-aluminum alloys also were cracked by bombardment with hydrogen ions produced in a proton accelerator. The approximate concentrations of the hydrogen ions in the alloys were calculated.
Ondrejcin, R. S.↗
Study of the General Mechanism of Stress Corrosion of Aluminum Alloys and Development of Techniques for Its Detection Final Report, 1 Jun. 1966 - 1 Jun. 1969
Feasibility of instrumental methods to detect stress corrosion cracking property of aluminum alloys
Bell, R. O.↗
Stress corrosion cracking of titanium alloys
The effect of hydrogen on the properties of metals, including titanium and its alloys, was investigated. The basic theories of stress corrosion of titanium alloys are reviewed along with the literature concerned with the effect of absorbed hydrogen on the mechanical properties of metals. Finally, the basic modes of metal fracture and their importance to this study is considered. The experimental work was designed to determine the effects of hydrogen concentration on the critical strain at which plastic instability along pure shear directions occurs. The materials used were titanium alloys Ti-8Al-lMo-lV and Ti-5Al-2.5Sn.
Statler, G. R.↗
Effect of Material Condition on Stress Corrosion Crack Initiation of Cold-Worked Alloy 600 in Simulated PWR Primary Water
The effect of material condition and grain boundary (GB) carbides on stress corrosion crack (SCC) initiation was evaluated on a cold-worked Alloy 600 heat in the solution annealed and thermally treated conditions. SCC initiation response of these material conditions were investigated by constant load testing in simulated pressurized water reactor primary coolant environments. Direct current potential drop technique was used for in-situ detection of SCC initiation. With periodic examination of the specimens, evolution of precursor damage including intergranular attack and short cracks was carefully documented and compared to data previously obtained from unstressed coupons with the same material conditions and were exposed to the same environment. Results revealed a predominant role of mechanical factors in the development of precursor damage with no apparent improvement of GB carbides on SCC initiation resistance.
Zhai, Ziqing↗