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Stress corrosion cracking

About: Stress corrosion cracking is a research topic. Over the lifetime, 11340 publications have been published within this topic receiving 138157 citations.


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TL;DR: In this paper, the performance of Ti alloys in repository environments is reviewed in relation to their degradation modes, including general corrosion, localized corrosion, stress corrosion cracking, hydrogen-induced cracking, microbiologically influenced corrosion, and radiation-assisted corrosion.
Abstract: Titanium alloy degradation modes are reviewed in relation to their performance in repository environments. General corrosion, localized corrosion, stress corrosion cracking, hydrogen-induced cracking, microbiologically influenced corrosion, and radiation-assisted corrosion of Ti alloys are considered. With respect to the Ti Grade 7 drip shields selected for emplacement in the repository at Yucca Mountain, general corrosion, hydrogen-induced cracking, and radiation-assisted corrosion either do not initiate or propagate sufficiently fast over a 10,000-year time frame in likely repository environments to cause penetration of the drip shield. Stress corrosion cracking (in the absence of disruptive events) is of no consequence to barrier performance; and localized corrosion and microbiologically influenced corrosion are not expected to occur. To facilitate the discussion, Ti Grades 2, 5, 7, 9, 11, 12, 16, 17, 18, and 24 are included in this review.

62 citations

Journal ArticleDOI
TL;DR: In this paper, the authors analyzed the acoustic emission (AE) signals to determine the micro-process during stress corrosion cracking (SCC) of AISI type 316LN stainless steel that cause the AE, and thus the mechanism of the SCC process.

62 citations

Journal ArticleDOI
TL;DR: In this article, the surface energy associated with crack formation is reduced by the adsorption of atom or ion species in the stress-corrosion medium, and the dependence has been analyzed in terms of the Petch-Stroh equations for dislocation nucleated cracks to yield the effective surface energies.

62 citations

Journal ArticleDOI
TL;DR: In this article, the weld joint of 304 stainless steel is treated with high energy shot peening (HESP) with various shot-peening pressures, and the grain size and metallographic microstructure of the specimen surface layer are analyzed using the X-ray diffraction method, and surface hardness is measured.
Abstract: The weld joint of 304 stainless steel is treated using high energy shot peening(HESP) with various shot peening pressures. The grain size and metallographic microstructure of the specimen surface layer are analyzed using the X-ray diffraction method, and the surface hardness is measured. Slow strain rate tension tests are then performed to investigate the effect of shot peening pressure on the stress corrosion sensitivity. The results show that in the surface layer of the specimen, the grain refinement, hardness and the strain-induced plastic deformation all increase with the increasing shot peening pressure. Martensitic transformation is observed in the surface layer after being treated with HESP. The martensite phase ratio is found to increase with increasing shot peening pressure. The result also shows that the effects of the shot peening treatment on the stress corrosion sensitivity index depend on the shot peening pressure. When the shot peening pressure is less than 0.4 MPa, the grain refinement effect plays the main role, and the stress corrosion sensitivity index decreases with the increasing shot peening pressure. In contrast, when the shot peening pressure is higher than 0.4 MPa, the martensite transformation effect plays the main role, the stress corrosion sensitivity index increases with increasing shot peening pressure.

62 citations

Journal ArticleDOI
TL;DR: In this paper, the authors investigated the corrosion behavior of friction stir welded aerospace Al−Zn−Mg and Al −Zn-Mg alloys and found that the thermo-mechanically affected zones adjacent to weld nugget are most susceptible to corrosion in two weld joints.

62 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023181
2022356
2021275
2020272
2019338
2018275