Topic
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 article, the relationship between recrystallization and corrosion behavior of Al-Zn-Mg-Cu alloys has been investigated, and it was shown that the addition of Sc and Zr to Al−Zn−Mg−Cu alloy can improve the corrosion resistance observably.
112 citations
TL;DR: Stress corrosion cracking in AISI 4340 steel was studied utilizing an Sb/Sb2O3 Ag/AgCl probe which simultaneously measured the crack tip electropotential and the electrolyte pH of the regi...
Abstract: Stress corrosion cracking in AISI 4340 steel was studied utilizing an Sb/Sb2O3 Ag/AgCl probe which simultaneously measures the crack tip electropotential and the electrolyte pH of the regi...
112 citations
TL;DR: In this paper, single crystals of various cap alpha-phase Cu-Zn and Cu-Al alloys have been tested for dealloying and stress-corrosion cracking (SCC) in cuprous ammonia solutions.
Abstract: Single crystals of various ..cap alpha..-phase Cu-Zn and Cu-Al alloys have been tested for dealloying and stress-corrosion cracking (SCC) in cuprous ammonia solutions. All tests were done at the equilibrium potential of a copper electrode. The dealloying tests were done by scratching coated specimens and measuring the consequent anodic current transients, and the SCC tests used a constant extension rate. The rate of dealloying increased almost discontinuously between 17 and 20 atom percent (a/o) Zn and between 11 and 16 a/o Al. These ''parting limits'' corresponded identically to the onset of transgranular SCC in both systems. The results support a percolation model of dealloying and a film-induced cleavage model for stress-corrosion cracking.
112 citations
TL;DR: In this article, two patches of near-neutral-pH stress corrosion cracks (SCC) developed on a pipeline steel during service were characterized, and the two patches can be characterized as containing e...
Abstract: Two patches of near-neutral-pH stress corrosion cracks (SCC), as developed on a pipeline steel during service, have been characterized. The two patches can be characterized as containing e...
111 citations
15 Jan 2008-Materials Science and Engineering A-structural Materials Properties Microstructure and Processing
TL;DR: In this paper, the linearly increasing stress test (list) and the constant extension rate test (CERT) were used to identify the occurrence of SCC and, when coupled with a technique for characterizing crack extension, measuring the threshold stress and crack velocity.
Abstract: Transgranular stress corrosion cracking (TGSCC) of the Mg alloy AZ91 in distilled water and 5 g/L NaCl solution has been evaluated using the linearly increasing stress test (LIST) and the constant extension rate test (CERT). The differences between these techniques, with respect to fractography and the measurement of SCC parameters, are discussed. The LIST and CERT techniques are both useful in identifying the occurrence of SCC and, when coupled with a technique for characterizing crack extension, measuring the threshold stress and crack velocity. During a LIST fast fracture ensues a relatively short time after the threshold stress is attained, whereas during CERT crack growth over a much longer time period is facilitated by a reduction in stress. Consequently, the LIST is typically 30–50% shorter in duration, whereas the CERT produces a larger SCC fracture surface.
111 citations