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.
Papers published on a yearly basis
Papers
More filters
TL;DR: In this article, an in-situ scanning vibrating electrode technique (SVET) was used to characterize microscopically the local electrochemistry of grain and grain boundary in an X70 steel in a near-neutral pH solution.
62 citations
61 citations
TL;DR: In this paper, the authors established critical surface conditions leading to the initiation of stress-corrosion cracks on the as-supplied surfaces of three unidirectional E-glass/polymer composites with modified polyester, epoxy and vinyl ester resins subjected to a nitric acid solution without mechanical loads.
61 citations
TL;DR: In this paper, the authors investigated the stress corrosion cracking of Mg-Al alloys in distilled water using scanning electron microscopy (SEM) of the fracture surfaces, for the two-phase alloy AZ91 and the single-phase alloys AZ31 and AM30.
Abstract: Mechanisms for the stress corrosion cracking (SCC) of Mg-Al alloys have been investigated by scanning electron microscopy (SEM) of the fracture surfaces, for the two-phase alloy AZ91 and the single-phase alloys AZ31 and AM30 in distilled water. The mechanism for crack initiation in AZ31 and AM30 involves localized dissolution. The mechanisms for crack propagation in AZ31 and AM30 involve microvoid coalescence and cleavage, respectively. The mechanism for crack initiation in AZ91 is unclear, but may involve the fracture of β particles near the surface. The mechanism for crack propagation at moderate strain rates in AZ91 is similar to that in AZ31, with β particles acting as sources of H for mobile dislocations. The fracture surface for AZ91 tested at the strain rate 3 × 10−8 s−1 was similar to that for specimens precharged in gaseous H2. This fracture surface is the result of (1) the nucleation and growth of MgH2 particles, (2) sudden fracture through the MgH2 particles at some critical stress, and (3) decomposition of the MgH2 particles after fracture.
61 citations
TL;DR: In this article, the effects of loading mode and dissolved oxygen and hydrogen on crack growth rate were experimentally quantified using contoured double cantilever beam (CDCB) specimens and an alternating current potential drop (ACPD) in situ crack length monitoring system.
61 citations