Abstract
In order to study the effect of grain boundary on stress corrosion cracking (SCC) of α-brass, SCC tests were carried out on Cu-30.6 at%Zn alloy bicrystals in ammoniacal vapor at 303±2K. The susceptibility of the grain boundary to SCC was found to be higher than that of slip step sites in the present bicrystals with an about 15° off-coincidence Σ=13b boundary surface energy although it has been regarded to be as high as that of the so-called general boundary. Tubular pits which are considered to be initiated by the mechanism proposed by Pickering and Swann were mostly observed at the grain boundary and rarely on the crystal surface. Fine cracks propagating along the trace of {110} or {111} in the grain interior were observed not to grow into the main crack responsible to fracture.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of the Society of Materials Science, Japan
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
