Stress corrosion cracking susceptibility of a high strength Mg-7%Gd-5%Y-1%Nd-0.5%Zr alloy

10Citations
Citations of this article
17Readers
Mendeley users who have this article in their library.

Abstract

Through performing the tensile tests with different strain rates in 3.5 wt.% NaCl solution, the stress corrosion cracking (SCC) behavior and the effect of strain rate on the SCC susceptibility of an extruded Mg-7%Gd-5%Y-1%Nd-0.5%Zr (EW75) alloy have been investigated. Results demonstrate that the alloy is susceptible to SCC when the strain rate is lower than 5 × 10-6 s-1. At the strain rate of 1 × 10-6 s-1, the SCC susceptibility index (ISCC) is 0.96 and the elongation-to-failure (εf) is only 0.11%. Fractography indicates that the brittle quasi-cleavage feature is very obvious and become more pronounced with decreasing the strain rate. Further analysis confirms that the cracking mode is predominantly transgranular, but the partial intergranular cracking at some localized area can also occur. Meanwhile, it seems that the crack propagation path is unrelated to the existing phase particles.

Cite

CITATION STYLE

APA

Wang, S. D., Xu, D. K., Han, E. H., & Dong, C. (2014). Stress corrosion cracking susceptibility of a high strength Mg-7%Gd-5%Y-1%Nd-0.5%Zr alloy. Journal of Magnesium and Alloys, 2(4), 335–341. https://doi.org/10.1016/j.jma.2014.11.004

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free