Behavior of stress corrosion cracking in a magnesium alloy |
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| Authors: | Renguo Song Fanger Yang Carsten Blawert Wolfgang Dietzel |
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| Affiliation: | 1.The MOE Key Laboratory of Mechanical Manufacture and Automation,Zhejiang University of Technology,Hangzhou,China;2.Center of Magnesium Technology, Institute of Materials Research,GKSS-Forschungszentrum Geesthacht GmbH,Geesthacht,Germany |
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| Abstract: | Slow strain rate testing (SSRT) was employed to study the stress corrosion cracking (SCC) behavior of ZE41 magnesium alloy
in 0.01 M NaCl solution. Smooth tensile specimens with different thicknesses were strained dynamically in both longitudinal
and transverse direction under permanent immersions at a strain rate of 10−6 s−1. It is found that ZE41 magnesium alloy is susceptible to SCC in 0.01 M NaCl solution. The SCC susceptibility of the thinner
specimen is lower than that of the thicker specimen. Also, the longitudinal specimens are slightly more susceptible to SCC
than the transverse specimens. The SCC mechanism of magnesium alloy is attributed to the combination of anodic dissolution
with hydrogen embrittlement.
Funded by the National Natural Science Foundation of China (No. 50771093) |
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| Keywords: | magnesium alloy stress corrosion cracking slow strain rate testing (SSRT) |
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