MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
ISSN-L : 1345-9678
Investigation of Stress Corrosion Cracking Behaviors of an AZ91 Magnesium Alloy in 0.1 kmol/m3 Na2SO4 Solution Using Slow Strain Rate Test
Jianqiu WangJian ChenEnhou HanWei Ke
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2008 Volume 49 Issue 5 Pages 1052-1056

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Abstract

The stress corrosion cracking (SCC) behavior of an as-cast AZ91 magnesium alloy in 0.1 kmol/m3 Na2SO4 solution was investigated using slow strain rate test (SSRT). The results showed that both the uncharged and charged AZ91 alloy occurred transgranular stress corrosion cracking (TGSCC), which were characteristic of large-plane cleavage fracture. Pre-charging had little influences on mechanical properties. It indicated that hydrogen embrittlement (HE) was the main mechanism for the SCC of AZ91 alloy in 0.1 kmol/m3 Na2SO4 solution.

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© 2008 The Japan Institute of Metals and Materials
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