2710 低歪速度法によるマグネシウム合金の応力腐食割れ評価(S19-3 アルミニウム合金,マグネシウム合金(3),S19 アルミニウム合金およびマグネシウム合金の創製と加工技術)

概要

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Magnesium alloy have been used as a structural material in automobile components for its light weight and recycle reliability. However, the magnesium alloy is very active and electrochemically less noble. Yet, the control of stress corrosion cracking (SCC) is becoming a major issue in structural application. In this study, therefore, the evaluation to SCC of AZ61 magnesium alloy is investigated with slow strain rate technique (SSRT) in sodium chloride solutions at 298K. The susceptibility to SCC increases when sodium chloride concentration becomes high. Although the SCC susceptibility in 0.004wt% sodium chloride solution decreases with an increase of strain rate, the dependence on strain rate becomes larger as compared with 4wt% sodium chloride solution.
社団法人日本機械学会の論文
2007-09-07