Stress corrosion cracking of a recent rare-earth containing magnesium alloy, EV31A, and a common Al-containing alloy, AZ91E

被引：64
|
作者：
Padekar, Bharat S. [1 ,3 ]
Raman, R. K. Singh [1 ,2 ]
Raja, V. S. [3 ]
Paul, Lyon [4 ]
机构：
[1] Monash Univ, Dept Mech & Aerosp Engn, Melbourne, Vic 3800, Australia
[2] Monash Univ, Dept Chem Engn, Melbourne, Vic 3800, Australia
[3] Indian Inst Technol, Dept Met Engn & Mat Sci, Mumbai 400076, Maharashtra, India
[4] Magnesium Elektron Ltd, Manchester, Lancs, England
来源：
CORROSION SCIENCE | 2013年 / 71卷
关键词：
Magnesium; SEM; Stress corrosion; SIMULATED BODY-FLUID; PHYSIOLOGICAL ENVIRONMENT; TRANSGRANULAR SCC; MG; MICROSTRUCTURE; BEHAVIOR; ZN; SUSCEPTIBILITY; EMBRITTLEMENT; DEGRADATION;
D O I：
10.1016/j.corsci.2013.01.001
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Stress corrosion cracking of the magnesium alloy Elektron 21 (ASTM-EV31A) and AZ91E was studied using constant load test in 0.1 M NaCl solution (saturated with Mg(OH)(2), and slow strain rate test using glycerol, distilled water and Mg(OH)(2) saturated, 0.01 M and 0.1 M NaCl solutions. Slow strain rate test indicated that EV31A was less susceptible to stress corrosion cracking than AZ91E. Under less intense loading of constant load, EV31A was found to be resistant to stress corrosion cracking. Fractography of EV31A specimens showed little evidence of hydrogen embrittlement. The superior resistance of EV31A is attributed to a more robust oxide/hydroxide layer. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1 / 9
页数：9
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