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

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Title Stress corrosion cracking of a recent rare-earth containing magnesium alloy, EV31A, and a common Al-containing alloy, AZ91E
 
Creator PADEKAR, BS
RAMAN, RKS
RAJA, VS
PAUL, L
 
Subject Magnesium
SEM
Stress corrosion
SIMULATED BODY-FLUID
PHYSIOLOGICAL ENVIRONMENT
TRANSGRANULAR SCC
MG
MICROSTRUCTURE
BEHAVIOR
ZN
SUSCEPTIBILITY
EMBRITTLEMENT
DEGRADATION
 
Description 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.
 
Publisher PERGAMON-ELSEVIER SCIENCE LTD
 
Date 2014-10-15T13:57:09Z
2014-10-15T13:57:09Z
2013
 
Type Article
 
Identifier CORROSION SCIENCE, 711-9
http://dx.doi.org/10.1016/j.corsci.2013.01.001
http://dspace.library.iitb.ac.in/jspui/handle/100/15042
 
Language en