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| FATIGUE BEHAVIOR OF ROLLED AZ31B MAGNESIUM ALLOY IN AIR AND NaCl SOLUTION |
| ZHOU Huamao; WANG Jianqiu; ZHANG Bo; HAN Enhou; ZANG Qishan |
| State Key Laboratory for Corrosion and Protection;Institute of Metal Research;Chinese Academy of Sciences; Shenyang 110016 |
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Abstract Fatigue crack initiation of rolled AZ31B magnesium alloy in air and NaCl solution was investigated. In air, the cracked second phases were responsible for crack initiation. While in NaCl solution, crack initiated from surface damage which was produced by pit corrosion or filiform corrosion. Increasing Cl- concentration, the crack initiation and propagation in NaCl solutions were enhanced and the fatigue lifetime was decreased.
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Received: 29 May 2007
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Corresponding Authors:
WANG Jianqiu
E-mail: jiqwang@imr.ac.cn
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