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Creep Resistance Of A Cast Mg-3Er-0.2Mn Alloy

Wang Zhongjun, Zhu Jing, Wang Zhaojing, Kang Baohua

Volume 2, Issue 2, Page 153-156, Year 2011 | DOI: 10.5185/amlett.2010.12222

Keywords:

Microstructure; creep properties; erbium; magnesium alloy

Abstract: 

In this paper, the microstructure and creep properties of a cast Mg-3Er-0.2Mn alloy was investigated. The results showed that the cast alloy under both as-cast and solution treated conditions is mainly composed of α-(Mg) matrix and Mg24Er5 phase particles. The value of activation energy Q (240~244KJ/mol), for creep deformation of the solution treated alloy, was calculated in the temperature range of 190~210 oC, and in the stress range of 50~60 MPa, respectively, which can explain that the creep mode involved cross slip of dislocations from basal to prismatic planes in the hexagonal structure or climb. Copyright © 2011 VBRI press.

 

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