MICROSTRUCTURE AND CREEP PROPERTIES OF AJ62 AND AE44 DIE-CASTING MAGNESIUM ALLOYS

被引：8
|
作者：
Kielbus, Andrzej [1 ]
Rzychon, Tomasz [1 ]
机构：
[1] Silesian Tech Univ, Katowice, Poland
来源：
THERMEC 2009, PTS 1-4 | 2010年 / 638-642卷
关键词：
AE44; AJ62; magnesium alloys; microstructure; creep properties; BEHAVIOR;
D O I：
10.4028/www.scientific.net/MSF.638-642.1546
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Microstructure and tensile creep behaviour of the die-cast AE44 and AJ62 magnesium alloys has been studied at temperatures between 175 degrees C and 200 degrees C and at stresses in the range from 60 to 75 MPa. At the 175 degrees C the AJ62 and AE44 alloys exhibit good creep resistance after 120h creep deformation At 200 degrees C the AE44 alloy shows still good creep resistance, whereas in the case of AJ62 alloy the rapid decreasing of creep resistance has been observed TEM observations reveal dislocations cell structure in AE44 alloy after creep test. In AJ62 alloy subgrain formation and decreasing the dislocation density have been observed.
引用
收藏
页码：1546 / 1551
页数：6
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