Evaluation for Strengthening Action of Mg-5Y-3Sm-0.8Ca-0.5Sb Alloy AITranslate

1SUZUKI Mayumi, SATO Hiroyuki, MARUYAMA Kouich,et al. Creep deformation behavior and disloca- tion substructures of Mg-Y binary alloys[J]. Materials Science and Engineering A,2001,319/321:751-755.

2SUZUKI Magymi, KIMURA Tsuyoshi, KOIKE Junichi, et al. Effects of zinc on creep strength and deformation substructures in Mg-Y alloy[J]. Materials Science and Engineering A, 2004,387/389 : 706-709.

3ROKHLIN L L, DOBATKINA T V, NIKTINA N I. Constitution and properties of the ternary magnesium alloys containing two rare-earth metals of different sub- groups[J]. Materials Science Forum, 2003,419/422 : 291 -296.

8ZHANG Qing, LI Quanan, JING Xiaotian, et al. Micro- structure and mechanical properties of Mg-10Y-2.5Sm alloy[J]. Journal of Rare Earths, 2010,28 (S1) : 375- 377.

9CACERS C H, ROVERA D M. Solid solution strength- ening in concentrated Mg-A1 alloys[J]. Journal of Light Metals,2001,1 (3) : 151-156.

Basic Information:

DOI：

Chinese Library Classification Number:TG146.22[金属学及工艺—金属材料]

Citation Information:

The contributions of strengthening action for yield strength of aged Mg-5Y-3Sm-0.8Ca-0.5Sb alloy were investigated by microstructure analysis,tensile tests and theoretic calculation.The results show that on the basis of grain-refinement strengthening,the alloy exhibits significant precipitation strengthening at the expense of losing part of solid solution strengthening,resulting in greatly increased yield strength.The contribution of solid solution strengthening for alloy yield strength is slightly less than that of grain-refinement strengthening,and the contribution of precipitation strengthening is more than 50% total yield strength.