Compressive anisotropy of extruded Mg-Dy-Zn alloy sheet

被引：4
|
作者：
Luo, Xiao-mei [1 ,2 ]
Bi, Guang-li [1 ,2 ]
Jiang, Jing [1 ,2 ]
Li, Ming [1 ,2 ]
Li, Rong-guang [3 ]
Li, Yuan-dong [1 ,2 ]
Ma, Ying [1 ,2 ]
Hao, Yuan [1 ,2 ]
机构：
[1] Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China
[2] Lanzhou Univ Technol, Key Lab Nonferrous Met Alloys & Proc, Minist Educ, Lanzhou 730050, Peoples R China
[3] Shenyang Univ Chem Technol, Sch Mech Engn, Shenyang 110142, Peoples R China
来源：
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2016年 / 26卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Mg-Dy-Zn alloy; microstructure; texture; LPSO phase; compressive anisotropy; MECHANICAL-PROPERTIES; MICROSTRUCTURE EVOLUTION; DEFORMATION-BEHAVIOR; LPSO PHASE; MAGNESIUM; TEXTURE; FORMABILITY;
D O I：
10.1016/S1003-6326(16)64127-4
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Compressive anisotropy of extruded Mg-2Dy-0.5Zn (mole fraction, %) alloy sheet was investigated. The alloy sheet was mainly composed of a-Mg, (Mg, Zn)(x)Dy phase and a large number of long period stacking ordered (LPSO) phases distributed along the extrusion direction. The compressive experimental results show that the alloy sheet exhibits an obvious compressive anisotropy. The compressive strength of the specimen in the extrusion direction (ED) is higher than those of the specimens in the transverse direction (TD) and 45 degrees inclined to the extrusion direction. The compressive yield strength (CYS), ultimate compressive strength (UCS) and compressive strain of the specimen in the ED are 274.65 MPa, 518.94 MPa and 12.93%, respectively. The compressive anisotropy is mainly attributed to the distribution of LPSO phase and formation of < 10 (1) over bar0 > // ED fiber texture in the deformed grains.
引用
收藏
页码：390 / 397
页数：8
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