Effect of Zn, Cu and Ni addition on microstructure and mechanical properties of as-cast Mg-Dy alloys

被引：8

作者：

Bi, Guang-li ^{[1
,2
]}

Luo, Xiao-mei ^{[1
,2
]}

Jiang, Jing ^{[1
,2
]}

Zhang, Yong-gang ^{[1
,2
]}

Xu, Jian-ji ^{[1
,2
]}

Chen, Jie-ming ^{[1
,2
]}

Li, Yuan-dong ^{[1
,2
]}

Ma, Ying ^{[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

来源：

CHINA FOUNDRY | 2016年 / 13卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Mg-Dy-Zn(Cu; Ni); alloys; LPSO phase; microstructure; mechanical properties; STACKING ORDERED PHASE; PERIOD; BEHAVIOR;

D O I：

10.1007/s41230-016-5062-6

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

This paper presents some research information on the effects of Zn, Cu and Ni on the microstructure and mechanical properties of as-cast Mg-2Dy (at.%) alloys. The Mg-2Dy alloy is composed of a-Mg and Mg24Dy5 phases. With the addition of 0.5at.%Zn, 0.5at.%Cu and 0.5at.%Ni, respectively, besides alpha-Mg, the long period stacking order (LPSO) phases containing Zn, Cu, and Ni precipitated in the alpha-Mg interdentritic boundary. The addition of Ni effectively refined the dendrite arm spacing. The as-cast Mg-2Dy-0.5Ni alloy exhibited the best tensile strengths and elongation. The better mechanical properties were mainly attributed to small secondry dendrite arm spacing (SDAS) and high volume fraction of LPSO phases.

引用

页码：54 / 58

页数：5

共 18 条

[1] Deformation behavior of an extruded Mg-Dy-Zn alloy with long period stacking ordered phase [J].

Bi, Guangli ;

Li, Yuandong ;

Huang, Xiaofeng ;

Chen, Tijun ;

Lian, Jianshe ;

Jiang, Zhonghao ;

Ma, Ying ;

Hao, Yuan .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2015, 622 :52-60

[2] Microstructure, mechanical and corrosion properties of Mg-2Dy-xZn (x = 0, 0.1, 0.5 and 1 at.%) alloys [J].

Bi, Guangli ;

Li, Yuandong ;

Zang, Shijun ;

Zhang, Jianbin ;

Ma, Ying ;

Hao, Yuan .

JOURNAL OF MAGNESIUM AND ALLOYS, 2014, 2 (01) :64-71

[3] Double-peak ageing behavior of Mg-2Dy-0.5Zn alloy [J].

Bi, Guangli ;

Fang, Daqing ;

Zhao, Lei ;

Zhang, Qingxin ;

Lian, Jianshe ;

Jiang, Qing ;

Jiang, Zhonghao .

JOURNAL OF ALLOYS AND COMPOUNDS, 2011, 509 (32) :8268-8275

[4] An elevated temperature Mg-Dy-Zn alloy with long period stacking ordered phase by extrusion [J].

Bi, Guangli ;

Fang, Daqing ;

Zhao, Lei ;

Lian, Jianshe ;

Jiang, Qing ;

Jiang, Zhonghao .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2011, 528 (10-11) :3609-3614

[5] Effect of long-period stacking ordered phase on mechanical properties of Mg97Zn1Y2 extruded alloy [J].

Hagihara, K. ;

Kinoshita, A. ;

Sugino, Y. ;

Yamasaki, M. ;

Kawamura, Y. ;

Yasuda, H. Y. ;

Umakoshi, Y. .

ACTA MATERIALIA, 2010, 58 (19) :6282-6293

[6] A high-strength Mg-Ni-Y alloy sheet with a long-period ordered phase prepared by hot-rolling [J].

Itoi, T. ;

Takahashi, K. ;

Moriyama, H. ;

Hirohashi, M. .

SCRIPTA MATERIALIA, 2008, 59 (10) :1155-1158

[7]

Jongbeom L, 2009, MAT T, V50, P222

[8] Elevated temperature Mg97Y2Cu1 alloy with long period ordered structure [J].

Kawamura, Yoshihito ;

Kasahara, Takayuki ;

Izumi, Shogo ;

Yamasaki, Michiaki .

SCRIPTA MATERIALIA, 2006, 55 (05) :453-456

[9] Microstructure and high mechanical properties of Mg-9RY-4Zn (RY: Y-rich misch metal) alloy with long period stacking ordered phase [J].

Leng, Zhe ;

Zhang, Jinghuai ;

Zhang, Milin ;

Liu, Xuhe ;

Zhan, Haibo ;

Wu, Ruizhi .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2012, 540 :38-45

[10] Stability and formation of long period stacking order structure in Mg-based ternary alloys [J].

Liu, Zi-Ran ;

Li, Dong-Yang .

COMPUTATIONAL MATERIALS SCIENCE, 2015, 103 :90-96

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