Influence of Strain Path Change on the Microstructure and Mechanical Properties of Duplex Mg-Li Alloy

被引：1

作者：

Zou, Yun ^{[1
]}

Li, Yang ^{[2
]}

Guo, Hao ^{[1
]}

Xu, Songsong ^{[1
]}

Zhao, Yu ^{[1
,2
]}

Zhang, Milin ^{[1
]}

Zhang, Zhongwu ^{[1
]}

机构：

[1] Harbin Engn Univ, Coll Mat Sci & Chem Engn, Key Lab Supertight Mat & Surface Technol, Minist Educ, Harbin 150001, Peoples R China

[2] Zhengzhou Univ, Sch Mech Engn, Zhengzhou 450001, Peoples R China

来源：

MAGNESIUM TECHNOLOGY 2017 | 2017年

关键词：

Mg-Li alloy; Cross-rolling; Texture; Mechanical properties; MAGNESIUM ALLOYS; HOT DEFORMATION; TEXTURE; BEHAVIOR; SHEET; FORMABILITY; EVOLUTION; COPPER;

D O I：

10.1007/978-3-319-52392-7_40

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The microstructures, texture evolution, and mechanical properties of unidirectionally-rolled and cross-rolled Mg-9Li-6Er alloy were investigated in this paper. The results show that the Mg-9Li-6Er alloy mainly consists of alpha phase and beta phase along with Er5Mg24 eutectic. The strain path was changed between rolling passes during the cross-rolling process, which led to a weaker texture development compared to the conventional unidirectional-rolling method. At the same time, cross-rolling process makes the alloys have a much significant deformation strengthening effect than that of the unidirectionally-rolling process, which can be mainly attributed to the change in strain path, making the a phase distributes disorderly in the b phase and interacts with each other into a network. On the other hand, due to the disordered distribution of matrix phases, uniform plastic deformation is blocked, and thus the ductility is greatly lowered.

引用

页码：275 / 281

页数：7

共 32 条

[1] Application of texture simulation to understanding mechanical behavior of Mg and solid solution alloys containing Li or Y [J].

Agnew, SR ;

Yoo, MH ;

Tomé, CN .

ACTA MATERIALIA, 2001, 49 (20) :4277-4289

[2]

Agnew SR, 2002, METALL MATER TRANS A, V33, P851, DOI 10.1007/s11661-002-1017-1

[3] Hot deformation behavior of an extruded Mg-Li-Zn-RE alloy [J].

Chen, Zhaoyun ;

Li, Zhiqiang ;

Yu, Chun .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2011, 528 (03) :961-966

[4] The effect of alloy composition on the microstructure and tensile properties of binary Mg-rare earth alloys [J].

Chia, T. L. ;

Easton, M. A. ;

Zhu, S. M. ;

Gibson, M. A. ;

Birbilis, N. ;

Nie, J. F. .

INTERMETALLICS, 2009, 17 (07) :481-490

[5] Enhanced formability at elevated temperature of a cross-rolled magnesium alloy sheet [J].

Chino, Yasumasa ;

Sassa, Kensuke ;

Kamiya, Akira ;

Mabuchi, Mamoru .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2006, 441 (1-2) :349-356

[6]

Dhahri M, 2001, ADV ENG MATER, V3, P504, DOI 10.1002/1527-2648(200107)3:7<504::AID-ADEM504>3.0.CO

[7]

2-3

[8] Solid solution strengthening behaviors in binary Mg-Y single phase alloys [J].

Gao, L. ;

Chen, R. S. ;

Han, E. H. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 472 (1-2) :234-240

[9] Effect of mode of rolling on development of texture and microstructure in two-phase (α plus β) brass [J].

Garg, Rohini ;

Ranganathan, S. ;

Suwas, Satyam .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2010, 527 (18-19) :4582-4592

[10] Effect of strain path change on the evolution of texture and microstructure during rolling of copper and nickel [J].

Gurao, N. P. ;

Sethuraman, S. ;

Suwas, Satyam .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2011, 528 (25-26) :7739-7750

← 1 2 3 4 →