Mechanical properties of a two-phase alloy Mg-8%Li-1%Al processed by equal channel angular pressing

被引：82

作者：

Liu, T ^{[1
]}

Zhang, W ^{[1
]}

Wu, SD ^{[1
]}

Jiang, CB ^{[1
]}

Li, SX ^{[1
]}

Xu, YB ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2003年 / 360卷 / 1-2期

关键词：

equal channel angular pressing; mechanical properties; magnesium alloy; two-phase alloy; strength; plasticity;

D O I：

10.1016/S0921-5093(03)00494-5

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The microstructural evolution and room temperature tensile properties of Mg-8%Li-1%Al alloy processed by equal channel angular pressing (ECAP) at 403 K were investigated. It was found that the strength could be improved pass by pass. The elongation-to-failure decreased dramatically after the first ECAP pass, but could be improved pass by pass during the subsequent ECAP procedure. The microstructure analysis gave the explanations for these phenomena. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：345 / 349

页数：5

共 17 条

[1] Magnesium alloys development towards the 21st century [J].

Aghion, E ;

Bronfin, B .

MAGNESIUM ALLOYS 2000, 2000, 350-3 :19-28

[2] Microstructural evolution during formation of ultrafine grain structures by severe deformation [J].

Bowen, JR ;

Prangnell, PB ;

Humphreys, FJ .

MATERIALS SCIENCE AND TECHNOLOGY, 2000, 16 (11-12) :1246-1250

[3] The effect of strain path on the development of deformation structures in severely deformed aluminium alloys processed by ECAE [J].

Gholinia, A ;

Prangnell, PB ;

Markushev, MV .

ACTA MATERIALIA, 2000, 48 (05) :1115-1130

[4] Alloy development, processing and applications in magnesium lithium alloys [J].

Haferkamp, H ;

Boehm, R ;

Holzkamp, U ;

Jaschik, C ;

Kaese, V ;

Niemeyer, M .

MATERIALS TRANSACTIONS, 2001, 42 (07) :1160-1166

[5] Development of fine grained structures using severe plastic deformation [J].

Horita, Z ;

Furukawa, M ;

Nemoto, M ;

Langdon, TG .

MATERIALS SCIENCE AND TECHNOLOGY, 2000, 16 (11-12) :1239-1245

[6] The process of grain refinement in equal-channel angular pressing [J].

Iwahashi, Y ;

Horita, Z ;

Nemoto, M ;

Langdon, TG .

ACTA MATERIALIA, 1998, 46 (09) :3317-3331

[7] An investigation of microstructural evolution during equal-channel angular pressing [J].

Iwahashi, Y ;

Horita, Z ;

Nemoto, M ;

Langdon, TG .

ACTA MATERIALIA, 1997, 45 (11) :4733-4741

[8] Mechanical properties and microstructures of an AZ61 Mg Alloy produced by equal channel angular pressing [J].

Kim, WJ ;

An, CW ;

Kim, YS ;

Hong, SI .

SCRIPTA MATERIALIA, 2002, 47 (01) :39-44

[9] Project of platform science and technology for advanced magnesium alloys [J].

Kojima, Y .

MATERIALS TRANSACTIONS, 2001, 42 (07) :1154-1159

[10] Ductility enhancement in AZ31 magnesium alloy by controlling its grain structure [J].

Mukai, T ;

Yamanoi, M ;

Watanabe, H ;

Higashi, K .

SCRIPTA MATERIALIA, 2001, 45 (01) :89-94

← 1 2 →