Equal channel angular pressing of magnesium alloy AZ31

被引：203

作者：

Xia, K ^{[1
]}

Wang, JT

Wu, X

Chen, G

Gurvan, M

机构：

[1] Univ Melbourne, Dept Mech & Mfg Engn, Parkville, Vic 3010, Australia

[2] Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, Nanjing 210094, Jiangsu, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2005年 / 410卷

基金：

澳大利亚研究理事会;

关键词：

equal channel angular pressing; severe plastic deformation; magnesium alloys; ultra-fine-grained microstructure; back pressure;

D O I：

10.1016/j.msea.2005.08.123

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Equal channel angular pressing (ECAP) was applied to a wrought magnesium alloy AZ31 for up to 8 passes at temperatures as low as 100 degrees C. The application of a back pressure was critical in deforming Mg alloys at lower temperatures. Room temperature mechanical properties were obtained by tensile and hardness tests. With increasing ECAP strain, the initial coarse grained structure was transformed into a submicrometer-grained microstructure. In general, hardness increased with decreasing grain size although the changes in tensile strength and ductility were more complicated. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：324 / 327

页数：4

共 13 条

[1] Enhanced ductility in strongly textured magnesium produced by equal channel angular processing [J].

Agnew, SR ;

Horton, JA ;

Lillo, TM ;

Brown, DW .

SCRIPTA MATERIALIA, 2004, 50 (03) :377-381

[2] Improvement of mechanical characteristics in severely plastic-deformed Mg alloys [J].

Chang, SY ;

Lee, SW ;

Kang, KM ;

Kamado, S ;

Kojima, Y .

MATERIALS TRANSACTIONS, 2004, 45 (02) :488-492

[3]

Kim HK, 2004, PRAKT METALLOGR-PR M, V41, P142

[4] Texture development and its effect on mechanical properties of an AZ61 Mg alloy fabricated by equal channel angular pressing [J].

Kim, WJ ;

Hong, SI ;

Kim, YS ;

Min, SH ;

Jeong, HT ;

Lee, JD .

ACTA MATERIALIA, 2003, 51 (11) :3293-3307

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

Liu, T ;

Zhang, W ;

Wu, SD ;

Jiang, CB ;

Li, SX ;

Xu, YB .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2003, 360 (1-2) :345-349

[6] Low temperature superplasticity of AZ91 magnesium alloy with non-equilibrium grain boundaries [J].

Mabuchi, M ;

Ameyama, K ;

Iwasaki, H ;

Higashi, K .

ACTA MATERIALIA, 1999, 47 (07) :2047-2057

[7] Developing superplasticity in a magnesium alloy through a combination of extrusion and ECAP [J].

Matsubara, K ;

Miyahara, Y ;

Horita, Z ;

Langdon, TG .

ACTA MATERIALIA, 2003, 51 (11) :3073-3084

[8] Magnesium - Properties - applications - potential [J].

Mordike, BL ;

Ebert, T .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2001, 302 (01) :37-45

[9] 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

[10]

POLMEAR IJ, 1994, MATER SCI TECH-LOND, V10, P1, DOI 10.1179/026708394790163401

← 1 2 →