The effect of grain refinement by warm equal channel angular extrusion on room temperature twinning in magnesium alloy ZK60

被引：65

作者：

Lapovok, R ^{[1
]}

Thomson, PF

Cottam, R

Estrin, Y

机构：

[1] Monash Univ, Sch Phys & Mat Engn, Clayton, Vic 3800, Australia

[2] Tech Univ Clausthal, IWW, D-38678 Clausthal Zellerfeld, Germany

来源：

JOURNAL OF MATERIALS SCIENCE | 2005年 / 40卷 / 07期

基金：

澳大利亚研究理事会;

关键词：

D O I：

10.1007/s10853-005-0672-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of the grain structure produced by warm equal channel angular extrusion (ECAE) on twinning under subsequent room temperature deformation of magnesium alloy ZK60 was investigated. It was shown that a bi-modal grain structure, characteristics of which are determined by the ECAE temperature and the number of passes, has a strong effect on the tendency to room temperature twinning. The highest density of twins generated during room temperature deformation was found in material pre-strained by ECAE at 300 degrees C that exhibited a uniform recrystallised grain structure with an average grain size large enough for twinning to occur. (C) 2005 Springer Science + Business Media, Inc.

引用

页码：1699 / 1708

页数：10

共 16 条

[1]

Agnew SR, 2002, ULTRAFINE GRAINED MATERIALS II, P643

[2] INFLUENCE OF PRE-STRAIN ON DEFORMATION TWINNING IN NIOBIUM SINGLE-CRYSTALS [J].

BOUCHER, NA ;

CHRISTIAN, JW .

ACTA METALLURGICA, 1972, 20 (04) :581-+

[3] DEFORMATION TWINNING [J].

CHRISTIAN, JW ;

MAHAJAN, S .

PROGRESS IN MATERIALS SCIENCE, 1995, 39 (1-2) :1-157

[4]

CHUVILDEEV VN, 2003, IN PRESS J METALS CO

[5] Texture evolution during equal channel angular extrusion Part I. Effect of route, number of passes and initial texture [J].

Ferrasse, S ;

Segal, VM ;

Kalidindi, SR ;

Alford, F .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2004, 368 (1-2) :28-40

[6]

Friedel J., 1964, DISLOCATIONS, P178

[7]

KOCKS UF, 1967, T METALL SOC AIME, V239, P1107

[8]

Mabuchi M, 2001, MATER SCI FORUM, V357-3, P327

[9] Constitutive description of dynamic deformation:: physically-based mechanisms [J].

Meyers, MA ;

Benson, DJ ;

Vöhringer, O ;

Kad, BK ;

Xue, Q ;

Fu, HH .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2002, 322 (1-2) :194-216

[10] The onset of twinning in metals:: A constitutive description [J].

Meyers, MA ;

Vöhringer, O ;

Lubarda, VA .

ACTA MATERIALIA, 2001, 49 (19) :4025-4039

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