Evolution of sub-micron grain size and weak texture in magnesium alloy Mg-3Al-0.4Mn by a modified multi-axial forging process

被引：99

作者：

Biswas, Somjeet ^{[1
]}

Suwas, Satyam ^{[1
]}

机构：

[1] Indian Inst Sci, Dept Mat Engn, Bangalore 560012, Karnataka, India

来源：

SCRIPTA MATERIALIA | 2012年 / 66卷 / 02期

关键词：

Severe plastic deformation (SPD); Multi-axial forging (MAF); Electron backscattering diffraction (EBSD); Magnesium alloy; Texture; CHANNEL-ANGULAR EXTRUSION; ROOM-TEMPERATURE; NONBASAL SLIP; AZ31; DEFORMATION; SUPERPLASTICITY; ANISOTROPY; DUCTILITY; BEHAVIOR; METALS;

D O I：

10.1016/j.scriptamat.2011.10.008

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This is the first successful attempt to produce simultaneously ultrafine grain size and weak texture in a single-phase magnesium alloy Mg-3Al-0.4Mn through an optimal choice of processing parameters in a modified multi-axial forging (MAF) process. An average grain size of similar to 0.4 mu m and a weak texture could be achieved. This has led to an increase in the strength as well as room-temperature ductility (55%). The plot of the yield loci shows a decrease in anisotropy after MAF. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：89 / 92

页数：4

共 33 条

[1] Plastic anisotropy and the role of non-basal slip in magnesium alloy AZ31B [J].

Agnew, SR ;

Duygulu, Ö .

INTERNATIONAL JOURNAL OF PLASTICITY, 2005, 21 (06) :1161-1193

[2] Room temperature formability of a magnesium AZ31 alloy: Examining the role of texture on the deformation mechanisms [J].

Al-Samman, T. ;

Gottstein, G. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 488 (1-2) :406-414

[3]

BISWAS S, 2010, THESIS INDIAN I SCI

[4] Room-temperature equal channel angular extrusion of pure magnesium [J].

Biswas, Somjeet ;

Dhinwal, Satyaveer Singh ;

Suwas, Satyam .

ACTA MATERIALIA, 2010, 58 (09) :3247-3261

[5] Press fonnability of a rolled AZ31 Mg alloy sheet with controlled texture [J].

Chino, Y ;

Lee, JS ;

Sassa, K ;

Kamiya, A ;

Mabuchi, M .

MATERIALS LETTERS, 2006, 60 (02) :173-176

[6] Influence of texture and grain size on work hardening and ductility in magnesium-based alloys processed by ECAP and rolling [J].

del Valle, J. A. ;

Carreno, F. ;

Ruano, O. A. .

ACTA MATERIALIA, 2006, 54 (16) :4247-4259

[7] Improvement of strength of magnesium alloy processed by equal channel angular extrusion [J].

Ding, S. X. ;

Lee, W. T. ;

Chang, C. P. ;

Chang, L. W. ;

Kao, P. W. .

SCRIPTA MATERIALIA, 2008, 59 (09) :1006-1009

[8] A study of through-thickness texture gradients in rolled sheets [J].

Engler, O ;

Huh, MY ;

Tomé, CN .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2000, 31 (09) :2299-2315

[9] Texture effects on plastic deformation of magnesium [J].

Gehrmann, R ;

Frommert, MM ;

Gottstein, G .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2005, 395 (1-2) :338-349

[10] Grain refinement under multi-axial forging in Fe-32%Ni alloy [J].

Han, Baojun ;

Xu, Zhou .

JOURNAL OF ALLOYS AND COMPOUNDS, 2008, 457 (1-2) :279-285

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