Effect of rare earth additions on the critical resolved shear stresses of magnesium alloys

被引：84

作者：

Herrera-Solaz, V. ^{[1
]}

Hidalgo-Manrique, R. ^{[2
]}

Perez-Prado, M. T. ^{[2
]}

Letzig, D. ^{[3
]}

Llorca, J. ^{[1
,2
]}

Segurado, J. ^{[1
,2
]}

机构：

[1] Univ Politecn Madrid, Dept Mat Sci, ETS Ingenieros Caminos, E-28040 Madrid, Spain

[2] IMDEA Mat Inst, Madrid 2890, Spain

[3] Helmholtz Zentrum Geesthacht, Magnesium Innovat Ctr MagIC, D-21502 Geesthacht, Germany

来源：

MATERIALS LETTERS | 2014年 / 128卷

关键词：

Critical resolved shear stresses; Crystal plasticity; Rare earths; Magnesium alloys; Inverse optimization; MECHANICAL-BEHAVIOR; TEXTURE DEVELOPMENT; TENSILE DUCTILITY; BASAL SLIP; MG; DEFORMATION; ORIENTATION; SIMULATION; AZ31;

D O I：

10.1016/j.matlet.2014.04.144

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An inverse optimization strategy based on crystal plasticity finite element simulations of polycrystals was used to obtain the critical resolved shear stresses of two Mg-1%Mn alloys containing neodymium from macroscopic experimental data. It was found that, with respect to pure Mg, the presence of Nd increases the CRSSbasal, CRSStwinning, and the CRSSbasad/CRSStwinning ratio and decreases the CRSSnon-basal/CRSStwinning ratio. Additions of neodymium as high as 1 wt% result in similar CRSSs values for all deformation modes and, thus, in an isotropic yielding behavior. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：199 / 203

页数：5

共 25 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] SOLID SOLUTION STRENGTHENING OF MAGNESIUM SINGLE CRYSTALS .I. ALLOYING BEHAVIOUR IN BASAL SLIP [J].

AKHTAR, A ;

TEGHTSOONIAN, E .

ACTA METALLURGICA, 1969, 17 (11) :1339-+

[3] Texture Analysis with MTEX - Free and Open Source Software Toolbox [J].

Bachmann, F. ;

Hielscher, R. ;

Schaeben, H. .

TEXTURE AND ANISOTROPY OF POLYCRYSTALS III, 2010, 160 :63-+

[4] TENSILE-COMPRESSIVE YIELD ASYMMETRIES IN HIGH-STRENGTH WROUGHT MAGNESIUM ALLOYS [J].

BALL, EA ;

PRANGNELL, PB .

SCRIPTA METALLURGICA ET MATERIALIA, 1994, 31 (02) :111-116

[5] A Taylor model based description of the proof stress of magnesium AZ31 during hot working [J].

Barnett, MR .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2003, 34A (09) :1799-1806

[6] Enhancement of tensile ductility and stretch formability of magnesium by addition of 0.2 wt%(0.035 at%)Ce [J].

Chino, Yasumasa ;

Kado, Motohisa ;

Mabuchi, Mamoru .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 494 (1-2) :343-349

[7] DEFORMATION TWINNING [J].

CHRISTIAN, JW ;

MAHAJAN, S .

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

[8]

Dillamore I.L., 1965, Metall. Rev, V10, P271, DOI DOI 10.1179/MTLR.1965.10.1.271

[9] An inverse optimization strategy to determine single crystal mechanical behavior from polycrystal tests: Application to AZ31 Mg alloy [J].

Herrera-Solaz, V. ;

LLorca, J. ;

Dogan, E. ;

Karaman, I. ;

Segurado, J. .

INTERNATIONAL JOURNAL OF PLASTICITY, 2014, 57 :1-15

[10]

Hidalgo-Manrique P, 2014, METALL MA A IN PRESS

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