EFFECT OF STRAIN RATE ON DYNAMIC RECRYSTALLIZATION IN A MAGNESIUM ALLOY UNDER COMPRESSION AT HIGH TEMPERATURE

被引：0

作者：

Ma, Q. ^{[1
]}

Li, B. ^{[1
]}

Oppedal, A. L. ^{[1
]}

Whittington, W. ^{[1
]}

Horstemeyer, S. J. ^{[1
]}

Marin, E. B. ^{[1
]}

El Kadiri, H. ^{[1
]}

Wang, P. T. ^{[1
]}

Horstemeyer, M. F. ^{[1
]}

机构：

[1] Mississippi State Univ, Ctr Adv Vehicular Syst, Starkville, MS 39759 USA

来源：

MAGNESIUM TECHNOLOGY 2012 | 2012年

关键词：

Magnesium; Texture; Twinning; Non-basal slip; Dynamic Recrystallization; DEFORMATION; BEHAVIOR; MG;

D O I：

暂无

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Interrupted uniaxial compression tests were performed on an extruded Mg-Al-Mn magnesium alloy (AM30) at 450 degrees C and various strain rates of 0.001 s(-1), 0.1 s(-1), 0.5 s(-1) and 0.8 s(-1). Texture and microstructure evolution were examined using electron back scattered diffraction (EBSD) and X-ray diffraction (XRD) techniques. Twinning was found to be ubiquitous at high temperature but provided that a highly enough strain rate was applied. The results show that the deformation microstructure evolves with strong dependence on the strain rate as twinning triggers and non-basal slips become harder. Schmid's factor and slip traces analyses elucidated the driving forces controlling dynamic recrystallization mechanisms and emphasized on the role played by extension twinning and non-basal slips.

引用

页码：307 / 310

页数：4

共 16 条

[1] Agnew SR, 2002, METALL MATER TRANS A, V33, P851, DOI 10.1007/s11661-002-1017-1
[2] Dynamic recrystallization during high temperature deformation of magnesium
Al-Samman, T.
Gottstein, G.
[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 490 (1-2): : 411 - 420
[3] Barnett M.R., 2001, Journal of Light Metals, V1, P167, DOI DOI 10.1016/S1471-5317(01)00010-4
[4] Microstructural development during hot working of Mg-3Al-1Zn
Beer, A. G.
Barnett, M. R.
[J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2007, 38A (08): : 1856 - 1867
[5] Temperature dependency of slip and twinning in plane strain compressed magnesium single crystals
Chapuis, Adrien
Driver, Julian H.
[J]. ACTA MATERIALIA, 2011, 59 (05) : 1986 - 1994
[6] Correlation of plastic deformation and dynamic recrystallization in magnesium alloy Zk60
Galiyev, A
Kaibyshev, R
Gottstein, G
[J]. ACTA MATERIALIA, 2001, 49 (07) : 1199 - 1207
[7] DYNAMIC RECRYSTALLIZATION AND THE DEVELOPMENT OF MICROSTRUCTURE DURING THE HIGH-TEMPERATURE DEFORMATION OF MAGNESIUM
ION, SE
HUMPHREYS, FJ
WHITE, SH
[J]. ACTA METALLURGICA, 1982, 30 (10): : 1909 - 1919
[8] High strain rate deformation behavior of an AZ91 magnesium alloy at elevated temperatures
Ishikawa, K
Watanabe, H
Mukai, T
[J]. MATERIALS LETTERS, 2005, 59 (12) : 1511 - 1515
[9] Modeling the temperature dependent effect of twinning on the behavior of magnesium alloy AZ31B sheet
Jain, A.
Agnew, S. R.
[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2007, 462 (1-2): : 29 - 36
[10] Kaibyshev RO, 2000, FIZ MET METALLOVED+, V89, P70

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