Superplasticity of Mg-Zn-Y alloy containing quasicrystal phase processed by equal channel angular pressing

M. Y. Zheng; S. W. Xu; K. Wu; S. Kamado; Y. Kojima

doi:10.1016/j.matlet.2007.02.013

Superplasticity of Mg-Zn-Y alloy containing quasicrystal phase processed by equal channel angular pressing

M. Y. Zheng^*
, S. W. Xu
, K. Wu
, S. Kamado
, Y. Kojima

^*Corresponding author for this work

Harbin Institute of Technology
Nagaoka University of Technology

Research output: Contribution to journal › Article › peer-review

59 Scopus citations

Abstract

Equal channel angular pressing (ECAP) has been conducted on as-cast Mg-4.3 wt.%Zn-0.7 wt.%Y Mg alloy containing quasicrystal phase at a temperature of 623 K. After 8 ECAP passes, the grain size of the as-cast alloy is decreased from ∼ 120 to ∼ 3.5 μm, and the coarse eutectic quasicrystal phases are broken and dispersed in the alloy. Tensile testing has been performed on the ECAPed Mg-Zn-Y alloy at temperatures of 523 K and 623 K with initial strain rates from 1.5 × 10^{- 3} to 1.5 × 10^{- 4} s^{- 1}. The ECAPed alloy exhibits a maximum elongation of about 600% when testing at 623 K using an initial strain rate of 1.5 × 10^{- 4} s^{- 1}. Grain boundary sliding is considered to be the dominant deformation mechanism of the Mg-Zn-Y alloy in the temperature and strain-rate range investigated.

Original language	English
Pages (from-to)	4406-4408
Number of pages	3
Journal	Materials Letters
Volume	61
Issue number	22
DOIs	https://doi.org/10.1016/j.matlet.2007.02.013
State	Published - Sep 2007
Externally published	Yes

Keywords

Equal channel angular pressing
Magnesium alloy
Mechanical properties
Microstructure
Quasicrystal
Superplasticity

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10.1016/j.matlet.2007.02.013

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@article{0dc6e9840e4c48e0801dd11d78f99756,

title = "Superplasticity of Mg-Zn-Y alloy containing quasicrystal phase processed by equal channel angular pressing",

abstract = "Equal channel angular pressing (ECAP) has been conducted on as-cast Mg-4.3 wt.\%Zn-0.7 wt.\%Y Mg alloy containing quasicrystal phase at a temperature of 623 K. After 8 ECAP passes, the grain size of the as-cast alloy is decreased from ∼ 120 to ∼ 3.5 μm, and the coarse eutectic quasicrystal phases are broken and dispersed in the alloy. Tensile testing has been performed on the ECAPed Mg-Zn-Y alloy at temperatures of 523 K and 623 K with initial strain rates from 1.5 × 10- 3 to 1.5 × 10- 4 s- 1. The ECAPed alloy exhibits a maximum elongation of about 600\% when testing at 623 K using an initial strain rate of 1.5 × 10- 4 s- 1. Grain boundary sliding is considered to be the dominant deformation mechanism of the Mg-Zn-Y alloy in the temperature and strain-rate range investigated.",

keywords = "Equal channel angular pressing, Magnesium alloy, Mechanical properties, Microstructure, Quasicrystal, Superplasticity",

author = "Zheng, \{M. Y.\} and Xu, \{S. W.\} and K. Wu and S. Kamado and Y. Kojima",

year = "2007",

month = sep,

doi = "10.1016/j.matlet.2007.02.013",

language = "英语",

volume = "61",

pages = "4406--4408",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier B.V.",

number = "22",

}

TY - JOUR

T1 - Superplasticity of Mg-Zn-Y alloy containing quasicrystal phase processed by equal channel angular pressing

AU - Zheng, M. Y.

AU - Xu, S. W.

AU - Wu, K.

AU - Kamado, S.

AU - Kojima, Y.

PY - 2007/9

Y1 - 2007/9

N2 - Equal channel angular pressing (ECAP) has been conducted on as-cast Mg-4.3 wt.%Zn-0.7 wt.%Y Mg alloy containing quasicrystal phase at a temperature of 623 K. After 8 ECAP passes, the grain size of the as-cast alloy is decreased from ∼ 120 to ∼ 3.5 μm, and the coarse eutectic quasicrystal phases are broken and dispersed in the alloy. Tensile testing has been performed on the ECAPed Mg-Zn-Y alloy at temperatures of 523 K and 623 K with initial strain rates from 1.5 × 10- 3 to 1.5 × 10- 4 s- 1. The ECAPed alloy exhibits a maximum elongation of about 600% when testing at 623 K using an initial strain rate of 1.5 × 10- 4 s- 1. Grain boundary sliding is considered to be the dominant deformation mechanism of the Mg-Zn-Y alloy in the temperature and strain-rate range investigated.

AB - Equal channel angular pressing (ECAP) has been conducted on as-cast Mg-4.3 wt.%Zn-0.7 wt.%Y Mg alloy containing quasicrystal phase at a temperature of 623 K. After 8 ECAP passes, the grain size of the as-cast alloy is decreased from ∼ 120 to ∼ 3.5 μm, and the coarse eutectic quasicrystal phases are broken and dispersed in the alloy. Tensile testing has been performed on the ECAPed Mg-Zn-Y alloy at temperatures of 523 K and 623 K with initial strain rates from 1.5 × 10- 3 to 1.5 × 10- 4 s- 1. The ECAPed alloy exhibits a maximum elongation of about 600% when testing at 623 K using an initial strain rate of 1.5 × 10- 4 s- 1. Grain boundary sliding is considered to be the dominant deformation mechanism of the Mg-Zn-Y alloy in the temperature and strain-rate range investigated.

KW - Equal channel angular pressing

KW - Magnesium alloy

KW - Mechanical properties

KW - Microstructure

KW - Quasicrystal

KW - Superplasticity

UR - https://www.scopus.com/pages/publications/34547665686

U2 - 10.1016/j.matlet.2007.02.013

DO - 10.1016/j.matlet.2007.02.013

M3 - 文章

AN - SCOPUS:34547665686

SN - 0167-577X

VL - 61

SP - 4406

EP - 4408

JO - Materials Letters

JF - Materials Letters

IS - 22

ER -

Superplasticity of Mg-Zn-Y alloy containing quasicrystal phase processed by equal channel angular pressing

Abstract

Keywords

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