Hot deformation behaviors of WE71 alloy under plain strain compression at elevated temperature

Hot deformation behaviors of WE71 (Mg–7Y-1Nd-0.5Zr) alloy was investigated by plain strain compression tests conducted at temperatures ranging from 350 °C to 500 °C and strain rates varying from 0.01 s-1 to 10 s-1. Results show that the hot deformation of WE71 was accompanied by the precipitation of...

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Main Authors: Bangqi Yin, Xiangyi Xue, Bin Tang, Yi Wang, Hongchao Kou, Jinshan Li
Format: Article
Language:English
Published: Elsevier 2020-08-01
Series:Progress in Natural Science: Materials International
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1002007120304779
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spelling doaj-c538bc55879841c0b9a6d3c084bbad542020-11-25T03:43:51ZengElsevierProgress in Natural Science: Materials International1002-00712020-08-01304526532Hot deformation behaviors of WE71 alloy under plain strain compression at elevated temperatureBangqi Yin0Xiangyi Xue1Bin Tang2Yi Wang3Hongchao Kou4Jinshan Li5State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, 710072, ChinaCorresponding author. No. 127, Youyi Xilu, Xi'an, Shaanxi, 710072, China.; State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, 710072, ChinaState Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, 710072, ChinaState Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, 710072, ChinaState Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, 710072, ChinaState Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, 710072, ChinaHot deformation behaviors of WE71 (Mg–7Y-1Nd-0.5Zr) alloy was investigated by plain strain compression tests conducted at temperatures ranging from 350 °C to 500 °C and strain rates varying from 0.01 s-1 to 10 s-1. Results show that the hot deformation of WE71 was accompanied by the precipitation of rich Zr phase with granular shape and block-shaped phase rich in element Y. When deformed at low temperature and high strain rate, the softening behavior of the alloy was synergically determined by shear bands propagation, adiabatic heating, twinning formation and dynamic recrystallization (DRX). For the conditions of high temperature and high strain rate, DRX was the major softening mechanism while the formation and annihilation of extension twinning resulted in a special flow curve characteristic at the strain of around 0.3. According to the microstructural observations, it can be concluded that the irregular flow curves of WE71 alloy during plain strain compression process are mainly ascribed to shear bands propagation, adiabatic heating, twinning formation and DRX.http://www.sciencedirect.com/science/article/pii/S1002007120304779WE71 alloyHot deformation behaviorDynamic recrystallizationShear bandPlain strain compression
collection DOAJ
language English
format Article
sources DOAJ
author Bangqi Yin
Xiangyi Xue
Bin Tang
Yi Wang
Hongchao Kou
Jinshan Li
spellingShingle Bangqi Yin
Xiangyi Xue
Bin Tang
Yi Wang
Hongchao Kou
Jinshan Li
Hot deformation behaviors of WE71 alloy under plain strain compression at elevated temperature
Progress in Natural Science: Materials International
WE71 alloy
Hot deformation behavior
Dynamic recrystallization
Shear band
Plain strain compression
author_facet Bangqi Yin
Xiangyi Xue
Bin Tang
Yi Wang
Hongchao Kou
Jinshan Li
author_sort Bangqi Yin
title Hot deformation behaviors of WE71 alloy under plain strain compression at elevated temperature
title_short Hot deformation behaviors of WE71 alloy under plain strain compression at elevated temperature
title_full Hot deformation behaviors of WE71 alloy under plain strain compression at elevated temperature
title_fullStr Hot deformation behaviors of WE71 alloy under plain strain compression at elevated temperature
title_full_unstemmed Hot deformation behaviors of WE71 alloy under plain strain compression at elevated temperature
title_sort hot deformation behaviors of we71 alloy under plain strain compression at elevated temperature
publisher Elsevier
series Progress in Natural Science: Materials International
issn 1002-0071
publishDate 2020-08-01
description Hot deformation behaviors of WE71 (Mg–7Y-1Nd-0.5Zr) alloy was investigated by plain strain compression tests conducted at temperatures ranging from 350 °C to 500 °C and strain rates varying from 0.01 s-1 to 10 s-1. Results show that the hot deformation of WE71 was accompanied by the precipitation of rich Zr phase with granular shape and block-shaped phase rich in element Y. When deformed at low temperature and high strain rate, the softening behavior of the alloy was synergically determined by shear bands propagation, adiabatic heating, twinning formation and dynamic recrystallization (DRX). For the conditions of high temperature and high strain rate, DRX was the major softening mechanism while the formation and annihilation of extension twinning resulted in a special flow curve characteristic at the strain of around 0.3. According to the microstructural observations, it can be concluded that the irregular flow curves of WE71 alloy during plain strain compression process are mainly ascribed to shear bands propagation, adiabatic heating, twinning formation and DRX.
topic WE71 alloy
Hot deformation behavior
Dynamic recrystallization
Shear band
Plain strain compression
url http://www.sciencedirect.com/science/article/pii/S1002007120304779
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