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Metallurgical and Materials Transactions A
Published in: Metallurgical and Materials Transactions A 12/2013

01-12-2013 | Communication

On the Phenomenon of Stress Drop During Hot Deformation of ZrTiAlV Alloy

Authors: Yuanbiao Tan, Wenchang Liu, Hui Yuan, Riping Liu, Xiangyi Zhang

Published in: Metallurgical and Materials Transactions A | Issue 12/2013

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Abstract

Hot deformation behaviors of 47Zr-45Ti-5Al-3V alloys with different grain sizes were investigated by compression tests. The flow curves exhibited a pronounced stress drop at the very beginning of deformation. The magnitude of the stress drop increased with the decreasing deformation temperature and the increasing strain rate. The sudden stress drop may be associated with the disappearance of mobile dislocations in the grain boundaries. Larger initial grain size increased the flow stress, promoted the stress drop, and enhanced the activation energy of deformation.
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Metadata
Title
On the Phenomenon of Stress Drop During Hot Deformation of ZrTiAlV Alloy
Authors
Yuanbiao Tan
Wenchang Liu
Hui Yuan
Riping Liu
Xiangyi Zhang
Publication date
01-12-2013
Publisher
Springer US
Published in
Metallurgical and Materials Transactions A / Issue 12/2013
Print ISSN: 1073-5623
Electronic ISSN: 1543-1940
DOI
https://doi.org/10.1007/s11661-013-2018-y

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