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Metallurgical and Materials Transactions A
Published in: Metallurgical and Materials Transactions A 4/2020

10-02-2020 | Communication

Extra Strain Hardening in High Pressure Die Casting Mg-Al-RE Alloy

Authors: Jie Wei, Qudong Wang, Dongdi Yin, Li Zhang, Hao Zhou, Bing Ye, Haiyan Jiang, Wenjiang Ding

Published in: Metallurgical and Materials Transactions A | Issue 4/2020

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Abstract

High pressure die casting Mg-Al-RE alloy has an intrinsic and macroscopic gradient structure regarding the grain size and the area fraction of second phase along the depth direction. Such gradient structure exhibits incompatible but continuous mechanical properties in regions of different depth from surface during uniaxial tension. An extra strain hardening and a higher strength are thus produced. The unique mechanical behaviors originate from the generation and accumulation of geometrically necessary dislocations promoted by the strain gradient.
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Metadata
Title
Extra Strain Hardening in High Pressure Die Casting Mg-Al-RE Alloy
Authors
Jie Wei
Qudong Wang
Dongdi Yin
Li Zhang
Hao Zhou
Bing Ye
Haiyan Jiang
Wenjiang Ding
Publication date
10-02-2020
Publisher
Springer US
Published in
Metallurgical and Materials Transactions A / Issue 4/2020
Print ISSN: 1073-5623
Electronic ISSN: 1543-1940
DOI
https://doi.org/10.1007/s11661-020-05656-w

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