International Journal of Extreme Manufacturing, Volume. 1, Issue 2, 22003(2019)

Material embrittlement in high strain-rate loading

Xiuxuan Yang1、* and Bi Zhang2,3
Author Affiliations
  • 1Dalian University of Technology, Dalian, People’s Republic of China
  • 2The Southern University of Science and Technology, Shenzhen, People’s Republic of China
  • 3The University of Connecticut, Storrs, CT, United States of America
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    Material embrittlement is often encountered in machining, heat treatment, hydrogen and lowtemperature conditions among which machining is strain-rate related. More strain-rate evoked embrittlement is expected in material loading processes, such as in high-speed machining and projectile penetration. In order to understand the fundamental mechanisms of the strain-rate evoked material embrittlement, this study is concerned with the material responses to loading at high strain-rates. It then explores the strain-rate evoked material embrittlement and fragmentation during high strain-rate loading processes and evaluates various empirical and physical models from different researchers for the assessment of the material embrittlement. The study proposes strain-rate sensitivity for the characterization of material embrittlement and the concept of the pseudo embrittlement for material responses to very high strain-rates. A discussion section is arranged to explore the underlying mechanisms of the strain-rate evoked material embrittlement and fragmentation based on dislocation kinetics.

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    Xiuxuan Yang, Bi Zhang. Material embrittlement in high strain-rate loading[J]. International Journal of Extreme Manufacturing, 2019, 1(2): 22003

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    Paper Information

    Category: Topical Review

    Received: Apr. 1, 2019

    Accepted: --

    Published Online: Jun. 4, 2020

    The Author Email: Yang Xiuxuan (yangxiuxuan@mail.dlut.edu.cn)

    DOI:10.1088/2631-7990/ab263f

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