Material embrittlement in high strain-rate loading

Yang，Xiuxuan1; Zhang，Bi2,3

2019-06-01

10.1088/2631-7990/ab263f

International Journal of Extreme Manufacturing   Impact Factor & Quartile

2631-8644

2631-7990

Material embrittlement is often encountered in machining, heat treatment, hydrogen and low-temperature 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.

Dislocation Embrittlement Strain rate Strain-rate sensitivity

SCI

English

Corresponding

National Natural Science Foundation of China[51575084];Shenzhen Peacock Plan[KQJSCX20180322152221965];

WOS:000674685600003

2-s2.0-85076209793

Scopus

1.Dalian University of Technology,Dalian,China
2.Southern University of Science and Technology,Shenzhen,China
3.University of Connecticut,Storrs,United States

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

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

Yang，Xiuxuan,et al."Material embrittlement in high strain-rate loading".International Journal of Extreme Manufacturing 1.2(2019).