Scattering mechanical performances for brittle bulk metallic glasses
- Taiyuan Univ. of Technology, Taiyuan (China)
- Chinese Academy of Sciences (CAS), Beijing (China)
- Beihang Univ., Beijing (China)
Scattering mechanical performances of brittle La- and Mg-based BMGs are found in the present study. Upon dynamic loading, there exist largely scattered fracture strengths even if the strain rates are under the same order, and the BMG systems are the same. The negative strain rate dependence for La- and Mg-based BMGs is obtained, i.e., a decreased fracture strength is dominating from quasi-static to dynamic compression. At cryogenic temperatures, distinguishingly low fracture strengths are available for these two brittle BMGs, and decreased tolerance to accommodate strains makes BMGs more and more brittle. It is concluded that the scattering mechanical performances of brittle BMGs should be carefully evaluated before actual applications.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
- Sponsoring Organization:
- National Natural Science Foundation of China (NSFC); Technology Foundation for Selected Overseas Chinese Scholar; Ministry of Human Resources and Social Security of China; Program for the Outstanding Innovative Teams of Higher Learning Institutions of Shanxi; State Key Laboratory of Advanced Metals and Materials; Youth Science Foundation of Shanxi Province; Chinese Academy of Sciences (CAS); Program for New Century Excellent Talents in University (NCET)
- Grant/Contract Number:
- CRYO201306; 11390362; 51131002
- OSTI ID:
- 1327050
- Journal Information:
- AIP Advances, Vol. 4, Issue 11; ISSN 2158-3226
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- ENGLISH
Web of Science
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