期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 735, 期 -, 页码 2625-2633出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2017.12.025
关键词
Mg-Li alloy; Mechanical properties; Work-hardening; Tension-compression yield asymmetry
资金
- NSFC [51371062, U1460102]
- NSFHLJ [JC2017012]
- Scientific Research Foundation for the Returned Overseas Chinese Scholars (Heilongjiang Province)
- Fundamental Research Funds for the Central Universities [HEUCFJ171005, HEUCFJ171001, HEUCFP201703]
- U.S. Department of Energy, Office of Sciences, Basic Energy Science, Materials Science and Engineering Division
- Department of Energy (DOE), Office of Fossil Energy, National Energy Technology Laboratory [DE-FE-0008855, DE-FE-0024054, DE-FE-0011194]
- U.S. Army Research Office [W911NF-13-1-0438]
- Department of Energy, Office of Sciences, Basic Energy Sciences, Materials Science and Engineering Division
- National Science Foundation [CMMI-1100080, DMR-1611180]
Limitations of strength and formability are the major obstacles to the industrial application of magnesium alloys. Here, we demonstrate, by producing the duplex phases and fine intermetallic particles in composition-optimized superlight Mg-Li-Al alloys, a unique approach to simultaneously improve the comprehensive mechanical properties (a strength-ductility balance). The phase components and microstructures, including the size, morphology, and distribution of precipitated-intermetallic particles can be optimized by tuning the Li content, which strongly influences the work-hardening behavior and tension-compression yield asymmetry. (c) 2017 Elsevier B.V. All rights reserved.
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