Improvement of mechanical behaviors of a superlight Mg-Li base alloy by duplex phases and fine precipitates

Zou, Yun; Zhang, Lehao; Li, Yang; Wang, Hongtao; Liu, Jiabin; Liaw, Peter K.; Bei, Hongbin; Zhang, Zhongwu

doi:10.1016/j.jallcom.2017.12.025

Title: Improvement of mechanical behaviors of a superlight Mg-Li base alloy by duplex phases and fine precipitates

Journal Article · Wed Dec 06 00:00:00 EST 2017 · Journal of Alloys and Compounds

DOI:https://doi.org/10.1016/j.jallcom.2017.12.025· OSTI ID:1415908

Zou, Yun ^[1]; Zhang, Lehao ^[2]; Li, Yang ^[3]; Wang, Hongtao ^[2]; Liu, Jiabin ^[2]; Liaw, Peter K. ^[4];

^[5];

^[6]

Harbin Engineering Univ., Harbin (People's Republic of China); Zhengzhou Univ., Zhengzhou (People's Republic of China)
Zhejiang Univ., Hangzhou (People's Republic of China)
Zhengzhou Univ., Zhengzhou (People's Republic of China)
Univ. of Tennessee, Knoxville, TN (United States)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Harbin Engineering Univ., Harbin (People's Republic of China)

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). In conclusion, 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.

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Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Fossil Energy and Carbon Management (FECM)

Grant/Contract Number:: AC05-00OR22725; FE-0008855; FE-0024054; FE-0011194

OSTI ID:: 1415908

Alternate ID(s):: OSTI ID: 1496348

Journal Information:: Journal of Alloys and Compounds, Vol. 735, Issue C; ISSN 0925-8388

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

Citation Metrics:

Cited by: 67 works

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