期刊
MATERIALS TRANSACTIONS
卷 50, 期 9, 页码 2259-2263出版社
JAPAN INST METALS
DOI: 10.2320/matertrans.M2009133
关键词
magnesium-lithium alloy; aging treatment; precipitation hardening; mechanical property
资金
- Feng Chia University, Taiwan [FCU-08627201]
In this study, an aging treatment was performed to investigate the microstructures and mechanical properties of Mg-10Li-0.5Zn (LZ101) alloy. Experimental results show that the LZ101 Mg-Li alloy exhibits a dual-phase microstructure of alpha (HCP) and beta (BCC) phases, and has a good ductility. The 723 K solid-solution treated LZ101 Mg-Li alloy exhibits a single beta structure and produces alpha precipitates after natural and artificial aging. The solid-solution treated specimen has lower mechanical strength and higher elongation than the as-extruded one. The aged specimens exhibit a typical behaviour of precipitation hardening. The maximum tensile strength can reach 188 MPa, 180 MPa and 173 MPa, corresponding to the natural aging of 345.6 ks, 423 K aging of 21.6 ks and 523 K aging of 10.8 ks. [doi:10.2320/matertrans.M2009133]
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