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- Title
Effect of Double Aging on Precipitation Kinetics, Microstructure and Tensile Properties of as-ECAPed Mg-8Sn-6Zn-2Al Alloy.
- Authors
Cheng, Wei-li; Niu, Xiao-feng; Wang, Hong-xia; Wang, Li-fei; Guo, Chen; Bai, Yang
- Abstract
An icosahedral quasicrystal phase (I-phase)-containing Mg-8Sn-6Zn-2(wt.%)Al (TZA862) alloy was subjected to ECAP and subsequent double aging. Thereafter, the age-hardening microstructure and tensile properties of the as-ECAPed TZA862 alloy were investigated. The results indicated that the grain size, fraction and orientation of the precipitates as well as the texture were affected by the double-aging treatment, which contributed to the enhanced hardness and tensile strength. The hardening of the aged alloy was mainly ascribed to the nucleation of the precipitates on grain boundaries and the strengthening was mainly related to the Orowan mechanism.
- Subjects
ALLOYS; CRYSTAL grain boundaries; GRAIN size; MICROSTRUCTURE; DETERIORATION of materials; METEOROLOGICAL precipitation
- Publication
JOM: The Journal of The Minerals, Metals & Materials Society (TMS), 2019, Vol 71, Issue 7, p2187
- ISSN
1047-4838
- Publication type
Article
- DOI
10.1007/s11837-019-03407-w