Strengthening dual-phase Mg-Li alloy through precipitation control
Year: 2024
Type: article
Abstract: Inherent low strength is the major limitation of Mg-Li alloys. Through precise control of precipitates, the cast Mg-8Li-3Al-2Zn alloy obtained a high specific ultimate tensile strength of 213 kN·m·kg−1. Precipitates evolution during non-isothermal aging was investigated: strip-like Mg3(Al, Zn) in β-Li → globular Mg3(Al, Zn) in β-Li →Mg/Li(Al, Zn) core–shell and nanoscale rod-like Mg3(Al, Zn) in β-Li + Laves phase in α-Mg. The short-term high-temperature aging results in the precipitation of Laves phase in α-Mg and the formation of nanoscale rod-like Mg3(Al, Zn) and Mg/Li(Al, Zn) core–shell phase in β-Li, achieving synergistic strengthening of the dual matrix phases.
Source: Materials Research Letters
Authors: Yuchuan Huang, Fangzhou Qi, Jiawei Sun, Yangyang Xu, Youjie Guo, Jiaxin Yu, Lingfan Yi, Xinmiao Tao, Guohua Wu, Wencai Liu
Language: English
Subfield: Biomaterials
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,459
OpenAlex ID: W4403817159