Origin of high tension-compression yield asymmetry in as-extruded pure zinc
Origin of high tension-compression yield asymmetry in as-extruded pure zinc
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DOI：
10.1016/j.scriptamat.2021.113922
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发表时间：
2021-07
影响因子：
6
通讯作者：
Chun Chen;Hua Huang;Jialin Niu;J. Nie;G. Yuan
中科院分区：
文献类型：
--
作者：
Chun Chen;Hua Huang;Jialin Niu;J. Nie;G. Yuan
Zinc and its alloys have received increasing attention due to their potential to be applied as biodegradable implants. However, the distinct tension-compression yield asymmetry of zinc and its alloys after plastic forming is undesirable. Here we identify the strong tension-compression yield asymmetry in as-extruded pure zinc and reveal that higher {10 1¯ 2}< 1¯ 011> twinning activity under tension is the underlying reason. Based on the finding, weakening texture and refining grains are put forward as effective strategies to reduce the tension-compression yield asymmetry.
