Sn、Ca含量对挤压铸造Mg-Sn-Ca合金组织和性能的影响
Effects of Sn,Ca Addition on Microstructure and Properties of Squeezing Casting Mg-Sn-Ca Alloy
秦建 1赵第甲 1陈露 1李建宇 1潘宇 1吴树森 1郭威 1吕书林1
作者信息
- 1. 华中科技大学材料成形与模具技术全国重点实验室,武汉 430074
- 折叠
摘要
研究了Sn和Ca含量对挤压铸造Mg-Sn-Ca合金组织和力学性能的影响.结果表明,随着Sn含量上升,Mg-Sn合金的晶粒细化,Mg2Sn相逐渐增多,合金力学性能升高,当Sn含量为5%时性能理想.当Ca含量不超过1%时,随着Ca含量上升,Mg-Sn-Ca合金晶粒明显细化并形成CaMgSn相,合金力学性能逐渐提高;当Ca含量超过1%时,合金中第二相粗化并发生团聚,导致合金性能降低.
Abstract
The effects of Sn and Ca content on microstructure and mechanical properties of Mg-Sn alloy by squeezing casting were investigated.The results indicate that with the increase of Sn content,the grain of Mg-Sn alloy is refined,and the amounts of Mg2Sn phase are gradually increased,so the mechanical properties of the alloy are improved,and the performance reaches desirable when the Sn content is 5%.When Ca content is below 1%,with the increase of Ca content,the grains of Mg-Sn-Ca alloy are significantly refined and Ca-Mg-Sn phase can be generated,so the mechanical properties of the alloy are gradually improved.When the Ca content is more than 1%,the second phase is coarsened and agglomerated in the alloy,resulting in a decrease in properties of the alloy.
关键词
镁合金/挤压铸造/微观组织/力学性能Key words
Magnesium Alloy/Squeezing Casting/Microstructure/Mechanical Properties引用本文复制引用
基金项目
国家自然科学基金资助项目(52175321)
出版年
2024
NETL
NSTL
维普
万方数据