摘要
研究了氢化处理对Mg-Li-Zn-Y-Zr-LPC合金显微组织和力学性能的影响规律,结果表明:铸态Mg-8.16%Li-4.10%Zn-2.86%Y-0.59%Zr-2.14%LPC合金主要由Li、Zn和RE在Mg中的固溶体和Mg-Li-Zn-RE块状化合物共同组成。氢化处理可以明显提高铸态Mg-Li-Zn-Y-Zr-LPC合金的力学性能。氢化过程中,氢会与Mg-Li-Zn-Y-Zr-LPC合金中稀土反应生成黑色小颗粒状化合物。另外,选用480℃×48h可以彻底氢化透试样(Φ12mm),取得较好的氢化效果。
Effects of the Hydrogenating treatment on microstructure and tensile strength of Mg-Li- Zn-Y-Zr-LPC alloy were studied. The results indicate that Mg-8.16%Li-4.10%Zn-2.86%Y-0.59%Zr-2.14%LPC alloy is composed of the solid solution of Li, Zn and RE in Mg and the compound of Mg-Li-Zn-RE. The hydrogenating treatment can enhance the mechanical properties of Mg-Li-Zn-Y-Zr-LPC alloys in evidence. And during the progress of hydrogenating treatment, the hydrogen responded with RE in the Mg-Li-Zn-Y-Zr-LPC and produced the black and little compounds. Besides, the optimum condition of the hydrogenating treatment is 480℃×48 h.
出处
《铸造》
EI
CAS
CSCD
北大核心
2006年第5期505-508,共4页
Foundry
关键词
铸造镁锂合金
氢化处理
显微组织
抗拉强度
硬度
cast Mg-Li alloy
hydrogenating treatment
microstructure
tensile strength
hardness
