双级时效对Mg-13Gd-5Y-0.6Mn-0.5Ca挤压镁合金析出相和力学性能的影响
Effects of Two-stage Aging on the Precipitated Phases and Mechanical Properties of Mg-13Gd-5Y-0.6Mn-0.5Ca Extruded Magnesium Alloy
韦皓博 1陈洁仪 1吴宗钢 1阮世会 1李晏 1杨明波1
作者信息
- 1. 重庆理工大学材料科学与工程学院,重庆 400054
- 折叠
摘要
研究了双级时效对Mg-13Gd-5Y-0.6Mn-0.5Ca挤压镁合金平衡相析出和力学性能的影响.结果表明,双级时效和单级时效均可有效提升试验镁合金的室温力学性能,但前者对于试验镁合金挤压后力学性能的提升明显高于后者,伸长率从挤压态的1.8%提升到2.5%.双级时效进一步改善试验合金性能的机理为促进Mg5Gd平衡相的析出.
Abstract
The effects of two-stage aging on the precipitated equilibrium phases and properties of Mg-13Gd-5Y-0.6Mn-0.5Ca extruded magnesium alloy were investigated.The results reveal that two-stage aging and single-stage aging can effectively improve the room temperature tensile properties of tested magnesium alloy,however the effects of two-stage aging is superior to that of single-stage aging,and elongation is increased from 1.8%to 2.5%.The mecha-nism for further improvement of the tested alloy by two-stage aging is characterized by promoting the aging precipita-tion of Mg5Gd equilibrium phase.
关键词
镁合金/Mg-13Gd-5Y-0.6Mn/双级时效/伸长率Key words
Magnesium Alloy/Mg-13Gd-5Y-0.6Mn/Two-stage Aging/Elongation引用本文复制引用
基金项目
重庆市技术创新与应用发展专项(cstc2019jscxmbdxX0031)
重庆市技术创新与应用发展专项(cstc2020jscxmsxmX0215)
出版年
2024
NETL
NSTL
万方数据