热处理对Mg-Gd-Y-Zr合金微观组织的影响
Effect of heat treatment on microstructure of Mg-Gd-Y-Zr alloy
王浩宇 1李海冉 2高永浩1
作者信息
- 1. 中南大学材料科学与工程学院,湖南长沙 410083
- 2. 北京遥感设备研究所,北京 100143
- 折叠
摘要
对Mg-Gd-Y-Zr系合金在350℃下进行高温退火,并利用光学显微镜、扫描电镜和X射线衍射手段对退火过程中的表面氧化行为进行了系统表征.结果表明,退火过程中合金发生了显著的变化,Gd和Y元素沿初始晶界和合金表面聚集;样品发生不均匀氧化,即初始晶界的氧化速度高于晶粒内部;氧化膜主要成分为(Gdx,Y2-x)O3.
Abstract
Mg-Gd-Y-Zr alloy was annealed at 350 ℃,and the surface oxidation behavior during the annealing process was systematically characterized using optical microscope,scanning electron microscope,and X-ray diffraction.The results show that significant changes occur in the alloy during the annealing process,with Gd and Y elements aggregating along the initial grain boundaries and alloy surface.The specimen undergoes uneven oxidation,where the oxidation rate at the initial grain boundary is higher than that inside the grain.The main component of the oxide film is(Gdx,Y2-x)O3.
关键词
Mg-Gd-Y-Zr合金/高温退火/(Gdx,Y2-x)O3氧化膜Key words
Mg-Gd-Y-Zr alloy/high temperature annealing/(Gdx,Y2-x)O3 oxide film引用本文复制引用
基金项目
中南大学研究生创新项目(2022XQLH044)
出版年
2024
NETL
NSTL
万方数据