摘要
通过高温拉伸试验,研究稀土元素对HPb60-2合金高温性能的影响。结果表明:在HPb60-2合金中添加微量稀土元素,可以显著提高该合金的高温延伸率,最大流动应力略有增加。此外,文中还就稀土元素的作用机理进行了探讨。
The effect of rare earth elements on the hot plasticity of HPb 60-2 alloy hasbeen investigated,by using high temperature tensile test.It is showed that a small ammount ofcerium or Mischmetal can greatly increase the hot ductility of HPb 60-2 alloy.At the same time,the maximum flow stress of alloy could be slightly increased.On the basis of the present experiment,the mechanism which rare earth elements improve the hot ductility is also discussed.
出处
《机械工程材料》
CAS
CSCD
1989年第4期14-16,62,共4页
Materials For Mechanical Engineering
