摘要
采用物理化学相分析、X射线衍射、金相检验和持久试验等分析方法研究了烟汽轮机叶片合金(GH864)在不同超温试验条件下显微组织中的碳化物含量与持久强度的关系。结果表明:随着GH864合金中碳化物含量的增加,尤其是M23C6量的增多,其持久强度下降,从而缩短了其剩余寿命。
Relationship between the carbide content in microstructure and the creep rupture strength of GH864 alloy was studied under different overheated condition by using physical and chemical analysis, X-ray diffraction, metallographic examination and creep rupture strength test. The result showed that with the carbide content increase, especially with M23 C6 content increase, the creep rupture strength and remaining life of GH864 alloy decreased.
出处
《理化检验（物理分册）》
CAS
2009年第7期393-396,401,共5页
Physical Testing and Chemical Analysis(Part A:Physical Testing)
关键词
GH864合金
超温
碳化物含量
持久强度
剩余寿命
GH864 alloy
overheated temperature
carbide content
creep rupture strength
remaining life
