摘要
对Ｔｉ（Ｃ，Ｎ）基金属陶瓷的热冲击性能进行了研究。结果表明，热冲击图（σｒｂ－ｔ图）存在一个突变点，即当ｔ＞４００℃时，σｒｂ急剧下降。扫描电镜观察表明，试样表面存在裂纹，在试样的亚表层下存在孔洞。从而探讨了微孔洞的形成机理。
The thermal shock properties of Ti(C,N) based cermets have been studied. The results have shown that there is a sudden changing point on the thermal shock diagram( σ rb - t diagram), i. e. when t is greater than 400 ℃, the remaining bend strength, σ rb , decreases rapidly. The SEM examination has denoted that there are cracks on the surface and voids below the surface of the specimens. The formation mechanism of microvoids has also been discussed.
出处
《中国有色金属学报》
EI
CAS
CSCD
北大核心
1997年第4期136-140,共5页
The Chinese Journal of Nonferrous Metals
关键词
Ti(C
N)基
金属陶瓷
热冲击性能
微孔洞
Ti(C,N) based cermets thermal shock properties formation mechanism microvoids
