摘要
采用综合分析方法研究了５Ｃｒ２１Ｍｎ９Ｎｉ４Ｎ气阀钢中Ｍ７Ｃ３相的形貌特征及化学组成，并对钢中钙含量与Ｍ７Ｃ３相及铸、锻件热裂的关系进行了探讨，从而提出了消除热裂纹的有效方法。
The morphology and chemical composition of M 7C 3 phase in 5Cr21Mn9Ni4N steel are studied by synthetical methods. The relations between the hot cracking in the casting or forging and calcium bearing and M 7C 3 phase of the steel are discussed. Some useful methods for eliminating the hot cracking are proposed.
出处
《内燃机学报》
EI
CAS
CSCD
北大核心
1998年第1期118-125,共8页
Transactions of Csice
关键词
内燃机
气阀钢
M7C3相
热裂纹
Internal combustion engine, Valve steel, M 7C 3 phase, Hot crack
