一种超高强度不锈齿轮钢强化相研究  

Study on the strengthening phase in a ultra-high strength stainless gear steel

作　　者：赵振业[1] 李春志[1] 李志[1] 刘天琦[1] 支敏学[1] 朱杰远[1] 孙继光[2] 

机构地区：[1]北京航空材料研究院,北京100095 [2]北京有色金属研究总院,北京100088

出　　处：《航空材料学报》2003年第1期1-6,共6页Journal of Aeronautical Materials

摘　　要：用透射电子显微分析方法研究了一种Cr-Co-Mo超高强度不锈齿轮(轴承)钢中的强化相,结果证明,钢回火时与M体共格沉淀析出一种密排六方结构Laves(Fe2Mo型)强化相,并和M2C碳化物一起成为二次硬化的原因。The strengthening phases in a ultrahigh strength stainless gear(bearing) steel have been investigated by TEM electronic micrographs and diffraction techniques.The results show that two types of hcp phases:Laves(Fe2Mo type) and M2C have been precipited in coherence with martensitic matrix during tempering and both of them may be ascribed to the existence of secondary hardening phenomenon in the steel.

关 键 词：LAVES相 电子衍射 二次硬化 超高强度不锈齿轮钢 强化相 

分 类 号：TG142.1[一般工业技术—材料科学与工程]