CHEN Jian, HUANG Zhi-jie, LI Lu -ping, et al. Changes of Carbide in 30Cr2MoV Rotor Steel During Creep[J]. 2004, (6): 1-3.DOI:
30Cr2MoV转子钢蠕变过程中的碳化物变化
摘要
利用光学显微镜、透射电子显微镜及 X射线衍射仪分析了 30 Cr2 Mo V转子钢蠕变过程中碳化物的变化。研究结果表明
材料在蠕变过程中
固溶体基体中合金元素含量降低
碳化物中合金元素含量增加
并且碳化物不断聚集长大 ;晶内和晶界均发生碳化物的析出和结构转变
长时间蠕变后
30 Cr2 Mo V转子钢的碳化物以 M2 3 C6和 M6C型等碳化物为主。
Abstract
The changes of carbide in 30Cr2MoV rotor steel during creep are analyz ed by means of optical microscope
transmission electron microscope and X-ray d iffraction. The results show that the contents of alloy element in ferrite decre ase
the contents of alloy element in carbide increase
and the carbides assembl e increasingly in the course of creep. The precipitation and structure transform ation of carbide occur in crystal interior and boundary. The carbide in 30Cr2MoV rotor steel consists of mainly M23C6 and M6C after long term creep.