The microstructure transformation of 10CrMo910 steel after running 147000h in high temperature

摘要：

　　Two specimens from original 10CrMo910 steel and the steel after running 147000h in high temperature were analyzed in this research by SEM,TEM,XRD and electron probe.The results show that after running 147000h in high temperature the 10CrMo910 steel has changed a lot:1) The dislocation and subgrain boundary in bainite decreased largely while that in massive ferrite almost disappeared.2) The strip-shape M3C carbides were nearly dissolved,the granular austenite was gradually transformed into martensite,the fine needle-shape Mo2C carbides coarsened,and granular carbides separated out in massive ferrite.3) There were large particles of M23C6 carbides in crystal boundary between bainite and ferrite,especially in the boundary of any three phases.And creep voids appeared.

关键词： 10CrMo910 steel precipitation microanalysis main steam pipe

作者: Zhiwu Wang Tao Song Wei Me Cheng Wan

作者单位: School of Power and Mechanical Engineering, Wuhan University, Wuhan, Hubei, 430072, China

会议类型: 国际会议

会议名称: the 2012 International Conference on Frontiers of Advanced Materials and Engineering Technology (2012年先进材料与工程技术国际会议(FAMET 2012))

会议地点: 厦门

会议语种:英文

页码: 501-507

在线出版日期: 2012-01-04（万方平台首次上网日期，不代表论文的发表时间）