理化检验-物理分册2013，Vol.49Issue(8)：528-532,5.
金属粉化失效及其控制
Metal Dusting Failure and Its Control
梁春雷 1艾志斌 1李蓉蓉1
作者信息
- 1. 合肥通用机械研究院国家压力容器与管道安全工程技术研究中心,合肥230031
- 折叠
摘要
Abstract
Metal dusting failure is a disintegration of Fe-base and Ni-base alloys to a dust of graphite and metal particles,occurring in carburizing atmospheres with ac ＞1.An overview of the characteristics and mechanisms of metal dusting failure were undertaken.Influencing factors were expounded and corresponding protection measurements were propounded.The results show that metal dusting failure was mostly occurred at temperatures of 400～800 ℃,and there would no metal dusting failure happening below 400 ℃.The metal dusting failure resistance of Ni-base alloys was superior to that of Fe-base alloys.Protective Cr2O3 film would form with sufficient Cr content to enhance the metal dusting failure resistance.Si and Al elements were also beneficial to anti metal dusting failure.Surface hardening and grain fining could improve the metal dusting failure resistance too.关键词
金属粉化失效/含碳气氛/铁基合金/镍基合金Key words
metal dusting failure/ carburizing atmosphere/ Fe-base alloy/ Ni-base alloy分类
矿业与冶金引用本文复制引用
梁春雷,艾志斌,李蓉蓉..金属粉化失效及其控制[J].理化检验-物理分册,2013,49(8):528-532,5.
