Tempering Behavior of M50 Steel with Different Austenite Proportion Induced by High Current Pulsed Electron Beam
M50 steel was irradiated by high current pulsed electron beam (HCPEB) with different pulses. The subsequent tempering was carried out between 500 and 625 °C. Microstructure evolution was analyzed by scanning electron microscopy and X-ray diffraction. It is found that the HCPEB treatment could constrain martainsite transformation in the surface layer of the samples. Tempered behavior of HCPEB remelted layer strongly depends on the proportion of retained austenite. Austenite saturated more carbon and metallic elements depict higher tempering stability. During tempered process, carbides precipitates among the grain and phase boundaries. The decreased solution of the elements promotes the retained austenite into martensite.
electron beam irradiation M50 steel tempering microstructure
Xu Fangjun Gu Le Zhao Kangling Su Junping Tang Guangze Ma Xinxin G.E.Ozure
State Key Laboratory of Advanced Welding and Joining, Harbin 150001, China Harbin Institute of Techn Harbin Institute of Technology, Harbin 150001, China Harbin Bearing manufacturing Co. Ltd, Harbin 150001, China State Key Laboratory of Advanced Welding and Joining, Harbin 150001, China Institute of High Current Electronics, 4, Academichesky Av., Tomsk 634055, Russia
国际会议
西安
英文
475-477
2011-05-11（万方平台首次上网日期，不代表论文的发表时间）