Control of Core Segregation and Size of Carbides in High Carbon Bearing Steel GCr15

摘要：

　　Core segregation is one of the main issues in the production of high carbon bearing steel,as its effects–primary carbides,carbide streaks and carbide networks–can compromise the bearing performance in terms of contact fatigue resistance.In order to minimize the core segregation,by means of the optimization of continuous casting parameters and secondary electromagnetic stirrer(S-EMS),a solidification model developed at Rina Consulting–CSM has been utilized.To make the reheating cycle more effective,the bloom temperature evolution has been studied by means of a thermal model of reheating cycle based on FE technique.Bloom sections 300mm×360mm of hardening bearing steel 100Cr6(GCr15),cast and hot rolled at Shigang steelmaking plant in Shijiazhuang,have been taken into consideration.The results show that it is possible to improve significantly the product quality.

作者: CRISTALLINI Alessandro GUARNASCHELLI Claudio DIONISI VICI Filippo MILONE Massimo LIU Yong XI Junliang SUN Xiaoming YANG Fenggong LIU Jianpei

作者单位: Rina Consulting-Centro Sviluppo Materiali,Rome,Italy Shijiazhuang Iron & Steel Co.,Shijiazhuang,Hebei,China

会议类型: 国际会议

会议名称: STEELSIM2017(第七届冶金过程及钢铁材料模拟及仿真国际会议)

会议地点: 青岛

会议语种:英文

页码: 379-382

在线出版日期: 2017-08-16（万方平台首次上网日期，不代表论文的发表时间）