合金工具钢SAE6150冷却转变组织研究  

Research on Cooling Transformation Microstructure of Alloy-tool Steel SAE6150

作　　者：曹理强 贺莹莹 麻晗 

机构地区：[1]江苏省(沙钢)钢铁研究院,江苏苏州215625

出　　处：《热加工工艺》2016年第18期191-194,200,共5页Hot Working Technology

摘　　要：对合金工具钢SAE6150的连续冷却转变曲线（CCT）和等温转变曲线（TTT）进行了测定,研究了过冷奥氏体转变过程及其转变组织的性能。结果表明,轧制在860～880℃吐丝后,控制相变温度在620～670℃和相变区间冷却速度小于0.75℃/s,盘条可获得均匀的索氏体组织和良好的性能。The CCT （Continuous cooling transformation） curve and TTT （Isothermal temperation transformation） curve of alloy-tool steel SAE6150 were measured. The over cooling austenite transformation process, and its transformation microstructure and properties were investigated. The results show that the homogeneous sorbite microstructure and good properties can be obtained at the spinning temperature of 860-880℃, during the cooling rate controlled below 0.75℃/s and the temperature of phase transformation controlled at 620-670℃ in rolling.

关 键 词：合金工具钢 热-力模拟 控制冷却 珠光体相变 

分 类 号：TG142.1[一般工业技术—材料科学与工程]