终轧温度和轧后冷却对含钛微合金钢屈服强度的影响  

INFLUENCE OF ROLLING TECHNOLOGY ON YIELD STRENGTH OF MICROALLOYED STEEL WITH 0.064% Ti

作　　者：赵嘉蓉[1] 唐文胜[1] 杨节[1] 钟定忠[1] 吉玉[1] 

机构地区：[1]武汉冶金科技大学,武汉钢铁(集团)公司

出　　处：《钢铁》1996年第5期30-34,43,共6页Iron and Steel

摘　　要：用ＴＨＥＲＭＥＣＭＡＳＴＯＲ－７试验机模拟热连轧生产，研究终轧温度和轧后冷却工艺对含钛微合金钢性能的影响。用轧后立即快冷工艺时，快冷中止温度和卷取温度影响钢的沉淀强化组分，而对晶界强化组分无影响；终轧温度、轧后延迟快冷开始温度对钢的沉淀强化组分和晶界强化组分都有影响。给出了相应的强化组分定量估计公式。The hot-continuous rolling process has been simulated with THERMECMASTORZ type hot simulation experiment machine and the influence of finish rolling temperature and cooling technology after rolling on yield strength of steel with 0.079% C,0. 095% Si,0. 57% Mn,0. 012% P, 0. 020% S,0. 064% Ti and 0. 060% Cu has been researched. It has found that with the technology of immediate water cooling after rolling, the finish temperature of water cooling and coiling temperature have only the influence on the pecipitating strengthening component of steel. However the change of finish rolling temperature and the beginning temperature of late water cooling after rolling have the influence both on the pecipitating strengthening component and on the grain boundary strengthening component. The corresponding quantitative estimating formula has been put forward.

关 键 词：钛 微合金钢 强化机制 热轧 屈服强度 

分 类 号：TG335.85[金属学及工艺—金属压力加工]