CSP流程下退火加热制度对深冲板织构和性能的影响  

Effects of heating process on the textures and properties of deep drawing steel sheets produced by CSP process

作　　者：程晓杰[1] 刘雅政[1] 周乐育[1] 孙有博[1] 闫波[2] 

机构地区：[1]北京科技大学材料与科学工程学院,北京100083 [2]包头钢铁(集团)公司,包头014010

出　　处：《北京科技大学学报》2010年第12期1547-1551,共5页Journal of University of Science and Technology Beijing

摘　　要：以包钢CSP流程热轧板为基料的SPCD冷轧板为试验材料,采用单台阶和双台阶两种退火加热制度进行实验室试验,对比分析了不同规程下的再结晶织构、组织和性能特点.结果表明,双台阶退火工艺对应的γ织构、α织构上的{111}〈110〉成分均有所提高,但是双台阶工艺下的Δr值偏大.分析认为,双台阶和单台阶在回复阶段上有所不同,不利取向组分形核受到了抑制,最终导致有利织构含量上的差别.在双台阶工艺下,{110}〈110〉织构强度的提高导致Δr值偏大.With cold-rolled strips（SPCD）under Baotou CSP line as experimental materials,two batch annealing processes,double-step annealing and single-step annealing,were applied by laboratory experiments.The characters of textures,microstructures and properties were studied under different annealing processes.The results indicate that the double-step annealing process enhances the intensity of γ-fiber and the {111}〈110〉 of α-fiber,but the value of Δr increases,too.The difference of pre-recovery between the two annealing processes delays nucleation in the unfavorable regions,consequently leading to the difference of favorable textures.Upon the double-step annealing process,the high intensity of {110}〈110〉 results in the higher value of Δr.

关 键 词：钢板 退火工艺 预回复 织构 再结晶 

分 类 号：TG142.1[一般工业技术—材料科学与工程]