P对含V高强ULC-BH钢再结晶{111}面织构的影响  

Effects of P on {111} plane texture in high strength V-bearing ULC-BH steels

作　　者：张喜亮[1] 刘涛[1] 张红娜[1] 岳万超 王佳佳[1] 杨吉[1] ZHANG Xi-liang;LIU Tao;ZHANG Hong-na;YUE Wan-chao;WANG Jia-jia;YANG Ji(Equipment Manufacturing College,Hebei University of Engineering,Handan 056038,Chin)

机构地区：[1]河北工程大学装备制造学院,河北邯郸056038

出　　处：《材料热处理学报》2017年第3期89-96,共8页Transactions of Materials and Heat Treatment

基　　金：国家自然科学基金(51501052);河北省自然科学基金(E2014402004)

摘　　要：借助电子背散射衍射(EBSD)技术、透射电镜(TEM)及俄歇(Auger)电子能谱分析新型添加V的ULC-BH钢再结晶退火过程中微观织构演变、析出行为及P晶界偏聚。结果表明:P提高ULC-BH钢{111}<112>织构强度,削弱{111}<110>织构强度,总体表现为P对γ纤维织构有利。P的添加推迟ULC-BH钢再结晶时间,在相同退火条件下,含磷ULC-BH钢晶粒尺寸要小于普通的ULC-BH钢。对于Ti含量较低的含V的ULC-BH钢,退火过程中析出物稀少且对再结晶织构的演变影响较小,P的晶界偏聚是影响再结晶织构的重要因素。The texture evolution,precipitation behavior,and grain boundary segregation of phosphorous of a V and Ti-added ultra-low carbon bake hardening(ULC-BH)steel during annealing process were investigated by means of electron back scattering diffraction technique,TEM and Auger electron spectroscopy.The results show that phosphorus in the ULC-BH steel is beneficial for the formation of{111}112 texture and detrimental for development of{111}110 texture.The existence of phosphorus in general can improve the strength ofγfiber texture of the ULC-BH steel.In addition,phosphorus addition can delay the recrystallization and refine the grain of the P-added ULC-BH steels after annealing.Furthermore,for the ULC-BH steel containing V with low content of Ti,the precipitation is rare and has little influence on the evolution of recrystallization texture,and the grain boundary segregation of P is an important factor to affect recrystallization texture of ULC-BH steel.

关 键 词：超低碳烘烤硬化钢 {111}面织构 晶界偏聚 析出相 磷 

分 类 号：TG142.7[一般工业技术—材料科学与工程]