Ti-IF钢不同退火温度析出行为与织构研究  

Study on Precipitation Behavior and Texture at Different Annealing Temperatures for Ti-IF Steel

作　　者：张晓燕[1] 冯岩青[2] 

机构地区：[1]内蒙古包钢钢联股份有限公司薄板坯连铸连轧厂,内蒙古包头014010 [2]内蒙古包钢钢联股份有限公司技术中心,内蒙古包头014010

出　　处：《包钢科技》2016年第4期45-47,91,共4页Science & Technology of Baotou Steel

摘　　要：研究了Ti-IF无间隙原子钢热轧、冷轧、退火(700、800℃)过程的析出行为与织构。该钢在700℃退火过程中形成的Fe Ti P析出颗粒降低了{111}织构强度,导致r值降低;而800℃退火过程中形成的析出颗粒提高{111}织构强度,强的{111}织构强度增加r值。700℃退火析出物主要为Fe Ti P,800℃退火析出物主要为Ti4C2S2;由于形成Ti4C2S2析出物,使C在再结晶退火过程中很容易从固溶体中析出而形成{111}织构,促使800℃退火时获得良好的成型性。In the paper,the precipitation behavior and texture for Ti interstitial free （Ti -IF）steel in processes of hot rolling,cold rolling and annealing（700 ℃ and 800 ℃ ）are studied. The FeTiP precipitates formed in 700 ℃ annealing de- crease { 111 } texture intensity so that r values are decreased, while those formed in 800 ℃ annealing increase { 111 } tex- ture intensity so that r values are increased. The annealing precipitate at 700 ℃ is mainly FeTiP and that at 800 ℃ is main- ly Ti4C2S2 so that C is easily separated out from solid solution in recrystallization annealing to form { 111 } texture, which could urge good formability in 800 ℃ annealing.

关 键 词：Ti—IF无间隙原子钢 析出物 织构 热轧 退火 

分 类 号：TG156.2[金属学及工艺—热处理]