罩式退火工艺对Ti-IF钢组织与性能的影响  

Effect of batch type annealing process on microstructure and properties of Ti-IF steel

作　　者：郑跃强[1] 唐兴昌[1] 

机构地区：[1]酒泉钢铁(集团)有限责任公司碳钢薄板厂,甘肃嘉峪关735100

出　　处：《中国冶金》2015年第9期22-26,共5页China Metallurgy

摘　　要：在IF钢的生产过程中,退火是非常关键的工艺环节。针对酒钢CSP生产的Ti-IF钢进行研究,分析了在罩式退火工艺条件下,罩式退火工艺对Ti-IF钢组织与性能的影响。结果表明:退火温度从680℃上升到750℃保温2h,试样抗拉强度从284下降到268MPa,屈服强度从114下降到96MPa,屈强比从0.40降低到0.36,伸长率从44.3%提高到47%,塑性应变比r90值从2.22升高到2.60。Annealing is the key limit in the productive process of IF steel. Focusing on the TI-IF steel produced by CSP process in JiuSteel, the effect of batch type annealing process on microstructure and properties of Ti-IF steel is investigated. The results indicate that when the annealing temperature increases from 680 ℃ to 750 ℃ within 2 h, tensile strength reduces from 284 to 268 MPa, yield strength reduces from 114 MPa to 96 MPa , yield ratio decreases from 0. 40 to 0. 36, elongation increases from 44.25% to 47% and r90 increases from 2.22 to 2.60.

关 键 词：退火 TI-IF钢 组织性能 

分 类 号：TG161[金属学及工艺—热处理] TG142.1[金属学及工艺—金属学]