Ti-IF钢铁素体区热变形行为研究和Zener-Hollomen参数方程的建立  

Ferritic hot deformation behavior and expression of Zener Hollomen parameter of a Ti-IF steel

作　　者：王昭东[1] 何晓明[2] 赵昆[2] 张丕军[2] 李自刚[2] 刘相华[1] 王国栋[1] 

机构地区：[1]东北大学轧制技术及连轧自动化国家重点实验室,辽宁沈阳110006 [2]宝山钢铁集团公司,上海200000

出　　处：《材料科学与工艺》2000年第4期6-10,共5页Materials Science and Technology

基　　金：国家重大基础研究项目! (G19980 6 15 0 9)

摘　　要：利用单道次压缩变形 ,研究了变形温度、变形速率和变形程度对一种Ti -IF钢的奥氏体区、铁素体区和两相区的热变形行为的影响 .在奥氏体区和铁素体区变形时 ,随变形温度的降低流变应力增加 ,而在两相区变形时 ,随变形温度的降低流变应力降低 .Ti-IF钢的铁素体动态再结晶受变形温度的影响最大 ,在铁素体变形高温区可以发生动态再结晶 ,铁素体区变形高温区域的变形抗力显著降低 .根据流变应力曲线 ,确定了Ti-IF钢ZPresents the investigation of deformation temperature, strain rates and strain on the deformation behavior of a Ti-IF steel using single pass compressing test in Gleeble thermal simulator and the increase of flow stress with the decrease of deformation temperature in austenite region and ferrite region, and its decrease with the increase of deformation temperature in γ→α region and concludes that the ferritic dynamic recrystallization was most influenced by deformation temperature and in the high ferritic deformation temperature region, dynamic recrystallization is more easily happened and flow stress was remarkable inclined.

关 键 词：TI-IF钢 铁素体 Z-Hollomen参数 热变形 热轧 

分 类 号：TG335.11[金属学及工艺—金属压力加工]