403Nb叶片钢热压缩变形研究  

Investigation of Hot Reduction on 403Nb Blade Steel

作　　者：王立民[1] 刘宁[2] 刘正东[1] 杨钢[1] 张秀丽 

机构地区：[1]钢铁研究总院,北京100081 [2]济南钢铁集团有限公司,山东济南250000 [3]抚顺特殊钢股份有限公司,辽宁抚顺113001

出　　处：《钢铁》2010年第6期63-66,共4页Iron and Steel

基　　金：国家自然科学基金重点项目(50634030)

摘　　要：为403Nb叶片钢实现热连轧组织性能预报系统提供数据,采用Gleeble-3500热模拟试验机,对403Nb进行了热压缩试验。根据试验数据通过计算得出了403Nb热压缩的Z参数和流变应力方程;对变形后的组织分析表明：403Nb动态再结晶以晶界弓出机制形核,在变形组织中有少量宽度为30~100 nm的细小孪晶,基体中的NbC对位错有钉扎作用,提高了其热变形激活能。In order to provide datas for realizing the structure and property prediction of 403Nb blade steel hot tandem rolling, the hot compression was carried out using the Gleeble-3500. According to the experimental data, the parameter Z and flow stress equation were worked out; The analysis of the structure shows that the 403Nb dynamic recrystallization forms the nuclear under the bulging mechanism. There are a few thin twins with width 30-100 nm. The NbC particles in the matrix can stick the dislocations, which increase the hot deformation activation energy.

关 键 词：403Nb叶片钢 热压缩 热变形激活能 

分 类 号：TG142.15[一般工业技术—材料科学与工程]