奥氏体-铁素体区循环形变对Q235钢力学性能的影响  

Effect o f Austenite - ferrite - repeating Deformation on the Mechanical Properties of Steel Q235

作　　者：唐荻[1] 任学平[1] 崔光春[1] 张海冰[1] 

机构地区：[1]北京科技大学材料科学与工程学院,北京100083

出　　处：《北京科技大学学报》2001年第2期127-130,共4页Journal of University of Science and Technology Beijing

基　　金：国家重大基础研究项目!(No.85-44)

摘　　要：研究开发出了一种钢材组织细化的新方法，即奥氏体－铁素体区循环形变，并采用自行设计的热模拟试样，研究了奥氏体－铁素体区循环形变对Ｑ２３５钢力学性能的影响规律．结果表明：在大部分变形条件下，采用该方法所得到的Ｑ２３５钢的杭拉强度大于５００ＭＰａ，屈服强度大于４００ＭＰａ，伸长率大于２０％，A new way to fine steel structure has been developed. It is the austenite-ferrite-repeating deformation. The effect of austenite - ferrite - repeating deformation on the mechanical properties of steel Q235 has been investigated by introducing a thermal simulation sample which has been worked out by ourselves. The results of the study indicate that the mechanical properties of steel Q235 are enhanced by this new method.

关 键 词：奥氏体—铁素体区循环形变 晶粒细化 力学性能 Q235钢 抗拉强度 屈服强度 伸长率 

分 类 号：TG142.12[一般工业技术—材料科学与工程]