高强度C-Mn-Si系冷轧双相钢的研究与开发  

Development of high strength cold rolling C-Mn-Si dual phase steels

作　　者：赵征志[1] 徐刚[1] 金光灿[1] 张增良[1] 赵爱民[1] 程知松[2] 

机构地区：[1]北京科技大学冶金工程研究院,北京100083 [2]北京科技大学高效轧制国家工程研究中心,北京100083

出　　处：《金属热处理》2009年第1期14-18,共5页Heat Treatment of Metals

基　　金：北京市科技计划(D07010300700701)

摘　　要：研究了两种不同成分的C-Mn-Si系冷轧双相钢经过热轧、酸洗和冷轧后,在两相区不同温度下加热和淬火工艺对双相钢力学性能的影响规律,利用光学显微镜和扫描电镜对试制的双相钢进行了显微组织分析。结果表明,通过调整化学成分,采用不同热处理工艺可以获得不同比例的两相组织,从而获得800MPa到1000MPa不同强度级别的高强度冷轧双相钢。Two kinds of C-Mn-Si dual phase steels with different composition were studied. After hot rolling, pickling and cold roiling, the effect of the （ α-γ ） intercritical hardening on mechanical properties of the dual phase steels were investigated. The microstructure was observed and analyzed by optical microscopy and scanning electron microscopy. The resuhs show that the dual phase steels with different proportion of F and M can be obtained by adjusting composition and optimizing the heat treatment parameters, and high strength cold rolling C-Mn-Si dual phase steels with different strength grades from 800 MPa to 1 000 MPa are developed.

关 键 词：双相钢 马氏体 力学性能 

分 类 号：TG142.1[一般工业技术—材料科学与工程]