1.20%铝冷轧TRIP钢的合金设计、工艺和力学性能  

Design,Processing and Mechanical Properties of Cold Rolled TRIP Steel Bearing 1.20% Aluminum

作　　者：李忠义[1,2] 张建[1] 柳得橹[2] 娄艳芝[2] 刘学华[1] 

机构地区：[1]马鞍山钢铁股份有限公司技术中心,安徽马鞍山243000 [2]北京科技大学材料科学与工程学院,北京100083

出　　处：《钢铁》2010年第2期78-81,94,共5页Iron and Steel

摘　　要：报道了含1.2%Al-0.1%C-Mn-Si冷轧TRIP600钢带的研究开发结果,通过合金设计、冶炼、热轧、冷轧和热处理在实验室成功地制备了TRIP600钢带,其屈服强度为390-420 MPa、抗拉强度650-700 MPa,伸长率30.5%-37.5%,强塑积21000-26000 MPa.%。作为热处理工艺设计的基础,通过Thermo-Calc软件计算了试验钢的相图、相组成、贝氏体转变TTT曲线和T0温度线。含质量分数为1.20%铝的冷轧TRIP600的成分设计和工艺参数可以作为工业试生产TRIP600的基础。TRIP-600 steel containing 1.2%Al was reserched on a laboratory scale.The phase diagrams,TTT curves and T0 lines of bainite formation in the steel were calculated with Thermo-Calc.The TRIP600 strips were successfully prepared through a designed process including steel-making,hot and cold rolling as well as heat treatments.Tensile strength 650-700 MPa,yield strength 390-420 MPa and total elongation 30.5%-37.5% is obtained for the steel strips.The chemical compositions and processing parameters can be referred for trial-manufacture of TRIP 600 steels.

关 键 词：冷轧TRIP钢 含铝钢 残余奥氏体 组织与性能 

分 类 号：TG142.4[一般工业技术—材料科学与工程]