回火热处理对460MPa级海洋平台用钢板性能影响研究  

Investigation on Effect of Tempering Treatment on Properties of 460 MPa Grade Plates for Offshore Platform

作　　者：杨跃辉 钟金红 张志军 

机构地区：[1]河北钢铁技术研究总院 [2]舞阳钢铁有限责任公司

出　　处：《宽厚板》2012年第2期4-7,共4页Wide and Heavy Plate

摘　　要：采用低碳的成分设计以及轧后调质工艺,开发出满足标准的50 mm厚460 MPa级钢板,并研究了回火温度对组织性能的影响。结果表明:在此成分设计的条件下,调质态的组织为回火贝氏体和M/A,此类组织具有优良的综合力学性能,而且在较宽的回火温度范围内获得良好的性能匹配。The 460 MPa grade plate with thickness of 50 mm for offshore platform which meets the standard are developed by composition design of low carbon content and Q＋T.The effect of tempering temperature on microstructure and properties is studied.The results show that the microstructure after Q＋T process is tempered bainite and M/A,which ensures the optimal comprehensive properties and obtain a good property match in a wider range of tempering temperature.

关 键 词：海洋平台用钢 低碳贝氏氏体钢 调质工艺 

分 类 号：TG156.5[金属学及工艺—热处理]