650 MPa轻量化轮辋用钢焊接性能研究  

STUDY ON WELDING PERFORMANCE OF 650 MPa STEEL FOR LIGHTWEIGHT WHEEL RIM

作　　者：何晓波 刘艳玲 万国喜 He Xiaobo;Liu Yanling;Wan Guoxi(Henan Iron and Steel Group Co.,Ltd;Henan Jinye New Material Science and Technology Co.,Ltd)

机构地区：[1]河南钢铁集团有限公司,河南郑州450046 [2]河南省金冶新材料科技有限公司

出　　处：《河南冶金》2024年第1期5-7,22,共4页Henan Metallurgy

摘　　要：通过对650 MPa轻量化轮辋用钢冷裂纹敏感指数、焊接CCT曲线的研究,对热模拟焊接接头不同冷却速度的组织和硬度的检测分析,制定下游用户轮辋焊接工艺,并对焊接热影响区进行研究。研究表明:650 MPa轻量化轮辋用钢焊接淬硬性小,钢材易焊接。The cold crack sensitivity index and welding CCT curve of 650 MPa steel for lightweight wheel rim was studied,the microstructures and hardnesses of the thermal simulated welded joints at different cooling rates were analyzed,the welding processes of the wheel rim for downstream user was formulated,and the heat affect zone was analyzed as well.Research shows that 650 MPa steel for lightweight wheel rim has low hardenability and good weldability.

关 键 词：裂纹敏感指数 焊接热模拟 焊接CCT曲线 

分 类 号：TG406[金属学及工艺—焊接]