中碳调质铸钢焊接接头焊后消应力处理研究  

Research on Post-weld Stress Relief Treatment of Welded Jointsfor Medium Carbon Quenched and Tempered Cast Steel

作　　者：郑春雷[1] 杨永强 欧阳建国 李川 Zheng Chunlei;Yang Yongqiang;Ouyang Jianguo;Li Chuan

机构地区：[1]燕山大学材料学院材料综合实验教学示范中心,河北066004 [2]巨力索具股份有限公司河北省吊索具工程技术研究中心,河北072550 [3]中信戴卡股份有限公司工程技术研究院,河北066011

出　　处：《大型铸锻件》2021年第4期20-22,共3页Heavy Casting and Forging

基　　金：国家重点计划(2017YFB0304501)。

摘　　要：介绍了G34CrMo4焊接接头分别进行焊后消应力处理和不进行焊后消应力处理的各项力学性能对比。数值分析后,拉伸性能变化在1.5%以内,但冲击和硬度指标在进行焊后消应力处理后均有了明显改善,证实该中碳调质铸钢进行焊后消应力处理是必要的。The comparison of various mechanical properties of G34CrMo4 welded joints with and without post-weld stress relief treatment has been introduced.After numerical analysis,the tensile properties change within 1.5%,but the impact and hardness indicators have been significantly improved after the post-weld stress relief treatment,which proves that the post-weld stress relief treatment of the medium carbon quenched and tempered cast steel is necessary.

关 键 词：中碳铸钢 焊后消应力处理 G34CrMo4 

分 类 号：TG44[金属学及工艺—焊接]