TRIP800钢板点焊接头的组织和性能
Microstructure and Properties of Spot Welded Joint of TRIP800 Steel Plate
摘 要
用点焊焊接工艺对1.8 mm厚的高强度TRIP800钢板进行焊接, 对接头进行了剪切试验, 分析了焊接接头的硬度分布、显微组织及断口形貌。结果表明: 试验工艺下点焊接头内基本不存在明显的缺陷, 接头具有良好的剪切性能;接头熔合区为板条状马氏体组织, 热影响区为马氏体、铁素体及贝氏体高温回火组织;剪切断口显现出韧性断裂特点。
点焊
显微组织
剪切强度
TRIP800 steel plate
spot welding
microstructure
shear strength
Abstract
High-strengthed TRIP800 steel plates of 1.8 mm thickness were spot welded, and then shear testing was performed on joint, and hardness distribution, microstructure and fracture morphology were analysed. The results show that there were not obvious defects in welded joint under testing process conditions, and the joint owned good shear property. The microstructure of joint fusion zone was strip martensite, and the microstructure of joint heat affected zone were martensite, ferrite and high-remperature tempered banitte. The shear fracture showed ductile tear characteristics.
中图分类号 TG453
所属栏目 试验研究
基金项目 国家自然科学基金资助项目(51171030)
收稿日期 2012/9/4
修改稿日期 2013/6/28
网络出版日期
作者单位点击查看
备注于燕(1962-), 女, 辽宁金县人, 教授, 博士。
引用该论文: YU Yan,YANG Hai-feng,ZHANG Xiao-meng. Microstructure and Properties of Spot Welded Joint of TRIP800 Steel Plate[J]. Materials for mechancial engineering, 2013, 37(9): 13～15
于燕,杨海峰,张小盟. TRIP800钢板点焊接头的组织和性能[J]. 机械工程材料, 2013, 37(9): 13～15
被引情况:
【1】涂英明,景财年,范吉超,倪晓梅,刘鹏,李怀学北京航空制造工程研究所, 北京 100084, "焊接速度对DP590双相钢板激光焊接接头组织和性能的影响",机械工程材料 40, 69-72(2016)
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参考文献
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