Q235钢堆焊不锈钢的接头组织与硬度分析  

Analysis on Microstructure and Hardness of Surfacing Joint of Stainless Steel on Q235 Steel

作　　者：李科[1] 吴志生[1] 刘翠荣[1] 杨东星 

机构地区：[1]太原科技大学材料科学与工程学院,山西太原030024 [2]晋西工业集团有限公司理化计量中心,山西太原030027

出　　处：《热加工工艺》2013年第17期155-156,160,共3页Hot Working Technology

基　　金：山西省科技攻关项目(20100321084);太原科技大学青年基金项目(20113001);研究生科技创新项目(20111001)

摘　　要：采用自动埋弧焊工艺,在Q235钢试板表面堆焊了3Cr13不锈钢耐磨层,对接头的显微组织进行了分析,对其显微硬度进行了测试。结果表明,接头的硬度分布与其组织变化相对应,基体平均硬度为132 HV,堆焊层平均硬度为432 HV,堆焊层硬度远大于基体,硬度最大值出现在堆焊金属的第二层,最大值为453 HV。Abstraet：3Crl3 Stainless wear-resistant surfacing layers are made on Q235 steel plate by automatic submerged arc welding. The welded joint＇s microstructure was analyzed, and its hardness was tested. The results show that the hardness distribution corresponds with the mierostrueture transforming, the matrix＇s average hardness is 132HV, and the hardness of surfacing layer is 432HV, the later is greater than the former, and the maximal hardness appears in the second surfacing layer, the maximum value reaches 453HV. Key words：surfacing process; welded joint; microstructure; hardness

关 键 词：堆焊 焊接接头 显微组织 硬度 

分 类 号：TG455[金属学及工艺—焊接]