期刊论文

Effect of Surface Texturing on the Interfacial Microstructure and Bonding Strength of Babbitt Alloy Cladding by MIG Welding

中文

表面技术

1001-3660

2021

50

10

239-245

10.16490/j.cnki.issn.1001-3660.2021.10.023

51975270:国家自然科学基金 51705287:国家自然科学基金 51505210:国家自然科学基金 2019JJ40245:湖南省自然科学基金 :南华大学核燃料循环技术与装备湖南省协同创新中心开放基金项目

本校为第一机构

目的利用MIG焊在表面毛化处理的Q235钢基体上堆焊SnSb11Cu6合金,研究表面毛化作用对界面组织及结合强度的影响。方法设计毛化形貌分别为直槽和网格槽的毛化形式,槽深分别为0.15、0.3 mm,槽间距分别为1、1.5 mm,采用MIG焊方法在毛化钢基板上堆焊巴氏合金。利用X射线衍射仪分析巴氏合金堆焊层的组织成分。利用金相显微镜、扫描电镜和X射线能谱仪表征巴氏合金堆焊层的界面组织、微观形貌和元素分布。利用电子万能试验机、体视显微镜检测巴氏合金与钢基体间的结合强度以及润湿角。结果毛化处理虽然会降低巴氏合金与钢基体的浸润性,但是增加了巴氏合金与钢基体间的接触面积;毛化凹槽中嵌合部分巴氏合...

To study the effect of surface texturing on the interface microstructure and bonding strength,the SnSb11Cu6 alloy cladding was prepared by MIG welding on the Q235 steel substrates which were pre-textured.The texturing morphology of straight grooves and grids with the depths of 0.1 mm and 0.3 mm,the spacings of 1 mm and 1.5 mm were used.The composition of the Babbitt alloy cladding layer was analyzed through XRD.Metallurgical microscope,SEM and EDS were applied to characterize the interfacial microstructure,microscopic morphology and element distribution of the interface.The bonding strength an...