电焊机2025，Vol.55Issue(11)：90-95,6.DOI:10.7512/j.issn.1001-2303.2025.11.12
SnSb11Cu6巴氏合金机器人TIG堆焊层组织及力学性能
Microstructure and Mechanical Properties of SnSb11Cu6 Babbitt Alloy Robot TIG Cladding Layer
摘要
Abstract
To meet the performance requirements of high-load,wear-resistant,and long-life for the sliders of high-efficiency low-speed diesel engines in large ships,engineering machinery,and other fields,robot TIG welding technology is employed to prepare SnSb11Cu6 Babbitt alloy cladding layers on the surface of Q235B steel.The microstructure and interface element distribution of the cladding layer are characterized through optical microscopy(OM),scanning electron microscopy(SEM),and energy dispersive spectroscopy(EDS).The interfacial bonding strength is tested,and the dye penetration method is uti-lized to inspect the surface quality of the cladding layer.Results show that a good metallurgical bond is formed between the cladding layer and the substrate,with a uniform dilution layer size of approximately 20μm in the transition area,without ap-parent elemental segregation and metallurgical defects.Mechanical property tests indicate that the hardness of the overlay layer is uniform,with an average hardness of 28.0 HB,and the average bonding strength between the cladding layer and the substrate reaches 51.22 MPa,with small data fluctuations within the group,suggesting that the interfacial bonding quality is stable and meets the requirements of high-strength working conditions;no surface defects were found through dye penetra-tion inspection.The research results demonstrate that SnSb11Cu6 Babbitt alloy forms a high-performance cladding layer on the surface of Q235B steel,meeting the application demands under low-speed,heavy-duty lubrication conditions.关键词
巴氏合金/机器人TIG堆焊/界面结合强度/微观组织/力学性能Key words
Babbitt alloy/robot TIG cladding/interfacial bonding strength/microstructure/mechanical properties分类
金属材料引用本文复制引用
郑珲,孙超,刘正武,邓越,马飞煌,常超..SnSb11Cu6巴氏合金机器人TIG堆焊层组织及力学性能[J].电焊机,2025,55(11):90-95,6.基金项目
上海市"科技创新行动计划"扬帆专项(22YF1417200) （22YF1417200）
