山东科学2024，Vol.37Issue(6)：67-74,8.DOI:10.3976/j.issn.1002-4026.20240021
常用双极板焊接工艺及其接头组织性能对比研究
Comparative study on the common bipolar plate welding processes and their joint microstructures and performance
摘要
Abstract
In order to study the welding methods suitable for metal bipolar plates,0.1 mm 316L stainless steel was welded by four common bipolar plate welding methods:laser welding,vacuum diffusion welding,brazing and ultrasonic welding.The potentiodynamic polarization curves of four kinds of welded joints were measured by using CHI-604E electrochemical workstation.The electrochemical corrosion properties of four kinds of welded joints were compared,and the electrochemical corrosion behavior was analyzed by combining microstructure and chemical composition.It is found that the corrosion resistance of vacuum diffusion welded joints and laser welded joints is strong,and the corrosion resistance of ultrasonic welded joints and brazed joints is weak.The post-weld deformation of four kinds of welded specimens was measured by laser spectral confocal microscope.Under the action of fixture,the deformation of laser welded specimens was smaller than that of other specimens.The welding time and welding process used in the welding process of the four welding methods were compared.After comprehensive comparison,laser welding is finally determined as the best choice for these four common metal bipolar plate welding methods.关键词
激光焊接/钎焊/真空扩散焊/超声波焊/316L不锈钢/电化学腐蚀/焊后变形量Key words
laser welding/brazing/vacuum diffusion welding/ultrasonic welding/316L stainless steel/galvanic corrosion/post-weld deformation分类
电子信息工程引用本文复制引用
侯东旭,殷子强,任远,马新强,成巍..常用双极板焊接工艺及其接头组织性能对比研究[J].山东科学,2024,37(6):67-74,8.基金项目
国家自然科学基金(51305245、51505267、51805303) （51305245、51505267、51805303）
山东省重点研发项目(2019JZZY010452、2019GGX104036) （2019JZZY010452、2019GGX104036）
山东省自然科学基金(ZR2012EEQ013、ZR2020ME150) （ZR2012EEQ013、ZR2020ME150）
山东省科技型中小企业创新能力提升工程项目(2022TSGC1130、2022TSGC2567、2023TSGC0617) （2022TSGC1130、2022TSGC2567、2023TSGC0617）
