材料科学与工程学报2025，Vol.43Issue(1)：62-67,6.DOI:10.14136/j.cnki.issn1673-2812.2025.01.009
固体氧化物燃料电池用Ti3SiC2/SUS430复合双极板材料直接扩散焊接连接性能
Direct Diffusion Welding Performance of Ti3SiC2/SUS430 Composite Bipolar Plate Material for Solid Oxide Fuel Cell
摘要
Abstract
A Ti3SiC2/SUS430 composite bipolar plate material is placed on the anode side,and a ceramic is placed on the cathode side,which can eliminate the phenomenon of"cathodic poisoning".The direct diffusion welding of SUS430 and Ti3SiC2 was carried out at 850-1150℃using Gleeble 3500 thermal simulation testing machine.The influences of welding temperature on the joint structure and microstructure were studied by analyzing the microscopy of the joint interface.The results show that when the welding temperature is lower than 950℃,there is no obvious mutual diffusion of the matrix elements.Therefore,it is difficult to obtain a reliable joint.When the welding temperature is 1050℃,the interface between SUS430 and Ti3SiC2 ceramics has achieved a well bonding,presenting a discontinuous serrated morphology.When the welding temperature is above 1150℃,diffuses to the SUS430 matrix,which causes the topological decomposition of Ti3SiC2.At the same time,Fe and Cr diffuse to the Ti3SiC2 matrix,and a reaction layer is formed at the interface,indicating that the two materials have basically achieved effective welding.However,welding cracks are formed due to the mismatch of the thermal expansion of the two materials.A middle layer can be added during diffusion welding to obtain a compact bipolar plate material.关键词
固体氧化物燃料电池/Ti3SiC2/SUS430/扩散焊接/界面反应Key words
Solid oxide fuel cell/Ti3SiC2/SUS430/Diffusion connection/Interface reaction分类
化学化工引用本文复制引用
韦守李,郑莉莉,徐斌,时婧,孙明月,程强,赵经香,常修亮,戴作强,李希超..固体氧化物燃料电池用Ti3SiC2/SUS430复合双极板材料直接扩散焊接连接性能[J].材料科学与工程学报,2025,43(1):62-67,6.基金项目
国家自然科学基金青年基金项目(52001179) （52001179）
山东省自然科学基金项目(ZR2020ME019) （ZR2020ME019）
