摘要
以BNi2箔为中间层对TM52/Q235异种材料进行瞬时液相扩散焊接(TLP),研究了保温时间对接头界面组织、力学性能和电化学性能的影响。结果表明:TM52/Q235能实现良好的冶金结合,当保温时间为20 min时,接头的剪切强度最大,达到491.3 MPa,且剪切断口呈现明显的韧性断裂特征。接头的耐腐蚀性随着保温时间的升高呈现持续下降的趋势,当保温时间为15 min时,焊缝处形成的钝化膜最为致密,腐蚀速率最小,极化电阻R_(P)最高,为1880.1Ω。
The transient liquid phase diffusion welding(TLP)of TM52/Q235 dissimilar materials was carried out with BNi2 foil as the interlayer,and the effect of holding time on interface microstructure,mechanical properties and electrochemical properties of the joint was studied.The results show that the TM52/Q235 can achieve good metallurgical bonding.When the holding time is 20 min,the shear strength of the joint is the largest,reaching 491.3 MPa,and the shear fracture presents obvious ductile fracture characteristics.The corrosion resistance of the joint decreases continuously with the increase of the holding time.When the holding time is 15 min,the passive film formed at the weld is the densest,the corrosion rate is the lowest,and the polarization resistance R_(P) is the highest,which is 1880.1Ω.
作者
甘翊
黄本生
陈劲松
张雷
伍艳秋
GAN Yi;HUANG Ben-sheng;CHEN Jin-song;ZHANG Lei;WU Yan-qiu(School of Mechanical and Electrical Engineering,Southwest Petroleum University,Chengdu 610500,China;Energy Equipment Institute,Southwest Petroleum University,Chengdu 610500,China;Texas Instruments Semiconductor Manufacturing Co Ltd,Chengdu 611731,China;Department of Metallurgical,Laiwu Vocational and Technical College,Jinan 271100,China)
出处
《材料热处理学报》
CAS
CSCD
北大核心
2023年第4期205-214,共10页
Transactions of Materials and Heat Treatment
基金
莱芜职业技术学院青年教师(团队)科研基金项目(2021qnzx01)。
关键词
瞬时液相扩散焊接(TLP)
保温时间
力学性能
电化学性能
transient liquid phase diffusion welding(TLP)
holding time
mechanical property
electrochemical property
