首页|Microstructure and mechanical properties of transient liquid phase bonding Ti3SiC2 ceramic to SUS430 steel using an Al interlayer

Microstructure and mechanical properties of transient liquid phase bonding Ti3SiC2 ceramic to SUS430 steel using an Al interlayer

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Ti3SiC2 ceramic and SUS430 ferritic stainless steel were welded by the transient liquid phase(TLP)diffusion bonding method using an Al interlayer at 850-1050℃ in vacuum.The evolution of phase and morphology at the interface and bonding strength were systematically investigated.The results show that Ti3SiC2 and SUS430 were well bonded at 900-950℃.Three reaction zones were observed at the interface.At the joint interface area adjacent to alloy,the alloy completely reacted with liquid Al to form Al86Fe14.At Ti3SiC2/Al interface,Ti and Si diffused outward from Ti3SiC2 into the molten Al to form Fe3Al+Al5FeSi+TiAl3 zone.Adjacent to Ti3SiC2 matrix,Ti3Si(Al)C2+TiCx zone was formed by the loss of Si.The evolution mechanism of TLP-bonded joints was discussed based on the interface microstructure and product phases.In addition,the tensile strength of the joint increased with increasing bonding temperature.The corre-sponding maximum value of 59.7 MPa was obtained from SUS430/Al(10 μm)/Ti3SiC2 joint prepared at 950℃.

Ti3SiC2 ceramicSUS430 ferritic stainless steelTransient liquid phase bonding techniqueMicrostructureMechanical property

Jing-xiang Zhao、Xi-chao Li、Jing Shi、Qiang Cheng、Bin Xu、Ming-yue Sun、Li-li Zheng

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College of Mechanical and Electrical Engineering,Qingdao University,Qingdao 266071,Shandong,China

National Engineering Research Centre for Intelligent Electrical Vehicle Power System(Qingdao),Qingdao University,Qingdao 266071,Shandong,China

School of Materials Science and Engineering,Ocean University of China,Qingdao 266100,Shandong,China

Key Laboratory of Nuclear Materials and Safety Assessment,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,Liaoning,China

Shenyang National Laboratory for Materials Science,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,Liaoning,China

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National Natural Science Foundation of ChinaNatural Science Foundation of Shandong Province,China

52001179ZR2020ME019

2024

钢铁研究学报(英文版)
钢铁研究总院

钢铁研究学报(英文版)

CSTPCD
影响因子:0.584
ISSN:1006-706X
年,卷(期):2024.31(10)