alexa Microstructure Evolution and Brazing Mechanism of Ti2Sn
ISSN: 2169-0022

Journal of Material Sciences & Engineering
Open Access

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Review Article

Microstructure Evolution and Brazing Mechanism of Ti2SnC-Ti6Al4V Joint by Using Cu Pure Foil

Yu W*

School of Material Science and Engineering, Tsinghua University, China

*Corresponding Author:
Yu W
School of Material Science and Engineering, Tsinghua University, China
Tel: 861062793001
E-mail: [email protected]

Received Date: June 14, 2016; Accepted Date: September 02, 2016; Published Date: September 12, 2016

Citation: Yu W (2016) Microstructure Evolution and Brazing Mechanism of Ti2SnCTi 6Al4V Joint by Using Cu Pure Foil. J Material Sci Eng 5: 278. doi:10.4172/2169-0022.1000278

Copyright: © 2016 Yu W. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

The MAX phase Ti2SnC was successfully welded to Ti6Al4V (TC4) through Cu interlayer in Ar atmosphere at low temperature 750ºC, during 1h under an applied mechanical pressure 10 MPa. The results indicated that the outward diffusion of Sn from Ti2SnC played a critical role in the chemical composition of joints. After 60 mins, the reaction layers consist of five zones: interleaved β-Cu(Sn) and α-Cu(Sn) zone zone (V), enriched Sn and CuTi0.5Sn0.5 intermetallic phase (IV), poor Sn, Ti and rich Cu zone (III), Ti3Cu4 intermetallic (II) and β-Ti (Cu) phase (I). Shear test results showed that the average shear strength reached 85.7 ±10 MPa. Corresponding fractographs indicated that the crack mainly propagated along Ti2SnC substrate adjacent to the bonding zone, accompanied with an intergranular fracture mode.

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