Release Time:2019-03-09  Hits:

Indexed by: Journal Article

Date of Publication: 2012-08-01

Journal: MATERIALS & DESIGN

Included Journals: EI、SCIE

Volume: 39

Page Number: 14-19

ISSN: 0261-3069

Key Words: Non-ferros metals and alloys; Brazing and soldering; Microstructure

Abstract: In this article, a series of Sn-xZn solders are designed for joining Mg/Al dissimilar metals by low temperature brazing. The effect of Zn content in Sn-Zn solders on microstructure evolution and mechanical properties of the different brazed joints are investigated. The experimental results indicate that Sn-30Zn alloy is identified as the optimized solder. Al-Sn-Zn solid solutions form and disperse in the brazing zone of the Mg/Sn-30Zn/Al brazed joint, decreasing the risk of embrittlement of the brazed joint. The average shear strength of Mg/Sn-30Zn/Al brazed joint can reach 70.73 MPa. The joint fractures in the coarse blocky Mg2Sn intermetallic phases in the center of the brazing zone. (C) 2012 Elsevier Ltd. All rights reserved.