In this paper,a Ti-Zr-Cu-Ni-Co system Ti-based brazing alloy is recently designed.Compared with BПP16 brazing alloy,Zr content in the new brazing alloy is increased to some extent,and the total amount of alloying elements Cu,Ni,and Co is lower than that of elements Cu and Ni in BПP16 brazing alloy.Melting and brazing experiments for TC4 alloy were conducted under the vacuum heating condition of 960℃/10min.The microstructures of the brazed joints were examined under SEM and the compositions of some micro-zones were analyzed through XEDS.The test results of mechanical properties of the brazed joints show that,compared with BПP16 brazing alloy,the impact roughness of the joints brazed with the new brazing foils is increased by 56%,and moreover,the shear strength is also increased by about 20%.
CHEN Bo;MAO Wei;XIE Yong-hui;XIONG Hua-ping;CHENG Yao-yong;GUO Wan-lin;LI Xiao-hong.
Design of Ti-Zr-Cu-Ni-Co System Ti-Based Brazing Alloy and Mechanical Properties of TC4 Brazed Joints[J]. Journal of Aeronautical Materials, 2006, 26(1): 59-62
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