Study of the morphology and properties of diamond joints brazed with carbide-reinforced Cu-Sn-Ti filler metal  

作　　者：Cui Bing Song Longyu Liu Zhengwei Sun Panpan 崔冰;宋拢雨;刘正未;孙盼攀(School of Materials Science and Engineering,Anhui University of Technology,Ma'anshan 243032,China)

机构地区：[1]School of Materials Science and Engineering,Anhui University of Technology,Ma'anshan 243032,China

出　　处：《China Welding》2022年第3期53-60,共8页中国焊接（英文版）

基　　金：supported by the Anhui provincial Natural Science Foundation(No.2008085QE231).

摘　　要：Cu-Sn-Ti brazing filler is a new type of copper-based brazing filler for brazing diamond tools currently used in industry,but it suffers from poor wear resistance,high brazing temperature and low bond strength.This paper provides a way to improve the strength of dia-mond-brazed joints by adding zirconium carbide and tungsten carbide reinforcing phase particles to the Cu-Sn-Ti alloy,respectively.Dia-mond particles were attached to Q460 steel using Cu-Sn-Ti composite filler with the addition of the reinforcing phase,and experimental in-struments such as scanning electron microscope,X-ray diffractometer and energy spectrometer were used to investigate the brazed joint per-formance of the composite brazing material for brazing diamond.The results show that the addition of enhanced phase particles resulted in a metallurgical reaction at the joint of the composite brazed diamond,achieving a higher strength joint with no obvious cracks at the interface,while the addition of 15 wt.%WC resulted in excellent wear resistance and the highest hardness at the joint interface.

关 键 词：BRAZING diamond tools Cu-Sn-Ti brazing material enhanced phase particles 

分 类 号：TG454[金属学及工艺—焊接]