电焊机2024，Vol.54Issue(2)：58-63,76,7.DOI:10.7512/j.issn.1001-2303.2024.02.09
Ag-Cu-Sn-Cr真空钎焊金刚石/铜合金接头微观组织与剪切强度
Microstructure and Shear Strength of Diamond/Cu Alloy Joint Brazed with Ag-Cu-Sn-Cr Filler Metal
摘要
Abstract
The diamond film was brazed with copper alloy using Ag-Cu-Sn-Cr active brazing material.The study analyzed the effect of brazing temperature on the microstructure and mechanical properties of the joint.The results indicate that the in-terface between the brazing material and diamond is well bonded,and Cr in the brazing material reacts with diamond to form Cr3C2 carbides at the interface.The center of the brazing seam is mainly composed of Cu based solid solution,Ag based solid solution,Cu3Sn intermetallic compound,and Cr.When the brazing temperature is in the range of 780～840℃,as the temperature increases,the interface reaction layer gradually thickens,and the shear strength of the brazed joint first in-creases and then decreases.At the optimal brazing temperature of 820℃and holding time of 15 minutes,the maximum shear strength of the joint reached 147 MPa.By optimizing the brazing temperature,reliable connection between diamond film and copper alloy has been successfully achieved.This method can provide new ideas and technical approaches for the connection between hard and brittle materials and metals in actual industrial production.关键词
金刚石/钎焊/铜合金/微观组织/力学性能Key words
diamond/brazing/copper alloy/microstructure/mechanical properties分类
矿业与冶金引用本文复制引用
高峰,邢秀宽,王国强,钟志宏..Ag-Cu-Sn-Cr真空钎焊金刚石/铜合金接头微观组织与剪切强度[J].电焊机,2024,54(2):58-63,76,7.基金项目
安徽省自然科学基金项目(2208085ME134) （2208085ME134）
合肥工业大学国家级大学生创新创业训练计划项目(202110359010) （202110359010）
