Paper Title:

Thermal Damage of Diamond Grits during the Brazing Process with Ni-Cr Alloy

Periodical Solid State Phenomena (Volume 175)
Main Theme Application of Diamond and Related Materials
Edited by Xipeng Xu
Pages 22-26
DOI 10.4028/www.scientific.net/SSP.175.22
Citation Yan Chen et al., 2011, Solid State Phenomena, 175, 22
Online since June, 2011
Authors Yan Chen, Jiu Hua Xu, Yu Can Fu, Hong Hua Su
Keywords Diamond Grits, Morphology, Ni-Cr Brazing Alloy, Strength, Thermal Damage
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Abstract

During the brazing process, the high brazing temperature, the chemical and physical reaction between diamond and alloy, and the residual stress would result in the thermal damage of diamond. The morphology and mechanism of thermal damage is studied when the brazed diamond grits is brazed using Ni-Cr alloy in this paper. The results show that the manifestations of the thermal damage mainly include surface graphitization, erosion pits, microcrack and breaking. The graphitization only occurs on the surface of diamond grits. And the microcrack of diamond grits appears near interface.