电焊机2024，Vol.54Issue(10)：10-16,41,8.DOI:10.7512/j.issn.1001-2303.2024.10.02
石墨对TC4表面金刚石复合涂层组织与耐磨性能影响
The Influence of Graphite on the Microstructure and Wear Resistance of Diamond Composite Coating on TC4
摘要
Abstract
In order to improve the surface wear resistance of titanium alloy materials,TC4(Ti-6Al-4V)was selected as the matrix material in this paper.A certain proportion of diamond and graphite particles were added to TiZrCuNi brazing mate-rial to make a composite coating material.The diamond composite brazing coating on TC4 was achieved by induction braz-ing under argon protection.The effect of graphite addition on the microstructure and wear resistance of composite coatings was studied,revealing the interaction mechanism between the active element Ti and diamond and graphite.The research re-sults indicate that after adding graphite,the composite coating is mainly composed of diamond,TiC,Ti2Cu,ZrC,Zr2Cu,NiZr2,and residual graphite.Due to the presence of a large number of helical dislocations in graphite,it provides nucleation sites for TiC,allowing it to grow along the dislocations,thus evolving the growth mode of TiC into enveloping growth and ultimately forming a hexagonal shape.The addition of graphite weakens the wear resistance of the composite coating to a certain extent,but can increase the cutting edge rate of diamond particles,thereby improving grinding efficiency.关键词
TC4/金刚石/钎涂/石墨/耐磨性能Key words
TC4/Diamond/Brazing coating/graphite/wear resistance分类
矿业与冶金引用本文复制引用
刘攀,孙华为,秦建,杨子佳,刘晟,刘永华,王威,陶汪,周立涛..石墨对TC4表面金刚石复合涂层组织与耐磨性能影响[J].电焊机,2024,54(10):10-16,41,8.基金项目
中原科技创新领军人才(234200510015) （234200510015）
河南省重点研发专项(241111233300) （241111233300）
