Reactive synthesis TiN reinforced matrix composite coating by electric-spark deposition

被引：0
|
作者：
Hao, Jianjun [1 ,2 ]
Huang, Jihua [1 ]
Zhao, Jianguo [2 ]
Chen, Zhiqiang [2 ]
机构：
[1] School of Materials Science and Engineering, University of Science and Technology of Beijing, Beijing 100083, China
[2] College of Electromechanical Engineering, Agriculture University of Hebei, Baoding 071001, China
来源：
Hanjie Xuebao/Transactions of the China Welding Institution | 2007年 / 28卷 / 10期
关键词：
Bonding - Carbon steel - Deposition - Electric sparks - Hardness testing - Metallic matrix composites - Microhardness - Microstructure - Quenching - Scanning electron microscopy - Synthesis (chemical) - Titanium nitride - Wear resistance - X ray diffraction analysis;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
TiN metal matrix composite coating was deposited on 45 steel substrate with the home-made special gas-filled-closed electric-spark deposition device and electric-spark deposition machine modeled DZ-1400, and the industry pure titanium (TA2) was used for electrode and the industry pure nitrogen for shielding and reactive gas. The phase of coatings was analyzed using X-ray diffractometer. The microstructure of coatings was investigated with scanning electron microscope. The microhardness of coatings was tested by hardness-testing device. The wear-resisting property of coatings was compared with that of W18Cr4V rapid steel treated by quenching using the home-made abrasion machine. The results indicated that excellent bonding between the coating and the carbon steel substrate is ensured by the strong metallurgical interface. The coatings was mainly made up of Ti coming from electrode, TiN ceramic particle synthesized in-situ and Fe coming from substrate. The average microhardness of coating is 1323 HV0.1 and its wear-resisting property is better than that of W18Cr4V rapid steel treated by quenching.
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页码：33 / 36
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