Microstructure and Properties of Cold Sprayed Cu-Ti3SiC2 Composite Coatings with Different Ceramic Contents

被引：0
|
作者：
Yu T. [1 ]
Ma G. [1 ]
Guo W. [1 ]
He P. [2 ]
Huang Y. [1 ]
Liu M. [1 ]
Wang H. [1 ,3 ]
机构：
[1] National Key Laboratory for Remanufacturing, Army Armored Force Academy, Beijing
[2] Defense Innovation Institute, Academy of Military Science, Beijing
[3] National Engineering Research Center for Remanufacturing, Army Armored Force Academy, Beijing
来源：
Cailiao Daobao/Materials Reports | 2022年 / 36卷 / 07期
基金：
中国国家自然科学基金;
关键词：
Cold spraying; Copper-base composite coating; Mechanical properties; Microstructure; Tribological property;
D O I：
10.11896/cldb.21120172
中图分类号：
学科分类号：
摘要：
In order to obtain metal-ceramic composite coatings with excellent tribological properties, Cu-Ti3SiC2 composite coatings with different ceramic contents were prepared on copper alloy by cold spraying technology. The microstructure, mechanical properties and tribological properties of Cu-Ti3SiC2 composite coatings with different ceramic contents were characterized and analyzed by scanning electron microscope, nano indentation instrument, electronic universal testing machine and reciprocating friction test. The main wear mechanism between Cu-Ti3SiC2 composite coating and 7075Al alloy is adhesive wear during dry friction. The coating with better wear resistance has two main characteristics, as follow: first, it has better mechanical properties and stronger plastic deformation resistance; second, Ti3SiC2 content is high, which can effectively reduce the adhesion of Al in the friction process.It is found that proper ceramic content can effectively improve the mechanical properties of the coa-ting, reduce the porosity of the coating and enhance the wear resistance of the coating. © 2022, Materials Review Magazine. All right reserved.
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