| 铁基Cr3C2复合涂层的组织及性能研究 |
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| 引用本文： | 杨康,易新林,斯松华,张海鸿.铁基Cr3C2复合涂层的组织及性能研究[J].热喷涂技术,2021,13(1):65-72. |
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| 作者姓名： | 杨康 易新林 斯松华 张海鸿 |
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| 作者单位： | 安徽工业大学 先进金属材料绿色制备与表面技术教育部重点实验室;安徽工业大学 先进金属材料绿色制备与表面技术教育部重点实验室 安徽工业大学 材料科学与工程学院 |
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| 摘 要： | 利用空气燃料超音速火焰喷涂技术(HVAF)在D2钢表面制得Cr3C2-FeCrBSi复合涂层.借用光学显微镜(OM)、维氏硬度计、扫描电镜(SEM)、拉伸试验机及摩擦磨损试验机对复合涂层的显微结构、力学性能及摩擦磨损性能进行表征与测试,研究了不同比例纳米-微米Cr3C2陶瓷增强相对复合涂层组织结构及性能的影响.试验结果...
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| 关 键 词： | HVAF Cr3C2-FeCrBSi复合涂层 组织结构 结合强度 摩擦磨损性能 |
Study on Microstructure and Properties
of Fe-based Cr3C2 Composite Coatings |
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| Yang Kang,Yi Xinlin,Si Songhu,Zhang Haihong.Study on Microstructure and Properties
of Fe-based Cr3C2 Composite Coatings[J].Thermal Spray Technology,2021,13(1):65-72. |
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| Authors: | Yang Kang Yi Xinlin Si Songhu Zhang Haihong |
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| Affiliation: | Key Laboratory of Green Fabrication and Surface Technology of Advanced Metal Materials, Ministry of Education, Anhui
University of Technology;Key Laboratory of Green Fabrication and Surface Technology of Advanced Metal Materials, Ministry of Education, Anhui
University of Technology,School of Material Science and Engineering, Anhui University of Technology |
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| Abstract: | Cr3C2-FeCrBSi composite coatings were sprayed on D2 steel by High Velocity Air Fuel Spray (HVAF).
The microstructure, mechanical and wear properties of Cr3C2-FeCrBSi composite coatings were tested by optical
microscope (OM), Vickers hardness tester, scanning electron microscope (SEM), universal tensile tester and
friction and wear tester to study the effect of different nano-micro proportions of Cr3C2 reinforcement elements
on composite coatings. The results showed that the Cr3C2-FeCrBSi composite coatings consist of Fe, Cr3C2, Cr2O3
and Cr7C3 phase. Under optimized parameter, the bonding strength between the composite coating and D2 steel
can reach 43MPa and the coating porosity is about 5.4%. Because of the existence of Cr3C2 ceramic phase, the
surface hardness of the composite coating is very high with an average hardness 449HV0.3, which is much larger
than that of D2 steel (287HV0.3). At room temperature, the Cr3C2-FeCrBSi composite coating exhibited good wear
resistance. The abrasive wear is the main friction and wear mechanism. |
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| Keywords: | HVAF Cr3C2-FeCrBSi composite coating Microstructure Bonding strength Friction and wear
properties |
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