纳米结构NiCrFeBSi喷涂涂层组织及磨损性能

马  光1; 孙冬柏2; 樊自拴2

引用本文:	马光1，孙冬柏2，樊自拴2.纳米结构NiCrFeBSi喷涂涂层组织及磨损性能[J].中国表面工程,2011,24(2):37~40
	MA Guang1, SUN Dong–bai2, FAN Zi–shuan1.Microstructures and Wear Properties of Nanostructured NiCrFeBSi Sprayed Coatings[J].China Surface Engineering,2011,24(2):37~40

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纳米结构NiCrFeBSi喷涂涂层组织及磨损性能
马光1，孙冬柏2，樊自拴2^1,2
1. 中国电力科学研究院电工与新材料研究所，北京 100192;2. 北京科技大学腐蚀与防护中心，北京 100083

摘要:

利用AC–HAVF喷涂技术制备了纳米结构NiCrFeBSi涂层，对涂层微观结构及磨损性能进行研究。结果表明：涂层主要由γ–Ni固溶体以及FeNi3，Ni3B等化合物组成，涂层颗粒主要由80～100 nm的纳米粒子组成，部分粒子达到20～30 nm；涂层与基体结合很好，孔隙率低，约为3.25 %；涂层具有较好的耐磨性，磨损失重约为基体的1/2，较基体有一定程度的提高；涂层磨损以疲劳磨损为主。

关键词: AC–HVAF 纳米结构NiCrFeBSi涂层微观结构磨损性能

DOI：

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基金项目:北京市重大科技项目子项目 (H020420050020)

Microstructures and Wear Properties of Nanostructured NiCrFeBSi Sprayed Coatings

MA Guang1, SUN Dong–bai2, FAN Zi–shuan1^1,2

1. Department of Electrical Engineer and New Material Application, China Electric Power Research Institute, Beijing 100192;2. Beijing Corrosion and Protection Center, University of Scince and Technology Beijing, Beijing 100083

Abstract:

Nanostructured NiCrFeBSi coatings were prepared by using AC–HVAF spraying technology, the microstructures and wear property were investigated. The results show that the coating consists of γ–Ni solid solution and FeNi3，Ni3B phases; the coatings are well combined with the substrates, the porosity rate is about 3.25 %; main particle sizes of the coatings are about 80～100 nm, parts of particle can reach 20～30 nm; the coatings have high hardness and good wear resistance, wear mass lost is about 1/2 of that of the substrate; the main wear mechanism is fatigue wear.

Key words: AC–HVAF nanostructured Ni–based coatings microstructures wear property