A study on microstructure and flame erosion mechanism of a graded   Ni-Cr-B-Si coating prepared by laser cladding

doi:10.1016/j.surfcoat.2014.02.021

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	A study on microstructure and flame erosion mechanism of a graded Ni-Cr-B-Si coating prepared by laser cladding
	Xuan, Hui-Feng ; Wang, Qin-Ying ; Bai, Shu-Lin ; Liu, Zong-De ; Sun, Hua-Gang ; Yan, Peng-Cheng
刊名	表面和涂层技术
	2014
关键词	Ni-Cr-B-Si coating Laser cladding Microstructure Hardness Flame erosion mechanism COMPOSITE COATINGS HARDFACING ALLOYS ALUMINUM-ALLOY RESISTANCE BEHAVIOR WEAR INDUSTRY NICKEL
DOI	10.1016/j.surfcoat.2014.02.021
英文摘要	The graded coating of Ni-Cr-B-Si alloy was prepared on a low carbon steel substrate by a laser cladding process. Its microstructure, hardness and flame erosion mechanisms were measured and analyzed. The flame erosion tests at 1300 C were carried out with variable angle, velocity and time duration of particle impacting. It is found that the coating consists mainly of gamma-Ni solid solution, FeNi3/Ni33Si12 eutectic and CrB ceramic phase, and has a graded hardness variation with an average value of about seven times that of the substrate material. The main flame erosion mechanism of the coating changed from brittle to ductile deformation depending on impact time, angle and velocity, and manifested by lamellar stratifying, oxide particle splashing, incising, grooving and extrusion. The impact angle is found to play a key role in the mass loss of the coating under flame erosion. (C) 2014 Elsevier B.V. All rights reserved.; Materials Science, Coatings & Films; Physics, Applied; SCI(E); EI; 7; ARTICLE; slbai@pku.edu.cn; 203-209; 244
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/154281]
专题	工学院
推荐引用方式 GB/T 7714	Xuan, Hui-Feng,Wang, Qin-Ying,Bai, Shu-Lin,et al. A study on microstructure and flame erosion mechanism of a graded Ni-Cr-B-Si coating prepared by laser cladding[J]. 表面和涂层技术,2014.
APA	Xuan, Hui-Feng,Wang, Qin-Ying,Bai, Shu-Lin,Liu, Zong-De,Sun, Hua-Gang,&Yan, Peng-Cheng.(2014).A study on microstructure and flame erosion mechanism of a graded Ni-Cr-B-Si coating prepared by laser cladding.表面和涂层技术.
MLA	Xuan, Hui-Feng,et al."A study on microstructure and flame erosion mechanism of a graded Ni-Cr-B-Si coating prepared by laser cladding".表面和涂层技术 (2014).