Effect of Laser Heating Temperature on Coating Characteristics of Stellite 6 Deposited by Cold Spray

doi:10.3969/j.issn.1000-1093.2012.07.014

Acta Armamentarii ›› 2012, Vol. 33 ›› Issue (7): 840-846.doi: 10.3969/j.issn.1000-1093.2012.07.014

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Effect of Laser Heating Temperature on Coating Characteristics of Stellite 6 Deposited by Cold Spray

LUO Fang^1,3, KONG Fan-zhi₃, William O’NEIL₂, YAO Jian-hua₃, CHAI Guo-zhong₃

(1.College of Zhijiang, Zhejiang University of Technology, Hangzhou 310024, Zhejiang, China;2.Institute for Manufacturing, Department of Engineering, University of Cambridge, CB3 OFS, UK;3.College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310012, Zhejiang, China)

Received:2011-01-10 Revised:2011-01-10 Online:2017-02-28
Contact: LUO Fang E-mail:luofang@zjut.edu.cn

Abstract

Abstract: Laser-assisted cold spray (LCS) is a new coating and fabrication process which combines some advantages of CS: solid-state deposition, retain their initial composition and high build rate with the ability to deposit materials which are either difficult or impossible to deposit using cold spray alone. Stellite 6 powder is deposited on medium carbon steels by LCS using N₂ as carrier gas pressure. The topography, cross section thickness, structure of the coatings is examined by SEM, optical microscopy, EDX. The results show that thickness and fluctuation of coating are improved with increased deposition site temperature. Porosity of coating is affected by N₂ and deposition site temperature. In this paper, it presents optimal coating using N₂ at a pressure of 3 MPa and temperature of 450 ℃ and deposition site temperature of 1 100 ℃.

Key words: surface and interface of materials, medium carbon steel, laser- assisted cold spray, Stellite 6, deposited coating

CLC Number:

TG174.4

LUO Fang, KONG Fan-zhi₃, William O’NEIL₂, YAO Jian-hua₃, CHAI Guo-zhong₃. Effect of Laser Heating Temperature on Coating Characteristics of Stellite 6 Deposited by Cold Spray[J]. Acta Armamentarii, 2012, 33(7): 840-846.

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Effect of Laser Heating Temperature on Coating Characteristics of Stellite 6 Deposited by Cold Spray

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