CUED Publications database

Effect of laser heating temperature on coating characteristics of Stellite 6 deposited by cold spray

Luo, F and Kong, F-Z and O'Neil, W and Yao, J-H and Chai, G-Z (2012) Effect of laser heating temperature on coating characteristics of Stellite 6 deposited by cold spray. Binggong Xuebao/Acta Armamentarii, 33. pp. 840-846. ISSN 1000-1093

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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 N 2 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 N 2 and deposition site temperature. In this paper, it presents optimal coating using N 2 at a pressure of 3 MPa and temperature of 450°C and deposition site temperature of 1100°C.

Item Type: Article
Uncontrolled Keywords: Deposited coating Laser-assisted cold spray Medium carbon steel Stellite 6 Surface and interface of materials
Subjects: UNSPECIFIED
Divisions: Div E > Production Processes
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 12:25
Last Modified: 08 Dec 2014 02:36
DOI: