Paper Titles
Committee
Preface
The Remanufacturing Engineering and Automatic Surface Engineering Technology
p.1
Effect of Plasma Sprayed Ceramic and Cermet Coatings on Wear-Out Failure of High Temperature Ball Valve
p.11
Preparation and Characterization of Ni-Al-Cr3C2 Coating
p.15
Comparative Study of 321 Stainless Steel and 321-Al Composite Coatings Deposited by Arc Spraying Process
p.19
Effect of HVOF Sprayed MCrAlY Coating on Thermomechanical and Isothermal Fatigue Life of Superalloy M963
p.23
Performance Study of Erosion Wear of Nanostructured WC-12Co Coatings Sprayed by HVOF
p.27
Fabrication and Evaluation of Plasma-Sprayed Functionally Gradient W/Cu Coatings as Plasma Facing Materials in Fusion Devices
p.31

Preparation and Characterization of Ni-Al-Cr3C2 Coating

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Abstract:

In order to improve the surface properties of the machine parts, the NiAl cladding Cr3C2 powder were flame and plasma sprayed. The morphology, microstructure, composition and wear properties of the coatings were examined. The results show that due to the exothermal reaction of the Ni and Al elements, the bonding strength of the coatings are improved, and the main compositions of the coatings are Ni3Al inter-metallic compound and Cr3C2. The flame sprayed and plasma sprayed coatings show almost the same micro-hardness and friction coefficient. But the microstructure of the plasma sprayed coating is more compact than that of the frame sprayed one and the wear resistance of the flame and sprayed coatings is 30% and 120% higher than that of the 1045 steel, respectively. The main wear mechanisms of the coatings are plastic deformation and spallation, and the high bonding strength and the uniformly distributed Cr3C2 particles play important anti-wear roles.

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Periodical:

Key Engineering Materials (Volumes 373-374)

Pages:

15-18

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.373-374.15

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Online since:

March 2008

Authors:

Ling Zhong Du, Wei Gang Zhang, Deng Jun Zhang, Bao Hou Li

Keywords:

Flame Spray, Plasma Spraying, Tribological Property

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© 2008 Trans Tech Publications Ltd. All Rights Reserved

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