Title :
Characterization of microstructure and properties of nanostructured Fe-Al/WC intermetallic composite coating deposited by cold spraying
Author :
Wang, Hong-Tao ; Ji, Gang-Chang ; Li, Chang-Jiu
Author_Institution :
Sch. of Mech. & Mater. Eng., JiuJiang Univ., Jiujiang, China
Abstract :
A nanostuctured Fe-Al/WC intermetallic compound-based coating was produced by cold spraying of ball-milled powder assisted with post-annealing treatment. The microstructure of the as-milled powder and cold-sprayed coating was investigated. It was found that the as-milled Fe-Al/WC composite alloy powder had lamellar structure and the microstructure of the as-sprayed coating depended significantly on the microstructure of as-milled powder. A Fe-Al intermetallic phase was formed during the annealing treatment at a temperature higher than 500°C. The microhardness of the as-sprayed coating reached 680 Hv0.1 and more. The effect of the annealing treatment on the coating microstructure and hardness was examined.
Keywords :
aluminium alloys; annealing; ball milling; iron alloys; microhardness; nanostructured materials; particle reinforced composites; spray coating techniques; Fe-AlWC; as-milled powder; ball milling; cold spray coating; composite alloy powder; intermetallic composite coating; microhardness; microstructural characterization; nanostructured materials; post annealing treatment; Annealing; Coatings; Intermetallic; Microstructure; Nanostructured materials; Optical wavelength conversion; Plasma temperature; Powders; Raw materials; Thermal spraying; Cold spraying; FeAl; Intermetallic compound; Microstructure; Property;
Conference_Titel :
Mechanic Automation and Control Engineering (MACE), 2010 International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-7737-1
DOI :
10.1109/MACE.2010.5536571
