Title :
Effects of processing parameters on microstructure and performance of plasma cladding coatings
Author :
Pan, Chenggang ; Wang, Huachang ; Zhou, Jialin
Author_Institution :
Sch. of Mater. Sci. & Eng., Wuhan Univ. of Technol., Wuhan, China
Abstract :
In order to improve service life of hot forging die, Ni60-SiC cermet coating was prepared on the high speed steel W6Mo5Cr4V2 under different processing parameters using plasma cladding technology. The clad coating composition, microstructure and microhardness were analyzed by X-ray diffractometer (XRD), optical microscopy (OPM) and microhardness tester. The experimental results show that Ni+25 wt. % SiC composite coating with pre-placed layer thickness T=3mm has the best metallurgical bonding and best microhardness profile.
Keywords :
X-ray diffraction; cermets; cladding techniques; crystal microstructure; dies (machine tools); forging; hot working; microhardness; nickel alloys; optical microscopy; steel; tungsten alloys; Ni60-SiC cermet coating; OPM; W6Mo5Cr4V2; X-ray diffractometer; XRD; clad coating composition; coating microhardness; coating microstructure; high speed steel; hot forging die; metallurgical bonding; microhardness tester; optical microscopy; plasma cladding coating; service life; Ceramics; Chromium; Coatings; Forging; Microstructure; Optical microscopy; Plasma materials processing; Plasma x-ray sources; Steel; X-ray diffraction; Ni-SiC composite coating; microstructure; mircohardness; plasma cladding; processing parameters;
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.2010.5535320
