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

fYear

2010

fDate

26-28 June 2010

Firstpage

3818

Lastpage

3821

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Mechanic Automation and Control Engineering (MACE), 2010 International Conference on

Conference_Location

Wuhan

Print_ISBN

978-1-4244-7737-1

Type

conf

DOI

10.1109/MACE.2010.5535320

Filename

5535320