Microstructure and Hardness of Fe-Based Coating by Plasma Cladding

Li Mei Wang; Jun Bo Liu; Jun Sheng Jiang

doi:10.4028/www.scientific.net/AMM.376.144

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 376Microstructure and Hardness of Fe-Based Coating by...

Microstructure and Hardness of Fe-Based Coating by Plasma Cladding

Abstract:

Plasma cladding experiments were carried out on Q235 steel with Fe-Cr-Ti-C powder. Microstructure and micro-hardness of the composite coatings were investigated by means of optical microscopy (OM), scanning electron microscopy (SEM) and electron probe micro-analyzer (EPMA) and micro-hardness tester. The results indicated that the grains of the cladding coatings with Ti are much finer than that of the Fe-based cladding coating without Ti. Compared with the cladding coatings without Ti, there are more shingle crystals in the cladding coatings with Ti and the hard phase (Cr,Fe)₇C₃ of the eutectic in the coatings increase gradually. The average hardness value of the four cladding coatings is respectively 486.5 HV0.1and 558.8 HV0.1.

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Periodical:

Applied Mechanics and Materials (Volume 376)

Pages:

144-147

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.376.144

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Online since:

August 2013

Authors:

Li Mei Wang, Jun Bo Liu, Jun Sheng Jiang

Keywords:

Fe-Based Coating, Hardness, Microstructure, Plasma Cladding

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