Study of Fe-Ni(Cr) Alloy and Nano-Al2O3 Particles Composite Coating Prepared by Laser Cladding

Yeo Jian Hua; Zhang Wei; Gao Ming Xia; Zhang Qun Li

doi:10.4028/www.scientific.net/SSP.118.585

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HomeSolid State PhenomenaSolid State Phenomena Vol. 118Study of Fe-Ni(Cr) Alloy and Nano-Al2O3 Particles...

Study of Fe-Ni(Cr) Alloy and Nano-Al₂O₃ Particles Composite Coating Prepared by Laser Cladding

Abstract:

The experiments of laser cladding Ni-coated nano-Al2O3 powder were made on 2Cr13 stainless steel using 7kW CO2 laser processing system. The microstructure and mechanical characteristics of composite coating were tested by scanning electronic microscope (SEM), X-ray diffraction (XRD), energy dispersion analyzer of X-ray (EDAX) and microhardness tester. The results showed that the composite coating was composed of superfine cellular dendritic structure. The X-ray diffraction data revealed that the cellular grains were composed of nano-Al2O3 particles, iron nickel alloy and iron chromium alloy. The mechanical characteristics of composite coating greatly increased. Compared with parent metal, the average hardness of composite coating increased by 1 time, and its wear property increased by 1.25 times.

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Periodical:

Solid State Phenomena (Volume 118)

Pages:

585-590

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.118.585

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Online since:

December 2006

Authors:

Yeo Jian Hua, Zhang Wei, Gao Ming Xia, Zhang Qun Li

Keywords:

Composite Coating, Laser Cladding, Microstructure, Nano-Al₂O₃, Property Analysis

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