Effect of ball milling on the microstructure and performances of laser clad forming Cr3C2-NiCr composites
ISSN: 1355-2546
Article publication date: 6 November 2018
Issue publication date: 16 April 2019
Abstract
Purpose
The original powder commonly used for laser 3D printing is atomized alloy powder. The purpose of this study is to investigate the effect of ball milling (BM) on the structure and performances of the alloy powder and its composite products.
Design/methodology/approach
BM powder of Ni-Cr-graphite elements was subjected to laser cladding forming and the effect of BM on the powder structure was studied by X-ray diffraction, metallographic microscopy and scanning electron microscopy. The laser cladding-formed coatings were also tested by reciprocating friction measures and electrochemical corrosion experiment.
Findings
The results showed that the grains of laser cladding-formed Cr3C2-NiCr coating of BM powder were more refined compared to the coating of the atomized powder. Moreover, the abrasion resistance and corrosion resistance were slightly improved.
Originality/value
This work offers guidance for new original powder selection for laser 3D printing/powder bed forming/selective laser melting applications.
Keywords
Acknowledgements
This research was financially supported by the National Natural Science Foundation of P. R. China (11204071, 51405141), and Science Research Project of Hubei Provincial Department of Education (B2016051).
Citation
Lou, D., Cao, J., Huang, Y., Lin, C., He, C., Bennett, P. and Liu, D. (2019), "Effect of ball milling on the microstructure and performances of laser clad forming Cr3C2-NiCr composites", Rapid Prototyping Journal, Vol. 25 No. 3, pp. 448-453. https://doi.org/10.1108/RPJ-08-2017-0166
Publisher
:Emerald Publishing Limited
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