Abstract
A novel tungsten carbide (WC)-reinforced nickel (Ni)-based laser cladding layer prepared by in-situ synthesized process. The growth mechanism of the cladding layer was explored. Furthermore, the mechanism of the influence of different concentrations for CeO2/Y2O3 doping on the microstructures, wear and corrosion resistance of in-situ synthesized WC-reinforced Ni-based cladding layer were analyzed. The results revealed that the optimal content of rare earth oxides using the CeO2 content of 0.75% and the Y2O3 content of 1.50%, which exhibit outstanding hardness (660HV0.2) and excellent wear resistance. In addition, the minimum corrosion rate of the coating were 0.002770 mm/a and 0.0022548 mm/a, with the noble Ecorr (-0.12549 V/-0.49924 V) and lower Icorr (2.3550×10-7 A·cm2/1.9170×10-7 A·cm2). The doping of rare earth oxides in the cladding layer excellently enhances the wear and corrosion resistance, which was mainly ascribed to the rare earth oxides have better refining grain and purifying effect on the cladding layer organization.
Keywords
Array
Array
Array
Array
References
Authors retain copyright of the published papers and grant to the publisher the non-exclusive right to publish the article, to be cited as its original publisher in case of reuse, and to distribute it in all forms and media.
The Author(s) warrant that their manuscript is their original work that has not been published before; that it is not under consideration for publication elsewhere; and that its publication has been approved by all co-authors, if any, as well as tacitly or explicitly by the responsible authorities at the institution where the work was carried out. The Author(s) affirm that the article contains no unfounded or unlawful statements and does not violate the rights of others. The author(s) also affirm that they hold no conflict of interest that may affect the integrity of the Manuscript and the validity of the findings presented in it. The Corresponding author, as the signing author, warrants that he/she has full power to make this grant on behalf of the Author(s). Any software contained in the Supplemental Materials is free from viruses, contaminants or worms.The published articles will be distributed under the Creative Commons Attribution ShareAlike 4.0 International license (CC BY-SA).
Authors are permitted to deposit publisher's version (PDF) of their work in an institutional repository, subject-based repository, author's personal website (including social networking sites, such as ResearchGate, Academia.edu, etc.), and/or departmental website at any time after publication.
Upon receiving the proofs, the Author(s) agree to promptly check the proofs carefully, correct any typographical errors, and authorize the publication of the corrected proofs.
The Corresponding author agrees to inform his/her co-authors, of any of the above terms.