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Dilution and C content estimation of stellite 6 fabricated on a 1050 steel substrate by laser cladding

Journal Article


Abstract


  • Stellite 6 was fabricated by laser cladding on a 1050 steel (MS) substrate with laser powers of 1 kW (MS-1) and 1.8 kW (MS-1.8). The chemical compositions and microstructures of the coatings were analysed by X-Ray Fluoroscense, optical microscopy and scanning electron microscopy. The microhardness of the coatings was examined and the wear mechanism of the coatings was evaluated using a ball-on-plate wear testing machine. The results indicated less cracking and pore development for Stellite 6 coatings applied to the 1050 steel substrate with the lower laser power (MS-1). Moreover, the Stellite coating for MS-1 was significantly harder than that obtained for MS-1.8. The wear test results showed that the weight loss for MS-1 was much lower than for MS-1.8. The evaluations of dilution and calculation of carbon content indicated that MS-1 has lower dilution and higher coating C content than MS-1.8. It is concluded that the lower hardness of the coating for MS-1.8, substantially reduced the wear resistance of the Stellite 6 coating and the lower hardness of the coating for MS-1.8 was due to higher level of dilution and lower coating C content. The coating-substrate couple must be considered in assessing the likely performance of the coating under service conditions.

Publication Date


  • 2017

Citation


  • Kusmoko, A., Dunne, D., & Li, H. (2017). Dilution and C content estimation of stellite 6 fabricated on a 1050 steel substrate by laser cladding. Solid State Phenomena, 263 SSP, 131-136. doi:10.4028/www.scientific.net/SSP.263.131

Scopus Eid


  • 2-s2.0-85030179459

Web Of Science Accession Number


Start Page


  • 131

End Page


  • 136

Volume


  • 263 SSP

Abstract


  • Stellite 6 was fabricated by laser cladding on a 1050 steel (MS) substrate with laser powers of 1 kW (MS-1) and 1.8 kW (MS-1.8). The chemical compositions and microstructures of the coatings were analysed by X-Ray Fluoroscense, optical microscopy and scanning electron microscopy. The microhardness of the coatings was examined and the wear mechanism of the coatings was evaluated using a ball-on-plate wear testing machine. The results indicated less cracking and pore development for Stellite 6 coatings applied to the 1050 steel substrate with the lower laser power (MS-1). Moreover, the Stellite coating for MS-1 was significantly harder than that obtained for MS-1.8. The wear test results showed that the weight loss for MS-1 was much lower than for MS-1.8. The evaluations of dilution and calculation of carbon content indicated that MS-1 has lower dilution and higher coating C content than MS-1.8. It is concluded that the lower hardness of the coating for MS-1.8, substantially reduced the wear resistance of the Stellite 6 coating and the lower hardness of the coating for MS-1.8 was due to higher level of dilution and lower coating C content. The coating-substrate couple must be considered in assessing the likely performance of the coating under service conditions.

Publication Date


  • 2017

Citation


  • Kusmoko, A., Dunne, D., & Li, H. (2017). Dilution and C content estimation of stellite 6 fabricated on a 1050 steel substrate by laser cladding. Solid State Phenomena, 263 SSP, 131-136. doi:10.4028/www.scientific.net/SSP.263.131

Scopus Eid


  • 2-s2.0-85030179459

Web Of Science Accession Number


Start Page


  • 131

End Page


  • 136

Volume


  • 263 SSP