Abstract
Stellite 6 alloy hardfacing has been popularly applied on the seat face of control valves where both wear and corrosion in various corrosive media are involved. In this research, Stellite 6 alloy hardfacing is prepared via laser cladding and the wear performance and corrosion behavior in morpholine, 3.5 wt % NaCl, and Green Death solution, of this hardfacing are investigated using a pin-on-disc tribometer and a three-electrode cell, respectively. The worn and corroded surfaces are analyzed using SEM/EDS. For comparison, cast Stellite 6 is also studied in parallel. The experimental results show that cast Stellite 6 has better wear resistance than laser clad Stellite 6 but better corrosion resistance in the corrosive media due to better retention of the oxide film on the specimen surface.
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ACKNOWLEDGMENTS
The authors are grateful for the financial support provided by Zhejiang Provincial Commonweal Technology Application Research Project (no. 2017C31048), Zhejiang Provincial International Science and Technology Cooperation Project of the Belt and Road Initiative (2017C04008), and the Program of Introducing Talents of Discipline to Universities (111 Project, no. 110000213920168001).
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Ding, Y.P., Liu, R., Wang, L. et al. Corrosion and Wear Performance of Stellite Alloy Hardfacing Prepared via Laser Cladding. Prot Met Phys Chem Surf 56, 392–404 (2020). https://doi.org/10.1134/S2070205120020069
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DOI: https://doi.org/10.1134/S2070205120020069