Cavitation and high-velocity slurry erosion resistance of welded Stellite 6 alloy |
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| Affiliation: | 1. Tribology and Surfaces Group, National University of Colombia, Cra 80 N 65-223, Medellín, Colombia;2. Welding Group, National University of Colombia, Cl 59A N 63-20, Medellín, Colombia;1. Turbine Testing Lab, Kathmandu University, Dhulikhel, Nepal;2. State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing, China;1. Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576, Singapore;2. Institute of High Performance Computing, 1 Fusionopolis Way, Singapore 138632, Singapore;1. National Research Council, Energy, Mining and Environment, Vancouver, BC, Canada V6T 1W5;2. Department of Process Engineering and Applied Science, Materials Engineering Program, Dalhousie University, Halifax, NS, Canada B3J 2X4;1. Department of Mechanical and Aerospace Engineering, University of Strathclyde, Glasgow, Scotland;2. Weir Engineering Services, Oil and Gas Division, East Kilbride, Glasgow, Scotland;1. Department of Energy and Process Engineering, Norwegian University of Science and Technology, Norway;2. Department of Mechanical Engineering, Kathmandu University, Nepal;1. Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, China;2. Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;3. Key Laboratory of Green Fabrication and Surface Technology of Advanced Metal Materials, Ministry of Education, School of Materials Science and Engineering, Anhui University of Technology, Maanshan 243000, China;4. Shi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, 62 Wencui Road, 110016 Shenyang, China;5. Corrosion and Protection Division, Shenyang National Laboratory for Materials Science, School of Materials Science and Engineering, Northeastern University, Shenyang 110819, China |
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| Abstract: | The cavitation and slurry erosion resistances of Stellite 6 coatings and 13-4 stainless steel were compared in laboratory. The Cavitation Resistance (CR) was measured according to ASTM G32 standard and the Slurry Erosion Resistance (SER) was tested in a high-velocity erosion tester under several impact angles. The results showed that the coatings improved the CR 15 times when compared to bare stainless steel. The SER of the coatings was also higher for all the impingement angles tested, the highest erosion rate being observed at 45°. The main wear mechanisms were micro-cracking (cavitation tests), and micro-cutting and micro-ploughing (slurry erosion tests). |
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