Properties and tribological performance of ceramic-base chromium and vanadium carbide composite coatings |
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| Affiliation: | 1. Department of Metallurgical and Materials Engineering, Faculty of Engineering and Natural Sciences, Iskenderun technical University, 31200, Hatay, Turkey;2. Department of Materials Engineering, Faculty of Engineering and Architecture, Nev?ehir Hac? Bekta?-I Veli University, 50000 Nev?ehir, Turkey;3. Department of Engineering Science, Oxford Institute of Biomedical Engineering, University of Oxford, OX3 7DQ Oxford, UK;4. Department of Mechanical Engineering, Faculty of Engineering, Bart?n University, 74000 Bart?n, Turkey;1. Institute for NanoScale Science and Technology, Flinders Microscopy and Microanalysis, Flinders University, GPO Box 2100, Adelaide, South Australia 5001, Australia;2. School of Mechanical Engineering, University of Adelaide, South Australia, Australia;3. School of Manufacturing Engineering, University Malaysia Perlis, Malaysia;1. Department of Mechanical Engineering, Pennsylvania State University, PA 16802, USA;2. Applied Research Laboratory, Pennsylvania State University, PA 16802, USA;3. Wright Patterson AFB, Dayton, OH 45433, USA;1. Department of Materials Science and Engineering, Texas A&M University, College Station, TX 77843-3003, USA;2. ARL South at Texas A&M University, FCDD-RLW-MF, College Station, TX 77843-3003, USA;3. Shear Form, Inc., 207 Dellwood St., Bryan, TX 77801, USA;1. School of Materials Science and Engineering, Shandong University of Technology, Zibo 255049, China;2. School of Materials Science and Engineering, Tianjin Polytechnic University, Tianjin 300387, China;1. School of Metallurgy and Materials Engineering, Iran University of Science and Technology, Tehran 16844, Iran;2. Center of Excellence for High Strength Alloys Technology, Iran University of Science and Technology, Tehran 16844, Iran;3. Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China |
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| Abstract: | In the current study, the surface of AISI D2 steel was coated with the powder blends of ferro-vanadium (Fe-V) and ferro-chromium (Fe-Cr). The coatings were performed using a thermo-reactive diffusion (TRD) treatment by the pack cementation method at three different temperatures (900 °C, 1000 °C, and 1100 °C) and three different durations (1 h, 2 h, and 3 h). The structural and mechanical characteristics of the coatings were compared between the treatment groups. For this aim, the types of the formed phases, the microstructure, the microhardness, the surface roughness, and the wear and friction performance of the coated samples were examined. XRD analysis found composite carbide coatings including chromium carbide (Cr-C), vanadium carbide (V-C), and chromium vanadium carbide (Cr-V-C). The coatings' thickness was 11.3–23.2 μm, hardness was 2100–2500 HV, and average surface roughness (Ra) was 0.286–0.550 μm, depending on the treatment condition. The vanadium containing phase contents of the coatings increased with the elevating coating temperatures. The formed composite coating layers caused a change in the appearance of wear track and wear mechanism on the material surface. After the coating process, there found to be a decrease in the friction coefficient as well as an improvement in the wear resistance up to 7 times. In the composite coating layers, the increase in V-C content in comparison to Cr-C led to an enhancement in wear resistance on the material surface. |
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