Microstructure and Wear Behavior of MMC Coatings Deposited by Plasma Transferred Arc Welding and Thermal Flame Spraying Processes
| Autor: | Milos B. Djukic, Vesna Maksimović, Bratislav Rajicic, Gordana Bakić, Vladimir Pavkov, Aleksandar Maslarevic |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Scanning electron microscope Particle velocity 0211 other engineering and technologies 02 engineering and technology Welding engineering.material Erosion protection coatings 01 natural sciences law.invention chemistry.chemical_compound Wear Coating law Tungsten carbide Impact angle 0103 physical sciences Thermal spraying 021102 mining & metallurgy 010302 applied physics Solid particle erosion Metallurgy Plasma transferred arc (PTA) Microstructure chemistry Vickers hardness test engineering Arc welding |
| Zdroj: | Transactions of the Indian Institute of Metals |
| ISSN: | 0975-1645 0972-2815 |
| DOI: | 10.1007/s12666-019-01831-9 |
| Popis: | In this study, two erosion protection MMC coatings with WC particles were deposited by the plasma transferred arc (PTA) welding. One of the coatings with tungsten carbide WC in the NiBSi matrix (WC/NiBSi), and the second coating WC in NiCrBSi matrix (WC/NiCrBSi) was deposited by the flame spray process on the same substrate material S235JR steel. Experiments were performed using a gas blast sand erosion test facility with high-velocity erodent particles impact (approximately 100 m/s) at different particle impact angles (20°–45°), with an objective to study erosion wear characteristics and mass loss of two MMC coatings. Microstructural characterization of MMC coatings was done by scanning electron microscope equipped with energy-dispersive X-ray spectroscopy, whereas X-ray diffraction analysis was used for identification of present phases. The hardness of coatings was determined by Vickers hardness measurements. WC/NiBSi obtained by the PTA process shows superior hardness and erosion properties. © 2019, The Indian Institute of Metals - IIM. |
| Databáze: | OpenAIRE |
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