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Role of micro- and ...
Role of micro- and nano-CeO 2 reinforcements on characteristics and tribological performance of HVOF sprayed Cr3C2-NiCr coatings
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- Chauhan, Hetal R. (författare)
- Sardar Vallabhbhai Patel Institute of Technology (SVIT), Vasad, Gujarat (IND)
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- Saladi, Sekar (författare)
- Sardar Vallabhbhai Patel Institute of Technology (SVIT), Vasad, Gujarat (IND)
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- Variya, Sahil (författare)
- Sardar Vallabhbhai Patel Institute of Technology (SVIT), Vasad, Gujarat (IND)
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- Solanki, Ajaykumar (författare)
- ardar Vallabhbhai Patel Institute of Technology (SVIT), Vasad, Gujarat (IND)
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- Tailor, Satish (författare)
- Metallizing Equipment Co. Pvt. Ltd. (MECPL), Jodhpur, Rajasthan,(IND)
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- Sooraj, K. P. (författare)
- Institute for Plasma Research (IPR), Gandhinagar, Gujarat (IND)
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- Ranjan, Mukesh (författare)
- Institute for Plasma Research (IPR), Gandhinagar, Gujarat (IND)
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- Joshi, Shrikant V., 1960- (författare)
- Högskolan Väst,Avdelningen för avverkande och additativa tillverkningsprocesser (AAT),KAMPT
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(creator_code:org_t)
- 2023
- 2023
- Engelska.
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Ingår i: Surface and Coatings Technology. - 0257-8972 .- 1879-3347. ; 467
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The present study investigates the role of micro- and nano-CeO2 reinforcements on microstructural, mechanical and tribological properties of Cr3C2-NiCr coatings deposited using high-velocity-oxy-fuel (HVOF) spray process. A novel blending method involving ultrasonication, magnetic stirring and 3D-tumbler mixing was used to prepare the micro- and nano-CeO2 reinforced Cr3C2-NiCr feedstock powders. Unreinforced Cr3C2-NiCr coatings were also prepared for comparison purposes. X-ray diffraction, FE-SEM, EDS mapping, optical microscopy and optical profilometry were used to characterize the coatings. Tribological studies were performed on the coatings using modular ball-on-disc tribometer. The results showed that nano-CeO2 reinforced coatings yielded considerable reduction in porosity, surface roughness and CoF values while significantly enhancing the hardness and fracture toughness in comparison to the micro-CeO2 reinforced and unreinforced Cr3C2-NiCr coatings. The addition of nanoCeO2 to the coatings contributed to the microstructure refinement and to the formation of stable tribo-oxide layer, resulting in a lower specific wear rate under identical test conditions. Performance of micro-CeO2 reinforced coatings was intermediate to that of nano-CeO2 reinforced and unreinforced Cr3C2-NiCr coatings.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Bearbetnings-, yt- och fogningsteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Manufacturing, Surface and Joining Technology (hsv//eng)
Nyckelord
- Microstructure refinement
- Cr3C2-NiCr
- HVOF
- Ultrasonication
- Wear
- Production Technology
- Produktionsteknik
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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