Enhancing the durability of Ti–Al–C coatings: The role of powder composition and processing variables
This study investigated the influence of aggregate powder compositions (Ti–Al-Graphite/Ti–Al–TiC) and processing variables on microstructure, phase composition, and tribological properties of atmospheric plasma sprayed Ti–Al–C coatings. The coatings exhibited a distinct layered structure, with varia...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-01-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785424030291 |
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| author | Huanhuan Hong Panpan Yang Xiang Gui Yang Yang Xia Liu Jianxiang Ding Gobinda Gyawali Kang Yang Shihong Zhang |
| author_facet | Huanhuan Hong Panpan Yang Xiang Gui Yang Yang Xia Liu Jianxiang Ding Gobinda Gyawali Kang Yang Shihong Zhang |
| author_sort | Huanhuan Hong |
| collection | DOAJ |
| description | This study investigated the influence of aggregate powder compositions (Ti–Al-Graphite/Ti–Al–TiC) and processing variables on microstructure, phase composition, and tribological properties of atmospheric plasma sprayed Ti–Al–C coatings. The coatings exhibited a distinct layered structure, with variations in phase composition and microstructure attributed to differences in agglomerated powder and spraying conditions. Incorporating TiC in the agglomerated powder significantly improved the hardness and bonding strength of the coatings. High-temperature friction and wear tests demonstrated superior wear resistance of the TiC-containing coatings compared to those with graphite. The formation of a protective oxide layer, consisting of TixAly and Ti2AlC phases, during frictional sintering oxidation led to enhanced wear resistance at elevated temperatures. The mechanisms of friction and wear in these coatings involved oxidative wear, adhesive wear, and fatigue wear. The results suggest that the composition of the Ti–Al–C coatings can be tailored to optimize their high-temperature tribological performance for various applications. |
| format | Article |
| id | doaj-art-33cbc90e91bc4694987849a997930875 |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-33cbc90e91bc4694987849a9979308752025-01-19T06:25:53ZengElsevierJournal of Materials Research and Technology2238-78542025-01-013429562963Enhancing the durability of Ti–Al–C coatings: The role of powder composition and processing variablesHuanhuan Hong0Panpan Yang1Xiang Gui2Yang Yang3Xia Liu4Jianxiang Ding5Gobinda Gyawali6Kang Yang7Shihong Zhang8Key Laboratory of Green Fabrication and Surface Technology of Advanced Metal Materials, Ministry of Education, Anhui University of Technology, Maanshan, 243002, ChinaKey Laboratory of Green Fabrication and Surface Technology of Advanced Metal Materials, Ministry of Education, Anhui University of Technology, Maanshan, 243002, ChinaKey Laboratory of Green Fabrication and Surface Technology of Advanced Metal Materials, Ministry of Education, Anhui University of Technology, Maanshan, 243002, ChinaCorresponding author.; Key Laboratory of Green Fabrication and Surface Technology of Advanced Metal Materials, Ministry of Education, Anhui University of Technology, Maanshan, 243002, ChinaKey Laboratory of Green Fabrication and Surface Technology of Advanced Metal Materials, Ministry of Education, Anhui University of Technology, Maanshan, 243002, ChinaKey Laboratory of Green Fabrication and Surface Technology of Advanced Metal Materials, Ministry of Education, Anhui University of Technology, Maanshan, 243002, ChinaCorresponding author.; Key Laboratory of Green Fabrication and Surface Technology of Advanced Metal Materials, Ministry of Education, Anhui University of Technology, Maanshan, 243002, ChinaKey Laboratory of Green Fabrication and Surface Technology of Advanced Metal Materials, Ministry of Education, Anhui University of Technology, Maanshan, 243002, ChinaCorresponding author.; Key Laboratory of Green Fabrication and Surface Technology of Advanced Metal Materials, Ministry of Education, Anhui University of Technology, Maanshan, 243002, ChinaThis study investigated the influence of aggregate powder compositions (Ti–Al-Graphite/Ti–Al–TiC) and processing variables on microstructure, phase composition, and tribological properties of atmospheric plasma sprayed Ti–Al–C coatings. The coatings exhibited a distinct layered structure, with variations in phase composition and microstructure attributed to differences in agglomerated powder and spraying conditions. Incorporating TiC in the agglomerated powder significantly improved the hardness and bonding strength of the coatings. High-temperature friction and wear tests demonstrated superior wear resistance of the TiC-containing coatings compared to those with graphite. The formation of a protective oxide layer, consisting of TixAly and Ti2AlC phases, during frictional sintering oxidation led to enhanced wear resistance at elevated temperatures. The mechanisms of friction and wear in these coatings involved oxidative wear, adhesive wear, and fatigue wear. The results suggest that the composition of the Ti–Al–C coatings can be tailored to optimize their high-temperature tribological performance for various applications.http://www.sciencedirect.com/science/article/pii/S2238785424030291Ti-Al-C coatingsPlasma sprayingMAX phasePowder compositionHigh-temperature friction and wear |
| spellingShingle | Huanhuan Hong Panpan Yang Xiang Gui Yang Yang Xia Liu Jianxiang Ding Gobinda Gyawali Kang Yang Shihong Zhang Enhancing the durability of Ti–Al–C coatings: The role of powder composition and processing variables Journal of Materials Research and Technology Ti-Al-C coatings Plasma spraying MAX phase Powder composition High-temperature friction and wear |
| title | Enhancing the durability of Ti–Al–C coatings: The role of powder composition and processing variables |
| title_full | Enhancing the durability of Ti–Al–C coatings: The role of powder composition and processing variables |
| title_fullStr | Enhancing the durability of Ti–Al–C coatings: The role of powder composition and processing variables |
| title_full_unstemmed | Enhancing the durability of Ti–Al–C coatings: The role of powder composition and processing variables |
| title_short | Enhancing the durability of Ti–Al–C coatings: The role of powder composition and processing variables |
| title_sort | enhancing the durability of ti al c coatings the role of powder composition and processing variables |
| topic | Ti-Al-C coatings Plasma spraying MAX phase Powder composition High-temperature friction and wear |
| url | http://www.sciencedirect.com/science/article/pii/S2238785424030291 |
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