Effect of TiC-CNT precipitates on the microstructure and hardness of coatings welded by the GTAW process
| Main Author: | |
|---|---|
| Publication Date: | 2024 |
| Other Authors: | , , , , |
| Format: | Article |
| Language: | eng |
| Source: | Repositório Institucional da UNESP |
| Download full: | http://dx.doi.org/10.1016/j.matlet.2024.137490 https://hdl.handle.net/11449/298147 |
Summary: | Carbon nanotubes (CNT)-reinforced metal matrix nanocomposites balance toughness and ductility and, therefore, can reduce maintenance costs of industrial equipment. In this sense, flux-cored made of low carbon steel filled with CNT/Ti6Al4V/CaF2 were used as filler metal to coat an A131 grade A steel sheet via GTAW process. SEM and Raman spectroscopy analyses evidence the partial phase transformation between Ti and CNT in TiC-CNT precipitates, which can act as barriers to dislocation movements in a ferritic matrix. Consequently, the hardnesses of the coatings were up to 33.9–77.4 % higher than the base metal. Therefore, incorporating TiC-CNT precipitate-based reinforcements via arc welding can improve the hardness of conventional steels. |
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Effect of TiC-CNT precipitates on the microstructure and hardness of coatings welded by the GTAW processHardnessMicrostructureNanocompositeReinforcementWeldingCarbon nanotubes (CNT)-reinforced metal matrix nanocomposites balance toughness and ductility and, therefore, can reduce maintenance costs of industrial equipment. In this sense, flux-cored made of low carbon steel filled with CNT/Ti6Al4V/CaF2 were used as filler metal to coat an A131 grade A steel sheet via GTAW process. SEM and Raman spectroscopy analyses evidence the partial phase transformation between Ti and CNT in TiC-CNT precipitates, which can act as barriers to dislocation movements in a ferritic matrix. Consequently, the hardnesses of the coatings were up to 33.9–77.4 % higher than the base metal. Therefore, incorporating TiC-CNT precipitate-based reinforcements via arc welding can improve the hardness of conventional steels.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)PRODERNA Federal University of Para, PAFEIS Sao Paulo State University - Ilha Solteira Campus, SPFEIS Sao Paulo State University - Ilha Solteira Campus, SPFederal University of ParaUniversidade Estadual Paulista (UNESP)Fabíola Pantoja Pinheiro, PaulaRicardo Loayza Loayza, CristhianGedael Fagundes Júnior, José [UNESP]Patrícia Aranha da Paz, Simonede Magalhães Braga, EduardoAllan Leite dos Reis, Marcos2025-04-29T18:36:15Z2024-12-15info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.matlet.2024.137490Materials Letters, v. 377.1873-49790167-577Xhttps://hdl.handle.net/11449/29814710.1016/j.matlet.2024.1374902-s2.0-85205310078Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMaterials Lettersinfo:eu-repo/semantics/openAccess2025-04-30T14:08:40Zoai:repositorio.unesp.br:11449/298147Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestrepositoriounesp@unesp.bropendoar:29462025-04-30T14:08:40Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
| dc.title.none.fl_str_mv |
Effect of TiC-CNT precipitates on the microstructure and hardness of coatings welded by the GTAW process |
| title |
Effect of TiC-CNT precipitates on the microstructure and hardness of coatings welded by the GTAW process |
| spellingShingle |
Effect of TiC-CNT precipitates on the microstructure and hardness of coatings welded by the GTAW process Fabíola Pantoja Pinheiro, Paula Hardness Microstructure Nanocomposite Reinforcement Welding |
| title_short |
Effect of TiC-CNT precipitates on the microstructure and hardness of coatings welded by the GTAW process |
| title_full |
Effect of TiC-CNT precipitates on the microstructure and hardness of coatings welded by the GTAW process |
| title_fullStr |
Effect of TiC-CNT precipitates on the microstructure and hardness of coatings welded by the GTAW process |
| title_full_unstemmed |
Effect of TiC-CNT precipitates on the microstructure and hardness of coatings welded by the GTAW process |
| title_sort |
Effect of TiC-CNT precipitates on the microstructure and hardness of coatings welded by the GTAW process |
| author |
Fabíola Pantoja Pinheiro, Paula |
| author_facet |
Fabíola Pantoja Pinheiro, Paula Ricardo Loayza Loayza, Cristhian Gedael Fagundes Júnior, José [UNESP] Patrícia Aranha da Paz, Simone de Magalhães Braga, Eduardo Allan Leite dos Reis, Marcos |
| author_role |
author |
| author2 |
Ricardo Loayza Loayza, Cristhian Gedael Fagundes Júnior, José [UNESP] Patrícia Aranha da Paz, Simone de Magalhães Braga, Eduardo Allan Leite dos Reis, Marcos |
| author2_role |
author author author author author |
| dc.contributor.none.fl_str_mv |
Federal University of Para Universidade Estadual Paulista (UNESP) |
| dc.contributor.author.fl_str_mv |
Fabíola Pantoja Pinheiro, Paula Ricardo Loayza Loayza, Cristhian Gedael Fagundes Júnior, José [UNESP] Patrícia Aranha da Paz, Simone de Magalhães Braga, Eduardo Allan Leite dos Reis, Marcos |
| dc.subject.por.fl_str_mv |
Hardness Microstructure Nanocomposite Reinforcement Welding |
| topic |
Hardness Microstructure Nanocomposite Reinforcement Welding |
| description |
Carbon nanotubes (CNT)-reinforced metal matrix nanocomposites balance toughness and ductility and, therefore, can reduce maintenance costs of industrial equipment. In this sense, flux-cored made of low carbon steel filled with CNT/Ti6Al4V/CaF2 were used as filler metal to coat an A131 grade A steel sheet via GTAW process. SEM and Raman spectroscopy analyses evidence the partial phase transformation between Ti and CNT in TiC-CNT precipitates, which can act as barriers to dislocation movements in a ferritic matrix. Consequently, the hardnesses of the coatings were up to 33.9–77.4 % higher than the base metal. Therefore, incorporating TiC-CNT precipitate-based reinforcements via arc welding can improve the hardness of conventional steels. |
| publishDate |
2024 |
| dc.date.none.fl_str_mv |
2024-12-15 2025-04-29T18:36:15Z |
| dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
| dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
| format |
article |
| status_str |
publishedVersion |
| dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.matlet.2024.137490 Materials Letters, v. 377. 1873-4979 0167-577X https://hdl.handle.net/11449/298147 10.1016/j.matlet.2024.137490 2-s2.0-85205310078 |
| url |
http://dx.doi.org/10.1016/j.matlet.2024.137490 https://hdl.handle.net/11449/298147 |
| identifier_str_mv |
Materials Letters, v. 377. 1873-4979 0167-577X 10.1016/j.matlet.2024.137490 2-s2.0-85205310078 |
| dc.language.iso.fl_str_mv |
eng |
| language |
eng |
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Materials Letters |
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info:eu-repo/semantics/openAccess |
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openAccess |
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Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
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Universidade Estadual Paulista (UNESP) |
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UNESP |
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UNESP |
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Repositório Institucional da UNESP |
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Repositório Institucional da UNESP |
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Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
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repositoriounesp@unesp.br |
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1834482791471906816 |