Enhancing Wear Resistance and Mechanical Properties of Eutectoid Pearlitic Steel through Low-Temperature Annealing: Microstructural Transformations and Performance Implications in Railway Applications

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorInstituto Tecnológico Vale-
Autor(es): dc.contributorUniversidade Federal de Juiz de Fora-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversity of Bonab-
Autor(es): dc.contributorUniversidade Federal do ABC (UFABC)-
Autor(es): dc.creatorTressia, G.-
Autor(es): dc.creatorAlves, L. H.D.-
Autor(es): dc.creatorGoldenstein, H.-
Autor(es): dc.creatorGrandini, C. R.-
Autor(es): dc.creatorMohtadi-Bonab, M. A.-
Autor(es): dc.creatorMasoumi, M.-
Data de aceite: dc.date.accessioned2025-08-21T19:33:53Z-
Data de disponibilização: dc.date.available2025-08-21T19:33:53Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2023-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1590/1980-5373-MR-2024-0295-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/305404-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/305404-
Descrição: dc.descriptionThis study investigates the impact of low-temperature annealing treatment at 200°C on the wear resistance and mechanical properties of eutectoid pearlitic steel, commonly used in railway applications. This research primarily focused on understanding the microstructural changes and their correlation with mechanical hardness and wear resistance. Microhardness testing indicated that the hardness of the initial pearlitic microstructure increased from 370 HV to 400 HV following the low-temperature annealing treatment. This increase in hardness was linked to a substantial improvement in wear resistance, evidenced by a 27% decrease in wear rate. Additionally, the low-temperature annealed samples demonstrated a yield strength increase of approximately 21%, albeit with a slight reduction in total elongation. High-resolution Transmission Electron Microscopy analysis post-treatment revealed the emergence of nanoscale transition carbides, needle-type transition carbides, with a hexagonal structure, contributed to an increased nano-hardness of the pearlitic structure from 4.16 GPa to 6.78 GPa. The results suggest that the low-temperature annealing process not only enhances the hardness and wear resistance of pearlitic steel but also induces favorable microstructural changes that could significantly extend the service life of railway components.-
Descrição: dc.descriptionInstituto Tecnológico Vale, MG-
Descrição: dc.descriptionUniversidade Federal de Juiz de Fora Departamento de Engenharia Mecânica, MG-
Descrição: dc.descriptionUniversidade de São Paulo Escola Politécnica Departamento de Engenharia Metalúrgica e de Materiais, SP-
Descrição: dc.descriptionUniversidade Estadual Paulista (UNESP) Laboratório de Anelasticidade e Biomateriais, SP-
Descrição: dc.descriptionUniversity of Bonab Department of Mechanical Engineering-
Descrição: dc.descriptionUniversidade Federal do ABC Centro de Engenharia Modelagem e Ciências Sociais Aplicadas, SP-
Descrição: dc.descriptionUniversidade Estadual Paulista (UNESP) Laboratório de Anelasticidade e Biomateriais, SP-
Idioma: dc.languageen-
Relação: dc.relationMaterials Research-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectnanoscale carbide formation-
Palavras-chave: dc.subjectPearlitic steel-
Palavras-chave: dc.subjectrail steel durability-
Palavras-chave: dc.subjectwear resistance improvement-
Título: dc.titleEnhancing Wear Resistance and Mechanical Properties of Eutectoid Pearlitic Steel through Low-Temperature Annealing: Microstructural Transformations and Performance Implications in Railway Applications-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

Não existem arquivos associados a este item.