Three Distinct Deformation Behaviors of Cementite Lamellae in a Cold-Drawn Pearlitic Wire

Xin, Tuo; Liu, Guiju; Liang, Wenshuang; Cai, Rongsheng; Feng, Honglei; Li, Chen; Li, Jian; Wang, Yiqian

doi:10.1007/s12540-018-0101-z

Cited by 4 publications

(3 citation statements)

References 22 publications

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“…This phenomenon may occur due to projection effects or the large load force during cold drawing process. [ 44 ] More dislocations are formed near the under‐neck region than other areas, with one lattice misfit occurring about every five atomic planes. The lattice spacing of (1,−1,0) ferrite is measured to be 0.211 nm, which is larger than the measured value of 0.206 nm in the initial wire rods.…”

Section: Discussionmentioning

confidence: 99%

“…As shown in Figure 8a, it can clearly observe a neck-down region (indicated by "B") in the cementite lamella. Xin et al [44] first observed a neck-down region in the partly-broken cementite lamella at an atomic scale. The average thickness of the cementite lamella was measured to be 5.5 AE 0.2 nm, and the smallest In this article, the phenomenon is also observed in the thicker and more complete cementite lamella.…”

Section: Fe/fe 3 C Interface Structure Evolutionmentioning

confidence: 99%

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Evolution of Microstructure and Fe/Fe₃C Interface Structure in Cold‐Drawn Pearlitic Steel Wires

Yang,

Bao,

Kang

et al. 2024

steel research int.

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The microstructure, texture, and dislocation configuration of cold‐drawn pearlitic steel wires were investigated by scanning electron microscopy (SEM), electron backscattering diffraction (EBSD), and transmission electron microscopy (TEM). In addition, Fe/Fe3C interface structure at the atomic level was clearly observed and analyzed by high‐resolution TEM (HRTEM), and the microscopic deformation mechanism of cementite lamellae at different drawing strains is revealed. The results show that pearlite lamellae turn to the drawing direction to form ferrite <110> fiber texture, and the cementite and ferrite lamellae are simultaneously thinned with the increase of drawing strain. During the cold drawing process, shear‐bands(S‐bands) are formed in the cementite lamellae; the dislocation of ferrite transits from single slip to multi‐slip stage, and the dislocation density increases. After drawing, the lattice structures of cementite and ferrite phases show the evolution from single‐crystal to polycrystal, and the cementite lamellae are divided into a multilayer structure: central relative large‐size cementite crystal and outside relative small‐size cementite crystal layer; the dissolution of cementite lamellae in some regions results in the lattice expansion of ferrite phase and the occurrence of neck‐down regions in the cementite lamellae.

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Section: Discussionmentioning

confidence: 99%

Section: Fe/fe 3 C Interface Structure Evolutionmentioning

confidence: 99%

Evolution of Microstructure and Fe/Fe₃C Interface Structure in Cold‐Drawn Pearlitic Steel Wires

Yang,

Bao,

Kang

et al. 2024

steel research int.

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“…Nota-se também a alteração da morfologia da perlita devido à deformação severa. Quando deformado severamente existe a possibilidade de sobressaturar a ferrita do carbono seguindo a tendência do processo de trefilação de aços com microestrutura similar o qual resulta numa região com altíssima resistência (XIN et al, 2018). A Figura 4.17 apresenta a superfície abaixo da superfície de desgaste para a amostra de terceira vida.…”

Section: Ensaios De Desgaste Por Deslizamentounclassified

Relação entre a microestrutura e a resistência ao desgaste na pista de rolamento de rodas ferroviárias em suas múltiplas vidas.

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Ao André, meu companheiro de jornada, pela compreensão, incentivo, dedicação, suporte, afeto e parceria em todos os momentos. Aos meus pais (Marcilia e Jaribyin memoriam) e à minha irmã Ana Maria por sempre apoiarem minhas decisões e compreenderem minha ausência em tantos momentos importantes. À minha família, pela união, suporte e muito carinho.Ao meu orientador, Prof. Dr. Hélio Goldenstein, pela oportunidade oferecida no mestrado e por continuar me apoiando no doutorado, por todo conhecimento transmitido nas aulas e nas conversas, sejam acadêmicas ou não, pela confiança depositada em meu trabalho e pelos ótimos conselhos de vida.Ao Prof. Dr. Luiz Henrique Dias Alves, pelas sugestões e comentários em todas as etapas do trabalho e por todo conhecimento compartilhado sobre questões da indústria e da pesquisa ferroviária.Aos colegas que ainda estão ou já fizeram parte do Laboratório de Transformações de Fases (LTF-PMT-USP): Henrique, Lucas, Arthur, Viviam, Pedro, Giovani, Samuel, Jacy, por toda parceria e amizade e em especial ao Danny Centeno e ao Luiz Bauri pela ajuda na realização de alguns ensaios.

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Relationship between mesoscale structure and ductility of drawn high carbon steel wire

Gondo

Tanemura

Mitsui

et al. 2021

Materials Science and Engineering: A

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Three Distinct Deformation Behaviors of Cementite Lamellae in a Cold-Drawn Pearlitic Wire

Cited by 4 publications

References 22 publications

Evolution of Microstructure and Fe/Fe₃C Interface Structure in Cold‐Drawn Pearlitic Steel Wires

Evolution of Microstructure and Fe/Fe₃C Interface Structure in Cold‐Drawn Pearlitic Steel Wires

Relação entre a microestrutura e a resistência ao desgaste na pista de rolamento de rodas ferroviárias em suas múltiplas vidas.

Relationship between mesoscale structure and ductility of drawn high carbon steel wire

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Three Distinct Deformation Behaviors of Cementite Lamellae in a Cold-Drawn Pearlitic Wire

Cited by 4 publications

References 22 publications

Evolution of Microstructure and Fe/Fe3C Interface Structure in Cold‐Drawn Pearlitic Steel Wires

Evolution of Microstructure and Fe/Fe3C Interface Structure in Cold‐Drawn Pearlitic Steel Wires

Relação entre a microestrutura e a resistência ao desgaste na pista de rolamento de rodas ferroviárias em suas múltiplas vidas.

Relationship between mesoscale structure and ductility of drawn high carbon steel wire

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Product

Resources

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Evolution of Microstructure and Fe/Fe₃C Interface Structure in Cold‐Drawn Pearlitic Steel Wires

Evolution of Microstructure and Fe/Fe₃C Interface Structure in Cold‐Drawn Pearlitic Steel Wires