PSI - Issue 37

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Procedia Structural Integrity 37 (2022) 1007–1012

ICSI 2021 The 4th International Conference on Structural Integrity Micro- and nano-structural integrity of cold drawn pearlitic steels: drawing-induced evolution of intracolonial micro-defects ICSI 2021 The 4th International Conference on Structural Integrity Micro- and nano-structural integrity of cold drawn pearlitic steels: drawing-induced evolution of intracolonial micro-defects

Jesús Toribio*, Francisco-Javier Ayaso, Rocío Rodríguez Fracture & Structural Integrity Research Group (FSIRG), University of Salamanca (USAL) E.P.S., Campus Viriato, Avda. Requejo 33, 49022 Zamora, Spain Jesús Toribio*, Francisco-Javier Ayaso, Rocío Rodríguez Fracture & Structural Integrity Research Group (FSIRG), University of alamanca (USAL) E.P.S., Campus Viriato, Avda. Requejo 33, 49022 Zamora, Spain

© 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of Pedro Miguel Guimaraes Pires Moreira © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of Pedro Miguel Guimaraes Pires Moreira Abstract This article deals with the analysis of the evolution of intracolonial micr -de ects produced in pearlit c te wires as a direct result of the cold drawing p ocess. T e study was carri d out from the observ tio of t microstructure of wires be onging to the different steps of a real cold drawing chain, formed by seven stages of cold drawing. The evolution of int acolonial micro-defects can be key in the ubsequent fracture process of the cold drawn pearlitic steel. The analysis of these micro-defects has been carried out after the observation of micrographs obtained by scanning electron microscopy (SEM). © 2022 The Authors. Published by ELSEVIER B.V. This is an open acc s article under the CC BY-NC-ND lic nse (https://c eativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of Pedro Miguel Guimaraes Pires Moreira Abstract This article deals with the analysis of the evolution of intracolonial micro-defects produced in pearlitic steel wires as a direct result of the cold drawing process. The study was carried out from the observation of the microstructure of wires belonging to the different steps of a real cold drawing chain, formed by seven stages of cold drawing. The evolution of intracolonial micro-defects can be key in the subsequent fracture process of the cold drawn pearlitic steel. The analysis of these micro-defects has been carried out after the observation of micrographs obtained by scanning electron microscopy (SEM). 1. Introduction Cold drawing of pearlitic steel wires produces microstructural changes in the material such as the reorientation of the pearlite colonies and the lamellae in the direction of the longitudinal axis of the wire, as well as a progressive decrease of interlaminar spacing of pearlite and an increase of pearlitic colony slenderness (Toribio and Ovejero, 1997; 1998a; 1998b; 1998c). 1. Introduction Cold drawing of pearlitic steel wires produces micr structural changes in the mat rial such as the reorientation of the pearlite colonies and the lamellae in the directio of th longitudinal axis of the wir , as well as progr ssive decrease of interlaminar spacing of pearlite and an increase of pearlitic colony slenderness (Toribio and Ovejero, 1997; 1998a; 1998b; 1998c). Keywords : pearlitic steel; cold drawing; intracolonial micro-defects. Keywords : pearlitic steel; cold drawing; intracolonial micro-defects.

* Corresponding author. Tel.: +34-677566723; fax: +34-980545002. E-mail address: toribio@usal.es * Corresponding author. Tel.: +34-677566723; fax: +34-980545002. E-mail address: toribio@usal.es

2452-3216 © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of Pedro Miguel Guimaraes Pires Moreira 2452-3216 © 2022 The Authors. Published by ELSEVIER B.V. This is an ope acc s article under the CC BY-NC-ND lic nse (https://c eativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of Pedro Miguel Guimaraes Pires Moreira

2452-3216 © 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of Pedro Miguel Guimaraes Pires Moreira 10.1016/j.prostr.2022.02.038