Volume 3, Issue 3, September 2018, Page: 60-64
Evolution of Cementite in Hypoeutectoid Steel Wire during Cold Work Hardening in Rolling Process
Wang Bojian, School of Metallurgy Engineering, Xi'an University of Architecture and Technology, Xi'an, China
Ge Xiaochen, Engineering Practice and Training Center, Northwestern Polytechnic University, Xi'an, China
Xiao Qiang, School of Metallurgy Engineering, Xi'an University of Architecture and Technology, Xi'an, China
Liu Shifeng, School of Metallurgy Engineering, Xi'an University of Architecture and Technology, Xi'an, China
Received: May 28, 2018;       Accepted: Jul. 5, 2018;       Published: Oct. 27, 2018
DOI: 10.11648/j.ijmpem.20180303.12      View  173      Downloads  13
Abstract
Using Φ1.80mm steel wire drawn from Φ6.5mm steel wire was drawn to Φ1.80mm as raw material. Using cold three-rolling process, we got flat wire which size was 0.75mm x 3.17mm by cold three-pass rolling process. Researches shown that 60 steel wire has good plastic deformation ability during cold work processing. The tensile strength and micro-hardness shows linear growth characteristics in the early first stage of cold rolling, then they have exponential growth characteristics in later rollings. That is because in the first rolling process the cementite eventually dissolved in large quantities as the ferrite is turned, deformed, refined and broken. The solution mechanism of cementite is the Gibbs-Thomson effect, i. e. interface energy mechanism.
Keywords
Rolling, Hypoeutectoidsteel, Cementite, Dissolution
To cite this article
Wang Bojian, Ge Xiaochen, Xiao Qiang, Liu Shifeng, Evolution of Cementite in Hypoeutectoid Steel Wire during Cold Work Hardening in Rolling Process, International Journal of Mineral Processing and Extractive Metallurgy. Vol. 3, No. 3, 2018, pp. 60-64. doi: 10.11648/j.ijmpem.20180303.12
Copyright
Copyright © 2018 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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