Structural Parameters and Strengthening Mechanisms in Cold-Drawn Pearlitic Steel Wires

Xiaodan Zhang, Andy Godfrey, Xiaoxu Huang, Niels Hansen

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Abstract

Pearlitic steel wires have a nanoscale structure and a strength which can reach 5 GPa. In order to investigate strengthening mechanisms, structural parameters including interlamellar spacing, dislocation density and cementite decomposition, have been analyzed by transmission electron microscopy and high resolution electron microscopy in wires cold drawn up to a strain of 3.7. Three strengthening mechanisms, namely boundary strengthening, dislocation strengthening and solid solution hardening have been analyzed and good agreement has been found between the measured flow stress and the value estimated based on an assumption of linear additivity of the three contributions.
Original languageEnglish
Title of host publicationAbstract Book
Number of pages1
Publication date2012
Publication statusPublished - 2012
Event141st TMS Annual Meeting & Exhibition: Ultrafine Grained Materials 7 Young Scientist - Orlando, United States
Duration: 14 Mar 201214 Mar 2012
Conference number: 141

Conference

Conference141st TMS Annual Meeting & Exhibition: Ultrafine Grained Materials 7 Young Scientist
Number141
CountryUnited States
CityOrlando
Period14/03/201214/03/2012

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