DC Field | Value | Language |
---|---|---|
dc.contributor.author | Li, Y. J. | ko |
dc.contributor.author | Choi, Pyuck-Pa | ko |
dc.contributor.author | Goto, S. | ko |
dc.contributor.author | Borchers, C. | ko |
dc.contributor.author | Raabe, D. | ko |
dc.contributor.author | Kirchheim, R. | ko |
dc.date.accessioned | 2016-05-10T08:22:39Z | - |
dc.date.available | 2016-05-10T08:22:39Z | - |
dc.date.created | 2016-02-05 | - |
dc.date.created | 2016-02-05 | - |
dc.date.issued | 2012-05 | - |
dc.identifier.citation | ACTA MATERIALIA, v.60, no.9, pp.4005 - 4016 | - |
dc.identifier.issn | 1359-6454 | - |
dc.identifier.uri | http://hdl.handle.net/10203/207077 | - |
dc.description.abstract | Hypereutectoid steel wires with 6.35 GPa tensile strength after a cold-drawing true strain of 6.02 were annealed between 300 and 723 K. The ultrahigh strength remained upon annealing for 30 min up to a temperature of 423 K but dramatically decreased with further increasing temperature. The reduction of tensile strength mainly occurred within the first 2-3 min of annealing. Atom probe tomography and transmission electron microscopy reveal that the lamellar structure remains up to 523 K. After annealing at 673 K for 30 min, coarse hexagonal ferrite (sub)grains with spheroidized cementite, preferentially located at triple junctions, were observed in transverse cross-sections. C and Si segregated at the (sub)grain boundaries, while Mn and Cr enriched at the ferrite/cementite phase boundaries due to their low mobility in cementite. No evidence of recrystallization was found even after annealing at 723 K for 30 min. The stability of the tensile strength for low-temperature annealing (<473 K) and its dramatic drop upon high-temperature annealing (>473 K) are discussed based on the nanostructural observations. (C) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved | - |
dc.language | English | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.subject | ATOM-PROBE TOMOGRAPHY | - |
dc.subject | TRANSMISSION ELECTRON-MICROSCOPY | - |
dc.subject | VACANCY FORMATION ENERGIES | - |
dc.subject | REDUCING GRAIN-BOUNDARY | - |
dc.subject | CEMENTITE DISSOLUTION | - |
dc.subject | SOLUTE SEGREGATION | - |
dc.subject | SCALE MICROSTRUCTURES | - |
dc.subject | QUANTITATIVE-ANALYSIS | - |
dc.subject | THERMAL-STABILITY | - |
dc.subject | DISLOCATION LINE | - |
dc.title | Evolution of strength and microstructure during annealing of heavily cold-drawn 6.3 GPa hypereutectoid pearlitic steel wire | - |
dc.type | Article | - |
dc.identifier.wosid | 000304844400032 | - |
dc.identifier.scopusid | 2-s2.0-84860372977 | - |
dc.type.rims | ART | - |
dc.citation.volume | 60 | - |
dc.citation.issue | 9 | - |
dc.citation.beginningpage | 4005 | - |
dc.citation.endingpage | 4016 | - |
dc.citation.publicationname | ACTA MATERIALIA | - |
dc.identifier.doi | 10.1016/j.actamat.2012.03.006 | - |
dc.contributor.localauthor | Choi, Pyuck-Pa | - |
dc.contributor.nonIdAuthor | Li, Y. J. | - |
dc.contributor.nonIdAuthor | Goto, S. | - |
dc.contributor.nonIdAuthor | Borchers, C. | - |
dc.contributor.nonIdAuthor | Raabe, D. | - |
dc.contributor.nonIdAuthor | Kirchheim, R. | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Pearlitic steel | - |
dc.subject.keywordAuthor | Ultrahigh strength | - |
dc.subject.keywordAuthor | Atom probe tomography | - |
dc.subject.keywordAuthor | Annealing | - |
dc.subject.keywordAuthor | Grain boundary segregation | - |
dc.subject.keywordPlus | ATOM-PROBE TOMOGRAPHY | - |
dc.subject.keywordPlus | TRANSMISSION ELECTRON-MICROSCOPY | - |
dc.subject.keywordPlus | VACANCY FORMATION ENERGIES | - |
dc.subject.keywordPlus | REDUCING GRAIN-BOUNDARY | - |
dc.subject.keywordPlus | CEMENTITE DISSOLUTION | - |
dc.subject.keywordPlus | SOLUTE SEGREGATION | - |
dc.subject.keywordPlus | SCALE MICROSTRUCTURES | - |
dc.subject.keywordPlus | QUANTITATIVE-ANALYSIS | - |
dc.subject.keywordPlus | THERMAL-STABILITY | - |
dc.subject.keywordPlus | DISLOCATION LINE | - |
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