File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Making ultrastrong steel tough by grain-boundary delamination

TitleMaking ultrastrong steel tough by grain-boundary delamination
Authors
Keywordschemical composition
chemical structure
concentration (parameter)
delamination
density
Issue Date2020
PublisherAmerican Association for the Advancement of Science. The Journal's web site is located at http://sciencemag.org
Citation
Science, 2020, v. 368 n. 6497, p. 1347-1352 How to Cite?
AbstractDeveloping ultrahigh-strength steels that are ductile, fracture resistant, and cost effective would be attractive for a variety of structural applications. We show that improved fracture resistance in a steel with an ultrahigh yield strength of nearly 2 gigapascals can be achieved by activating delamination toughening coupled with transformation-induced plasticity. Delamination toughening associated with intensive but controlled cracking at manganese-enriched prior-austenite grain boundaries normal to the primary fracture surface dramatically improves the overall fracture resistance. As a result, fracture under plane-strain conditions is automatically transformed into a series of fracture processes in “parallel” plane-stress conditions through the thickness. The present “high-strength induced multidelamination” strategy offers a different pathway to develop engineering materials with ultrahigh strength and superior toughness at economical materials cost.
Persistent Identifierhttp://hdl.handle.net/10722/289746
ISSN
2023 Impact Factor: 44.7
2023 SCImago Journal Rankings: 11.902
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorLIU, L-
dc.contributor.authorYu, Q-
dc.contributor.authorWANG, Z-
dc.contributor.authorEll, J-
dc.contributor.authorHuang, MX-
dc.contributor.authorRitchie, RO-
dc.date.accessioned2020-10-22T08:16:53Z-
dc.date.available2020-10-22T08:16:53Z-
dc.date.issued2020-
dc.identifier.citationScience, 2020, v. 368 n. 6497, p. 1347-1352-
dc.identifier.issn0036-8075-
dc.identifier.urihttp://hdl.handle.net/10722/289746-
dc.description.abstractDeveloping ultrahigh-strength steels that are ductile, fracture resistant, and cost effective would be attractive for a variety of structural applications. We show that improved fracture resistance in a steel with an ultrahigh yield strength of nearly 2 gigapascals can be achieved by activating delamination toughening coupled with transformation-induced plasticity. Delamination toughening associated with intensive but controlled cracking at manganese-enriched prior-austenite grain boundaries normal to the primary fracture surface dramatically improves the overall fracture resistance. As a result, fracture under plane-strain conditions is automatically transformed into a series of fracture processes in “parallel” plane-stress conditions through the thickness. The present “high-strength induced multidelamination” strategy offers a different pathway to develop engineering materials with ultrahigh strength and superior toughness at economical materials cost.-
dc.languageeng-
dc.publisherAmerican Association for the Advancement of Science. The Journal's web site is located at http://sciencemag.org-
dc.relation.ispartofScience-
dc.rightsScience. Copyright © American Association for the Advancement of Science.-
dc.rightsThis is the author’s version of the work. It is posted here by permission of the AAAS for personal use, not for redistribution. The definitive version was published in [Science Journal Title] on [Volume number and date], DOI: [insert DOI number].-
dc.subjectchemical composition-
dc.subjectchemical structure-
dc.subjectconcentration (parameter)-
dc.subjectdelamination-
dc.subjectdensity-
dc.titleMaking ultrastrong steel tough by grain-boundary delamination-
dc.typeArticle-
dc.identifier.emailHuang, MX: mxhuang@hku.hk-
dc.identifier.authorityHuang, MX=rp01418-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1126/science.aba9413-
dc.identifier.pmid32381592-
dc.identifier.scopuseid_2-s2.0-85086694077-
dc.identifier.hkuros317270-
dc.identifier.volume368-
dc.identifier.issue6497-
dc.identifier.spage1347-
dc.identifier.epage1352-
dc.identifier.isiWOS:000544017600043-
dc.publisher.placeUnited States-
dc.identifier.issnl0036-8075-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats