File Download
  Links for fulltext
     (May Require Subscription)
Supplementary

Article: A universal relation for the stress dependence of activation energy for slip in body-centered cubic crystals

TitleA universal relation for the stress dependence of activation energy for slip in body-centered cubic crystals
Authors
KeywordsPhysics engineering
Issue Date1999
PublisherAmerican Institute of Physics. The Journal's web site is located at http://jap.aip.org/jap/staff.jsp
Citation
Journal Of Applied Physics, 1999, v. 86 n. 3, p. 1236-1244 How to Cite?
AbstractBy analyzing experimental data in the literature, the activation energy H for slip in body-centered cubic metals is found to approximately obey the simple relation H≈0.1 μb3(1 - t)2, where t is the applied stress normalized by the zero-temperature Peierls stress, μ is the 〈111〉 shear modulus, and b the 1/2〈111〉 Burgers vector. Such universal relation is explained by analyzing the activation processes of kink-pair generation and expansion along threefold screw dislocations using the generalized Peierls-Nabarro model [A. H. W. Ngan, J. Mech. Phys. Solids 45, 903 (1997)]. The model also predicts qualitatively the general form of the orientation dependence of Peierls stress at zero temperature. © 1999 American Institute of Physics.
Persistent Identifierhttp://hdl.handle.net/10722/43028
ISSN
2014 Impact Factor: 2.183
2014 SCImago Journal Rankings: 0.912
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorNgan, AHWen_HK
dc.contributor.authorZhang, HFen_HK
dc.date.accessioned2007-03-23T04:37:12Z-
dc.date.available2007-03-23T04:37:12Z-
dc.date.issued1999en_HK
dc.identifier.citationJournal Of Applied Physics, 1999, v. 86 n. 3, p. 1236-1244en_HK
dc.identifier.issn0021-8979en_HK
dc.identifier.urihttp://hdl.handle.net/10722/43028-
dc.description.abstractBy analyzing experimental data in the literature, the activation energy H for slip in body-centered cubic metals is found to approximately obey the simple relation H≈0.1 μb3(1 - t)2, where t is the applied stress normalized by the zero-temperature Peierls stress, μ is the 〈111〉 shear modulus, and b the 1/2〈111〉 Burgers vector. Such universal relation is explained by analyzing the activation processes of kink-pair generation and expansion along threefold screw dislocations using the generalized Peierls-Nabarro model [A. H. W. Ngan, J. Mech. Phys. Solids 45, 903 (1997)]. The model also predicts qualitatively the general form of the orientation dependence of Peierls stress at zero temperature. © 1999 American Institute of Physics.en_HK
dc.format.extent137737 bytes-
dc.format.extent40924 bytes-
dc.format.extent310 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypetext/plain-
dc.languageengen_HK
dc.publisherAmerican Institute of Physics. The Journal's web site is located at http://jap.aip.org/jap/staff.jspen_HK
dc.relation.ispartofJournal of Applied Physicsen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectPhysics engineeringen_HK
dc.titleA universal relation for the stress dependence of activation energy for slip in body-centered cubic crystalsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0021-8979&volume=86&issue=3&spage=1236&epage=1244&date=1999&atitle=A+universal+relation+for+the+stress+dependence+of+activation+energy+for+slip+in+body-centered+cubic+crystalsen_HK
dc.identifier.emailNgan, AHW:hwngan@hkucc.hku.hken_HK
dc.identifier.authorityNgan, AHW=rp00225en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1063/1.370877en_HK
dc.identifier.scopuseid_2-s2.0-0006205829en_HK
dc.identifier.hkuros48987-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0006205829&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume86en_HK
dc.identifier.issue3en_HK
dc.identifier.spage1236en_HK
dc.identifier.epage1244en_HK
dc.identifier.isiWOS:000081458800012-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridNgan, AHW=7006827202en_HK
dc.identifier.scopusauthoridZhang, HF=7409198080en_HK

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats