Article: Graded phase structure in the surface layer of NiTi alloy processed by surface severe plastic deformation

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TitleGraded phase structure in the surface layer of NiTi alloy processed by surface severe plastic deformation
AuthorsHu, T1 4
Chen, L1
Wu, SL4
Chu, CL3
Wang, LM1
Yeung, KWK2
Chu, PK4
KeywordsDeformation heating
Graded phase
Nanocrystalline
NiTi alloy
Surface mechanical attrition treatment
Issue Date2011
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/scriptamat
CitationScripta Materialia, 2011, v. 64 n. 11, p. 1011-1014 [How to Cite?]
DOI: http://dx.doi.org/10.1016/j.scriptamat.2011.02.008
AbstractThe graded phase structure and its evolution in the surface of NiTi alloy after surface mechanical attrition treatment are studied using transmission electron microscopy. The initial B2-B19′ phase transformation occurs at low strain level. As the deformation strain increases, the B19′ martensite phase transforms back to B2 phase giving rise to graded phases. Our study reveals that stress induced martensite transformation and deformation heating play important roles in the formation of this graded phase structure. © 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
ISSN1359-6462
2011 Impact Factor: 2.699
2011 SCImago Journal Rankings: 0.194
DOIhttp://dx.doi.org/10.1016/j.scriptamat.2011.02.008
ISI Accession Number IDWOS:000289607400004
Funding AgencyGrant Number
City University of Hong Kong7008009
Funding Information:

This work was financially supported by City University of Hong Kong Strategic Research Grant (SRG) No. 7008009. The authors acknowledge Dr. C.S. Wen at the Hong Kong Polytechnic University for SMAT experiments and Prof. J. Lu of City University of Hong Kong for valuable suggestions.

ReferencesReferences in Scopus
DC Field
Value
dc.contributor.authorHu, T
dc.contributor.authorChen, L
dc.contributor.authorWu, SL
dc.contributor.authorChu, CL
dc.contributor.authorWang, LM
dc.contributor.authorYeung, KWK
dc.contributor.authorChu, PK
dc.date.accessioned2011-09-23T05:51:36Z
dc.date.available2011-09-23T05:51:36Z
dc.date.issued2011
dc.description.abstractThe graded phase structure and its evolution in the surface of NiTi alloy after surface mechanical attrition treatment are studied using transmission electron microscopy. The initial B2-B19′ phase transformation occurs at low strain level. As the deformation strain increases, the B19′ martensite phase transforms back to B2 phase giving rise to graded phases. Our study reveals that stress induced martensite transformation and deformation heating play important roles in the formation of this graded phase structure. © 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
dc.description.natureLink_to_subscribed_fulltext
dc.identifier.citationScripta Materialia, 2011, v. 64 n. 11, p. 1011-1014 [How to Cite?]
DOI: http://dx.doi.org/10.1016/j.scriptamat.2011.02.008
dc.identifier.citeulike9185730
dc.identifier.doihttp://dx.doi.org/10.1016/j.scriptamat.2011.02.008
dc.identifier.epage1014
dc.identifier.hkuros192186
dc.identifier.isiWOS:000289607400004
Funding AgencyGrant Number
City University of Hong Kong7008009
Funding Information:

This work was financially supported by City University of Hong Kong Strategic Research Grant (SRG) No. 7008009. The authors acknowledge Dr. C.S. Wen at the Hong Kong Polytechnic University for SMAT experiments and Prof. J. Lu of City University of Hong Kong for valuable suggestions.

dc.identifier.issn1359-6462
2011 Impact Factor: 2.699
2011 SCImago Journal Rankings: 0.194
dc.identifier.issue11
dc.identifier.openurl
dc.identifier.scopuseid_2-s2.0-79953043600
dc.identifier.spage1011
dc.identifier.urihttp://hdl.handle.net/10722/139553
dc.identifier.volume64
dc.languageeng
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/scriptamat
dc.publisher.placeUnited Kingdom
dc.relation.ispartofScripta Materialia
dc.relation.referencesReferences in Scopus
dc.subjectDeformation heating
dc.subjectGraded phase
dc.subjectNanocrystalline
dc.subjectNiTi alloy
dc.subjectSurface mechanical attrition treatment
dc.titleGraded phase structure in the surface layer of NiTi alloy processed by surface severe plastic deformation
dc.typeArticle
Author Affiliations
  1. University Michigan Ann Arbor
  2. The University of Hong Kong
  3. Southeast University
  4. City University of Hong Kong