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Article: In vitro corrosion behavior of TiN layer produced on orthopedic nickel-titanium shape memory alloy by nitrogen plasma immersion ion implantation using different frequencies

TitleIn vitro corrosion behavior of TiN layer produced on orthopedic nickel-titanium shape memory alloy by nitrogen plasma immersion ion implantation using different frequencies
Authors
KeywordsCorrosion resistance
Frequency
NiTi
Plasma immersion ion implantation
Issue Date2008
PublisherElsevier SA. The Journal's web site is located at http://www.elsevier.com/locate/surfcoat
Citation
Surface And Coatings Technology, 2008, v. 202 n. 11, p. 2463-2466 How to Cite?
AbstractIn the present work, the NiTi surface was modified by nitrogen plasma immersion ion implantation (PIII) in an effort to improve the corrosion resistance and mitigate nickel release from the materials. The implanted nitrogen depths and thicknesses of the surface TiN barrier layers were varied by changing the pulsing frequencies during PIII. In order to determine the optimal parameters including the pulsing frequencies, electrochemical tests including open circuit potential (OCP) measurements and potentiodynamic polarization tests were conducted on the untreated and N-implanted NiTi in simulated body fluids (SBF). Our results reveal that the nitride layer produced using a frequency of 50 Hz has the best stability under the OCP conditions and the TiN layer produced using 200 Hz has the highest potentiodynamic stability after immersion in SBF for a long time. The observation can be correlated to the temperature during PIII and the thickness of TiN layer. The TiN layer on the NiTi surface favors deposition of Ca-P composites thereby compensating for the instability of the TiN layer produced at a higher frequency. © 2007 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/79496
ISSN
2015 Impact Factor: 2.139
2015 SCImago Journal Rankings: 0.872
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLiu, XMen_HK
dc.contributor.authorWu, SLen_HK
dc.contributor.authorChu, PKen_HK
dc.contributor.authorChung, CYen_HK
dc.contributor.authorChu, CLen_HK
dc.contributor.authorChan, YLen_HK
dc.contributor.authorYeung, KWKen_HK
dc.contributor.authorLu, WWen_HK
dc.contributor.authorCheung, KMCen_HK
dc.contributor.authorLuk, KDKen_HK
dc.date.accessioned2010-09-06T07:55:20Z-
dc.date.available2010-09-06T07:55:20Z-
dc.date.issued2008en_HK
dc.identifier.citationSurface And Coatings Technology, 2008, v. 202 n. 11, p. 2463-2466en_HK
dc.identifier.issn0257-8972en_HK
dc.identifier.urihttp://hdl.handle.net/10722/79496-
dc.description.abstractIn the present work, the NiTi surface was modified by nitrogen plasma immersion ion implantation (PIII) in an effort to improve the corrosion resistance and mitigate nickel release from the materials. The implanted nitrogen depths and thicknesses of the surface TiN barrier layers were varied by changing the pulsing frequencies during PIII. In order to determine the optimal parameters including the pulsing frequencies, electrochemical tests including open circuit potential (OCP) measurements and potentiodynamic polarization tests were conducted on the untreated and N-implanted NiTi in simulated body fluids (SBF). Our results reveal that the nitride layer produced using a frequency of 50 Hz has the best stability under the OCP conditions and the TiN layer produced using 200 Hz has the highest potentiodynamic stability after immersion in SBF for a long time. The observation can be correlated to the temperature during PIII and the thickness of TiN layer. The TiN layer on the NiTi surface favors deposition of Ca-P composites thereby compensating for the instability of the TiN layer produced at a higher frequency. © 2007 Elsevier B.V. All rights reserved.en_HK
dc.languageengen_HK
dc.publisherElsevier SA. The Journal's web site is located at http://www.elsevier.com/locate/surfcoaten_HK
dc.relation.ispartofSurface and Coatings Technologyen_HK
dc.subjectCorrosion resistanceen_HK
dc.subjectFrequencyen_HK
dc.subjectNiTien_HK
dc.subjectPlasma immersion ion implantationen_HK
dc.titleIn vitro corrosion behavior of TiN layer produced on orthopedic nickel-titanium shape memory alloy by nitrogen plasma immersion ion implantation using different frequenciesen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0257-8972&volume=202&spage=2463&epage=1466&date=2008&atitle=In+vitro+corrosion+behavior+of+TiN+layer+produced+on+orthopedic+nickel-titanium+shape+memory+alloy+by+nitrogen+plasma+immersion+ion+implantation+using+different+frequenciesen_HK
dc.identifier.emailYeung, KWK:wkkyeung@hkucc.hku.hken_HK
dc.identifier.emailLu, WW:wwlu@hku.hken_HK
dc.identifier.emailCheung, KMC:cheungmc@hku.hken_HK
dc.identifier.emailLuk, KDK:hcm21000@hku.hken_HK
dc.identifier.authorityYeung, KWK=rp00309en_HK
dc.identifier.authorityLu, WW=rp00411en_HK
dc.identifier.authorityCheung, KMC=rp00387en_HK
dc.identifier.authorityLuk, KDK=rp00333en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.surfcoat.2007.08.017en_HK
dc.identifier.scopuseid_2-s2.0-38949091088en_HK
dc.identifier.hkuros145982en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-38949091088&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume202en_HK
dc.identifier.issue11en_HK
dc.identifier.spage2463en_HK
dc.identifier.epage2466en_HK
dc.identifier.isiWOS:000253930900048-
dc.publisher.placeSwitzerlanden_HK
dc.identifier.scopusauthoridLiu, XM=8408205200en_HK
dc.identifier.scopusauthoridWu, SL=15125218800en_HK
dc.identifier.scopusauthoridChu, PK=36040705700en_HK
dc.identifier.scopusauthoridChung, CY=8100842800en_HK
dc.identifier.scopusauthoridChu, CL=7404345713en_HK
dc.identifier.scopusauthoridChan, YL=8250546500en_HK
dc.identifier.scopusauthoridYeung, KWK=13309584700en_HK
dc.identifier.scopusauthoridLu, WW=7404215221en_HK
dc.identifier.scopusauthoridCheung, KMC=7402406754en_HK
dc.identifier.scopusauthoridLuk, KDK=7201921573en_HK

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