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Article: Anti-corrosion performance of oxidized and oxygen plasma-implanted NiTi alloys

TitleAnti-corrosion performance of oxidized and oxygen plasma-implanted NiTi alloys
Authors
KeywordsCorrosion resistance
NiTi shape memory alloys
Oxidation
Plasma immersion ion implantation
Issue Date2005
PublisherElsevier SA. The Journal's web site is located at http://www.elsevier.com/locate/msea
Citation
Materials Science And Engineering A, 2005, v. 390 n. 1-2, p. 444-451 How to Cite?
AbstractNickel-titanium shape memory alloys are useful orthopedic biomaterials on account of its super-elastic and shape memory properties. However, the problem associated with out-diffusion of harmful nickel ions in prolonged use inside the human body raises a critical safety concern. Titanium oxide films are deemed to be chemically inert and biocompatible and hence suitable to be the barrier layers to impede the leaching of Ni from the NiTi substrate to biological tissues and fluids. In the work reported in this paper, we compare the anti-corrosion efficacy of oxide films produced by atmospheric-pressure oxidation and oxygen plasma ion implantation. Our results show that the oxidized samples do not possess improved corrosion resistance and may even fare worse than the untreated samples. On the other hand, the plasma-implanted surfaces exhibit much improved corrosion resistance. Our work also shows that post-implantation annealing can further promote the anti-corrosion capability of the samples. © 2004 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/79323
ISSN
2015 Impact Factor: 2.647
2015 SCImago Journal Rankings: 1.803
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorPoon, RWYen_HK
dc.contributor.authorHo, JPYen_HK
dc.contributor.authorLiu, Xen_HK
dc.contributor.authorChung, CYen_HK
dc.contributor.authorChu, PKen_HK
dc.contributor.authorYeung, KWKen_HK
dc.contributor.authorLu, WWen_HK
dc.contributor.authorCheung, KMCen_HK
dc.date.accessioned2010-09-06T07:53:23Z-
dc.date.available2010-09-06T07:53:23Z-
dc.date.issued2005en_HK
dc.identifier.citationMaterials Science And Engineering A, 2005, v. 390 n. 1-2, p. 444-451en_HK
dc.identifier.issn0921-5093en_HK
dc.identifier.urihttp://hdl.handle.net/10722/79323-
dc.description.abstractNickel-titanium shape memory alloys are useful orthopedic biomaterials on account of its super-elastic and shape memory properties. However, the problem associated with out-diffusion of harmful nickel ions in prolonged use inside the human body raises a critical safety concern. Titanium oxide films are deemed to be chemically inert and biocompatible and hence suitable to be the barrier layers to impede the leaching of Ni from the NiTi substrate to biological tissues and fluids. In the work reported in this paper, we compare the anti-corrosion efficacy of oxide films produced by atmospheric-pressure oxidation and oxygen plasma ion implantation. Our results show that the oxidized samples do not possess improved corrosion resistance and may even fare worse than the untreated samples. On the other hand, the plasma-implanted surfaces exhibit much improved corrosion resistance. Our work also shows that post-implantation annealing can further promote the anti-corrosion capability of the samples. © 2004 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/mseaen_HK
dc.relation.ispartofMaterials Science and Engineering Aen_HK
dc.subjectCorrosion resistanceen_HK
dc.subjectNiTi shape memory alloysen_HK
dc.subjectOxidationen_HK
dc.subjectPlasma immersion ion implantationen_HK
dc.titleAnti-corrosion performance of oxidized and oxygen plasma-implanted NiTi alloysen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0921-5093&volume=390&issue=1-2&spage=444&epage=451&date=2005&atitle=Anti-corrosion+performance+of+oxidized+and+oxygen+plasma-implanted+NiTi+alloysen_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.authorityYeung, KWK=rp00309en_HK
dc.identifier.authorityLu, WW=rp00411en_HK
dc.identifier.authorityCheung, KMC=rp00387en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.msea.2004.08.061en_HK
dc.identifier.scopuseid_2-s2.0-10944268753en_HK
dc.identifier.hkuros104326en_HK
dc.identifier.hkuros192131-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-10944268753&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume390en_HK
dc.identifier.issue1-2en_HK
dc.identifier.spage444en_HK
dc.identifier.epage451en_HK
dc.identifier.isiWOS:000226372400056-
dc.publisher.placeSwitzerlanden_HK
dc.identifier.scopusauthoridPoon, RWY=34572161800en_HK
dc.identifier.scopusauthoridHo, JPY=7402650045en_HK
dc.identifier.scopusauthoridLiu, X=8603933800en_HK
dc.identifier.scopusauthoridChung, CY=8100842800en_HK
dc.identifier.scopusauthoridChu, PK=36040705700en_HK
dc.identifier.scopusauthoridYeung, KWK=13309584700en_HK
dc.identifier.scopusauthoridLu, WW=7404215221en_HK
dc.identifier.scopusauthoridCheung, KMC=7402406754en_HK

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