Tribological characteristics of ceramic conversion treated NiTi shape memory alloy

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NiTi shape memory alloys are very attractive for medical implants and devices ( such as orthopaedic and orthodontic implants) and various actuators. However, wear is a major concern for such applications and a novel surface engineering process, ceramic conversion treatment, has recently been developed to address this problem. In this study, the tribological characteristics of ceramic conversion treated NiTi alloy have been systematically investigated under dry unidirectional wear, reciprocating-corrosion wear and fretting-corrosion wear condition. Based on the experimental results, the wear behaviour under different conditions is compared and wear mechanisms involved are discussed.


Original languageEnglish
Pages (from-to)5452-5462
Number of pages11
JournalJournal of Physics D: Applied Physics
Issue number18
Early online date30 Aug 2007
Publication statusPublished - 21 Sep 2007