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金属学报(英文版) 1997
LOCALISED DEPASSIVATION OF TITANIUM IN VITROKeywords: passivity,titanium,physiological solution,microelectrode Abstract: 1.IntroductionTitaniumiswidelyusedinbiomedicalapplicationsduetoitshighpassivitytohumanfluids,goodmechanicalpropertiesandexcellentbiocompatibility.Titaniumcorrosionresistancederivesfromthenaturalformationofaverystableandtenaciousoxidefilmoveritssurface.Thefilmreformsveryrapidlyifremovedormechanicallydamaged.Despitetheadherenceandreformingskillsexhibitedbythepajssivefilm,titaniumcorrosionproducts(e.g.intheformofsubmicronparticles)areoftenobservedintissuesadjacenttoimplantprosthesisll--6].Though…
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