{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,5]],"date-time":"2026-06-05T03:37:22Z","timestamp":1780630642989,"version":"3.54.1"},"reference-count":32,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2011,6,6]],"date-time":"2011-06-06T00:00:00Z","timestamp":1307318400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Biomed Mater Res"],"published-print":{"date-parts":[[2011,8]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Hard coatings for articulating surfaces of total joint replacements may improve the overall wear resistance. However, any coating approach must take account of changes in corrosion behavior. This preliminary assessment analyzes the corrosion kinetics, impedance and mechanical\u2013electrochemical stability of 100 \u03bcm thick plasma sprayed chromium oxide (Cr<jats:sub>2<\/jats:sub>O<jats:sub>3<\/jats:sub>) coatings on bearing surfaces in comparison to the native alloy oxide films on Co\u2010Cr\u2010Mo and Ti\u20106Al\u20106V. Cyclic potentiodynamic polarization, electrochemical impedance spectroscopy, and mechanical abrasion under potentiostatic conditions were performed on coated and substrate surfaces in physiological saline. SEM analysis characterized the coating morphology. The results showed that the corrosion current density values of chromium oxide coatings (0.4\u20131.2 \u03bcA\/cm<jats:sup>2<\/jats:sup>) were of the same order of magnitude as Ti\u20106Al\u20104V alloy. Mechanical abrasion did not increase corrosion rates of chromium oxide coatings but did for uncoated Co\u2010Cr\u2010Mo and Ti\u20106Al\u20104V. The impedance response of chromium oxide coatings was very different than Co\u2010Cr\u2010Mo and Ti\u20106Al\u20104V native oxides characterized by a defected coating model. More of a frequency\u2010independent purely resistive response was seen in mid\u2010frequency range for the coatings (CPE<jats:sub>coat<\/jats:sub>: 40\u2013280 nF\/cm<jats:sup>2<\/jats:sup> (rad\/s)<jats:sup>1\u2010\u03b1<\/jats:sup>, \u03b1: 0.67\u20130.83) whereas a more capacitive character is seen for Co\u2010Cr\u2010Mo and Ti\u20106Al\u20104V (CPE<jats:sub>ox<\/jats:sub> around 20 \u03bcF\/cm<jats:sup>2<\/jats:sup> (rad\/s)<jats:sup>1\u2010\u03b1<\/jats:sup>, \u03b1 around 0.9). Pores, interparticle gaps and incomplete fusion typical for thermal spray coatings were present in these oxides which could have influenced corrosion resistance. The coating microstructure could have allowed some fluid penetration. Overall, these coatings appear to have suitable corrosion properties for wear surfaces. \u00a9 2011 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 2011.<\/jats:p>","DOI":"10.1002\/jbm.b.31861","type":"journal-article","created":{"date-parts":[[2011,6,6]],"date-time":"2011-06-06T18:26:09Z","timestamp":1307384769000},"page":"369-378","source":"Crossref","is-referenced-by-count":19,"title":["Electrochemical investigation of chromium oxide\u2010coated Ti\u20106Al\u20104V and Co\u2010Cr\u2010Mo alloy substrates"],"prefix":"10.1002","volume":"98B","author":[{"given":"Viswanathan","family":"Swaminathan","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Haitong","family":"Zeng","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daniel","family":"Lawrynowicz","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zongtao","family":"Zhang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jeremy L.","family":"Gilbert","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2011,6,6]]},"reference":[{"key":"e_1_2_6_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.triboint.2006.02.064"},{"key":"e_1_2_6_3_2","first-page":"64","article-title":"Titanium nitride ceramic film against polyethylene. 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