Corrosion of titanium/cobalt-chromium alloy couples.
- 1 October 1983
- journal article
- research article
- Published by Wolters Kluwer Health in Journal of Bone and Joint Surgery
- Vol. 65 (8) , 1125-1126
- https://doi.org/10.2106/00004623-198365080-00012
Abstract
Because of the increasing use of dissimilar metal combinations in the human body, we undertook an in vitro study to determine the compatibility and tendency to accelerate crevice corrosion of galvanic couples of cobalt-chromium alloy with either titanium, titanium alloy, or stainless steel. We employed an electrochemical open-circuit potential measurement test and a potentiostatic passive film-corrosion measurement test. The results demonstrated that the chromium alloy/stainless-steel couple was unstable. The cobalt-chromium alloy/titanium alloy couple was stable. Clinical Relevance: Cobalt-chromium alloys should not be used in combination with stainless steel but may be used in combination with titanium alloy. All usage of metal couples should be approached with the utmost caution.Keywords
This publication has 1 reference indexed in Scilit:
- Evaluation of couple/crevice corrosion by prosthetic alloys under in vivo conditionsJournal of Biomedical Materials Research, 1978