Co-Cr alloy의 전해연마에 따른 부식의 영향Effect of electropolishing process on corrosion resistance of Co-Cr alloy
- Other Titles
- Effect of electropolishing process on corrosion resistance of Co-Cr alloy
- Authors
- 박제민; 김완철
- Issue Date
- 2010
- Publisher
- 한국표면공학회
- Keywords
- Electropilishing; L605; Corrosion; Surface roughness; Electropilishing; L605; Corrosion; Surface roughness
- Citation
- 한국표면공학회지, v.43, no.4, pp.199 - 204
- Journal Title
- 한국표면공학회지
- Volume
- 43
- Number
- 4
- Start Page
- 199
- End Page
- 204
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/21248
- ISSN
- 1225-8024
- Abstract
- The Co-Cr alloys have clinical histories as dental and orthopaedic implants, and recently as cardiovascular stent applications because they exhibit a high elastic modulus and radiopacity. In order to improve their mechanical and corrosion resistance, electropolishing is employed as the final process. Electropolishing, an anodic dissolution process in the transpassive state, is sensitively affected by process conditions such as current density, machining time, and electrode gap. In this study, the effect of the electropolishing conditions on surface roughness and corrosion resistance is investigated for Co-Cr alloys (L605). The most smooth surface is obtained when electropolishing is performed at 15-20V for 15-30 sec with a electrode gap of 3.5mm. It is found out that electropolishing reduces corrosion rate about one-tenth as much.
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Collections - College of Science and Technology > Major of Metallurgical Engineering > 1. Journal Articles
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