表面技术2017，Vol.46Issue(6)：192-196,5.DOI:10.16490/j.cnki.issn.1001-3660.2017.06.030
温度对纯Cr涂层表面形貌和抗腐蚀性能的影响
Effect of Temperature on Morphology and Corrosion Resistance of Pure Cr Coating
摘要
Abstract
The work aims to explore the effect of temperature on corrosion resistance and surface morphology of pure Cr coat-ing. The Cr coating was prepared on the surface of zirconium alloy by means of arc current plating process. Scanning electron mi-croscopy (SEM) and Image J image processing software were used to analyze surface morphology of pure Cr coating, count and analyze size and number of large particles on the surface. X-ray diffractometer (XRD) was applied to analyze phase structure of the coating. The effect of temperature on film adhesion and corrosion resistance of the Cr coating was analyzed using scratch tester and CS electrochemical workstation. The number and average size of large particles on the coating surface were the maximum at 380℃, and the minimum at 420℃; the both increased gradually as the temperature rose to 450℃, 500℃. With the rise of temper- ature, growth mode of the Cr coating changed from preferred growth on (110) crystal plane to that on (200) crystal plane. The aver-age crystal size firstly decreased and then increased as the temperature varied. Varying pattern of coating adhesion and corrosion re-sistance with increasing temperature was contrary to that of the large particles, which firstly increased and then decreased. The number and average size of large particles on the surface of the coating are the maximum at 420℃, the adhesion and corrosion re-sistance are high, the organizational structure is dense, grains are fine and surface is smooth.关键词
温度/多弧离子镀/抗腐蚀性能/Cr涂层Key words
temperature/multi-arc ion plating/corrosion resistance/Cr coating分类
矿业与冶金引用本文复制引用
王浩然,邱长军,曾小安,张文,王晓婧,刘艳红,李怀林..温度对纯Cr涂层表面形貌和抗腐蚀性能的影响[J].表面技术,2017,46(6):192-196,5.基金项目
国家科技重大专项子课题项目(2015ZX06004001-002) （2015ZX06004001-002）
湖南省重点学科建设项目([2011]76) （[2011]76）
特殊环境下装备安全服役技术-湖南省高校重点实验室(湘财教指[2014]85号) National Science and Technology Major Project Sub-project (2015ZX06004001-002) （湘财教指[2014]85号）
Key Construction Projects of Hunan Province ([2011]76) （[2011]76）
Equipment Safety Service Technology in Special Environment-Key Laboratory of Universities of Hunan Province ([2014]85) （[2014]85）
