欢迎登录材料期刊网

材料期刊网

高级检索

  • 论文(1)
  • 图书()
  • 专利()
  • 新闻()

INFLUENCE OF DEFECTS ON PROPERTIES OF SPUTTERED CoCrAIY COATINGS

WANG Fuhui , LOU Hanyi , WU Weitao Corrosion Science Laboratory , Institute of Corrosion and Protection of Metals , Academia Sinica , Shenyang , China research assistant , Institute of Corrosion and Protection of Metats , Academia Sinica , Shenyang 110015 , China

金属学报(英文版)

The influence of defects on the oxidation, hot corrosion and thermal shock properties of sputtered Co-30Cr-6Al-0.5Y coatings was investigated.The results indicated that the nodular defects reduced the properties of the coatings.For the oxidation,the nodular defects resulted in the severe internal oxidation of aluminium,as a result,the pure alu mina scale could not form at very high temperature such as at 1 100℃.For the hot corrosion,the nodular defects served as the short-path for the diffusion of sulfur into the coating and the substrate,and caused the sulfidation,of the specimen.Moreover,the nodular defects became the crack source during the thermal shock test and decreased the thermal shock resistance.

关键词: CoCrAlY coating , null , null , null , null

出版年份

刊物分类

相关作者

相关热词