Journal of the Korean Society for Heat Treatment (열처리공학회지)

The Korean Society for Heat Treatment (한국열처리공학회)
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High Temperature Oxidation Behavior of Plasma-sprayed Ti(Al,O)/$Al_2O_3$ Coatings on SS41 Steel

Ti(Al,O)/$Al_2O_3$ 플라즈마 코팅한 SS41의 고온산화 거동

  • Choi, G.S. (Dept. of Mechanical Engineering, Engineering College, Dongmyong University) ;
  • Woo, K.D. (Devision of Advanced Materials Engineeing & RCIT, Engineeing College, Chonbuk National University) ;
  • Lee, H.B. (Devision of Advanced Materials Engineeing & RCIT, Engineeing College, Chonbuk National University) ;
  • Jeon, J.Y. (Devision of Advanced Materials Engineeing & RCIT, Engineeing College, Chonbuk National University)
  • 최갑송 (동명대학교 기계공학과) ;
  • 우기도 (전북대학교 신소재공학과, 공업기술연구센터) ;
  • 이현범 (전북대학교 신소재공학과, 공업기술연구센터) ;
  • 전재열 (전북대학교 신소재공학과, 공업기술연구센터)
  • Received : 2007.08.05
  • Accepted : 2007.08.29
  • Published : 2007.09.30
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Abstract

High velocity oxy-fuel (HVOF) spraying was used to coat Ti(Al,O)/$Al_2O_3$ powder onto the SS41 steel plate. Macrostructure of the coated specimen has been investigated by scanning electron micrograph (SEM). High temperature oxidation behavior of the coated specimen and SS41 steel have been studied. From the results of SEM observation, Ti(Al,O)/$Al_2O_3$ powder was coated well onto the substrate SS41 steel. Porosity onto the coated layer was only 0.38%. The oxidation results showed that Ti(Al,O)/$Al_2O_3$ powder coated SS41 steel have improved little oxidation resistance at $900^{\circ}C$ in air, but improved remarkably oxidation resistance at $800^{\circ}C $ in air compare to the substrate SS41 steel.

Keywords

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