Stainless steel is being used in various industries such as automobile and aerospace for its cheap manufacturing cost and excellent mechanical properties. However, stainless steel failed to stably protect a specimen with a Cr2O3 protective layer at temperatures above 1000 ℃. Thus, improving the high temperature flame resistance of the specimen through additional surface coating was needed. In this study, multilayer coatings of YSZ and Al2O3 were performed on SUS 304 specimens using pack cementation coatings and thermal plasma spray. The multilayer coated specimen showed enhanced thermal properties due to the coated layers. The microstructures and phase stability are discussed together with flame conditions at 1350 ℃.

1. 서 론
 2. 실험 방법
 3. 결과 및 토론
  3.1 Al 고온 확산 코팅
  3.2 Al2O3와 YSZ 열차폐 코팅
  3.3 동적 화염 내삭마 실험
 4. 결 론
 Reference

• 최광수(한밭대학교 신소재공학과) | Kwangsu Choi
• 양원철(한밭대학교 신소재공학과) | Wonchul Yang
• 김영주(한밭대학교 신소재공학과) | Yeong joo Kim
• 박준식(한밭대학교 신소재공학과) | Joon Sik Park Corresponding author
• 김민규(한밭대학교 신소재공학과) | Min Kyu Kim