Inconel 738LC의 Pt Modified-pack Aluminizing 내산화 코팅의 산화저항성에 미치는 Palladium 완충층의 영향

한원규; 최재웅; 홍석준; 황길호; 강성군; W.K. Han; J.W. Choi; S.J. Hong; G.H. Hwang; S.G. Kang

Korean Journal of Materials Research, Vol.15, No.4, 233-239, April, 2005

DOI10.3740/MRSK.2005.15.4.233 Export Citation

Inconel 738LC의 Pt Modified-pack Aluminizing 내산화 코팅의 산화저항성에 미치는 Palladium 완충층의 영향

Effects of Palladium Buffer Layer on the Oxidation Resistance of Inconel 738LC Oxidation Resistant Coating Layer by Pt Modified-pack Aluminizing

한원규, 최재웅^†, 홍석준, 황길호, 강성군

한양대학교 재료공학부

W.K. Han, J.W. Choi^†, S.J. Hong, G.H. Hwang, and S.G. Kang

Division of Materials Science and Engineering, Hanyang University, Seoul, Korea, 133-791

E-mail:

In this study, the effects of Pd buffer layer on the oxidation resistance of Pt modified-pack aluminized Inconel 738LC, used for gas turbine, were investigated. Pd was electroplated on Inconel 738LC, and Pt was electroplated on the electroplated Pd surface. Thus, the thickness of electroplated Pt/Pd was [Math Processing Error] and the atomic ratio of Pt : Pd was about 6 : 4. After Pt/Pd electroplating, Inconel 738LC was pack aluminized to form the oxidation resistant layer. To investigate the oxidation resistance of Pt/Pd modified-pack aluminized Inconel 738LC, iso-thermal oxidation and cyclic oxidation were performed. The iso-thermal oxdation and the cyclic oxidation data indicated that the Pt/Pd modified-pack aluminized Inconel 738LC was more oxidation resistant than the Pt modified-pack aluminized Inconel 738LC. It was thought that the difference of thermal expansion coefficient between Inconel 738LC and Pt was lowered by the Pd buffer layer.

Keywords:Pt/Pd modified-pack aluminizing;Inconel 738LC;Pt/Pd electroplating;Oxidation resistance

[References]

Brooks CR, ASM, 139 (1984)
Kofstad P, Elsevier Applied Science, 389 (1988)
Sims CT, Stoloff NS, Hagel WC, Wiley-Interscience Publicarion, 306 (1987)
Xiang ZD, Burnell-Gray JS, Datta PK, J. Mater. Sci., 5673, 36 (2001)
Kim KY, Rhe Corrosion Science Society of Korea, 54 (1991)
Khanna AS, ASM International, 234 (2002)
Hocking MG, Vasantasree V, Sidky PS, Longman, Scientific & Technical, Essex, UK, p. 174 (1989) (1989)
Das DK, Singh V, Joshi SV, Metallurgical and Materials Transactions A, 2037, 31A (2000)
Massalski TB, Murray JL, Bennett LH, Baker H, ASM, 1863 (1986)
Li MJ, Sun XF, Guan HR, Jiang XX, Hu ZQ, Surface and coatings technology, 106-111, 167 (2003)

[Related Articles]

[1] Brooks CR, ASM, 139 (1984)

[2] Kofstad P, Elsevier Applied Science, 389 (1988)

[3] Sims CT, Stoloff NS, Hagel WC, Wiley-Interscience Publicarion, 306 (1987)

[4] Xiang ZD, Burnell-Gray JS, Datta PK, J. Mater. Sci., 5673, 36 (2001)

[5] Kim KY, Rhe Corrosion Science Society of Korea, 54 (1991)

[6] Khanna AS, ASM International, 234 (2002)

[7] Hocking MG, Vasantasree V, Sidky PS, Longman, Scientific & Technical, Essex, UK, p. 174 (1989) (1989)

[8] Das DK, Singh V, Joshi SV, Metallurgical and Materials Transactions A, 2037, 31A (2000)

[9] Massalski TB, Murray JL, Bennett LH, Baker H, ASM, 1863 (1986)

[10] Li MJ, Sun XF, Guan HR, Jiang XX, Hu ZQ, Surface and coatings technology, 106-111, 167 (2003)