열충격에 의한 열차폐 코팅재의 기계적 거동 변화

장빈; 이기성; 김태우; 김철; Bin Jang; Kee Sung Lee; Tae Woo Kim; Chul Kim

Korean Journal of Materials Research, Vol.27, No.1, 25-31, January, 2017

DOI10.3740/MRSK.2017.27.1.25 Export Citation

열충격에 의한 열차폐 코팅재의 기계적 거동 변화

Changes in the Mechanical Behavior of Thermal Barrier Coatings Caused by Thermal Shock

장빈, 이기성^†, 김태우, 김철^†

국민대학교 기계시스템공학부

Bin Jang, Kee Sung Lee^†, Tae Woo Kim, and Chul Kim^†

School of Mechanical Systems Engineering, Kookmin University, Seoul 02702, Republic of Korea

E-mail:,

This study investigates changes in the mechanical behaviors, especially hardness and indentation load-displacement curves, of thermal barrier coatings (TBCs) brought about by thermal shock. The TBCs on the Nickel-based bondcoat/superalloy was prepared with diameters of 25.4 mm and 600 μm thickness. The results of thermal shock cycling test from 1100 °C of the highest temperature indicate that the thermal shock do not influence on the mechanical behavior, but a continuous decrease in porosity and increase in hardness were observed after 1200 thermal shock cycles; these changes are believed to be due to sintering of thermal barrier coating materials. The results that no degradation in the indentation load-displacement curves indicate that the coating shows good thermal shock resistance up to 1200 cycles at 1100 °C in air.

Keywords:superalloy;coatings;thermal shock;mechanical properties;indentation

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[1] Hada S, Tsukagoshi K, Masada J, Ito E, Mitsubishi Heavy Industries Technology Review, 49, 18 (2012)

[2] Kim MT, Jung YC, Seo D, Surf. Coat. Technol., 206, 4539 (2012)

[3] Padture NP, Gell M, Jordan EH, Science, 296, 280 (2002)

[4] Rudrapatria NS, Peterson BH, Greving D, J. Eng. Gas Turbines Power, 133, 042013 (2011)

[5] Evans AG, Mumm DR, Hutchinson JW, Meier GH, Pettit FS, Prog. Mater. Sci., 46(5), 505 (2001)

[6] Fleck NA, Cocks ACF, Lampenscnerf S, J. European Ceram. Soc., 34, 2687 (2014)

[7] Zhong X, Zhao H, Zhou X, Liu C, Wang L, Shao F, Yang K, Tao S, Ding C, J. Alloy. Compd., 593, 50 (2014)

[8] Zhao Y, Li D, Zhong X, Zhao H, Wang L, Shao F, Liu C, Tao S, Surf. Coat. Technol., 249, 48 (2014)

[9] Wu J, Padture NP, Gell M, Scr. Mater., 50, 1315 (2004)

[10] Xu Z, He L, Mu R, Zhong X, Zhang Y, Zhang J, Cao X, J. Alloy. Compd., 473, 509 (2009)

[11] Lee KS, Lee DH, Kim TW, J. Ceram. Soc. Jpn., 122, 668 (2014)

[12] Myoung SW, Kim JH, Lee WR, Jung YG, Lee KS, Paik U, Surf. Coat. Technol., 205, 1229 (2010)

[13] Lee KS, Shin IC, Kim BJ, Lim KH, J. Korean Ceram. Soc., 52, 429 (2015)

[14] Lu Z, Lee SS, Lee JH, Jung YG, Korean J. Mater. Res., 25(10), 571 (2015)

[15] Lee DH, Lee KS, J. Korean Ceram. Soc., 48, 396 (2011)

[16] Lawn BR, J. Am. Ceram. Soc., 81, 1977 (1998)

[17] Lee KS, Jung KI, Heo YS, Kim TW, Jung YG, Paik U, J. Alloy. Compd., 507, 448 (2010)

[18] Heo YS, Lee DH, Jung YG, Lee KS, J. Nanomater, Article ID 874190, 2015, 9 (2015)

[19] Chen C, Guo H, Gong S, Zhao X, Xiao P, Ceram. Int., 39, 5093 (2013)

[20] Oliver WC, Pharr GM, J. Mater. Res., 7, 1564 (1992)

[21] Fischer-Cripps AC, Vacuum, 58, 569 (2000)

[22] Lee KS, Jung YG, Peterson IM, Lawn BR, Kim DK, Lee SK, J. Am. Ceram. Soc., 83(9), 2255 (2000)