Preparation and Thermal Shock Performance of ZrO<sub>2</sub>/NiCrAlY Thermal Barrier Coating

WANG Lingshuang; CAO Guojian; TANG Guangze; XU Wanjiao; MA Xinxin

doi:10.11868/j.issn.1005-5053.2016.000081

Journal of Aeronautical Materials (Apr 2017)

Preparation and Thermal Shock Performance of ZrO<sub>2</sub>/NiCrAlY Thermal Barrier Coating

WANG Lingshuang,
CAO Guojian,
TANG Guangze,
XU Wanjiao,
MA Xinxin

Affiliations

WANG Lingshuang: School of Materials Science & Engineering, Harbin University of Science and Technology, Harbin 150080, China
CAO Guojian: School of Materials Science & Engineering, Harbin University of Science and Technology, Harbin 150080, China
TANG Guangze: The National Key Laboratory for Precision Hot Forming of Metals, Harbin Institute of Technology, Harbin 150001, China
XU Wanjiao: School of Materials Science & Engineering, Harbin University of Science and Technology, Harbin 150080, China
MA Xinxin: Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China

DOI: https://doi.org/10.11868/j.issn.1005-5053.2016.000081
Journal volume & issue: Vol. 37, no. 2
pp. 44 – 48

Abstract

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Electric spark deposition (ESD) combining with micro-arc oxidation (MAO) were employed to fabricate ZrO2/NiCrAlY thermal barrier coating (TBC) on GH4169 substrate. Firstly, a NiCrAlY coating with thickness of 250 μm was deposited on GH4169 substrate by ESD. Secondly, a Zr coating with thickness of 150 μm was deposited on NiCrAlY coating followed by MAO of the Zr coating. The thermal shock performances of the coatings under different temperatures were investigated. The results indicate that the thermal cycle numbers of the coatings at 750℃, 850 ℃ and 950℃ are 51, 32, and 19 respectively.

Published in Journal of Aeronautical Materials

ISSN: 1005-5053 (Print)
Publisher: Journal of Aeronautical Materials
Country of publisher: China
LCC subjects: Technology: Motor vehicles. Aeronautics. Astronautics
Website: http://jam.biam.ac.cn/indexen.htm

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