Journal of the Korean institute of surface engineering (한국표면공학회지)
- Volume 30 Issue 4
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- Pages.285-297
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- 1997
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- 1225-8024(pISSN)
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- 2288-8403(eISSN)
A Study on the high temperature oxidation behavior of zirconia plasma coatings on Haselloy X
Zirconala 용사된 Hastelloy X의 고온산화거동
Abstract
Finned segment, with which are lined inner wall of the turbine combustors, are subject to severe degradation when they are exposed to a hostile environmment at elevated temperature. To protect the finned segment from this environment and to maintain good mechanical properties of components at high temperature, they are preferred to be coated. The most governing factor for the durability of coatings used in the high temperature is the microstructure of coatings; these are splat from, distibution of microcacks, size and distribution of pores, thickness of coating layer, adhesion between coating layer, and oxidation of band coating. In this study, based on the evaluation of the imported finned segment, new finned segment segment was manufactured with optimum plasma spraying parameters, and their properties were examined. Using
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