Effect of Isothermal Heat Treatment on Cyclic Life of Yitria Stabilized Zirconia and Gadolinium Zirconate Thermal Barrier Coating
Aluminum alloys; Chromium alloys; Gadolinium; Heat treatment; Isotherms; Plasma spraying; Thermal barrier coatings; Yttrium oxide; Cyclic lives; Five-layered; Functionally graded; Gadolinium zirconate; Isothermal heat treatments; NiCrAlY; Stabilized zirconia; Thermal; Thermal exposure; Yttria-stabil...
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Elsevier Ltd
2023
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my.uniten.dspace-241502023-05-29T14:56:06Z Effect of Isothermal Heat Treatment on Cyclic Life of Yitria Stabilized Zirconia and Gadolinium Zirconate Thermal Barrier Coating Johari A.D. Yunus S.M. Biyamin S.A. Rahman M.M. Hasini H. Manap A. 57199710877 56902397100 57204639647 55328831100 6507435998 57200642155 Aluminum alloys; Chromium alloys; Gadolinium; Heat treatment; Isotherms; Plasma spraying; Thermal barrier coatings; Yttrium oxide; Cyclic lives; Five-layered; Functionally graded; Gadolinium zirconate; Isothermal heat treatments; NiCrAlY; Stabilized zirconia; Thermal; Thermal exposure; Yttria-stabilized-zirconia; Yttria stabilized zirconia The effect of isothermal heat treatment on the thermal cyclic life of yttria stabilized zirconia (YSZ) and gadolinium zirconate (GZ) thermal barrier coatings (TBCs) have been investigated. The purpose of the isothermal heat treatment is to simulate thermal exposure on the TBC in the gas turbine. Duplex YSZ TBC with YSZ as a topcoat and NiCrAly as a bondcoat and five-layered GZ TBC with GZ as the topcoat (GZ / 50 wt.%GZ+50 wt.%YSZ / YSZ / 50 wt.%YSZ+50 wt.% NiCrAly / NiCrAlY) were plasma sprayed onto Nimonic 263 substrates to a total thickness of 900?m using F4-MB gun. The isothermal heat treatment was performed at a temperature of 1100�C for 100 hours with a heating rate of 250�C/hour in an air furnace. The thermal cyclic tests were performed with the following cycle in an air furnace: heat up from 1000�C to 1200�C within 1 hour, dwell at 1200�C for 5 minutes, water quench and oven dry. The cycle is repeated until 20% spallation of the coating. Result indicates that the isothermally heat treated five-layered GZ TBC has a better cyclic life than the duplex YSZ TBC and as-sprayed GZ TBC. � 2018 Elsevier Ltd. All rights reserved. Final 2023-05-29T06:56:05Z 2023-05-29T06:56:05Z 2018 Conference Paper 10.1016/j.matpr.2018.05.048 2-s2.0-85056537534 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85056537534&doi=10.1016%2fj.matpr.2018.05.048&partnerID=40&md5=1b5040e4a962f36f33ab3cdbf7a30d9e https://irepository.uniten.edu.my/handle/123456789/24150 5 8 16032 16041 Elsevier Ltd Scopus |
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Aluminum alloys; Chromium alloys; Gadolinium; Heat treatment; Isotherms; Plasma spraying; Thermal barrier coatings; Yttrium oxide; Cyclic lives; Five-layered; Functionally graded; Gadolinium zirconate; Isothermal heat treatments; NiCrAlY; Stabilized zirconia; Thermal; Thermal exposure; Yttria-stabilized-zirconia; Yttria stabilized zirconia |
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57199710877 |
| author_facet |
57199710877 Johari A.D. Yunus S.M. Biyamin S.A. Rahman M.M. Hasini H. Manap A. |
| format |
Conference Paper |
| author |
Johari A.D. Yunus S.M. Biyamin S.A. Rahman M.M. Hasini H. Manap A. |
| spellingShingle |
Johari A.D. Yunus S.M. Biyamin S.A. Rahman M.M. Hasini H. Manap A. Effect of Isothermal Heat Treatment on Cyclic Life of Yitria Stabilized Zirconia and Gadolinium Zirconate Thermal Barrier Coating |
| author_sort |
Johari A.D. |
| title |
Effect of Isothermal Heat Treatment on Cyclic Life of Yitria Stabilized Zirconia and Gadolinium Zirconate Thermal Barrier Coating |
| title_short |
Effect of Isothermal Heat Treatment on Cyclic Life of Yitria Stabilized Zirconia and Gadolinium Zirconate Thermal Barrier Coating |
| title_full |
Effect of Isothermal Heat Treatment on Cyclic Life of Yitria Stabilized Zirconia and Gadolinium Zirconate Thermal Barrier Coating |
| title_fullStr |
Effect of Isothermal Heat Treatment on Cyclic Life of Yitria Stabilized Zirconia and Gadolinium Zirconate Thermal Barrier Coating |
| title_full_unstemmed |
Effect of Isothermal Heat Treatment on Cyclic Life of Yitria Stabilized Zirconia and Gadolinium Zirconate Thermal Barrier Coating |
| title_sort |
effect of isothermal heat treatment on cyclic life of yitria stabilized zirconia and gadolinium zirconate thermal barrier coating |
| publisher |
Elsevier Ltd |
| publishDate |
2023 |
| _version_ |
1806428030303731712 |
| score |
13.222552 |