Cyclic-Oxidation Behavior of Multilayered Pt/Ru-Modified Aluminide Coating
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2011年第3期
论文作者：Hideyuki Murakami
文章页码：280 - 288
摘 要：Multilayered Pt/Ru modified aluminide coating for thermal barrier coating（TBC） systems has been investigated.2 μm Pt+2 μm Ru+2 μm Pt was first deposited on nickel-base superalloy DZ125 by electrodeposition,and then the coating was treated by annealing and a conventional pack-cementation aluminizing process.The cyclic oxidation tests were carried out at 1423 K in air.It was found that the thermal cyclic oxidation resistance of Pt/Ru-modified aluminide coating was comparable to that of Pt-modified aluminide coating,which was much better than simply aluminized DZ125.The addition of Ru to Pt-modified aluminide coating increased the resistance to rumpling.The microstructures and phase constitutions of the coating before and after oxidation were investigated.
Hideyuki Murakami
Coating Materials Group,Hybrid Materials Center,National Institute for Materials Science(NIMS)
摘 要：Multilayered Pt/Ru modified aluminide coating for thermal barrier coating（TBC） systems has been investigated.2 μm Pt+2 μm Ru+2 μm Pt was first deposited on nickel-base superalloy DZ125 by electrodeposition,and then the coating was treated by annealing and a conventional pack-cementation aluminizing process.The cyclic oxidation tests were carried out at 1423 K in air.It was found that the thermal cyclic oxidation resistance of Pt/Ru-modified aluminide coating was comparable to that of Pt-modified aluminide coating,which was much better than simply aluminized DZ125.The addition of Ru to Pt-modified aluminide coating increased the resistance to rumpling.The microstructures and phase constitutions of the coating before and after oxidation were investigated.
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