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Microstructure and hot corrosion resistance of aluminosiliconized layer on nickel-base superalloy K4104

Liwen Zhang

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Abstract

An Al-Si diffusion layer was prepared on the nickel-base superalloy K4104 by a slurry method.The microstructure,microhardness,oxidation resistance at 1 000 ℃ and hot corrosion resistance at 900 ℃ of the Al-Si layer were analyzed.The results show that the Al-Si layer is uniform and its microhardness is higher than the superalloy substrate.The oxidation and hot corrosion resistance of the K4104 alloy with the Al-Si layer are better than that without layer.

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What this paper is about

An Al-Si diffusion layer was prepared on the nickel-base superalloy K4104 by a slurry method.The microstructure,microhardness,oxidation resistance at 1 000 ℃ and hot corrosion resistance at 900 ℃ of the Al-Si layer were analyzed.The results show that the Al-Si layer is uniform and its microhardness is higher than the superalloy substrate.The oxidation and hot corrosion resistance of the K4104 alloy with the Al-Si layer are better than that without layer.

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Available abstract

An Al-Si diffusion layer was prepared on the nickel-base superalloy K4104 by a slurry method.The microstructure,microhardness,oxidation resistance at 1 000 ℃ and hot corrosion resistance at 900 ℃ of the Al-Si layer were analyzed.The results show that the Al-Si layer is uniform and its microhardness is higher than the superalloy substrate.The oxidation and hot corrosion resistance of the K4104 alloy with the Al-Si layer are better than that without layer.

Key concepts: Superalloy, Materials science, Microstructure, Corrosion, Metallurgy, Layer (electronics), Indentation hardness, Slurry

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Microstructure and hot corrosion resistance of aluminosiliconized layer on nickel-base superalloy K4104 — Research Paper | ScholarLens