WANG Fuhui LO U Hanyi BAI Linxiang Institute of Corrosion and Protection of Metals
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Academia Sinica
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Shenyang
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China WANG Fuhui
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Institute of Corrosion and Protection of Metals
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Academia Sinica
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Shenyang 110015
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China
金属学报(英文版)
The yttraluminizing coating on the Ni-base superalloys has been developed by dipping the specimens in a specially made yttrium-containing slurry as an underlayer and over spraying a Cr-Al slurry as a protective layer,then heating to 1060℃ and holding for 1 h under argon atmosphere.Analysis by EPMA showed that the yttrium was concentrated in the intermediate zone of the coating as metallic compound Ni-5Y.After exposure to air up to 1000℃,the oxidation test revealed that the anti-oxidation resistance of the yttraluminizing coating with post-aluminizing is much superior to that with single aluminizing only.
关键词:
yttraluminizing coating
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