OXIDATION BEHAVIOUR OF Pt-MODIFIED ALUMINIDE COATINGS ON IN738 AT 1100℃

J Chin Soc Corr Pro

2001, Vol. 21

Issue (1): 54-58 DOI:

Research Report

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OXIDATION BEHAVIOUR OF Pt-MODIFIED ALUMINIDE COATINGS ON IN738 AT 1100℃

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中科院金属腐蚀与防护研究所

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Abstract The oxidation of Ptmodified aluminide coatings on nickelbase superalloy IN738 has been studied in static air at 1100℃ up to 14 00 h.The presence of Pt significantly suppressed the formation of γ′Ni3Al, promoted selective oxidation of aluminum by preventing the transport of other el ements in the substrate outwards to Al2O3 scale and forming purer,slowlygr owing and adherent Al2O3 scale.

Key words: platinum aluminide coating oxidation

Received: 21 December 1999

ZTFLH:

TG172.82

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. OXIDATION BEHAVIOUR OF Pt-MODIFIED ALUMINIDE COATINGS ON IN738 AT 1100℃. J Chin Soc Corr Pro, 2001, 21(1): 54-58 .

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y2001/V21/I1/54

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