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Oxidation behavior of cubic phases formed by alloying Al3Ti with Cr and Mn (1991)

Smialek, J. L. ; Nic, J. P. ; Mikkola, D. E. ; [et al.]

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Publication Date: 2011-08-19

Description: Gravimetric, SEM, and XRD data are presented which document the significant improvement obtainable in the oxidation resistance of Al3Ti-containing alloys through additions of Cr. The L1(2) Al(67)Cr(8)Ti25 alloy exhibited excellent cyclic oxidation resistance at 1473 K, with the primary oxide formed being the ideally protective alpha-Al2O3. The Al(67)Mn(8)Ti(25) alloy also tested for comparison exhibited poor cyclic oxidation resistance, with substantial occurrence of TiO2 in the protective scales. Catastrophic oxidation was also encountered in the quaternary alloy Al(67)Mn(8)Ti(22)V(3).

Keywords: METALLIC MATERIALS

Type: Scripta Metallurgica et Materialia (ISSN 0956-716X); 25; 727-731

Format: text

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