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HIGH TEMPERATURE OXIDATION BEHAVIOR OF NI3AL AND NI3ALNDPR INTERMETALLIC ALLOYS

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Figure

Figure 1. Ni-Al phase diagram. 2nd ed. ASM International; 1996
Figure 3. Some aspects of the a) as cast Ni 3 Al microstructure and b) as cast Ni 3 AlNdPr  microstructure
Table 1. Oxidation rate constant kp of Ni 3 Al and Ni 3 AlNdPr intermetallic alloy at  different temperatures  Intermetallic  Alloys  Kp, g 2 cm -4 s -1 Kp, g 2 cm -4 s -1 Kp, g 2 cm -4 s -1 Kp, g 2 cm -4 s -1 800°C  900°C  1000°C  1100°C  Ni 3 Al  2.90x10
Figure 6. Activation energy for Ni 3 Al and Ni 3 AlNdPr intermetallic alloys
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