Creep of Mechanically-Alloyed NiAl Containing 13 Vol % Mo or Mo2C Dispersoids
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ABSTRACTDispersion-strengthened nickel aluminide NiAl was synthesized by reactive mechanical alloying from elemental powders. The microstructure and creep properties of these materials was compared for two cases: (i) NiAl-Mo, where dispersoids are in the form of a ductile, metallic phase and (ii) NiAl- Mo2C, where the dispersoids are a brittle, ceramic phase. Also, the effect of annealing treatments which coarsened both matrix grains and dispersoids was investigated. Inhibited diffusional creep is identified as the rate-controlling creep mechanism.
1995 ◽
Vol 192-193
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pp. 186-194
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1990 ◽
Vol 48
(4)
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pp. 970-971
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2010 ◽
Vol 27
(8)
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pp. 086106
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2012 ◽
Vol 194
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pp. 194-198
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2014 ◽
Vol 2014
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pp. 1-20
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