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IMPROVEMENT OF OXIDATION RESISTANCE AND MECHANICAL PROPERTIES BY THE ADDITION OF YTTRIUM AND SILICON IN A Ni_3Al BASE ALLOY IC6 被引量:4

IMPROVEMENT OF OXIDATION RESISTANCE AND MECHANICAL PROPERTIES BY THE ADDITION OF YTTRIUM AND SILICON IN A Ni_3Al BASE ALLOY IC6
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摘要 The oridation resistance at 1100°C of a dirationally solidified Ni3Al base alloy IC6is substantially improved by the addition of yttriurn or yttrium and silicon. The stress rupture property under 1100°C/80MPa is increased by adding proper amounts of yttrium, howevef it decreases bg adding 0.3wt% silicon and 0. 1wt% yttrium at the same time, which may be attributed to the formation of a needle like phase rich in nickel and molybdenum. The oridation resistance at 1100°C of a dirationally solidified Ni3Al base alloy IC6is substantially improved by the addition of yttriurn or yttrium and silicon. The stress rupture property under 1100°C/80MPa is increased by adding proper amounts of yttrium, howevef it decreases bg adding 0.3wt% silicon and 0. 1wt% yttrium at the same time, which may be attributed to the formation of a needle like phase rich in nickel and molybdenum.
出处 《Acta Metallurgica Sinica(English Letters)》 SCIE EI CAS CSCD 1998年第4期296-300,共5页 金属学报(英文版)
关键词 Ni_3Al YTTRIUM SILICON oxidation resistance Ni_3Al, yttrium, silicon, oxidation resistance
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