Interdiffusion and intrinsic diffusion in the Ni AI (δ) phase of the Al-Ni system
作者： S. Shankar , L. L. Seigle
DOI: 10.1007/BF02661819
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摘要: Interdiffusion coefficients at 950 to 1150°C and the ratio of intrinsic diffusion 1100°C were measured as functions composition in NiAl (δ) phase Al-Ni system, using a vapor-solid technique. Diffusivity values also obtained for Ni3Al (∈)and Ni (Al) solid solution (ζ) phases from 1150°C. The interdiffusion coefficient varies several orders magnitude over δ field with deep minimum diffusivity-composition curve 48 49 at. pct Al. coefficients, Dni/DaI, value 3 3.5 below 50 Al 0.1 or less above
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