High-Temperature Tensile Strength of Al 10 Co 25 Cr 8 Fe 15 Ni 36 Ti 6 Compositionally Complex Alloy (High-Entropy Alloy)

作者: H. M. Daoud , A. M. Manzoni , N. Wanderka , U. Glatzel

DOI: 10.1007/S11837-015-1484-7

关键词:

摘要: Homogenizing at 1220°C for 20 h and subsequent aging 900°C 5 50 of a novel Al10Co25Cr8Fe15Ni36Ti6 compositionally complex alloy (high-entropy alloy) produces microstructure consisting an L12 ordered γ′ phase embedded in face-centered cubic solid-solution γ matrix together with needle-like B2 precipitates (NiAl). The volume fraction is ~46% <5%, which accordance the prediction calculation diagram method (CALPHAD using Thermo-Calc software TTNi7 database; Software, Stockholm, Sweden). high-temperature tensile tests were carried out room temperature, 600°C, 700°C, 800°C, 1000°C. strength as well elongation to failure both heat-treated specimens very high all tested temperatures. values has been compared literature data well-known Alloy 800H Inconel 617, discussed terms observed microstructure.

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