"primary dendrite arm spacing; growth rate; Ni-Al-B alloys"@en . "Effect of growth rate on the microstructure of Ni-Al-B alloys after directional solidification" . "2"^^ . "196289" . "Tanger s.r.o." . . "Alloys Ni-22Al-0.24B and Ni-22Al-1B (at. %) were prepared by vacuum induction melting and then directionally re-melted in resistance furnace working on the principle of the Bridgman\u2019s method. Final microstructures of alloys were dendritic after directional re-melting Coarse grains of the phase Ni3Al were oriented in direction of crystallisation and rows of mesh were situated between them in parallel. The mesh was composed of grains of the phase Ni3Al, which surrounded channels of (Ni) phase. Boron formed in the matrix isolated islands of eutectics. Change of the growth rate influenced the primary dendrite arm spacing according to linear equation in such a way, that the distance decrease with an increase of rate for both alloys. Increasing rate caused also changes of volume fractions of the present phases. Increases of fractions of coarse grain of the phase Ni3Al and eutectics were observed, while volume fraction of mesh decreased. This conclusion was identical for both alloys." . "RIV/61989100:27360/11:86080866" . . "Brno" . . "RIV/61989100:27360/11:86080866!RIV12-MSM-27360___" . . . . "Alloys Ni-22Al-0.24B and Ni-22Al-1B (at. %) were prepared by vacuum induction melting and then directionally re-melted in resistance furnace working on the principle of the Bridgman\u2019s method. Final microstructures of alloys were dendritic after directional re-melting Coarse grains of the phase Ni3Al were oriented in direction of crystallisation and rows of mesh were situated between them in parallel. The mesh was composed of grains of the phase Ni3Al, which surrounded channels of (Ni) phase. Boron formed in the matrix isolated islands of eutectics. Change of the growth rate influenced the primary dendrite arm spacing according to linear equation in such a way, that the distance decrease with an increase of rate for both alloys. Increasing rate caused also changes of volume fractions of the present phases. Increases of fractions of coarse grain of the phase Ni3Al and eutectics were observed, while volume fraction of mesh decreased. This conclusion was identical for both alloys."@en . . . . "Effect of growth rate on the microstructure of Ni-Al-B alloys after directional solidification"@en . "2011-05-18+02:00"^^ . "Z(MSM6198910013)" . . "20th Anniversary International Conference on Metallurgy and Materials: METAL 2011" . "Effect of growth rate on the microstructure of Ni-Al-B alloys after directional solidification" . . . "27360" . "Ostrava" . . . . . "Effect of growth rate on the microstructure of Ni-Al-B alloys after directional solidification"@en . "3"^^ . . . "Malcharczikov\u00E1, Jitka" . "[DA1A6CB3F75F]" . "3"^^ . "Kursa, Miroslav" . . "978-80-87294-24-6" . "Pohludka, Martin" .