. "2008-09-02+02:00"^^ . . . "Czech and Slovak Crystallographic Association" . . "Kub\u00ED\u010Dek, Petr" . "RIV/61989100:27360/08:00019391" . . "Study of diffusivity in ternary systems-diffusion joints of Ni/Ni3Al-Fe and Ni/Ni3Al-Ti"@en . "[09763A0B0031]" . . "Study of diffusivity in ternary systems-diffusion joints of Ni/Ni3Al-Fe and Ni/Ni3Al-Ti"@en . "Study of diffusivity in ternary systems-diffusion joints of Ni/Ni3Al-Fe and Ni/Ni3Al-Ti" . . "2"^^ . . "3"^^ . . . . "1"^^ . "Proceeding of the 18th Joint Seminar %22Development of Materials Science in Research and Education%22" . "27360" . . "398107" . "RIV/61989100:27360/08:00019391!RIV10-MSM-27360___" . "Sudrov\u00E1, J." . . . "Dr\u00E1pala, Jarom\u00EDr" . . "diffusivity; ternary systems; diffusion joints; Ni/Ni3Al-Fe; Ni/Ni3Al-Ti"@en . . "Study of diffusivity in ternary systems-diffusion joints of Ni/Ni3Al-Fe and Ni/Ni3Al-Ti" . "Diffusion phenomena in multi-component metallic systems have been studied at diffusion joints Ni/Ni3Al-Fe and Ni/Ni3Al-Ti. Chemical composition of the found intermetallic compound corresponded to the phase gama\u00B4 of the ternary system Ni-Al-Me. At first, specimens in the form of cylinders (diameter 10 mm) were joined by two technologies: electron beam welding and resistance butt welding. The specimens were placed in evacuated quartz ampoules and annealed at the temperature 1050 \u00B0C for the time 100 hours and then quenched into water. They were examined metallographically in the states before and after the annealing, their micro-hardness in the diffusion joint area was measured and the global (ICP-AES, SPECTRO MAX) chemical analysis was carried out and concentration profiles of individual components were explored by the X-ray (WDX, EDX) micro-analysis. The obtained concentration profiles were evaluated applying the modified Matano-Boltzmann method utilizing the concentration curves for which optimum type" . "Hnanice" . . "P(GA106/06/1190), Z(MSM6198910013)" . "978-80-254-0864-3" . . . "Diffusion phenomena in multi-component metallic systems have been studied at diffusion joints Ni/Ni3Al-Fe and Ni/Ni3Al-Ti. Chemical composition of the found intermetallic compound corresponded to the phase gama\u00B4 of the ternary system Ni-Al-Me. At first, specimens in the form of cylinders (diameter 10 mm) were joined by two technologies: electron beam welding and resistance butt welding. The specimens were placed in evacuated quartz ampoules and annealed at the temperature 1050 \u00B0C for the time 100 hours and then quenched into water. They were examined metallographically in the states before and after the annealing, their micro-hardness in the diffusion joint area was measured and the global (ICP-AES, SPECTRO MAX) chemical analysis was carried out and concentration profiles of individual components were explored by the X-ray (WDX, EDX) micro-analysis. The obtained concentration profiles were evaluated applying the modified Matano-Boltzmann method utilizing the concentration curves for which optimum type"@en . . "Praha" .