Original title: Grain boundaries in Ni3Ga as paths of rapid diffusion
Authors: Čermák, Jiří ; Růžičková, Jana ; Konecny, M. ; Ipser, H.
Document type: Papers
Conference/Event: Metal 01, Ostrava (CZ), 2001-05-15 / 2001-05-17
Year: 2001
Language: eng
Abstract: Grain boundary diffusivity P (P is a triple product of diffusion coefficient in grain boundary D, grain boundary width .delta. and segregation coefficient s) of nickel was measured by serial sectioning and residual activity methods in temperature interval 973-1373 K. Measurements are compared with our previous results on Ni grain boundary diffusivity in Ni3Al. It was obtained that the values of P for nickel in Ni3Ga are slightly higher than those for nickel in Ni3Al. The observed relation between Ps was interpreted by different affinity of diffusing Ni to different components X in the two Ni3X alloys.
Keywords: boundaries; diffusion; intermetallics
Project no.: CEZ:AV0Z2041904 (CEP), IBS2041105 (CEP), GA106/01/0384 (CEP)
Funding provider: GA AV ČR, GA ČR
Host item entry: Metal 01

Institution: Institute of Physics of Materials AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0074685

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