"In the present paper there are reported the results of measurements of chemical diffusion of Al, Cr, Fe, Ni in steel weldments formed by steel \u010CSN 412050 additionally alloyed by Al, and by austenitic Cr-Ni steel \u010CSN 417242. The measured values of chemical diffusivity show that D(Cr)=D(Fe)=D(Ni) and that D(Al) is slightly higher than these values, approximately 2 times in ferritic region and 3.5 times in austenitic region. The choice steels yields the possibility to judge Al diffusivity in both BCC and FCC steel structures. The knowgledge of thermodynamic and diffusion interaction parameters makes it possible, together with carbon diffusion coefficients in 17242 steel, to calculate carbon redistribution in steel weldments."@en . "V p\u0159\u00EDsp\u011Bvku jsou uvedeny v\u00FDsledky m\u011B\u0159en\u00ED chemick\u00E9 difuze Al, Cr, Fe a Ni ve svarov\u00FDch spoj\u00EDch oceli \u010CSN 412050 s dodate\u010Dn\u011B zv\u00FD\u0161enou koncentrac\u00ED hlin\u00EDku a austenitick\u00E9 oceli Cr-Ni \u010CSN 417242. Z nam\u011B\u0159en\u00FDch hodnot chemick\u00E9 difuze je patrno, \u017Ee D(Cr)=D(Fe)=D(Ni) a \u017Ee D(Al) je m\u00EDrn\u011B vy\u0161\u0161\u00ED ne\u017E tyto hodnoty, cca 2x ve feritick\u00E9 oblasti a 3,5x v oblasti austenitick\u00E9. Volba sva\u0159ovan\u00FDch ocel\u00ED d\u00E1v\u00E1 mo\u017Enost posoudit difuzivitu Al v BCC i v FCC struktu\u0159e oceli. Znalost termodynamick\u00FDch a difuzn\u00EDch interak\u010Dn\u00EDch parametr\u016F spolu se zn\u00E1m\u00FDmi koeficienty difuze uhl\u00EDku v nerezov\u00E9 oceli 17242 umo\u017E\u0148uj\u00ED vypo\u010D\u00EDtat distribuci uhl\u00EDku ve svarov\u00FDch spoj\u00EDch." . "Chemical diffusion of Al, Cr, Fe, Ni in steel weldments in the temperature range of 500-1100 0C."@en . . "Str\u00E1nsk\u00FD, K." . "Chemical diffusion of Al, Cr, Fe, Ni in steel weldments in the temperature range of 500-1100 0C."@en . "[A39506DB72D3]" . . . "P(GA106/01/0379), P(GA106/01/0382), Z(AV0Z2041904)" . . . "RIV/68081723:_____/03:07033169" . "Kovov\u00E9 materi\u00E1ly" . "Ku\u010Dera, Jaroslav" . "SK - Slovensk\u00E1 republika" . . . "325;334" . . . "Million, Bo\u0159ivoj" . "Chemick\u00E1 difuze Al, Cr, Fe, Ni ve svarov\u00FDch spoj\u00EDch ocel\u00ED v teplotn\u00EDm intervalu 500-1100 0C." . . . "10"^^ . "chemical diffusion Al, Cr, Fe, Ni; steel weldments; high temperatures"@en . . . "601065" . "2"^^ . "Chemick\u00E1 difuze Al, Cr, Fe, Ni ve svarov\u00FDch spoj\u00EDch ocel\u00ED v teplotn\u00EDm intervalu 500-1100 0C."@cs . "0023-432X" . . "Chemick\u00E1 difuze Al, Cr, Fe, Ni ve svarov\u00FDch spoj\u00EDch ocel\u00ED v teplotn\u00EDm intervalu 500-1100 0C." . . . "5" . "Chemick\u00E1 difuze Al, Cr, Fe, Ni ve svarov\u00FDch spoj\u00EDch ocel\u00ED v teplotn\u00EDm intervalu 500-1100 0C."@cs . . . "3"^^ . "RIV/68081723:_____/03:07033169!RIV/2004/AV0/A07004/N" . . "0"^^ . . "0"^^ . "41" . . .