caa a22 4500 467981167 CHVBK 20180323112519.0 cr unu---uuuuu 170328e19900601xx s 000 0 eng 10.1007/BF01100164 doi (NATIONALLICENCE)springer-10.1007/BF01100164 Variability of grain size in heat-resistant nickel alloys containing aluminum [Elektronische Daten] [I. Kabanov, I. Mel'kumov, T. Mochalova, S. Maslenkov, E. Maslenkova] Conclusions: 1. Heat treatment in air of heat-resistant alloys alloyed only with aluminum is unavoid-ably accompanied by the loss of C, B, Cr, and Al. The degree of burning-off of Cr and Al is insignificant, while the concentration of C and B in the surface layer decreases 2.5- and 20-fold, respectively. The thickness of the zone depleted in boron after the standard regimen of heat treatment is 3-4 mm. 2. Loss of carbon and boron is accompanied by increase in the concentration of nitrogen and oxygen in the surface layer, and the appearance of μ-phase. 3. Depletion of alloying elements in the surface layer leads to grain coarsening, and lowering of the mechanical properties. 4. Heat treatment in vacuum guarantees the preservation of a uniform grain structure throughout the entire cross section of the specimen. 5. Heat treatment of heat-resistant nickel alloys alloyed only with aluminum must be carried out under conditions which prevent the burning-out of alloying elements, i.e., in vaccum or inert atmosphere. Plenum Publishing Corporation, 1990 Kabanov I. aut Mel'kumov I. aut Mochalova T. aut Maslenkov S. aut Maslenkova E. aut Metal Science and Heat Treatment Kluwer Academic Publishers-Plenum Publishers 32/6(1990-06-01), 440-444 0026-0673 32:6<440 1990 32 11041 https://doi.org/10.1007/BF01100164 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01100164 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kabanov I. aut NATIONALLICENCE 700 1- Mel'kumov I. aut NATIONALLICENCE 700 1- Mochalova T. aut NATIONALLICENCE 700 1- Maslenkov S. aut NATIONALLICENCE 700 1- Maslenkova E. aut NATIONALLICENCE 773 0- Metal Science and Heat Treatment Kluwer Academic Publishers-Plenum Publishers 32/6(1990-06-01), 440-444 0026-0673 32:6<440 1990 32 11041 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer