20.500.12556/RUL-131934 The influence of segregation bands and hot rolling on the precipitation of secondary phases during aging at 750 °C for nickel alloy 625 For Inconel 625, where the γ” and δ phases precipitate, the influence of prior hot rolling on the process is not well covered. The influence of segregation bands and prior hot rolling on the precipitation of secondary phases during aging at 750 °C for different times was investigated. Prior hot-rolling was conducted on a hot rolling mill at 1050 °C and 1150 °C with three different deformation levels. The hot rolled samples were aged at 750 °C for 1, 5, 25 and 125 h. The γ” precipitated in both the deformed and recrystallized grains in the segregation bands containing a high concentration of niobium and molybdenum and a lower concentration of nickel, chromium and iron. The opposite was observed between the segregation bands where no γ” precipitate was found. There was a smooth transition in the density and the size of the γ” particles in the deformed grains at the border of the segregation bands, while a more complex transition occurred in the recrystallized grains. This occurred in the area where the average niobium concentration decreased from 4.5 to 2.7 wt. %, which influenced the mechanical properties. nickel-based superalloy hot rolling recrystallization segregation precipitation nikljeve superzlitine vroče valjanje rekristalizacija segregacija izločanje true false true Angleški jezik Slovenski jezik Članek v reviji 2021-10-06 15:20:00 2021-10-06 15:20:00 2022-09-10 04:14:41 0000-00-00 00:00:00 2019 0 0 20 str. iss. 3, art. 314 Vol. 9 2019 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 669.245 2075-4701 10.3390/met9030314 1467818 RAZ_Malej_Simon_2019.pdf RAZ_Malej_Simon_2019.pdf 1 567DE531D70A2F6CF87986883B7B48A1 8baedbabcb1585f9f29dd9a99a8b636119b534284a6af6fc07e559b4a314311b 1c3b34e6-26a8-11ec-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=149391 https://www.mdpi.com/2075-4701/9/3/314 0 d08c6a60-26a7-11ec-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=149390 Naravoslovnotehniška fakulteta 0 0 0