PT  - JOURNAL ARTICLE
AU  - Jonsta, Petr
AU  - Jonsta, Zdenek
AU  - Konecna, Katerina
AU  - Gabcova, Miriam
AU  - Hrbacek, Karel
TI  - Microstructural Analysis of Nickel Superalloy MAR-M247
DP  - 2012 Dec 30
TA  - Communications - Scientific Letters of the University of Zilina
PG  - 43--47
VI  - 14
IP  - 4
AID - 10.26552/com.C.2012.4.43-47
IS  - 13354205
AB  - This paper presents the results of a microstructural phase analysis of the nickel superalloy MAR M247 after casting and different modes of dissolving annealing in the range of 900°C - 1240°C with cooling in water. The alloy in question presents a polycrystalline nickel creepresistant alloy usable especially for highly stressed components in the aerospace and rocket industries. The analysis was performed using a JEOL JSM 6490LV scanning electron microscope with an Oxford Inca x-act x-ray microanalyzer. The presence of minority phases was identified. The study is focused on their possible changes after the application of different modes of thermal treatment.