caa a22 4500 467946574 CHVBK 20180322200725.0 cr unu---uuuuu 170328e19861001xx s 000 0 eng 10.1007/BF00553784 doi (NATIONALLICENCE)springer-10.1007/BF00553784 (NATIONALLICENCE)springer-10.1007/BF02402986 Analysis of second phase particles in a powder metallurgy HIP nickel-base superalloy [Elektronische Daten] [J. Crompton, R. Hertzberg] The nature of the second phase particles associated with LC Astroloy prepared using powder metallurgy techniques has been examined. The individual particles have been identified using energy dispersive X-ray analysis and convergent beam electron diffraction. Four distinct types of particles have been observed: a cubic MC carbide in which M is either titanium or titanium plus molybdenum, a monoclinic phase ZrO2, a trigonalα-Al2O3 and a tetragonal M3B2 phase in which M is molybdenum or molybdenum and chromium. The observations indicate that, although some MC carbides are associated with the ZrO2 phase, the majority of the prior particle boundary precipitates are separate entities. Hot isostatic pressing or subsequent heat treatments above or below the γ′ solvus were observed to have little effect on the incidence or distribution of the precipitation associated with the prior particle boundaries. In contrast, heat treatments above the γ′ solvus resulted in the dissolution of the M2B3 phase and its preferential precipitation on the grain boundaries. Chapman and Hall Ltd, 1986 Crompton J. Department of Metallurgy and Materials Engineering, Whitaker Lab #5, Lehigh University, 18015, Bethlehem, Pennsylvania, USA aut Hertzberg R. Department of Metallurgy and Materials Engineering, Whitaker Lab #5, Lehigh University, 18015, Bethlehem, Pennsylvania, USA aut Journal of Materials Science Kluwer Academic Publishers 21/10(1986-10-01), 3445-3454 0022-2461 21:10<3445 1986 21 10853 https://doi.org/10.1007/BF00553784 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00553784 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Crompton J. Department of Metallurgy and Materials Engineering, Whitaker Lab #5, Lehigh University, 18015, Bethlehem, Pennsylvania, USA aut NATIONALLICENCE 700 1- Hertzberg R. Department of Metallurgy and Materials Engineering, Whitaker Lab #5, Lehigh University, 18015, Bethlehem, Pennsylvania, USA aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers 21/10(1986-10-01), 3445-3454 0022-2461 21:10<3445 1986 21 10853 NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02402986 text/html Onlinezugriff via DOI Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE NATIONALLICENCE NL-springer