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- Title
The Influence of the Melt-Pouring Temperature and Inoculant Content on the Macro and Microstructure of the IN713C Ni-Based Superalloy.
- Authors
Matysiak, Hubert; Zagorska, Malgorzata; Balkowiec, Alicja; Adamczyk-Cieslak, Boguslawa; Dobkowski, Krzysztof; Koralnik, Mateusz; Cygan, Rafal; Nawrocki, Jacek; Cwajna, Jan; Kurzydlowski, Krzysztof
- Abstract
The aim of this work was to determine the effect of melt-pouring temperature T and inoculant (cobalt aluminate-CoAlO) concentration in the prime coat of the shell mold on the macro- and microstructure of the IN713C superalloy. The results show that cobalt aluminate is an effective modifier of the IN713C superalloy, which causes refinement of the equiaxed grains (EX) and a reduction of the fraction and size of the columnar grains on the casting surface. Also, the melt-pouring temperature in the range of 1450-1520°C was found to influence the mean EX grain size. Based on the results of differential thermal analysis of the alloy and detailed microstructure characterization, a sequence of precipitations has been proposed that advances current understanding of processes that take place during alloy solidification and casting cooling.
- Subjects
NICKEL alloys; HEAT resistant alloys; MELTING; COBALT aluminate; GRAIN size; FOUNDING; SOLIDIFICATION
- Publication
JOM: The Journal of The Minerals, Metals & Materials Society (TMS), 2016, Vol 68, Issue 1, p185
- ISSN
1047-4838
- Publication type
Article
- DOI
10.1007/s11837-015-1672-5