Modelling of Grain Microstructure of IN-713C Castings

Dariusz Szeliga; Krzysztof Kubiak; Andriy A. Burbelko; Rafał Cygan; Waldemar Ziaja

doi:10.4028/www.scientific.net/SSP.197.83

Paper Titles

The Influence of Turbine Blade Geometry and Process Parameters on the Structure of Zr Modified Aluminide Coatings Deposited by CVD Method on the ZS6K Nickel Superalloy
p.58

Quantitative Characterization of Shrinkage and Gas Pores in Turbine Blades Made of MAR M247 and IN 713C Superalloys
p.64

Quantitative Microstructural Analysis of Thermal Barrier Coatings Deposited on Inconel 625
p.70

Intermetallic Phases Formation in Hot Dip Galvanizing Process
p.77

Modelling of Grain Microstructure of IN-713C Castings
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The 3D Imaging and Metrology of CMSX-4 Superalloy Microstructure Using FIB-SEM Tomography Method
p.89

Influence of Coatings Deposition Parameters on Microstructure of Aluminide Coatings Deposited by CVD Method on Ni-Superalloys
p.95

Stochastic Nature of the Casting Solidification Displayed by Micro-Modelling and Cellular Automata Method
p.101

Stereological Characterization of TiC Carbides in Bottom Skull after Melting of Ti-6Al-4V-0,5C Alloy in Vacuum Induction Furnace
p.107

HomeSolid State PhenomenaSolid State Phenomena Vol. 197Modelling of Grain Microstructure of IN-713C...

Modelling of Grain Microstructure of IN-713C Castings

Abstract:

This paper provides an analysis of experimental research results and numerical simulation of grain microstructure of turbine blade castings made of the IN-713C nickel superalloy. The numerical simulation was carried out by applying the ProCAST program. The geometric description of model assemblies and three-dimensional ceramic mould enclosure was developed. The boundary conditions as well as the thermal and physical coefficients for alloy and ceramic shell mould were selected for simulation purposes. The parameters of nucleation law based on normal (Gaussian) distribution as well as the values of equation coefficients were established in order to determine the growth rate of dendrite tips for the IN-713C alloy, depending on the undercooling. The experimental verification of boundary conditions for numerical simulation was carried out by comparison with the results of temperature distribution measurements performed in the castings. The analysis of grain microstructure was conducted on the surface and cross-sections of castings. The forecasted grain microstructure was determined using the CAFE module (ProCAST software). The cast microstructure as well as the value of grain growth and nucleation coefficients, which were used for numerical simulation of solidification process, were experimentally verified.

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Periodical:

Solid State Phenomena (Volume 197)

Pages:

83-88

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.197.83

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Online since:

February 2013

Authors:

Dariusz Szeliga, Krzysztof Kubiak, Andriy A. Burbelko, Rafał Cygan, Waldemar Ziaja

Keywords:

Grain Microstructure, Nickel Superalloy, Numerical Simulation, Procast

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