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Magmasoft parallel software#
The application of such software makes possible to assess quickly the correctness of the developed technology.
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Hence, there is a continuous development of numerical methods for the simulation of preheating, pouring the mold and solidification followed with cooling of castings.
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The manufacturing process of investment nickel superalloy blade castings is difficult and expensive. In most cases, they are manufactured by pouring the molten metal into a ceramic shell mold during the investment casting process. These are mainly the rotor blades and vane rings of both high and low pressure turbines and the elements of combustion chamber. Introduction Nickel superalloys are widely applied for strongly loaded elements of aircraft engine hot-section components which are particularly exposed to hot corrosion and thermal fatigue. Keywords: Interface thermal resistance, ceramic shell mold, Ni-based superalloys, numerical simulation, oxide scaleġ. On the basis of numerical simulation, it was found that the IHTC had less influence on cooling rate of casting than the thickness, thermal conductivity and emissivity of the mold for the applied technological parameters of the process. The formation mechanism of gap between the ceramic mold and Ni based superalloy casting as well as another peak were proposed taking into account the occurrence of mixed oxide scale at the interface. It was found that the casting-mold IHTC (7962 Wm-2 K-1) was the highest for the alloy in the liquid state and then it intensively decreased during solidification and cooling followed by its increase close to the end of the solidification process forming another peak on the obtained curve. The calculations were performed using a ProCAST software. The temperature measurements in the plate casting of IN 713C nickel superalloy and the ceramic shell mold were carried out to determine the casting-mold interface heat transfer coefficient (IHTC) with the use of inverse heat conduction method. The analysis of thermal resistance at casting-mold interface between the solidifying IN 713C nickel superalloy plate casting and ceramic shell mold has been presented. Research and Development Laboratory for Aerospace Materials, 4, Żwirki i Wigury Str., 35-Ĭonsolidated Precision Products Poland, 120, Hetmanska Str., 35-078 Rzeszow, Polandĭepartment of Engineering of Cast Alloys and Composites, Faculty of FoundryĮngineering, AGH University of Science and Technology, 23, Reymonta Str., 30-059 Krakow, Poland * Corresponding author: e-mail: Ībstract The study of thermal resistance (TR) at the casting-mold interface has been performed to describe the solidification process aimed at the improvement of technology and the reduction of defect quantity of investment castings. Sieniawski a, b aĭepartment of Material Science, Faculty of Mechanical Engineering and Aeronautics, Investigation of casting-ceramic shell mold interface thermal resistance during solidification process of nickel based superalloy D. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. As a service to our customers we are providing this early version of the manuscript.
Magmasoft parallel pdf#
This is a PDF file of an unedited manuscript that has been accepted for publication. Sieniawski, Investigation of casting-ceramic shell mold interface thermal resistance during solidification process of nickel based superalloy, Experimental Thermal and Fluid Science (2017), doi: j.expthermflusci.2017.04.024 Received Date: Revised Date: Accepted Date: Accepted Manuscript Investigation of casting-ceramic shell mold interface thermal resistance during solidification process of nickel based superalloy D.