Effect of thermophysical properties and processing conditions on primary dendrite arm spacing of nickel-base superalloys - Numerical approach

Journal article


Publication Details

Author(s): Franke M, Hilbinger RM, Heckl A, Singer R
Journal: Gießereiforschung
Publication year: 2011
Volume: 278
Pages range: 156-161
ISSN: 0046-5933
Language: English


Abstract


This paper presents the results of an investigation on the interrelationship between thermophysical properties, processing conditions and primary dendrite arm spacing for a nickelbase superalloy. The research was realized for CMSX-4, directionally solidified in a Bridgman furnace. For a systematic, fast and cost-efficient investigation numerical finite element models were applied. The numerical model, composed of thermophysical material data, geometric data and boundary conditions, was calibrated and experimentally validated. Microstructural parameters of the castings were determined for a broad range of processing conditions and varying thermophysical properties in order to study general influences. Withdrawal speed, furnace temperature, enthalpy of fusion, solidification range, heat conductivity and specific heat were varied accordingly. The primary dendrite arm spacing is predominantly influenced by withdrawal speed and furnace temperature, but shows only a weak dependency on thermophysical properties. © (2011) Trans Tech Publications, Switzerland.



FAU Authors / FAU Editors

Franke, Martin
Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)
Hilbinger, Rolf Michael
Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)
Singer, Robert Prof. Dr.-Ing.
Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)


Research Fields

High Temperature Materials
Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)


How to cite

APA:
Franke, M., Hilbinger, R.M., Heckl, A., & Singer, R. (2011). Effect of thermophysical properties and processing conditions on primary dendrite arm spacing of nickel-base superalloys - Numerical approach. Gießereiforschung, 278, 156-161. https://dx.doi.org/10.4028/www.scientific.net/AMR.278.156

MLA:
Franke, Martin, et al. "Effect of thermophysical properties and processing conditions on primary dendrite arm spacing of nickel-base superalloys - Numerical approach." Gießereiforschung 278 (2011): 156-161.

BibTeX: 

Last updated on 2018-13-12 at 13:50