The Effect of Re Content on Microstructure and Creep Resistance of Single Crystal Castings Made of Nickel-Based Superalloys

Kamil Gancarczyk; Robert Albrecht; Małgorzata Kawalec; Barbara Kościelniak; Andrzej Gradzik; Dariusz Szeliga; Andrzej Kawalec; Waldemar Ziaja; Maciej Motyka

doi:10.12913/22998624/178463

Advances in Sciences and Technology (Feb 2024)

The Effect of Re Content on Microstructure and Creep Resistance of Single Crystal Castings Made of Nickel-Based Superalloys

Kamil Gancarczyk,
Robert Albrecht,
Małgorzata Kawalec,
Barbara Kościelniak,
Andrzej Gradzik,
Dariusz Szeliga,
Andrzej Kawalec,
Waldemar Ziaja,
Maciej Motyka

Affiliations

Kamil Gancarczyk: ORCiD; Department of Materials Science and Research and Development Laboratory for Aerospace Materials, Faculty of Mechanical Engineering and Aeronautics, Rzeszow University of Technology, 12 Powstancow Warszawy Ave., 35-959 Rzeszow, Poland
Robert Albrecht: ORCiD; Institute of Materials Science, University of Silesia, 1a 75 Pulku Piechoty Str., 41-500 Chorzow, Poland.
Małgorzata Kawalec: ORCiD; Department of Manufacturing Processes and Production Engineering, Faculty of Mechanical Engineering and Aeronautics, Rzeszow University of Technology, 12 Powstancow Warszawy Ave., 35-959 Rzeszow, Poland
Barbara Kościelniak: ORCiD; Department of Materials Science and Research and Development Laboratory for Aerospace Materials, Faculty of Mechanical Engineering and Aeronautics, Rzeszow University of Technology, 12 Powstancow Warszawy Ave., 35-959 Rzeszow, Poland
Andrzej Gradzik: ORCiD; Department of Materials Science and Research and Development Laboratory for Aerospace Materials, Faculty of Mechanical Engineering and Aeronautics, Rzeszow University of Technology, 12 Powstancow Warszawy Ave., 35-959 Rzeszow, Poland
Dariusz Szeliga: ORCiD; Department of Materials Science and Research and Development Laboratory for Aerospace Materials, Faculty of Mechanical Engineering and Aeronautics, Rzeszow University of Technology, 12 Powstancow Warszawy Ave., 35-959 Rzeszow, Poland
Andrzej Kawalec: ORCiD; Department of Manufacturing Techniques and Automation, Faculty of Mechanical Engineering and Aeronautics, Rzeszow University of Technology, 12 Powstancow Warszawy Ave., 35-959 Rzeszow, Poland
Waldemar Ziaja: ORCiD; Department of Materials Science and Research and Development Laboratory for Aerospace Materials, Faculty of Mechanical Engineering and Aeronautics, Rzeszow University of Technology, 12 Powstancow Warszawy Ave., 35-959 Rzeszow, Poland
Maciej Motyka: ORCiD; Department of Materials Science and Research and Development Laboratory for Aerospace Materials, Faculty of Mechanical Engineering and Aeronautics, Rzeszow University of Technology, 12 Powstancow Warszawy Ave., 35-959 Rzeszow, Poland

DOI: https://doi.org/10.12913/22998624/178463
Journal volume & issue: Vol. 18, no. 1
pp. 291 – 305

Abstract

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In this work the effect of crystal structure perfection on the creep resistance of single crystal superalloys. The CMSX-4 and CMSX-4®Plus with increased Re content is analyzed. Single crystal rods are made by directional solidification process at the withdrawal rates 3 and 5 mm/min. The evaluation of microstructure and crystal structure perfection are carried out by light microscopy and X-ray diffraction Ω-scan methods. Creep tests are performed according to ASTM E-139-11 standard at the temperature of 982°C. Mathematical models for the creep resistance of the models are developed for both investigated superalloys. The influence of the crystal structure on the the investigated superalloys are built and the steady state creep rates are determined. Creep strength of both superalloys are compared. The results show that the CMSX-4®Plus nickel superalloy exhibits nearly two times higher creep resistance compared to the conventional CMSX-4 one.

Published in Advances in Sciences and Technology

ISSN: 2080-4075 (Print); 2299-8624 (Online)
Publisher: Lublin University of Technology
Country of publisher: Poland
LCC subjects: Technology: Engineering (General). Civil engineering (General)
Website: http://www.astrj.com

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