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Title: The effect of withdrawal rate on crystal structure perfection, microstructure and creep resistance of single crystal castings made of CMSX-4 nickel-based superalloy
Authors: Gancarczyk, Kamil
Zubko, Maciej
Hanc-Kuczkowska, Aneta
Kościelniak, Barbara
Albrecht, Robert
Szeliga, Dariusz
Motyka, Maciej
Ziaja, Waldemar
Sieniawski, Jan
Keywords: Nickel-based superalloy; CMSX-4; Single crystal (SX); Crystal structure perfection; Creep resistance
Issue Date: 2019
Citation: "Materials" vol. 12, iss. 20 (2019), art. no. 3422, s. 1-14
Abstract: This study focuses on the evaluation of the crystal structure perfection in the single crystal made of CMSX-4 nickel superalloy and its effect on creep resistance. Single crystal castings were manufactured by directional solidification process at the withdrawal rate of 1, 3, 5 and 7 mm/min. Light (LM) and electron (SEM, TEM) microscopy, X-ray diffraction and Mossbauer spectroscopy were used for evaluation of the microstructure and crystal structure perfection. Castings were also subjected to creep tests. The best creep resistance was obtained for the casting manufactured at the withdrawal rate of 3 mm/min, characterized by the highest crystal structure perfection compared to the other castings examined.
DOI: 10.3390/ma12203422
ISSN: 1996-1944
Appears in Collections:Artykuły (WNŚiT)

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