Creep Properties of a Nickel-Based Single Crystal Superalloy with Low Density

A novel nickel-based single crystal superalloy with low density had been designed and the creep deformation mechanisms of the experiment alloy under two conditions (1050 °C/200 MPa and 1100 °C/137 MPa) had been systematically discussed. The topological inversion had been observed after fracture unde...

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Veröffentlicht in:	Metals and materials international 2021, 27(12), , pp.5173-5178
Hauptverfasser:	Du, Yuling, Tan, Zihao, Yang, Yanhong, Wang, Xinguang, Zhou, Yizhou, Li, Jingguo, Sun, Xiaofeng
Format:	Artikel
Sprache:	eng
Schlagworte:	Characterization and Evaluation of Materials Chemistry and Materials Science Creep life Creep strength Deformation mechanisms Density Engineering Thermodynamics Heat and Mass Transfer High temperature Machines Magnetic Materials Magnetism Manufacturing Materials Science Materials Science, Multidisciplinary Metallic Materials Metallurgy & Metallurgical Engineering Nickel base alloys Processes Science & Technology Single crystals Solid Mechanics Superalloys Technology Temperature effects 재료공학
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Zusammenfassung:	A novel nickel-based single crystal superalloy with low density had been designed and the creep deformation mechanisms of the experiment alloy under two conditions (1050 °C/200 MPa and 1100 °C/137 MPa) had been systematically discussed. The topological inversion had been observed after fracture under the above two conditions. The effects of temperature and stress on creep life of the experiment alloy had been found no significant difference under the two conditions. It was indicated that the small decrease in temperature exerted limited influence on the creep behaviors of single crystal superalloys in the range of high temperature. Graphic Abstract
ISSN:	1598-9623 2005-4149
DOI:	10.1007/s12540-020-00903-6