Atomistic modeling for the extremely low and high temperature-dependent yield strength in a Ni-based single crystal superalloy
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Authors
Zhang, Z.
Fu, Q.
Wang, J.
Yang, R.
Xiao, P.
Ke, F.
Lu, Chunsheng
Date
2021Type
Journal Article
Metadata
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Zhang, Z. and Fu, Q. and Wang, J. and Yang, R. and Xiao, P. and Ke, F. and Lu, C. 2021. Atomistic modeling for the extremely low and high temperature-dependent yield strength in a Ni-based single crystal superalloy. Materials Today Communications. 27: Article No. 102451.
Source Title
Materials Today Communications
Faculty
Faculty of Science and Engineering
School
School of Civil and Mechanical Engineering
Collection
Abstract
Understanding the temperature-dependent yield strength of Ni-based single crystal superalloys is of great significance for their microstructural design and engineering applications. In this Communication, from an atomistic perspective, the yield strength of a Ni-based single crystal superalloy varying with temperature, especially at extremely low (−272 °C) and high (1227 °C) temperatures, has been investigated. The atomic-scale mechanisms are elaborated by extracting several types of dislocation activities at various temperatures. The anomalous behavior of yield strength dominated by the atomic-scale dislocation evolution is visualized in Ni-based single crystal superalloys.