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- Title
Tensile behavior and microstructural evolution of TiMoZrV HEAs: a molecular dynamics study.
- Authors
Sun, Jiacheng; Zhuo, Longchao; Chen, Bingqing; Zhan, Mingrui; Jiang, Chenghao
- Abstract
Crystallographic models of TiZrVMo HEAs were established here for six distinct grain sizes ranging from 7.4 to 23.5 nm. A consistent rise in tensile stress maxima is observed with diminishing grain size. Remarkably, the TiZrVMo composition demonstrates its optimal performance at a grain size of 12.4 nm. During tensile processes, TiZrVMo displays pronounced atomic plane slip and an increase in intra-grain dislocations, indicating significant plastic deformation. Conversely, TiZrV3Mo exhibits limited slip and localized stress, signifying a lower degree of plasticity. This research unveils the intricate interplay of grain boundary phenomena, dislocation behavior, and atomic plane slip, thereby shedding light on the mechanical properties of HEAs.
- Subjects
GRAIN size; MATERIAL plasticity; CRYSTAL grain boundaries; MOLECULAR dynamics; SOLID solutions
- Publication
Applied Physics A: Materials Science & Processing, 2024, Vol 130, Issue 2, p1
- ISSN
0947-8396
- Publication type
Article
- DOI
10.1007/s00339-023-07255-z