Author:
He Feng,Wang Zhijun,Li Yiyan,Wu Qingfeng,Li Junjie,Wang Jincheng,Liu C. T.
Abstract
Abstract
The comprehensive performance of high entropy alloys (HEAs) depends on the phase selection significantly. However, up to now, investigations of the phase selection in HEAs mainly focused on the thermodynamic equilibrium phase, while kinetic ways of tailoring the phases in HEAs are seldom considered. In HEAs, the kinetics of sluggish diffusion and the numerous possible phases make the kinetics of phase transformation more complex and intriguing. Here, the kinetic effect in CoCrFeNiTi0.4 HEAs was investigated to reveal the possibility of controlling phase selection via kinetic ways for HEAs. The σ, γ′ and R phases in the CoCrFeNiTi0.4 HEA can be controlled under different cooling rate both in solidification and solid transformation. The theoretical analyses revealed the kinetic effect on phase selection. The method proposed here, tailoring the phases with different kinetic ways, could be used to prepare promising HEAs with very rich composition design.
Publisher
Springer Science and Business Media LLC
Reference44 articles.
1. Yeh, J. W. et al. Nanostructured High-Entropy Alloys with Multiple Principal Elements: Novel Alloy Design Concepts and Outcomes. Advanced Engineering Materials 6, 299–303 (2004).
2. Cantor, B., Chang, I. T. H., Knight, P. & Vincent, A. J. B. Microstructural development in equiatomic multicomponent alloys. Materials Science and Engineering: A 375–377, 213–218 (2004).
3. Senkov, O., Miller, J., Miracle, D. & Woodward, C. Accelerated exploration of multi-principal element alloys with solid solution phases. Nature communications 6 (2015).
4. Santodonato, L. J. et al. Deviation from high-entropy configurations in the atomic distributions of a multi-principal-element alloy. Nat Commun 6 (2015).
5. Miracle, D. High entropy alloys and their development as structural materials. Materials Science and Technology, 1743284714Y. 0000000749 (2015).
Cited by
41 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献