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Rare Metals
Erschienen in: Rare Metals 2/2020

23.09.2019

Evolution of microstructure and hardness in a dual-phase Al0.5CoCrFeNi high-entropy alloy with different grain sizes

verfasst von: Hao-Xue Yang, Jin-Shan Li, Tong Guo, William-Yi Wang, Hong-Chao Kou, Jun Wang

Erschienen in: Rare Metals | Ausgabe 2/2020

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Abstract

Cold-rolling with subsequent annealing was carried out to produce recrystallized structures with different grain sizes in an Al0.5CoCrFeNi high-entropy alloy to systematically investigate the grain growth behavior and varying properties. The results show that recrystallized microstructures can be achieved through an annealing process at 1200 °C for 75 min to 16 h, and the average grain size in this study ranges from 5.33 to 30.03 µm. The hardness shown to be affected through grain coarsening was then measured as a function of the grain size, and it is found to follow the classical Hall–Petch strengthening.

Graphic abstract

Vorheriger Artikel Phase-field–lattice Boltzmann simulation of dendrite growth under natural convection in multicomponent superalloy solidification
Nächster Artikel Fracture morphology and crack mechanism in pure polycrystalline magnesium under tension–compression fatigue testing

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Metadaten
Titel
Evolution of microstructure and hardness in a dual-phase Al0.5CoCrFeNi high-entropy alloy with different grain sizes
verfasst von
Hao-Xue Yang
Jin-Shan Li
Tong Guo
William-Yi Wang
Hong-Chao Kou
Jun Wang
Publikationsdatum
23.09.2019
Verlag
Nonferrous Metals Society of China
Erschienen in
Rare Metals / Ausgabe 2/2020
Print ISSN: 1001-0521
Elektronische ISSN: 1867-7185
DOI
https://doi.org/10.1007/s12598-019-01320-4

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