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Review

The Grain Boundary Wetting Phenomena in the Ti-Containing High-Entropy Alloys: A Review

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Osipyan Institute of Solid State Physics of the Russian Academy of Sciences, Ac. Osipyan Str. 2, 142432 Chernogolovka, Russia
2
Chernogolovka Scientific Center of the Russian Academy of Sciences, Lesnaja Str. 9, 142432 Chernogolovka, Russia
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Institute of Metallurgy and Materials Science, Polish Academy of Sciences, Reymonta Str. 25, 30-059 Cracow, Poland
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Institute of Solid State Physics, University of Latvia, Kengaraga Str. 8, LV-1063 Riga, Latvia
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Physics Department, University of the Basque Country UPV/EHU, Barrio Sarriena s/n, 48940 Leioa, Spain
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Department of Materials Science and Engineering, Technion—Israel Institute of Technology, Haifa 3200003, Israel
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Institute of Materials Science, Leibnitz University of Hannover an der Universität 2, 30823 Garbsen, Germany
*
Authors to whom correspondence should be addressed.
Academic Editor: Andriy Ostapovets
Metals 2021, 11(11), 1881; https://doi.org/10.3390/met11111881
Received: 30 October 2021 / Revised: 18 November 2021 / Accepted: 18 November 2021 / Published: 22 November 2021
In this review, the phenomenon of grain boundary (GB) wetting by melt is analyzed for multicomponent alloys without principal components (also called high-entropy alloys or HEAs) containing titanium. GB wetting can be complete or partial. In the former case, the liquid phase forms the continuous layers between solid grains and completely separates them. In the latter case of partial GB wetting, the melt forms the chain of droplets in GBs, with certain non-zero contact angles. The GB wetting phenomenon can be observed in HEAs produced by all solidification-based technologies. GB leads to the appearance of novel GB tie lines Twmin and Twmax in the multicomponent HEA phase diagrams. The so-called grain-boundary engineering of HEAs permits the use of GB wetting to improve the HEAs’ properties or, alternatively, its exclusion if the GB layers of a second phase are detrimental. View Full-Text
Keywords: titanium alloys; high-entropy alloys; grain boundary wetting; phase transitions; phase diagrams titanium alloys; high-entropy alloys; grain boundary wetting; phase transitions; phase diagrams
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MDPI and ACS Style

Straumal, B.B.; Korneva, A.; Kuzmin, A.; Lopez, G.A.; Rabkin, E.; Straumal, A.B.; Gerstein, G.; Gornakova, A.S. The Grain Boundary Wetting Phenomena in the Ti-Containing High-Entropy Alloys: A Review. Metals 2021, 11, 1881. https://doi.org/10.3390/met11111881

AMA Style

Straumal BB, Korneva A, Kuzmin A, Lopez GA, Rabkin E, Straumal AB, Gerstein G, Gornakova AS. The Grain Boundary Wetting Phenomena in the Ti-Containing High-Entropy Alloys: A Review. Metals. 2021; 11(11):1881. https://doi.org/10.3390/met11111881

Chicago/Turabian Style

Straumal, Boris B., Anna Korneva, Alexei Kuzmin, Gabriel A. Lopez, Eugen Rabkin, Alexander B. Straumal, Gregory Gerstein, and Alena S. Gornakova. 2021. "The Grain Boundary Wetting Phenomena in the Ti-Containing High-Entropy Alloys: A Review" Metals 11, no. 11: 1881. https://doi.org/10.3390/met11111881

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