The grain boundary wetting phenomena in the ti‐containing high‐entropy alloys: A review

Boris B. Straumal; Anna Korneva; Alexei Kuzmin; Gabriel A. Lopez; Eugen Rabkin; Alexander B. Straumal; Gregory Gerstein; Alena S. Gornakova

doi:https://doi.org/10.3390/met11111881

The grain boundary wetting phenomena in the ti‐containing high‐entropy alloys: A review

Boris B. Straumal, Anna Korneva, Alexei Kuzmin, Gabriel A. Lopez, Eugen Rabkin, Alexander B. Straumal, Gregory Gerstein, Alena S. Gornakova

Materials Science & Engineering

Technion - Israel Institute of Technology

Research output: Contribution to journal › Review article › peer-review

Abstract

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.

Original language	English
Article number	1881
Journal	Metals
Volume	11
Issue number	11
DOIs	https://doi.org/10.3390/met11111881
State	Published - Nov 2021

Keywords

Grain boundary wetting
High‐entropy alloys
Phase diagrams
Phase transitions
Titanium alloys

All Science Journal Classification (ASJC) codes

Metals and Alloys
General Materials Science

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https://doi.org/10.3390/met11111881

Cite this

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title = "The grain boundary wetting phenomena in the ti‐containing high‐entropy alloys: A review",

abstract = "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{\textquoteright} properties or, alternatively, its exclusion if the GB layers of a second phase are detrimental.",

keywords = "Grain boundary wetting, High‐entropy alloys, Phase diagrams, Phase transitions, Titanium alloys",

author = "Straumal, {Boris B.} and Anna Korneva and Alexei Kuzmin and Lopez, {Gabriel A.} and Eugen Rabkin and Straumal, {Alexander B.} and Gregory Gerstein and Gornakova, {Alena S.}",

note = "Publisher Copyright: {\textcopyright} 2021 by the authors. Licensee MDPI, Basel, Switzerland.",

year = "2021",

month = nov,

doi = "https://doi.org/10.3390/met11111881",

language = "الإنجليزيّة",

volume = "11",

journal = "Metals",

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T1 - The grain boundary wetting phenomena in the ti‐containing high‐entropy alloys

T2 - A review

AU - Straumal, Boris B.

AU - Korneva, Anna

AU - Kuzmin, Alexei

AU - Lopez, Gabriel A.

AU - Rabkin, Eugen

AU - Straumal, Alexander B.

AU - Gerstein, Gregory

AU - Gornakova, Alena S.

PY - 2021/11

Y1 - 2021/11

N2 - 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.

AB - 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.

KW - Grain boundary wetting

KW - High‐entropy alloys

KW - Phase diagrams

KW - Phase transitions

KW - Titanium alloys

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U2 - https://doi.org/10.3390/met11111881

DO - https://doi.org/10.3390/met11111881

M3 - مقالة مرجعية

SN - 2075-4701

VL - 11

JO - Metals

JF - Metals

IS - 11

M1 - 1881

ER -

The grain boundary wetting phenomena in the ti‐containing high‐entropy alloys: A review

Abstract

Keywords

All Science Journal Classification (ASJC) codes

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