Journal ArticleDOI
Solid Solution or Intermetallics in a High‐Entropy Alloy
TLDR
In this paper, the modulated structure of the AlCrFeCoNiCu high-entropy alloy consists of NiAl intermetallics (β') and a (α-Fe, Cr) solid solution (β).Abstract:
The modulated structure of the AlCrFeCoNiCu high-entropy alloy consists of NiAl intermetallics (β') and a (α-Fe, Cr) solid solution (β). The formation of the NiAl intermetallics greatly affects the strengths and magnetic properties of the A1 x CrFeCoNiCu alloys. Evidently, the AlCrFeCoNiCu alloy cannot be treated as a solid-solution alloy.read more
Citations
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A critical review of high entropy alloys and related concepts
Daniel B. Miracle,Oleg N. Senkov +1 more
TL;DR: High entropy alloys (HEAs) are barely 12 years old as discussed by the authors, and the field has stimulated new ideas and inspired the exploration of the vast composition space offered by multi-principal element alloys.
Journal ArticleDOI
Metastable high-entropy dual-phase alloys overcome the strength–ductility trade-off
TL;DR: In this metastability-engineering strategy, a transformation-induced plasticity-assisted, dual-phase high-entropy alloy (TRIP-DP-HEA) is designed, which combines the best of two worlds: extensive hardening due to the decreased phase stability known from advanced steels and massive solid-solution strengthening of high-ENTropy alloys.
Journal ArticleDOI
High-Entropy Alloys: A Critical Review
Ming-Hung Tsai,Jien-Wei Yeh +1 more
TL;DR: In this article, a review of critical aspects of high-entropy alloys, including core effects, phases and crystal structures, mechanical properties, high-temperature properties, structural stabilities, and corrosion behaviors are discussed.
Book
High-Entropy Alloys Fundamentals and Applications
TL;DR: In the last century, significant evolution and progress have led to the invention of special alloys, such as stainless steels, high speed steels and superalloys.
Journal ArticleDOI
Decomposition in multi-component AlCoCrCuFeNi high-entropy alloy
TL;DR: In this paper, the decomposition of an equiatomic AlCoCrCuFeNi high-entropy alloy produced by splat quenching and casting was investigated by the analytical high-resolution methods: transmission electron microscopy and three-dimensional atom probe.
References
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Journal ArticleDOI
Nanostructured High-Entropy Alloys with Multiple Principal Elements: Novel Alloy Design Concepts and Outcomes
Jien-Wei Yeh,Swe-Kai Chen,Su-Jien Lin,Jon-Yiew Gan,Tsung-Shune Chin,Tsung-Shune Chin,Tao-Tsung Shun,Chun-Huei Tsau,Shou-Yi Chang +8 more
TL;DR: A new approach for the design of alloys is presented in this paper, where high-entropy alloys with multi-principal elements were synthesized using well-developed processing technologies.
Journal ArticleDOI
Solid‐Solution Phase Formation Rules for Multi‐component Alloys
TL;DR: In this article, the factors of the atomic size difference Delta and the enthalpy of mixing ΔH mιx of the multi-component alloys were summarized from the literatures.
Journal ArticleDOI
Microstructure characterization of AlxCoCrCuFeNi high-entropy alloy system with multiprincipal elements
Chung-Jin Tong,Yu-Liang Chen,Jien-Wei Yeh,Su-Jien Lin,Swe-Kai Chen,Tao-Tsung Shun,Chun-Huei Tsau,Shou-Yi Chang +7 more
TL;DR: In this paper, a new approach for the design of alloy systems with multiprincipal elements was presented, and the Al x CoCrCuFeNi alloys with different aluminum contents (i.e., x values in molar ratio, x=0 to 3.0) were synthesized using a well-developed arc-melting and casting method.
Journal ArticleDOI
Solid solution alloys of AlCoCrFeNiTix with excellent room-temperature mechanical properties
TL;DR: In this article, the authors designed AlCoCrFeNiTiTi0.5 alloy by using the strategy of equiatomic ratio and high entropy of mixing, which is composed mainly of body centered cubic solid solution and possesses excellent compressive mechanical properties.
Journal ArticleDOI
Formation of simple crystal structures in Cu-Co-Ni-Cr-Al-Fe-Ti-V alloys with multiprincipal metallic elements
Jien-Wei Yeh,Su-Jien Lin,Tsung-Shune Chin,Jon-Yiew Gan,Swe-Kai Chen,Tao-Tsung Shun,Chung-Huei Tsau,Shou-Yi Chou +7 more
TL;DR: In this article, four alloys containing multiprincipal metallic elements (≥5 elements) were prepared by casting, splat quenching, and sputtering, and their microstructures and crystal structures were investigated.