High entropy alloys (HEAs) are multicomponent alloys of 5 or more elements, with near equiatomic ratios and one single solid solution phase, usually bcc or fcc. From: Encyclopedia of Materials: Metals and Alloys, 2022 About this pageSet alert ...
definitionnotationcore effectssevere lattice distortionsluggish diffusioncocktail effectHigh-entropy alloys (HEAs) have emerged as an important class of materials in the last one decade with immense potential both at the level of fundamental understanding and also in terms of applications. This chapter ...
A critical review of high entropy alloys and related concepts High entropy alloys (HEAs) are barely 12 years old. The field has stimulated new ideas and has inspired the exploration of the vast composition space offer... D.B. Miracle a,O.N. Senkov a b - 《Acta Materialia》 被引量: 26...
金属高熵材料(Metallic high-entropy materials, HEMs),又称高熵合金(high-entropy alloys, HEAs),多成分合金(multicomponent alloys),多主元合金(multi-principal element alloys),组成复杂合金(compositionally complex alloys, CCAs),无基元合金(baseless alloys, BAs)等自2004年问世以来得到科学家的广泛关注与研究。...
This book provides a systematic and comprehensive description of high-entropy alloys (HEAs). The authors summarize key properties of HEAs from the perspective of both fundamental understanding and applications, which are supported by in-depth analyses. The book also contains computational modeling in ta...
1.2TheComingofAlloys 1.3SpecialAlloys 1.4TheComingofMulticomponent Heas 1.5TheScopeofThisBook Chapter2.High-EntropyAlloys: BasicConcepts 2.1Introduction 2.2ClassificationofPhaseDiagrams andAlloySystems 2.3DefinitionofHEAs 2.4CompositionNotation 2.5FourCoreEffectsofHEAs ...
High entropy alloys represent a unique class of metal alloys, comprising nominally five or more elements in near equiatomic proportions. High entropy alloys have gained significant interest on the basis that the high configurational entropy of such alloy
While such a single-phase structure can occur in unique systems, it is now appreciated that the definition of high entropy alloys can be broader, with systems comprising only four elements possible of forming single phases, and most five (or more) element systems actually being multi (>2) ...
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High-entropy alloys (HEAs) with an atomic arrangement of a hexagonal close-packed (hcp) structure were found in YGdTbDyLu and GdTbDyTmLu alloys as a nearly single hcp phase. The equi-atomic alloy design for HEAs assisted by binary phase diagrams started with selecting constituent elements with...