Search: id:"swepub:oai:research.chalmers.se:a101d01c-8384-4ba5-a194-bfaa69654ee2" >
A promising new cla...
A promising new class of high-temperature alloys: Eutectic high-entropy alloys
- Article/chapterEnglish2014
Publisher, publication year, extent ...
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2014-08-27
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Springer Science and Business Media LLC,2014
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electronicrdacarrier
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LIBRIS-ID:oai:research.chalmers.se:a101d01c-8384-4ba5-a194-bfaa69654ee2
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https://doi.org/10.1038/srep06200DOI
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https://research.chalmers.se/publication/204377URI
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Language:English
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Summary in:English
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Subject category:art swepub-publicationtype
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Subject category:ref swepub-contenttype
Notes
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High-entropy alloys (HEAs) can have either high strength or high ductility, and a simultaneous achievement of both still constitutes a tough challenge. The inferior castability and compositional segregation of HEAs are also obstacles for their technological applications. To tackle these problems, here we proposed a novel strategy to design HEAs using the eutectic alloy concept, i.e. to achieve a microstructure composed of alternating soft fcc and hard bcc phases. As a manifestation of this concept, an AlCoCrFeNi 2.1 (atomic portion) eutectic high-entropy alloy (EHEA) was designed. The as-cast EHEA possessed a fine lamellar fcc/B2 microstructure, and showed an unprecedented combination of high tensile ductility and high fracture strength at room temperature. The excellent mechanical properties could be kept up to 700°C. This new alloy design strategy can be readily adapted to large-scale industrial production of HEAs with simultaneous high fracture strength and high ductility.
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Dong, Y.
(author)
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Guo, Sheng,1981Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)shengg
(author)
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Jiang, L.
(author)
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Kang, H.
(author)
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Wang, T.
(author)
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Wen, B.
(author)
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Wang, Z.
(author)
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Jie, J.
(author)
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Cao, Z.
(author)
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Ruan, H.
(author)
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Li, T.
(author)
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Chalmers tekniska högskola
(creator_code:org_t)
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In:Scientific Reports: Springer Science and Business Media LLC4, s. 6200-2045-23222045-2322
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Lu, Y.
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Dong, Y.
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Guo, Sheng, 1981
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Jiang, L.
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Kang, H.
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Wang, T.
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show more...
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Wen, B.
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Wang, Z.
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Jie, J.
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Cao, Z.
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Ruan, H.
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Li, T.
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- About the subject
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Materials Engine ...
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and Metallurgy and M ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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Chalmers University of Technology