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Journal of Materials Science
Erschienen in: Journal of Materials Science 5/2020

23.09.2019 | Metals & corrosion

Excellent room temperature ductility of as-cast TRIP high-entropy alloy via Mo and C alloying

verfasst von: Yukun Lv, Xuerou Zhao, Tuo Shi, Li Bai, Jian Chen, Xianhui Wang

Erschienen in: Journal of Materials Science | Ausgabe 5/2020

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Abstract

The effect of C and Mo alloying elements on the microstructure and mechanical properties of transformation-induced plasticity (TRIP) high-entropy alloys (HEAs, Fe50Mn30Co10Cr10) was systematically investigated. The results showed that the as-cast TRIP-HEA doped with 2 at.% C presents an excellent combination of high tensile strength (~ 600 MPa) and high ductility (~ 67.4%) owing to solid-solution strengthening. Surprisingly, the addition of 1 at.% Mo promotes the improvement in tensile strength (~ 658 MPa) and significant increase in elongation (~ 89.8%), which is much larger than that of the most reported as-cast HEAs. This is attributed to the formation of finer equiaxed dendrite grain and the twinning-induced plasticity effect with more deformation twins in TRIP-HEAs added by C and Mo elements.
Vorheriger Artikel Microstructure evolution, magnetostrictive and mechanical properties of (Fe83Ga17)99.9(NbC)0.1 alloy ultra-thin sheets
Nächster Artikel Solid phase transformation of Ti–6.6Al–3.4Mo alloy induced by electroshocking treatment

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Metadaten
Titel
Excellent room temperature ductility of as-cast TRIP high-entropy alloy via Mo and C alloying
verfasst von
Yukun Lv
Xuerou Zhao
Tuo Shi
Li Bai
Jian Chen
Xianhui Wang
Publikationsdatum
23.09.2019
Verlag
Springer US
Erschienen in
Journal of Materials Science / Ausgabe 5/2020
Print ISSN: 0022-2461
Elektronische ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-019-04064-9

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