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المؤلفTanner, Kirk
المؤلفVela, Brent
المؤلفMehalic, Seth
المؤلفYoussef, Khaled
المؤلفArróyave, Raymundo
تاريخ الإتاحة2022-05-11T04:46:25Z
تاريخ النشر2022-02-01
اسم المنشورScripta Materialia
المعرّفhttp://dx.doi.org/10.1016/j.scriptamat.2021.114336
الاقتباسKirk, T., Vela, B., Mehalic, S., Youssef, K., & Arróyave, R. (2022). Entropy-driven melting point depression in fcc HEAs. Scripta Materialia, 208, 114336.
الرقم المعياري الدولي للكتاب13596462
معرّف المصادر الموحدhttps://www.sciencedirect.com/science/article/pii/S1359646221006163
معرّف المصادر الموحدhttp://hdl.handle.net/10576/30808
الملخصHigh Entropy Alloys (HEAs) are an increasingly dominant alloy design paradigm. The premise of entropic stabilization of single-phase alloys has motivated much of the research on HEAs. Chemical complexity may indeed help stabilize single alloy phases relative to other lower-entropy competing solid phases. Paradoxically, this complexity may de-stabilize these alloys against the liquid phase, potentially limiting the application space of HEAs at elevated temperatures. In this work, we carry out a comprehensive investigation of the phase stability in the fcc CoCrFeMnNiV-Al HEA space using a state of the art CALPHAD database. By using modern visualization techniques and statistical analysis we examine the trade-off between chemical complexity and stability against the liquid state and identify a potentially difficult to overcome barrier for development of high temperature alloys, at least within the conventional fcc HEA space. Limited experimental data seem to be consistent with this analysis.
اللغةen
الناشرElsevier
الموضوعHigh entropy alloys
Alloy design
High temperature applications
Melting
العنوانEntropy-driven melting point depression in fcc HEAs
النوعArticle
رقم المجلد208
dc.accessType Open Access


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