JOURNAL ARTICLE

Investigation of High-Entropy Alloys with Rare Element Additions Undergoing Phase Transformation at Cryogenic Temperatures.

  • Published In: Journal of Molecular & Engineering Materials, 2024, v. 12, n. 4. P. 1 1 of 3

  • Database: Applied Science & Technology Source Ultimate 2 of 3

  • Authored By: Alfitouri, Abdulkarim Omar; Çuğ, Harun; Cicek, Bunyamin; Erden, Mehmet Akif; Güngüneş, Hakan; Ahmed, Salih Birhanu; Elkilani, Rajab 3 of 3

Abstract

This study investigates the impact of rare elements on high-entropy alloys (HEAs) and provides significant insights. By integrating varying proportions of Al-Nd and Al-Ce compounds into a CoCrFeNi-based alloy, shifts were detected in the microstructure and phase composition of grains. As the proportion of rare elements rose, their localization within the grain phase structure intensified, leading to overall coarsening. The heat transfer characteristics of HEA alloys containing rare elements exhibited variability, with notable phase transitions occurring at cryogenic temperatures based on the alloying constituents. Among the tested alloys, Ce10 and Ce20 alloys demonstrated the highest heat transfer rates (800 Wg − 1 ). Notably, an escalation in the rare element ratio added to the alloy resulted in a significant augmentation in hardness, nearly doubling the original level. [ABSTRACT FROM AUTHOR]

Additional Information

  • Source:Journal of Molecular & Engineering Materials. 2024/12, Vol. 12, Issue 4, p1
  • Document Type:Article
  • Subject Area:Earth and Atmospheric Sciences
  • Publication Date:2024
  • ISSN:22512373
  • DOI:10.1142/S225123732450014X
  • Accession Number:180476301
  • Copyright Statement:Copyright of Journal of Molecular & Engineering Materials is the property of World Scientific Publishing Company and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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