Microstructural Design for Improving Ductility of An Initially Brittle Refractory High Entropy Alloy

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This article presents a novel approach to microstructural engineering of refractory high-entropy alloys (RHEAs) to form an "inverted" BCC+B2 microstructure.

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10 p.

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Soni, V.; Senkov, O. N.; Gwalani, B.; Miracle, D. B. & Banerjee, Rajarshi June 11, 2018.

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Description

This article presents a novel approach to microstructural engineering of refractory high-entropy alloys (RHEAs) to form an "inverted" BCC+B2 microstructure.

Physical Description

10 p.

Notes

Abstract: Typically, refractory high-entropy alloys (RHEAs), comprising a two phase ordered B2 + BCC microstructure, exhibit extraordinarily high yield strengths, but poor ductility at room temperature, limiting their engineering application. The poor ductility is attributed to the continuous matrix being the ordered B2 phase in these alloys. This paper presents a novel approach to microstructural engineering of RHEAs to form an “inverted” BCC + B2 microstructure with discrete B2 precipitates dispersed within a continuous BCC matrix, resulting in improved room temperature compressive ductility, while maintaining high yield strength at both room and elevated temperature.

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  • Scientific Reports, 2018. London, UK: Nature Publishing Group

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  • Publication Title: Scientific Reports
  • Volume: 8
  • Pages: 1-10
  • Peer Reviewed: Yes

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UNT Scholarly Works

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  • June 11, 2018

Submitted Date

  • March 6, 2018

Accepted Date

  • May 23, 2018

Added to The UNT Digital Library

  • June 26, 2018, 9:56 p.m.

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Soni, V.; Senkov, O. N.; Gwalani, B.; Miracle, D. B. & Banerjee, Rajarshi. Microstructural Design for Improving Ductility of An Initially Brittle Refractory High Entropy Alloy, article, June 11, 2018; London, United Kingdom. (digital.library.unt.edu/ark:/67531/metadc1181167/: accessed November 15, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT College of Engineering.