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  5. Kink bands promote exceptional fracture resistance in a NbTaTiHf refractory medium-entropy alloy

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Article
English
2024

Kink bands promote exceptional fracture resistance in a NbTaTiHf refractory medium-entropy alloy

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0 Files

English
2024
Science
Vol 384 (6692)
DOI: 10.1126/science.adn2428

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Robert O. Ritchie
Robert O. Ritchie

University of California, Berkeley

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David H. Cook
Punit Kumar
Madelyn I. Payne
+12 more

Abstract

Single-phase body-centered cubic (bcc) refractory medium- or high-entropy alloys can retain compressive strength at elevated temperatures but suffer from extremely low tensile ductility and fracture toughness. We examined the strength and fracture toughness of a bcc refractory alloy, NbTaTiHf, from 77 to 1473 kelvin. This alloy's behavior differed from that of comparable systems by having fracture toughness over 253 MPa·m

How to cite this publication

David H. Cook, Punit Kumar, Madelyn I. Payne, Calvin H. Belcher, Pedro P.P.O. Borges, Wenqing Wang, Flynn Walsh, Zehao Li, Arun Devaraj, Mingwei Zhang, Mark Asta, Andrew M. Minor, Enrique J. Lavernia, Diran Apelian, Robert O. Ritchie (2024). Kink bands promote exceptional fracture resistance in a NbTaTiHf refractory medium-entropy alloy. Science, 384(6692), pp. 178-184, DOI: 10.1126/science.adn2428.

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Publication Details

Type

Article

Year

2024

Authors

15

Datasets

0

Total Files

0

Language

English

Journal

Science

DOI

10.1126/science.adn2428

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