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Journal of Materials Engineering and Performance
Erschienen in: Journal of Materials Engineering and Performance 5/2019

08.05.2019

Nanoindentation Creep Behavior of CoCrFeNiMn High-Entropy Alloy under Different High-Pressure Torsion Deformations

verfasst von: P. F. Zhou, D. H. Xiao, G. Li, M. Song

Erschienen in: Journal of Materials Engineering and Performance | Ausgabe 5/2019

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Abstract

CoCrFeNiMn high-entropy alloy (HEA) has gained increasing attention in recent years. In this work, CoCrFeNiMn HEA was prepared by arc melting and casting method; and high-pressure torsion (HPT) technology was used to refine the grains. A series of nanoindentation experiments was used to investigate the effect of different loading rates and deformations on the nanoindentation creep behavior of the CoCrFeNiMn HEA. The results show that the grain size of the CoCrFeNiMn HEA refines to the nanoscale after HPT. However, grain refinement is not obvious with further increasing HPT rotation. The loading rate and HPT rotations have an obvious effect on the nanoindentation creep behaviors of the CoCrFeNiMn HEA. The creep behaviors of the as-cast and HPT-treated CoCrFeNiMn HEA may be controlled by dislocations and the collective effect of GB sliding and dislocations, respectively.
Vorheriger Artikel Effect of ECAP Die Angles on Microstructure Mechanical Properties and Corrosion Behavior of AZ80 Mg Alloy
Nächster Artikel Manufacturing of Ultra-Fine Particle Coal Fly Ash–A380 Aluminum Matrix Composites with Improved Mechanical Properties by Improved Ring Milling and Oscillating Microgrid Mixing

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Metadaten
Titel
Nanoindentation Creep Behavior of CoCrFeNiMn High-Entropy Alloy under Different High-Pressure Torsion Deformations
verfasst von
P. F. Zhou
D. H. Xiao
G. Li
M. Song
Publikationsdatum
08.05.2019
Verlag
Springer US
Erschienen in
Journal of Materials Engineering and Performance / Ausgabe 5/2019
Print ISSN: 1059-9495
Elektronische ISSN: 1544-1024
DOI
https://doi.org/10.1007/s11665-019-04092-1

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