Superplastic Behavior in High-Pressure Torsion-Processed Mo7.5Fe55Co18Cr12.5Ni7 Medium-Entropy Alloy

In the present study, superplasticity of high-pressure torsion-processed non-equiatomic Mo 7.5 Co 18 Cr 12.5 Fe 55 Ni 7 medium-entropy alloy with nanograins was investigated. The superplastic elongation of 505 pct was achieved at a temperature of 800 °C and a low strain rate. The precipitation of th...

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Veröffentlicht in:Metallurgical and materials transactions. A, Physical metallurgy and materials science Physical metallurgy and materials science, 2021, Vol.52 (1), p.1-7
Hauptverfasser: Nguyen, Nhung Thi-Cam, Asghari-Rad, Peyman, Bae, Jae Wung, Sathiyamoorthi, Praveen, Kim, Hyoung Seop
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container_title Metallurgical and materials transactions. A, Physical metallurgy and materials science
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creator Nguyen, Nhung Thi-Cam
Asghari-Rad, Peyman
Bae, Jae Wung
Sathiyamoorthi, Praveen
Kim, Hyoung Seop
description In the present study, superplasticity of high-pressure torsion-processed non-equiatomic Mo 7.5 Co 18 Cr 12.5 Fe 55 Ni 7 medium-entropy alloy with nanograins was investigated. The superplastic elongation of 505 pct was achieved at a temperature of 800 °C and a low strain rate. The precipitation of the μ phase enriched with Mo hinders the grain boundary migration and also acts as the origin for cavity and crack formation.
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subjects Alloys
Characterization and Evaluation of Materials
Chemistry and Materials Science
Elongation
Entropy
Grain boundary migration
Innovations in High Entropy Alloys and Bulk Metallic Glasses in Honor of Peter K. Liaw
Materials Science
Medium entropy alloys
Metallic Materials
Mu phase
Nanotechnology
Strain rate
Structural Materials
Superplasticity
Surfaces and Interfaces
Thin Films
Topical Collection: Innovations in High Entropy Alloys and Bulk Metallic Glasses
title Superplastic Behavior in High-Pressure Torsion-Processed Mo7.5Fe55Co18Cr12.5Ni7 Medium-Entropy Alloy
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