On the formation of hierarchical microstructure in a Mo-doped NiCoCr medium-entropy alloy with enhanced strength-ductility synergy

• Published in: Scripta materialia Vol. 175; pp. 1 - 6
• Main Authors: He, Junyang, Makineni, Surendra Kumar, Lu, Wenjun, Shang, Yuanyuan, Lu, Zhaoping, Li, Zhiming, Gault, Baptiste
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 15.01.2020
• Subjects: Deformation twinning; Hierarchical microstructure; Medium entropy alloys; Partial recrystallization; Yield strength; Yield strength; Deformation twinning; Hierarchical microstructure; Medium entropy alloys; Partial recrystallization

We demonstrate the formation of a hierarchical microstructure by optimized combination of Mo-doping and thermo-mechanical processing in a NiCoCr medium-entropy-alloy (MEA) that results in a significant improvement in yield-strength (~775 MPa) and ultimate-tensile-strength (~1200 MPa) with an elongat...