Addressing the strength-ductility trade-off in a thermomechanical-processed high entropy alloy

Name: Addressing the strength-ductility trade-off in a thermomechanical-processed high entropy alloy
Author: Radi, Amin, Işıl, Canay, Seyedmohammadi, Seyedveghar, Kim, H. S., Yapıcı, Güney Güven

İsim	Addressing the strength-ductility trade-off in a thermomechanical-processed high entropy alloy
Yazar	Radi, Amin, Işıl, Canay, Seyedmohammadi, Seyedveghar, Kim, H. S., Yapıcı, Güney Güven
Basım Tarihi:	2023-12-15
Basım Yeri	- Elsevier
Konu	Ductility, High entropy alloy, Multi-phase, Nano-indentation, Strength, Thermomechanical processing
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	0925-8388
Kayıt Numarası	86647ea3-5aef-4ed0-90d0-d8052e998318
Lokasyon	Mechanical Engineering
Tarih	2023-12-15
Notlar	BAGEP Award of the Science Academy, Turkiye
Örnek Metin	High entropy alloys (HEAs) have garnered significant attention due to their exceptional mechanical behavior. However, the influence of secondary phases and dislocation substructures has yet to be thoroughly investigated. This study focuses on the incorporation of the decomposed η-phase within a face-centered cubic (FCC) microstructure at different recrystallization levels, aiming to achieve adequate ductility while maintaining strength at gigapascal levels. Various characterization techniques were employed to analyze the microstructure of both homogenized and annealed+aged conditions. Implementing a sub-micron grain size distribution and introducing a favorable dislocation substructure significantly enhanced the mechanical properties of yield strength, ultimate tensile strength, and ductility, reaching up to 1291 MPa, 1450 MPa, and 17.5%, respectively. The results highlight the influential role of grain size in facilitating the generation of geometrically necessary dislocations during plastic deformation.
DOI	10.1016/j.jallcom.2023.172093
Cilt	968

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Addressing the strength-ductility trade-off in a thermomechanical-processed high entropy alloy

Yazar Radi, Amin, Işıl, Canay, Seyedmohammadi, Seyedveghar, Kim, H. S., Yapıcı, Güney Güven

Basım Tarihi 2023-12-15

Basım Yeri - Elsevier

Konu Ductility, High entropy alloy, Multi-phase, Nano-indentation, Strength, Thermomechanical processing

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 0925-8388

Kayıt Numarası 86647ea3-5aef-4ed0-90d0-d8052e998318

Lokasyon Mechanical Engineering

Tarih 2023-12-15

Notlar BAGEP Award of the Science Academy, Turkiye

Örnek Metin High entropy alloys (HEAs) have garnered significant attention due to their exceptional mechanical behavior. However, the influence of secondary phases and dislocation substructures has yet to be thoroughly investigated. This study focuses on the incorporation of the decomposed η-phase within a face-centered cubic (FCC) microstructure at different recrystallization levels, aiming to achieve adequate ductility while maintaining strength at gigapascal levels. Various characterization techniques were employed to analyze the microstructure of both homogenized and annealed+aged conditions. Implementing a sub-micron grain size distribution and introducing a favorable dislocation substructure significantly enhanced the mechanical properties of yield strength, ultimate tensile strength, and ductility, reaching up to 1291 MPa, 1450 MPa, and 17.5%, respectively. The results highlight the influential role of grain size in facilitating the generation of geometrically necessary dislocations during plastic deformation.

DOI 10.1016/j.jallcom.2023.172093

Cilt 968