Browsing by Author "Radi, Amin"
Now showing items 1-13 of 13
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Addressing the strength-ductility trade-off in a thermomechanical-processed high entropy alloy
Radi, Amin; Işıl, Canay; Seyedmohammadi, Seyedveghar; Kim, H. S.; Yapıcı, Güney Güven (Elsevier, 2023-12-15)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. ... -
Advanced surface enhancement of a high strength aluminum alloy through friction stir processing
Ghobadlou, Ali Hosseınzadeh; Radi, Amin; Yapıcı, Güney Güven (Springer, 2022)The current study investigates the effect of severe plastic deformation (SPD) on the mechanical behavior of a commercial aluminum alloy (Al7075). In-process cooled friction stir processing (FSP) was used to enhance the ... -
Design and processing of multi-phase high entropy alloys
The multi-principal element alloys (MPEAs) known as high- and medium-entropy alloys possess promising properties due to their highly distorted atomic crystal structures. Employing multi-elements as principal elements has ... -
Effect of a multi-phase structure on the damping response of a novel high entropy alloy
Işıl, Canay; Radi, Amin; Seyedmohammadi, Seyedveghar; Yapıcı, Güney Güven (Elsevier, 2022-12-01)In this study, dynamic behavior of a novel multi-phase high entropy alloy (HEA) was investigated. Thermo-mechanical processes containing an 80 % thickness reduction at room temperature rolling followed by annealing at 750 ... -
Effect of stress aging induced precipitates on corrosion behavior of NiTi shape memory alloys
Radi, Amin; Khalil-Allafi, J.; Heidarzadeh, A.; Yapıcı, Güney Güven; Etminanfar, M. R. (Springer, 2021-10)In this study, the influences of the stress aging process on the electrochemical behaviors toward evaluating corrosion resistance of NiTi shape memory alloys in the in-vitro condition have been investigated. For this ... -
Effects of aging on the microstructure and phase transformation behavior of cu-al-mn shape memory alloy
Seyedmohammadi, Seyedveghar; Radi, Amin; Yapıcı, Güney Güven (Trans Tech Publications Ltd, 2021)In the present study, the effects of artificial aging heat treatment on the transformation temperatures and hardness of Cu-Al-Mn shape memory alloy have been investigated. The aging processes have been performed on the ... -
Formation of nano-sized compounds during friction stir welding of Cu–Zn alloys: effect of tool composition
Heidarzadeh, A.; Radi, Amin; Yapıcı, Güney Güven (Elsevier, 2020-12)For the first time, the origin of tool composition effect on microstructure and mechanical properties of the friction stir welded joints has been disclosed. For this aim, nanoindentation, orientation image microscopy, and ... -
Low-cycle fatigue behavior of friction stir-welded copper joints
Ghobadlou, Ali Hosseinzadeh; Salahi, Salar; Radi, Amin; Sajadifar, Seyed Vahid; Yapıcı, Güney Güven (Springer, 2021-11)Investigation of the fatigue response of friction stir-welded (FSWed) joints is especially important in the design and manufacturing of components with exposure to cyclic loading. In this study, cyclic response of FSWed ... -
On the development of a novel multi-phase high entropy alloy with transformation-induced plasticity effect
Radi, Amin; Asghari-Rad, P.; Kim, H. S.; Yapıcı, Güney Güven (Elsevier, 2022-06-05)In the present work, microstructural evolution, and mechanical behavior of a novel high entropy alloy (HEA) are investigated through thermo-mechanical processing. The homogenized samples possess a single-phase cubic structure ... -
On the low-cycle fatigue behavior of a multi-phase high entropy alloy with enhanced plasticity
Radi, Amin; Sajadifar, S.; Seyedmohammadi, Seyedveghar; Krochmal, M.; Bolender, A.; Wegener, T.; Niendorf, T.; Yapıcı, Güney Güven (Elsevier, 2023-08)A multi-phase non-equiatomic FeCrNiMnCo high entropy alloy (HEA) was fabricated using vacuum induction melting. Thermo-mechanical treatments consisting of cold rolling and annealing at 750 °C and 850 °C were employed to ... -
On the strain rate sensitivity of a TRIP assisted high entropy alloy
Radi, Amin; Duygulu, O.; Işıl, Canay; Yapıcı, Güney Güven (Elsevier, 2023-02-15)In the present work, the strain rate sensitivity is investigated in a novel high entropy alloy with transformation-induced plasticity (TRIP) effect. Herein, it is aimed to reflect the effect of phase constitution on the ... -
Severe plastic deformation as a processing tool for strengthening of additive manufactured alloys
Ghobadlou, Ali Hosseinzadeh; Radi, Amin; Richter, J.; Wegener, T.; Sajadifar, S. V.; Niendorf, T.; Yapıcı, Güney Güven (Elsevier, 2021-08)For the first time, the novel combination of multi-pass equal channel angular extrusion/pressing (ECAE/P) and selective laser melting (SLM) was investigated. Herein, four passes of ECAP via route Bc at 150 °C were applied ... -
Solid state routes for composite materials production
Heidarzadeh, A.; Radi, Amin; Ghobadlou, Ali Hosseinzadeh; Yapıcı, Güney Güven; Brabazon, D. (Elsevier, 2021)Solid-state methods are frequently used to fabricate metal matrix composites, which usually lead to superior mechanical properties compared to liquid state routes. In this article, different solid-state routes including ...
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