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View article: On the Impact of Thermal Treatments on the Shape Memory Effect of $$\langle {001}\rangle$$-Oriented Fe–Ni–Co–Al–Ti Single Crystals
On the Impact of Thermal Treatments on the Shape Memory Effect of $$\langle {001}\rangle$$-Oriented Fe–Ni–Co–Al–Ti Single Crystals Open
This study presents a comprehensive and systematic assessment of the impact of aging heat treatments on the functional actuation response in 〈001〉-oriented Fe–Ni–Co–Al–Ti single crystals. The results demonstrate that excellent functional p…
View article: Impact of Thermomechanical Processing on the Functional Properties of Fe–Ni–Co–Al–Ti–B Shape Memory Alloys
Impact of Thermomechanical Processing on the Functional Properties of Fe–Ni–Co–Al–Ti–B Shape Memory Alloys Open
Iron-based shape memory alloys (SMAs) are promising alternatives to conventional SMA candidates such as Ni–Ti regarding cost-efficiency. The present study investigates cold-rolled Fe–Ni–Co–Al–Ti–B samples subjected to different recrystalli…
View article: Observation of the Tetragonal-Orthorhombic transition in polycrystalline YBa$_2$Cu$_3$O$_{6+δ}$ samples during the oxidation process at constant temperature via thermogravimetry and differential thermometry analysis
Observation of the Tetragonal-Orthorhombic transition in polycrystalline YBa$_2$Cu$_3$O$_{6+δ}$ samples during the oxidation process at constant temperature via thermogravimetry and differential thermometry analysis Open
This work examines the oxygenation process of polycrystalline powder of YBa$_2$Cu$_3$O$_{6+δ}$ superconductor material through constant temperature thermogravimetric analysis. Starting from completely deoxygenated samples ($δ$ = 0), both t…
View article: Cyclic Superelastic Behavior of Iron-Based Fe-Ni-Co-Al-Ti-Nb Shape Memory Alloy
Cyclic Superelastic Behavior of Iron-Based Fe-Ni-Co-Al-Ti-Nb Shape Memory Alloy Open
Iron-based shape memory alloys came into focus as promising candidate materials for large-scale structural applications owing to their cost-efficiency. In the present work, the superelastic properties of a recently introduced Fe-Ni-Co-Al-T…
View article: Additive Manufacturing of Binary Ni–Ti Shape Memory Alloys Using Electron Beam Powder Bed Fusion: Functional Reversibility Through Minor Alloy Modification and Carbide Formation
Additive Manufacturing of Binary Ni–Ti Shape Memory Alloys Using Electron Beam Powder Bed Fusion: Functional Reversibility Through Minor Alloy Modification and Carbide Formation Open
Shape memory alloys (SMAs), such as Ni–Ti, are promising candidates for actuation and damping applications. Although processing of Ni–Ti bulk materials is challenging, well-established processing routes (i.e. casting, forging, wire drawing…
View article: Effects of Mangosteen Peel Phenolic Compounds on Tilapia Skin Collagen-Based Mineralized Scaffold Properties
Effects of Mangosteen Peel Phenolic Compounds on Tilapia Skin Collagen-Based Mineralized Scaffold Properties Open
A proper valorization of biological waste sources for an effective conversion into composites for tissue engineering is discussed in this study. Hence, the collagen and the phenolic compound applied in this investigation were extracted fro…
View article: On the Microstructural and Cyclic Mechanical Properties of Pure Iron Processed by Electron Beam Melting
On the Microstructural and Cyclic Mechanical Properties of Pure Iron Processed by Electron Beam Melting Open
Additive manufacturing (AM) processes such as electron beam melting (EBM) are characterized by unprecedented design freedom. Topology optimization and design of the microstructure of metallic materials are enabled by rapid progress in this…
View article: On the Impact of Texture and Grain Size on the Pseudoelastic Properties of Polycrystalline Fe–Ni–Co–Al–Ti Alloy
On the Impact of Texture and Grain Size on the Pseudoelastic Properties of Polycrystalline Fe–Ni–Co–Al–Ti Alloy Open
The effects of thermomechanical treatments on crystallographic texture and grain size evolution and their impact on the pseudoelastic properties in Fe 41 –Ni 28 –Co 17 –Al 11.5 –Ti 2.5 (at.%) were studied in the present paper. The results …
View article: Crystallographic orientation relationships in the α→γ′ martensitic transformation in an Fe–Mn–Al–Ni system
Crystallographic orientation relationships in the α→γ′ martensitic transformation in an Fe–Mn–Al–Ni system Open
The Fe 43.5 Mn 34 Al 15 Ni 7.5 (at.%) alloy exhibits outstanding pseudoelastic behaviour over a wide range of temperatures. This alloy undergoes an unusual martensitic transformation from a disordered body-centred cubic (α) parent phase to…
View article: Is it Possible to Use Rolling Methods to Improve Textures on Fe–Mn–Si Shape Memory Alloys?
Is it Possible to Use Rolling Methods to Improve Textures on Fe–Mn–Si Shape Memory Alloys? Open
No uniform rolling deformation produces shear strains that give rise to textural and microstructural heterogeneities in processed metals and alloys. In this work, the authors investigate Fe–30Mn–4Si shape memory alloy sheets rolled in diff…
View article: Design, construction, and performance of a device for directional recrystallization of metallic alloys
Design, construction, and performance of a device for directional recrystallization of metallic alloys Open
A device was designed to apply the directional recrystallization method to Fe-based alloys in order to obtain bamboo-like microstructures. This microstructure is suitable for improving creep properties and resistance to fatigue in some all…
View article: MICROSTRUCTURAL AND TEXTURE STUDY IN Fe43.5Mn34Al15Ni7.5 SHAPE MEMORY ALLOY
MICROSTRUCTURAL AND TEXTURE STUDY IN Fe43.5Mn34Al15Ni7.5 SHAPE MEMORY ALLOY Open
Fe alloy 43.5Mn34Al15Ni7.5 recently discovered, has pseudoplastic behavior in a wide temperature range. This characteristic is attractive for automobile, space, cryogenic and seismic applications. Currently there is no comprehensive analys…
View article: Grain Size Effect on the Thermal-induced Martensitic Transformation in Polycrystalline Cu-based Shape Memory Alloys
Grain Size Effect on the Thermal-induced Martensitic Transformation in Polycrystalline Cu-based Shape Memory Alloys Open
In Cu-based SMA alloys, the grain size (d) effect on the martensitic transformation temperature was investigated for a wide range of d. Specimens were prepared by different heat treatments in order to create a range of grain sizes, from ab…
View article: Effects of B2 nanoprecipitates on the phase stability and pseudoelastic behavior of Fe-Mn-Al-Ni shape memory alloys
Effects of B2 nanoprecipitates on the phase stability and pseudoelastic behavior of Fe-Mn-Al-Ni shape memory alloys Open
Samples of a Fe-Mn36-Al15-Ni7.5 shape memory alloy were subjected to different thermal treatments at 200ºC (namely for 0 min, 10 min, 20 min and 3 h) in order to evaluate the evolution of the coherent precipitates related to the pseudoelas…
View article: Core Microstructure and Strain State Analysis in MgB<sub>2</sub>Wires with Different Metal Sheaths
Core Microstructure and Strain State Analysis in MgB<sub>2</sub>Wires with Different Metal Sheaths Open
We present a detailed analysis of the effect of the sheath materials on the microstructure and superconducting properties of MgB 2 wires produced by the powder-in-tube method (PIT). We reduced commercial MgB 2 powder by attrition milling i…