Results 81 to 90 of about 15,204 (234)

Stress-induced Martensitic Transformation and Superelasticity of Alloys: Experiment and Theory

MATERIALS TRANSACTIONS, 2005
The superelasticity of alloys undergoing a stress-induced martensitic transformation is studied in both experimental and theoretical way. Experimental stress–strain dependencies illustrating the different types of superelastic behavior are taken from Ni–Mn–Ga alloys typifying thermoelastic martensites and then modeled theoretically using a statistical ...
L’vov, Victor A., Rudenko, Alexei A., Chernenko, Volodymyr A., Cesari, Eduard, Pons, Jaume, Kanomata, Takeshi   +5 more
openaire   +2 more sources

Flexibilizing inorganic thermoelectrics

FlexMat, EarlyView.
This perspective reviews advances in flexible inorganic thermoelectric materials, covering ductile bulks, thin films, and fibers/yarns. It highlights strategies like warm metalworking, van der Waals material screening, orientation and sandwich engineering, and device integration, offering pathways to combine flexibility and performance for wearable ...
Xiao‐Lei Shi, Nan‐Hai Li, Meng Li, Zhi‐Gang Chen   +3 more
wiley   +1 more source

Entangled single-wire NiTi material: a porous metal with tunable superelastic and shape memory properties

, 2015
NiTi porous materials with unprecedented superelasticity and shape memory were manufactured by self-entangling, compacting and heat treating NiTi wires.
Bouvard, D., Gadot, B., Martinez, O. Riu, Orgéas, L., Rodney, D., Roscoat, S. Rolland du   +5 more
core   +3 more sources

Effect of Heat Treatment Parameters on Microstructure, Hardness, and Corrosion Resistance of Martensitic Stainless Steel X30Cr13 (AISI 420B)

Materials and Corrosion, EarlyView.
The hardness and corrosion resistance of the martensitic stainless steel X30Cr13 depend directly on the applied heat treatment. This article describes and discusses the relationships between alloy composition, thermodynamic phase stabilities, heat treatment parameters, resulting microstructures, and achievable corrosion resistance. To investigate these
Adrian Evia Ocampo, Saskia Roßberg, Jann Rohr, Paul Rosemann   +3 more
wiley   +1 more source

Use of Infrared Thermography for Inspection of Tensile Deformation of Ti-25Nb-0.5O and Ti-25Nb-0.5N Shape Memory Alloys

Proceedings
The stress- or temperature-induced martensitic transformation from the cubic β phase to the orthorhombic α″ phase is responsible for superelasticity or a shape memory effect in Ni-free Ti-based shape memory alloys (SMAs) [...]
Karol M. Golasiński, Michał Maj, Sandra Musiał, Wataru Tasaki, Hee Young Kim   +4 more
doaj   +1 more source

Influence of Strain Rate on the Strain Hardening Behavior of a Lean Duplex Stainless Steel

MetalMat, EarlyView.
The aim of this study was to examine how strain rate influences the compressive strain‐hardening behavior of a lean duplex stainless steel LDX 2101. Microstructural analysis using electron backscatter diffraction (EBSD) revealed a strain‐induced austenite‐to‐martensite transformation.
Akilakps Sawyerr, Eric Kotei T. Addison, Martin Owusu‐Mensah, Abdul Jaleel Mohammed, Daolun Chen   +4 more
wiley   +1 more source

First-principles study of lattice instabilities in the ferromagnetic martensite Ni$_2$MnGa

, 2003
The phonon dispersion relations and elastic constants for ferromagnetic Ni$_2$MnGa in the cubic and tetragonally distorted Heusler structures are computed using density-functional and density-functional perturbation theory within the spin-polarized ...
A. Ayuela, A. Dal Corso, A. Dal Corso, A. Dal Corso, A. Planes, A. Sozinov, A. Zheludev, A. Zheludev, A. Zheludev, A.T. Zayak, Claudia Bungaro, D. Vanderbilt, H.J. Monkhorst, J. Worgull, J.P. Perdew, K. M. Rabe, L. Mañosa, M. Methfessel, M. Pugaczowa-Michalska, O.H. Nielsen, O.H. Nielsen, O.I. Velikokhatny, P.J. Webster, P.J. Webster, R. Tickle, S. Baroni, S. Louie, S.J. Murray, V. Buchelnikov, V.V. Godlevsky, V.V. Martynov, V.V. Martynov, Y. Lee   +32 more
core   +1 more source

Influence of Steel Recycling on Phase Transformation in Medium‐Manganese Third‐Generation Advanced High‐Strength Steels

steel research international, EarlyView.
On the pathway to climate‐neutral steel production, recycling fractions will necessarily increase over time. Since alloying elements will enrich progressively, as they cannot be removed economically from the melt, processes need to be adjusted.
Anindita Chakraborty, Radhakanta Rana, Ulrich Krupp, Alexander Gramlich   +3 more
wiley   +1 more source

Recycling‐Induced Copper Contamination of a 42CrMo4 Quench and Tempering Steel—Scaling and Susceptibility to Hot Shortness

steel research international, EarlyView.
In this study, the susceptibility to copper‐induced hot shortness of the alloy 42CrMo4 is investigated by different hot tensile tests, as well as by a detailed analysis of the formed oxidation products. While an enrichment of metallic copper and a penetration of the grain boundaries are observed, no critical reduction of the tensile test properties can
Alexander Gramlich, Sindokht Shayan, Nima Babaei, Aleksei Klubakov, Lena Patterer, Ulrich Krupp, Hauke Springer   +6 more
wiley   +1 more source

The role of phase interface energy in martensitic transformations: a lattice Monte-Carlo simulation

, 2014
To study martensitic phase transformation we use a micromechanical model based on statistical mechanics. Employing lattice Monte-Carlo simulations and realistic material properties for shape-memory alloys (SMA), we investigate the combined influence of ...
Antretter, Thomas, Cailletaud, Georges, Fischlschweiger, Michael, Yastrebov, Vladislav A.   +3 more
core   +3 more sources