Results 51 to 60 of about 78,988 (296)

Ion polishing as a method of imaging the magnetic structures in CoNiGa monocrystal

Results in Physics, 2018
Magnetic domain structure of magnetic shape memory alloy was observed using backscattered electron detector in scanning electron microscope and using Fresnel imaging in transmission electron microscope.
Andrzej Żak, Amadeusz Łaszcz, Mariusz Hasiak, Gregory Gerstein, Hans Jürgen Maier, Wlodzimierz Dudzinski   +5 more
doaj   +1 more source

First principles characterization of reversible martensitic transformations

, 2018
Reversible martensitic transformations (MTs) are the origin of many fascinating phenomena, including the famous shape memory effect. In this work, we present a fully ab initio procedure to characterize MTs in alloys and to assess their reversibility ...
Drautz, Ralf, Ferrari, Alberto, Rogal, Jutta, Sangiovanni, Davide G.   +3 more
core   +1 more source

Laser Melting of Ti-Ni Shape Memory Alloy [PDF]

, 2003
The applicability of laser melting in fabrication of Ti-Ni shape memory alloy was investigated experimentally. Elemental powders of Ti and Ni and mechanically alloyed (MA) TiNi powder were used to fabricate specimens.
Bourell, David L., Kyogoku, Hideki, Ramos, Jorge A.   +2 more
core   +1 more source

Elinvar Materials: Recent Progress and Challenges

Advanced Engineering Materials, EarlyView.
Elinvar materials, exhibiting temperature‐invariant elastic modulus, are critical for precision instruments and emerging technologies. This article reviews recent progress in the field, with a focus on the anomalous thermoelastic behavior observed in key material systems.
Wenjie Li, Yang Ren
wiley   +1 more source

Deep Drawing of a Ni-Ti Shape Memory Alloy Sheet

MATEC Web of Conferences, 2018
This study is aimed to investigate the properties of Ni-rich Ni-Ti shape memory alloy sheet parts during and after deep drawing process at room temperature, in which the metal is under plane tension-compression stress state.
Fann Kuang-Jau, Chang Chun-Hao
doaj   +1 more source

A Thermodynamic 3D Model for the Simulation of Diffusion‐Controlled Alloying Processes in Heterogeneous Material Structures

Advanced Engineering Materials, EarlyView.
A numerical model resulting from irreversible thermodynamics for describing transport processes is introduced, focusing on thermodynamic activity gradients as the actual driving force for diffusion. Implemented in CUDA C++ and using CalPhaD methods for determining the necessary activity data, the model accurately simulates interdiffusion in aluminum ...
Ulrich Holländer, Leonhard Holländer, André Langohr, Hans Jürgen Maier   +3 more
wiley   +1 more source

Multifunctional coatings of nickel-titanium implant toward promote osseointegration after operation of bone tumor and clinical application: a review

Frontiers in Bioengineering and Biotechnology
Metal implants, especially Ni-Ti shape memory alloy (Ni-Ti SMA) implants, have increasingly become the first choice for fracture and massive bone defects after orthopedic bone tumor surgery.
Tianhao Du, Tianhao Du, Jia Liu, Jinhan Dong, Haoxu Xie, Haoxu Xie, Xiao Wang, Xiao Wang, Xu Yang, Yingxin Yang   +9 more
doaj   +1 more source

Elastic and thermodynamic properties of the shape-memory alloy AuZn

, 2001
The current work reports on the elastic shear moduli, internal friction, and the specific heat of the B2 cubic ordered alloy AuZn as a function of temperature. Measurements were made on single-crystal and polycrystalline samples using Resonant Ultrasound
A. Migliori, B. E. Lang, B. F.Woodfield, D. J. Thoma, F. Chu, J. Boerio-Goates, J. C. Lashley, M. Lopez, T. W. Darling   +8 more
core   +1 more source

Optimization of a pseudoelastic absorber for vibration mitigation [PDF]

, 2017
Damic vibration absorbers (DVAs) have received special attention in recent years due to their capability to reduce structural vibrations of a primary structure.
Bernardini, Davide, Piccirillo, Vinã­cius, Rega, Giuseppe   +2 more
core   +1 more source

Tribological Performance of 60NiTi Alloy Under Varying Contact Conditions and Elevated Temperatures in Linear Reciprocating Sliding

Advanced Engineering Materials, EarlyView.
This study investigates the tribological response of 60NiTi alloy under dry, water‐lubricated and high‐temperature conditions. The alloy exhibits decreasing wear volume and friction with increasing temperature due to the formation of protective oxide layers. The work clarifies dominant wear mechanisms and demonstrates the suitability of 60NiTi for high‐
Anthony Onyebuchi Okoani, Miguel Angel Selles, Maziar Ramezani   +2 more
wiley   +1 more source