Results 251 to 260 of about 234,872 (302)

Structure of incommensurate NiTi(Fe)

Physical Review B, 1989
NiTi(Fe) has an incommensurate and a commensurate phase between its low-temperature martensitic and high-temperature CsCl-type structures. Anomalous deviations of the satellite positions in the incommensurate phase have been reported. These deviations have raised doubts about the adequacy of a model based on sinusoidal modulations of the basic ...
, Folkins, , Walker
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Tensile deformation of NiTi wires

Journal of Biomedical Materials Research Part A, 2005
AbstractWe examine the structure and properties of cold drawn Ti‐50.1 at % Ni and Ti‐50.9 at % Ni shape memory alloy wires. Wires with both compositions possess a strong <111> fiber texture in the wire drawing direction, a grain size on the order of micrometers, and a high dislocation density.
Ken, Gall, Jeff, Tyber, Valerie, Brice, Carl P, Frick, Hans J, Maier, Neil, Morgan   +5 more
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Cast NiTi Shape‐Memory Alloys

Advanced Engineering Materials, 2004
The purpose of this study is to build a fundamental understanding of the relationship between the structure and properties of cast nickel‐titanium (NiTi). The structure of the cast material will be analyzed at various scales and will be related to the properties of the cast material such as transformation temperatures, stress‐strain behavior, and ...
Alicia M. Ortega, Carl P. Frick, Jeffrey Tyber, Ken Gall, Hans J. Maier   +4 more
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SLM Additive Manufacturing of NiTi Porous Implants: A Review of Constitutive Models, Finite Element Simulations, Manufacturing, Heat Treatment, Mechanical, and Biomedical Studies

Metals and Materials International, 2023
M. Jalali, Kaivan Mohammadi, M. Movahhedy, F. Karimi, S. Sadrnezhaad, Stanislav V. Chernyshikhin, Igor V. Shishkovsky   +6 more
semanticscholar   +1 more source

Preskočene niti

2022
Autor opisuje širok spektar kazališnih izvedbi: od uprizorenja tekstova suvremenih hrvatskih pisaca, kao što su Mate Matišić, Kristian Novak ili Tena Štivičić, preko recentnih dramatizacija kazališnih klasika, poput Kralja Leara, Tartuffea, Ivanova ili Mačke na vrućem limenom krovu, do analiza niza predstava na EUROKAZ-u ili prikaza osebujne kazališne ...
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Niti and NiTi-TiC composites: Part II. compressive mechanical properties

Metallurgical and Materials Transactions A, 1996
The deformation behavior under uniaxial compression of NiTi containing 0, 10, and 20 vol pct TiC participates is investigated both below and above the matrix martensitic transformation temperature: (1) at room temperature, where the martensitic matrix deforms plastically by slip and/or twinning; and (2) at elevated temperature, where plastic ...
K. L. Fukami-Ushiro, D. Mari, D. C. Dunand   +2 more
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Ausforming of NiTi

Journal of Materials Science, 1999
Lattice defects are introduced into stable austenite (β) by hot rolling up to 70% (in one pass) in a temperature range between 900 > TAF > 340 °C (ausforming (AF)). The changes in microstructure, thermal transformation behavior, as well as normal and anomalous properties in stress-, strain-, and temperature-space were studied.
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Laser spray cladding of porous NiTi coatings on NiTi substrates

Surface and Coatings Technology, 2007
Abstract Laser spray cladding in N 2 -rich atmosphere is a competitive technique for manufacture of porous NiTi shape memory alloy (SMA) and TiN surface film. In order to gain expected porous coating and porosity size, TiH 2 powder was considered to be used as porosity initiating agent, and nitrogen was used for shielding and active nitriding gas ...
Y.Q. Yang, H.C. Man
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Ultra-high fatigue life of NiTi cylinders for compression-based elastocaloric cooling

Applied Physics Letters, 2019
We investigated the fatigue behavior of superelastic polycrystalline NiTi cylinders during reversible partial transformation under cyclic adiabatic compression at 20 Hz with a maximum stress of 800 MPa.
Junyu Chen, Kuo Zhang, Q. Kan, H. Yin, Q. Sun   +4 more
semanticscholar   +1 more source

Microstructure and Strength of NiTi-Nb Eutectic Braze Joining NiTi Wires

Metallurgical and Materials Transactions A, 2015
NiTi wires were brazed together via liquid eutectic formation between NiTi and Nb powders deposited at the wire contact region. The brazed region shows proeutectic NiTi(Nb) in contact with the wires, sandwiching a NiTi-Nb eutectic structure, whose microhardness and stiffness, as characterized via nanoindentation, are higher than the NiTi wires, while ...
Liqiang Wang, Cong Wang, David C. Dunand
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