Exothermal and endothermal effects in porous titanium-nickel alloys

Khodorenko, V. N.; Gyunter, V. É.; Monogenov, A. N.; Yasenchuk, Yu. F.

doi:10.1134/1.1424409

Cited by 12 publications

(6 citation statements)

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“…This fact has been described previously. [40][41][42] For the sintered porous NiTi the specific electrical resistivity exceeds the absolute values r of the cast material more than 20 times, and for the synthesized NiTi more than 40 times. It is known 27,30 in the synthesized NiTi that the other intermetallic phases present have an effect on the measured specific electrical resistivity.…”

Section: Synthesis and Characterisationmentioning

confidence: 98%

Porous biocompatible implants and tissue scaffolds synthesized by selective laser sintering from Ti and NiTi

et al. 2008

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Section: Synthesis and Characterisationmentioning

confidence: 98%

Porous biocompatible implants and tissue scaffolds synthesized by selective laser sintering from Ti and NiTi

et al. 2008

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“…Many efforts have been spent to adjust the SHS method for the production of porous TiNi alloys, and to study the structure and martensitic transformation in these materials [13,14,[16][17][18][19][20][21][22][23][24][25][26][27]. The mechanical behaviour in porous TiNi alloys produced by SHS is studied in [10,13,19,[28][29][30][31][32][33][34][35][36].…”

Section: Introductionmentioning

confidence: 99%

Mechanical behaviour and functional properties of porous Ti-45 at. % Ni alloy produced by self-propagating high-temperature synthesis

Resnina

Belyaev

Voronkov³

et al. 2016

Smart Mater. Struct.

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The mechanical behaviour and shape memory effects were studied in the porous Ti-45.0 at. % Ni alloy produced by self-propagating high-temperature synthesis. It is shown that the porous Ti-45.0 at % Ni alloy is deformed by the same mechanisms as a cast Ti 50 Ni 50 alloy. At low temperatures, the deformation of the porous alloy is realised via martensite reorientation at a low yield limit and by dislocation slip at a high yield limit. At high temperatures (in the austenite B2 phase) the porous Ti-45.0 at % Ni alloy is deformed by the stress-induced martensite at a low yield limit and by dislocation slip at a high yield limit. The pseudoelasticity effect is not found in this alloy, while the transformation plasticity and the shape memory effects are observed on cooling and heating under a constant load. The values of the transformation plasticity, and the shape memory effects, depend linearly on the stress acting on cooling and heating. The temperatures of the martensitic transformation increase linearly when the stress rises up to 80 MPa. The porous Ti-45.0 at % Ni alloy accumulates an irreversible strain on cooling and heating and demonstrates unstable functional behaviour during thermal cycling.

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“…It is evident in fig.4 that intervals of the austenite and martensite transformations are significantly broadened, compared to the cast NiTi. This fact was described in papers [21][22][23] . For sintered porous NiTi the specific electrical resistivity exceeds the absolute values -ρ for the cast material more than ~ 20 times and for the synthesised NiTi more than ~ 40 times.…”

Section: Results Of Experiments and Discussionmentioning

confidence: 75%

Porous surface structure of biocompatible implants and tissue scaffolds base of titanium and nitinol synthesized SLS/M methods

Shishkovsky

Sherbakov

Petriv

et al. 2007

International Conference on Lasers, Applications, and Technologies 2007: Laser Technologies for Medicine

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The objectives of these researches were to investigate the technical fundamentals of synthesizing high-strength biocompatible medical implants and tissue scaffolds made from nitinol or titanium using of Selective Laser Sintering/Melting (SLS/M). In particular, we had been identify the processing parameters and procedures necessary to successfully laser synthesize multi-material and functionally graded implants: the physical and mechanical properties, microstructure, and corrosion behavior of the resulting structures; the shape memory effect in porous layered nitinol structures made using laser synthesis. The comparative morphological and histological results of Selective Laser Sintering of porous titanium and nitinol implants are presented. Studies are conducted also on primary cultures of dermal fibroblasts and mesenchymal stromal human cells of the 4-18 passages. The principle possibility of long cultivating a bone marrow on the porous carrierincubator from NiTi and titanium in vitro was determined. Sufficient understanding of laser synthesized titanium and nitinol structures to determine their suitability for future use as implants, resulting in superior tissue to implant fixation and minimally invasive surgical procedures, was developed.

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Exothermal and endothermal effects in porous titanium-nickel alloys

Cited by 12 publications

References 0 publications

Porous biocompatible implants and tissue scaffolds synthesized by selective laser sintering from Ti and NiTi

Porous biocompatible implants and tissue scaffolds synthesized by selective laser sintering from Ti and NiTi

Mechanical behaviour and functional properties of porous Ti-45 at. % Ni alloy produced by self-propagating high-temperature synthesis

Porous surface structure of biocompatible implants and tissue scaffolds base of titanium and nitinol synthesized SLS/M methods

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