Research output: Contribution to journal › Article › peer-review
Shape memory effects in porous Ti - 45.0 at.% Ni alloy produced by self-propagating high-temperature synthesis. / Resnina, Natalia; Belyaev, Sergey; Voronkov, Andrey; Badun, Roman.
In: Materials Today: Proceedings, Vol. 4, No. 3PB, 2017, p. 4690-4695.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Shape memory effects in porous Ti - 45.0 at.% Ni alloy produced by self-propagating high-temperature synthesis
AU - Resnina, Natalia
AU - Belyaev, Sergey
AU - Voronkov, Andrey
AU - Badun, Roman
PY - 2017
Y1 - 2017
N2 - One way and two-way shape memory effects were studied on heating and cooling of preliminarily deformed porous Ti - 45.0 at.% Ni alloy produced by self-propagating high-temperature synthesis. The porous samples were initially deformed to different strains at a temperature of 25 °C and then they were subjected to heating and cooling through the temperature range of the martensitic transformations. The maximum given strain during preliminary deformation was 16% because further deformation of the sample resulted in porous sample failure. The results obtained have shown that the functional behavior of porous TiNi alloys differs from the properties of cast TiNi alloy. A strain recovery on heating due to the realization of the one-way shape memory effect, and a strain accumulation on cooling caused by a two-way shape memory effect, were observed if the preliminary strain was equal to 10% or higher. The dependencies of the values of one-way and two-way shape memory effects on preliminarily strain were non-linear; the strain increased significantly when the given strain rose from 7 to 14 %, and hardly changed if the given strain was larger than 14%.
AB - One way and two-way shape memory effects were studied on heating and cooling of preliminarily deformed porous Ti - 45.0 at.% Ni alloy produced by self-propagating high-temperature synthesis. The porous samples were initially deformed to different strains at a temperature of 25 °C and then they were subjected to heating and cooling through the temperature range of the martensitic transformations. The maximum given strain during preliminary deformation was 16% because further deformation of the sample resulted in porous sample failure. The results obtained have shown that the functional behavior of porous TiNi alloys differs from the properties of cast TiNi alloy. A strain recovery on heating due to the realization of the one-way shape memory effect, and a strain accumulation on cooling caused by a two-way shape memory effect, were observed if the preliminary strain was equal to 10% or higher. The dependencies of the values of one-way and two-way shape memory effects on preliminarily strain were non-linear; the strain increased significantly when the given strain rose from 7 to 14 %, and hardly changed if the given strain was larger than 14%.
KW - Martensitic transformation
KW - Porous TiNi alloy
KW - Self-propagating high-temperature synthesis
KW - Shape memory effects
KW - Strain recovery
UR - http://www.scopus.com/inward/record.url?scp=85020883084&partnerID=8YFLogxK
U2 - 10.1016/j.matpr.2017.04.053
DO - 10.1016/j.matpr.2017.04.053
M3 - Article
AN - SCOPUS:85020883084
VL - 4
SP - 4690
EP - 4695
JO - Materials Today: Proceedings
JF - Materials Today: Proceedings
SN - 2214-7853
IS - 3PB
ER -
ID: 9331141