Результаты исследований: Научные публикации в периодических изданиях › статья
Pre-martensitic phenomena in Ti40.7Hf9.5Ni44.8Cu5 shape memory alloy. / Resnina, N.; Belyaev, S.; Shelyakov, A.; Rubanik, V.; Rubanik, V. Jr.; Konopleva, R.; Chekanov, V.; Ubyivovk, E.; Krzhizhanovskaya, M.
в: Intermetallics, Том 67, № 17, 2015, стр. 69-74.Результаты исследований: Научные публикации в периодических изданиях › статья
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TY - JOUR
T1 - Pre-martensitic phenomena in Ti40.7Hf9.5Ni44.8Cu5 shape memory alloy
AU - Resnina, N.
AU - Belyaev, S.
AU - Shelyakov, A.
AU - Rubanik, V.
AU - Rubanik, V. Jr.
AU - Konopleva, R.
AU - Chekanov, V.
AU - Ubyivovk, E.
AU - Krzhizhanovskaya, M.
PY - 2015
Y1 - 2015
N2 - Pre-martensitic phenomena such as abnormal resistivity growth, diffusion scattering, "tweed" contrast and internal friction peak were observed in Ti40.7Hf9.5Ni44.8Cu5 alloy prior to the forward martensitic transformation on cooling. It was shown that all the observed phenomena were due to the formation of quasi-static strain nanodomains in the B2 phase prior to the forward martensitic transformation. This led to accumulation of the elastic energy before the phase transition and resulted in the variation in thermodynamic balance for the forward martensitic transformation and, as a result, influenced the parameters of the phase transition. The appearance of elastic energy prior to the forward transformation caused a decrease in the forward and reverse martensitic transformations' start temperatures, a widening of the temperature range of the reverse transformation and an increase in the hysteresis of the transformation. © 2015 Elsevier Ltd. All rights reserved.
AB - Pre-martensitic phenomena such as abnormal resistivity growth, diffusion scattering, "tweed" contrast and internal friction peak were observed in Ti40.7Hf9.5Ni44.8Cu5 alloy prior to the forward martensitic transformation on cooling. It was shown that all the observed phenomena were due to the formation of quasi-static strain nanodomains in the B2 phase prior to the forward martensitic transformation. This led to accumulation of the elastic energy before the phase transition and resulted in the variation in thermodynamic balance for the forward martensitic transformation and, as a result, influenced the parameters of the phase transition. The appearance of elastic energy prior to the forward transformation caused a decrease in the forward and reverse martensitic transformations' start temperatures, a widening of the temperature range of the reverse transformation and an increase in the hysteresis of the transformation. © 2015 Elsevier Ltd. All rights reserved.
KW - Differential scanning calorimetry
KW - Diffraction/scattering (electron, neutron and X-ray)
KW - Martensitic transformation
KW - Point defects
KW - Shape-memory alloys
U2 - 10.1016/j.intermet.2015.07.018
DO - 10.1016/j.intermet.2015.07.018
M3 - Article
VL - 67
SP - 69
EP - 74
JO - Intermetallics
JF - Intermetallics
SN - 0966-9795
IS - 17
ER -
ID: 3943344