Research output: Contribution to journal › Article › peer-review
Influence of the dynamic crystallization conditions on the martensitic transformation in the Ti40.7Hf9.5Ni39.8Cu 10 shape memory alloy. / Resnina, Natalia; Belyaev, Sergey; Shelyakov, Alexander.
In: International Journal of Materials Research, Vol. 100, No. 3, 17.06.2009, p. 356-358.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Influence of the dynamic crystallization conditions on the martensitic transformation in the Ti40.7Hf9.5Ni39.8Cu 10 shape memory alloy
AU - Resnina, Natalia
AU - Belyaev, Sergey
AU - Shelyakov, Alexander
PY - 2009/6/17
Y1 - 2009/6/17
N2 - The article deals with the problem of the influence of the dynamic crystallization conditions on the structure and on the martensitic transformation in amorphous Ti40.7Hf9.5Ni 39.8Cu10 thin ribbons. The crystallization was realized in a DSC apparatus by heating the samples at different heating rates. DSC and X-ray diffraction were employed to study the martensitic transformation and the structure of the crystallized ribbons. The data show that increasing heat rate resulted in an increase in the crystallization temperature, a decrease in the B2 ↔ B19' transformation temperature and an extension of the halfwidth of (110) reflections of the B2 phase. It is concluded that the increase in the heating rate decreases the grain size of the crystalline phase. As the temperature of the B2 → B19' transition depends sensitively on the grain size the heating rate could be used for controlling the characteristics of the phase transformations.
AB - The article deals with the problem of the influence of the dynamic crystallization conditions on the structure and on the martensitic transformation in amorphous Ti40.7Hf9.5Ni 39.8Cu10 thin ribbons. The crystallization was realized in a DSC apparatus by heating the samples at different heating rates. DSC and X-ray diffraction were employed to study the martensitic transformation and the structure of the crystallized ribbons. The data show that increasing heat rate resulted in an increase in the crystallization temperature, a decrease in the B2 ↔ B19' transformation temperature and an extension of the halfwidth of (110) reflections of the B2 phase. It is concluded that the increase in the heating rate decreases the grain size of the crystalline phase. As the temperature of the B2 → B19' transition depends sensitively on the grain size the heating rate could be used for controlling the characteristics of the phase transformations.
KW - Dynamic crystallization
KW - Martensitic transformation
KW - Shape memory alloy
UR - http://www.scopus.com/inward/record.url?scp=66949118186&partnerID=8YFLogxK
U2 - 10.3139/146.110034
DO - 10.3139/146.110034
M3 - Article
AN - SCOPUS:66949118186
VL - 100
SP - 356
EP - 358
JO - International Journal of Materials Research
JF - International Journal of Materials Research
SN - 1862-5282
IS - 3
ER -
ID: 35628688