Research output: Contribution to journal › Article › peer-review
The influence of the doping elements on the structure and the martensitic transformations in the Ti50-2xHfxZrxNi50-2xCuxCox shape memory alloys. / Resnina, Natalia; Belyaev, Sergey; Bazlov, Andrey; Sibirev, Alexey; Ponikarova, Irina; Ivanov, Aleksei; Bikbaev, Rashid.
In: Materials Letters, Vol. 333, 133670, 15.02.2023.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - The influence of the doping elements on the structure and the martensitic transformations in the Ti50-2xHfxZrxNi50-2xCuxCox shape memory alloys
AU - Resnina, Natalia
AU - Belyaev, Sergey
AU - Bazlov, Andrey
AU - Sibirev, Alexey
AU - Ponikarova, Irina
AU - Ivanov, Aleksei
AU - Bikbaev, Rashid
PY - 2023/2/15
Y1 - 2023/2/15
N2 - The structure and the martensitic transformation were studied in the Ti50-2xHfxZrxNi50-2xCuxCox alloys. An increase in X parameter from 1 to 17 changed the configuration entropy from 0.89R (low-entropy alloy) to 1.79R (high-entropy alloy). All alloys crystallized in (Ti,Hf,Zr)50(Ni,Cu,Co)50 phase which occupied more than 90 % of the volume. The chemical composition and the volume fraction of precipitates depended on X parameter. If X is equal to 10, (Ti,Hf,Zr)2(Ni,CuCo) particles were observed; if X = 17, the (Ni,Cu,Co)4(Ti,Hf,Zr)3 precipitates were found. An increase in X parameter decreased the temperatures of the martensitic transformation. If X ≥ 10, the martensitic transformation was not found on cooling to −170 °C.
AB - The structure and the martensitic transformation were studied in the Ti50-2xHfxZrxNi50-2xCuxCox alloys. An increase in X parameter from 1 to 17 changed the configuration entropy from 0.89R (low-entropy alloy) to 1.79R (high-entropy alloy). All alloys crystallized in (Ti,Hf,Zr)50(Ni,Cu,Co)50 phase which occupied more than 90 % of the volume. The chemical composition and the volume fraction of precipitates depended on X parameter. If X is equal to 10, (Ti,Hf,Zr)2(Ni,CuCo) particles were observed; if X = 17, the (Ni,Cu,Co)4(Ti,Hf,Zr)3 precipitates were found. An increase in X parameter decreased the temperatures of the martensitic transformation. If X ≥ 10, the martensitic transformation was not found on cooling to −170 °C.
KW - High entropy alloy
KW - Martensitic transformation
KW - Shape memory alloy
UR - https://www.mendeley.com/catalogue/1c852ba5-ccda-36b5-83bc-12a33097f075/
U2 - 10.1016/j.matlet.2022.133670
DO - 10.1016/j.matlet.2022.133670
M3 - Article
VL - 333
JO - Materials Letters
JF - Materials Letters
SN - 0167-577X
M1 - 133670
ER -
ID: 103210357