Relationship between the variation in transformation temperatures, resistivity and dislocation density during thermal cycling of Ni50Ti50 shape memory alloy

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Relationship between the variation in transformation temperatures, resistivity and dislocation density during thermal cycling of Ni₅₀Ti₅₀ shape memory alloy. / Sibirev, Alexey ; Resnina, Natalia ; Belyaev, Sergey.

в: International Journal of Materials Research, Том 110, № 5, 01.05.2019, стр. 387-392.

Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование

BibTeX

@article{d30fec7658bb4cab9c4ef1e1f63dbaa4,

title = "Relationship between the variation in transformation temperatures, resistivity and dislocation density during thermal cycling of Ni50Ti50 shape memory alloy",

abstract = "The aim of the present work is to find the relationship between a decrease in transformation temperature and an increase in dislocation density during thermal cycling of NiTi alloy. The resistivity is used as a measure of the dislocation density variation and it allows one to find a linear dependence of the increment in the transformation temperatures on the dislocation density variation starting with the fifth thermal cycle. It is found that the thermal cycling of NiTi alloy within a temperature range of 473 to 273 K is accompanied by less dislocation density variation than in a range of 413 to 273 K. The dependence of transformation temperatures on increase in dislocation density in the first five cycles is not linear, hence it is concluded that the dislocation density variation is not the unique reason for a decrease in transformation temperature during the thermal cycling of equiatomic NiTi alloy.",

keywords = "Dislocation density, Martensitic transformations, Resistivity, Shape memory alloys, Thermal cycling",

author = "Alexey Sibirev and Natalia Resnina and Sergey Belyaev",

year = "2019",

month = may,

day = "1",

doi = "10.3139/146.111755",

language = "English",

volume = "110",

pages = "387--392",

journal = "International Journal of Materials Research",

issn = "1862-5282",

publisher = "Carl Hanser Verlag GmbH & Co. KG",

number = "5",

}

RIS

TY - JOUR

T1 - Relationship between the variation in transformation temperatures, resistivity and dislocation density during thermal cycling of Ni50Ti50 shape memory alloy

AU - Sibirev, Alexey

AU - Resnina, Natalia

AU - Belyaev, Sergey

PY - 2019/5/1

Y1 - 2019/5/1

N2 - The aim of the present work is to find the relationship between a decrease in transformation temperature and an increase in dislocation density during thermal cycling of NiTi alloy. The resistivity is used as a measure of the dislocation density variation and it allows one to find a linear dependence of the increment in the transformation temperatures on the dislocation density variation starting with the fifth thermal cycle. It is found that the thermal cycling of NiTi alloy within a temperature range of 473 to 273 K is accompanied by less dislocation density variation than in a range of 413 to 273 K. The dependence of transformation temperatures on increase in dislocation density in the first five cycles is not linear, hence it is concluded that the dislocation density variation is not the unique reason for a decrease in transformation temperature during the thermal cycling of equiatomic NiTi alloy.

AB - The aim of the present work is to find the relationship between a decrease in transformation temperature and an increase in dislocation density during thermal cycling of NiTi alloy. The resistivity is used as a measure of the dislocation density variation and it allows one to find a linear dependence of the increment in the transformation temperatures on the dislocation density variation starting with the fifth thermal cycle. It is found that the thermal cycling of NiTi alloy within a temperature range of 473 to 273 K is accompanied by less dislocation density variation than in a range of 413 to 273 K. The dependence of transformation temperatures on increase in dislocation density in the first five cycles is not linear, hence it is concluded that the dislocation density variation is not the unique reason for a decrease in transformation temperature during the thermal cycling of equiatomic NiTi alloy.

KW - Dislocation density

KW - Martensitic transformations

KW - Resistivity

KW - Shape memory alloys

KW - Thermal cycling

UR - http://www.scopus.com/inward/record.url?scp=85069039433&partnerID=8YFLogxK

U2 - 10.3139/146.111755

DO - 10.3139/146.111755

M3 - Article

VL - 110

SP - 387

EP - 392

JO - International Journal of Materials Research

JF - International Journal of Materials Research

SN - 1862-5282

IS - 5

ER -

ID: 38698362