Shape memory behavior of [111]-oriented NiTi single crystals after stress-assisted aging

Irfan Kaya; Hirobumi Tobe; Haluk Ersin Karaca; Emre Acar; Yuriy Chumlyakov

doi:10.1007/s40195-016-0386-1

Shape memory behavior of [111]-oriented NiTi single crystals after stress-assisted aging

Irfan Kaya
, Hirobumi Tobe
, Haluk Ersin Karaca
, Emre Acar
, Yuriy Chumlyakov

Producción científica: Article › revisión exhaustiva

24 Citas (Scopus)

Resumen

The shape memory behavior of [111]-oriented Ni₅₁Ti₄₉ (at.%) single crystals was investigated after stressassisted aging at 500 °C for 1.5 h under a compressive stress of -150 MPa. It was found that a single family of Ni₄Ti₃ precipitates with two crystallographically equivalent variants was formed after aging under compressive stress. Stressassisted aging resulted in tensile two-way shape memory effect strain of 1.56% under -5 MPa. Thermal cycling under -600 MPa resulted in a transformation strain of -2.15%, while the subsequent thermal cycling under -5 MPa resulted in a tensile two-way shape memory effect strain of 2.2%.

Idioma original	English
Páginas (desde-hasta)	282-286
Número de páginas	5
Publicación	Acta Metallurgica Sinica (English Letters)
Volumen	29
N.º	3
DOI	https://doi.org/10.1007/s40195-016-0386-1
Estado	Published - mar 2016

Nota bibliográfica

Publisher Copyright:
© 2016 The Chinese Society for Metals and Springer-Verlag Berlin Heidelberg.

Financiación

This work was supported in part by the NASA Fundamental Aeronautics Program, Supersonics Project and the NASA EPSCOR program (Grant No. NNX11AQ31A), and RFBR Project (Grant No. 10-03-0154-a). .

Financiadores	Número del financiador
National Aeronautics and Space Administration	NNX11AQ31A
Russian Foundation for Basic Research	10-03-0154-a

ASJC Scopus subject areas

Metals and Alloys
Industrial and Manufacturing Engineering

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10.1007/s40195-016-0386-1

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title = "Shape memory behavior of [111]-oriented NiTi single crystals after stress-assisted aging",

abstract = "The shape memory behavior of [111]-oriented Ni51Ti49 (at.\%) single crystals was investigated after stressassisted aging at 500 °C for 1.5 h under a compressive stress of -150 MPa. It was found that a single family of Ni4Ti3 precipitates with two crystallographically equivalent variants was formed after aging under compressive stress. Stressassisted aging resulted in tensile two-way shape memory effect strain of 1.56\% under -5 MPa. Thermal cycling under -600 MPa resulted in a transformation strain of -2.15\%, while the subsequent thermal cycling under -5 MPa resulted in a tensile two-way shape memory effect strain of 2.2\%.",

keywords = "Aging treatment, Phase transformations, Precipitation, Shape memory alloy (SMA), Two-way shape memory effect",

author = "Irfan Kaya and Hirobumi Tobe and Karaca, \{Haluk Ersin\} and Emre Acar and Yuriy Chumlyakov",

note = "Publisher Copyright: {\textcopyright} 2016 The Chinese Society for Metals and Springer-Verlag Berlin Heidelberg.",

year = "2016",

month = mar,

doi = "10.1007/s40195-016-0386-1",

language = "English",

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T1 - Shape memory behavior of [111]-oriented NiTi single crystals after stress-assisted aging

AU - Kaya, Irfan

AU - Tobe, Hirobumi

AU - Karaca, Haluk Ersin

AU - Acar, Emre

AU - Chumlyakov, Yuriy

PY - 2016/3

Y1 - 2016/3

N2 - The shape memory behavior of [111]-oriented Ni51Ti49 (at.%) single crystals was investigated after stressassisted aging at 500 °C for 1.5 h under a compressive stress of -150 MPa. It was found that a single family of Ni4Ti3 precipitates with two crystallographically equivalent variants was formed after aging under compressive stress. Stressassisted aging resulted in tensile two-way shape memory effect strain of 1.56% under -5 MPa. Thermal cycling under -600 MPa resulted in a transformation strain of -2.15%, while the subsequent thermal cycling under -5 MPa resulted in a tensile two-way shape memory effect strain of 2.2%.

AB - The shape memory behavior of [111]-oriented Ni51Ti49 (at.%) single crystals was investigated after stressassisted aging at 500 °C for 1.5 h under a compressive stress of -150 MPa. It was found that a single family of Ni4Ti3 precipitates with two crystallographically equivalent variants was formed after aging under compressive stress. Stressassisted aging resulted in tensile two-way shape memory effect strain of 1.56% under -5 MPa. Thermal cycling under -600 MPa resulted in a transformation strain of -2.15%, while the subsequent thermal cycling under -5 MPa resulted in a tensile two-way shape memory effect strain of 2.2%.

KW - Aging treatment

KW - Phase transformations

KW - Precipitation

KW - Shape memory alloy (SMA)

KW - Two-way shape memory effect

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DO - 10.1007/s40195-016-0386-1

M3 - Article

AN - SCOPUS:84962344654

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JO - Acta Metallurgica Sinica (English Letters)

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Shape memory behavior of [111]-oriented NiTi single crystals after stress-assisted aging

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