Effects of deformation temperature and amount on the two-way shape memory effect of solutionized Ni50.8Ti49.2 alloys

I. Kaya; E. Acar; H. E. Karaca

doi:10.1016/j.intermet.2019.106607

Effects of deformation temperature and amount on the two-way shape memory effect of solutionized Ni_50.8Ti_49.2 alloys

I. Kaya
, E. Acar
, H. E. Karaca

Producción científica: Article › revisión exhaustiva

9 Citas (Scopus)

Resumen

Temperature dependent compressive response and two-way shape memory effect (TWSME) of Ni_50.8Ti_49.2 (at.%) shape memory alloys were systematically investigated. It was found that solutionized Ni_50.8Ti_49.2 alloys could show positive and negative TWSME if they are plastically deformed in martensite and austenite (above M_d), respectively. The maximum positive TWSME strain was 1.4% after martensite deformation of 8% at −90 °C and maximum negative TWSME strain of 0.5% was obtained after austenite deformation of 8% at 200 °C.

Idioma original	English
Número de artículo	106607
Publicación	Intermetallics
Volumen	114
DOI	https://doi.org/10.1016/j.intermet.2019.106607
Estado	Published - nov 2019

Nota bibliográfica

Publisher Copyright:
© 2019 Elsevier Ltd

Financiación

This work was supported by Eskisehir Technical University BAP (Scientific research project) Department (Project No: 1706F382 and 19ADP141 ), NSF CMMI-15-38665 and Erciyes University under grant number FBA-2017-7604 . This work was supported by Eskisehir Technical University BAP (Scientific research project) Department (Project No:1706F382 and 19ADP141), NSF CMMI-15-38665 and Erciyes University under grant number FBA-2017-7604.

Financiadores	Número del financiador
Eskisehir Technical University BAP
National Science Foundation (NSF)	CMMI-15-38665
Eskişehir Teknik Üniversitesi	1706F382, 19ADP141
Erciyes Üniversitesi	FBA-2017-7604

ASJC Scopus subject areas

General Chemistry
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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title = "Effects of deformation temperature and amount on the two-way shape memory effect of solutionized Ni50.8Ti49.2 alloys",

abstract = "Temperature dependent compressive response and two-way shape memory effect (TWSME) of Ni50.8Ti49.2 (at.\%) shape memory alloys were systematically investigated. It was found that solutionized Ni50.8Ti49.2 alloys could show positive and negative TWSME if they are plastically deformed in martensite and austenite (above Md), respectively. The maximum positive TWSME strain was 1.4\% after martensite deformation of 8\% at −90 °C and maximum negative TWSME strain of 0.5\% was obtained after austenite deformation of 8\% at 200 °C.",

keywords = "Mechanical testing, NiTi, Phase transformation, R-phase, Shape–memory alloys, Two-way shape memory effect",

author = "I. Kaya and E. Acar and Karaca, \{H. E.\}",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd",

year = "2019",

month = nov,

doi = "10.1016/j.intermet.2019.106607",

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AU - Kaya, I.

AU - Acar, E.

AU - Karaca, H. E.

PY - 2019/11

Y1 - 2019/11

N2 - Temperature dependent compressive response and two-way shape memory effect (TWSME) of Ni50.8Ti49.2 (at.%) shape memory alloys were systematically investigated. It was found that solutionized Ni50.8Ti49.2 alloys could show positive and negative TWSME if they are plastically deformed in martensite and austenite (above Md), respectively. The maximum positive TWSME strain was 1.4% after martensite deformation of 8% at −90 °C and maximum negative TWSME strain of 0.5% was obtained after austenite deformation of 8% at 200 °C.

AB - Temperature dependent compressive response and two-way shape memory effect (TWSME) of Ni50.8Ti49.2 (at.%) shape memory alloys were systematically investigated. It was found that solutionized Ni50.8Ti49.2 alloys could show positive and negative TWSME if they are plastically deformed in martensite and austenite (above Md), respectively. The maximum positive TWSME strain was 1.4% after martensite deformation of 8% at −90 °C and maximum negative TWSME strain of 0.5% was obtained after austenite deformation of 8% at 200 °C.

KW - Mechanical testing

KW - NiTi

KW - Phase transformation

KW - R-phase

KW - Shape–memory alloys

KW - Two-way shape memory effect

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