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

Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

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.

Original language	English
Article number	106607
Journal	Intermetallics
Volume	114
DOIs	https://doi.org/10.1016/j.intermet.2019.106607
State	Published - Nov 2019

Bibliographical note

Funding Information:
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 .

Funding Information:
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.

Publisher Copyright:
© 2019 Elsevier Ltd

Keywords

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

ASJC Scopus subject areas

Chemistry (all)
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/j.intermet.2019.106607

Cite this

@article{63ccabb7f2434dd48cb195f4164972e8,

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 = "Funding Information: 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 . Funding Information: 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. Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd",

year = "2019",

month = nov,

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

language = "English",

volume = "114",

}

TY - JOUR

T1 - Effects of deformation temperature and amount on the two-way shape memory effect of solutionized Ni50.8Ti49.2 alloys

AU - Kaya, I.

AU - Acar, E.

AU - Karaca, H. E.

N1 - Funding Information: 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 . Funding Information: 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. Publisher Copyright: © 2019 Elsevier Ltd

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

UR - http://www.scopus.com/inward/record.url?scp=85072023271&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85072023271&partnerID=8YFLogxK

U2 - 10.1016/j.intermet.2019.106607

DO - 10.1016/j.intermet.2019.106607

M3 - Article

AN - SCOPUS:85072023271

SN - 0966-9795

VL - 114

JO - Intermetallics

JF - Intermetallics

M1 - 106607

ER -