Effect of electroplastic rolling on the ductility and superelasticity of TiNi shape memory alloy

R. F. Zhu; G. Y. Tang; San-Qiang Shi; Mingwang Fu

doi:10.1016/j.matdes.2012.08.045

Effect of electroplastic rolling on the ductility and superelasticity of TiNi shape memory alloy

R. F. Zhu, G. Y. Tang, San-Qiang Shi, Mingwang Fu

Research output: Journal article publication › Journal article › Academic research › peer-review

56 Citations (Scopus)

Abstract

The brittle TiNi shape memory alloy strips were processed by electroplastic rolling (EPR) without intermediate annealing. The maximum thickness reduction of the alloy strip in the individual EPR pass can be 21.6% and the total deformation in terms of thickness reduction can reach 74% in the seven passes of EPR processing. The ductility of the TiNi alloy is enhanced by electropulse due to the dynamic recrystallization in the process. The rolling separating force in EPR drops compared to the cold rolling. Furthermore, the EPR processed TiNi after annealing exhibits an excellent superelasticity and the recoverable strain of 6% is obtained.

Original language	English
Pages (from-to)	606-611
Number of pages	6
Journal	Materials and Design
Volume	44
DOIs	https://doi.org/10.1016/j.matdes.2012.08.045
Publication status	Published - 1 Jan 2013

Keywords

Ductility
Electroplastic rolling
Shape memory alloy
Superelasticity

ASJC Scopus subject areas

General Materials Science
Mechanics of Materials
Mechanical Engineering

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10.1016/j.matdes.2012.08.045

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title = "Effect of electroplastic rolling on the ductility and superelasticity of TiNi shape memory alloy",

abstract = "The brittle TiNi shape memory alloy strips were processed by electroplastic rolling (EPR) without intermediate annealing. The maximum thickness reduction of the alloy strip in the individual EPR pass can be 21.6% and the total deformation in terms of thickness reduction can reach 74% in the seven passes of EPR processing. The ductility of the TiNi alloy is enhanced by electropulse due to the dynamic recrystallization in the process. The rolling separating force in EPR drops compared to the cold rolling. Furthermore, the EPR processed TiNi after annealing exhibits an excellent superelasticity and the recoverable strain of 6% is obtained.",

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AU - Zhu, R. F.

AU - Tang, G. Y.

AU - Shi, San-Qiang

AU - Fu, Mingwang

PY - 2013/1/1

Y1 - 2013/1/1

N2 - The brittle TiNi shape memory alloy strips were processed by electroplastic rolling (EPR) without intermediate annealing. The maximum thickness reduction of the alloy strip in the individual EPR pass can be 21.6% and the total deformation in terms of thickness reduction can reach 74% in the seven passes of EPR processing. The ductility of the TiNi alloy is enhanced by electropulse due to the dynamic recrystallization in the process. The rolling separating force in EPR drops compared to the cold rolling. Furthermore, the EPR processed TiNi after annealing exhibits an excellent superelasticity and the recoverable strain of 6% is obtained.

AB - The brittle TiNi shape memory alloy strips were processed by electroplastic rolling (EPR) without intermediate annealing. The maximum thickness reduction of the alloy strip in the individual EPR pass can be 21.6% and the total deformation in terms of thickness reduction can reach 74% in the seven passes of EPR processing. The ductility of the TiNi alloy is enhanced by electropulse due to the dynamic recrystallization in the process. The rolling separating force in EPR drops compared to the cold rolling. Furthermore, the EPR processed TiNi after annealing exhibits an excellent superelasticity and the recoverable strain of 6% is obtained.

KW - Ductility

KW - Electroplastic rolling

KW - Shape memory alloy

KW - Superelasticity

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DO - 10.1016/j.matdes.2012.08.045

M3 - Journal article

SN - 0264-1275

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SP - 606

EP - 611

JO - Materials and Design

JF - Materials and Design

ER -

Effect of electroplastic rolling on the ductility and superelasticity of TiNi shape memory alloy

Abstract

Keywords

ASJC Scopus subject areas

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