Two-way indent depth recovery in a NiTi shape memory alloy

Yijun Zhang; Yang Tse Cheng; David S. Grummon

doi:10.1063/1.2189201

Two-way indent depth recovery in a NiTi shape memory alloy

Yijun Zhang
, Yang Tse Cheng
, David S. Grummon

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

27 Scopus citations

Abstract

Controlled reversible changes in surface texture and topography are of interest to many applications, including information storage, optical communication devices, micro-fluidic instruments for drug delivery, and smart tribological surfaces for friction and wear control. Here, we demonstrate a method of inducing two-way reversible changes in an indentation made on the surface of a shape memory NiTi alloy. The two-way indent shape change is accomplished by thermomechanical training of spherical indents in NiTi shape memory alloy. After training, spherical indents exhibit two-way depth recovery: Shallow indent depth at high temperature and deep indent depth at low temperature. The reversible depth change is about 45% of the total indent depth and is stable over many cycles. The reversible depth change can have a wide range of engineering applications.

Original language	English
Article number	131904
Journal	Applied Physics Letters
Volume	88
Issue number	13
DOIs	https://doi.org/10.1063/1.2189201
State	Published - 2006

Bibliographical note

Funding Information:
The authors would like to thank A. Weiner and W. Ni for their generous help during this study. The authors are also grateful to the National Science Foundation for partial support of this work under SGER CMS 0336810 and GOALI CMS 0510294.

Funding

The authors would like to thank A. Weiner and W. Ni for their generous help during this study. The authors are also grateful to the National Science Foundation for partial support of this work under SGER CMS 0336810 and GOALI CMS 0510294.

Funders	Funder number
National Science Foundation (NSF)	SGER CMS 0336810, GOALI CMS 0510294

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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Cite this

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title = "Two-way indent depth recovery in a NiTi shape memory alloy",

abstract = "Controlled reversible changes in surface texture and topography are of interest to many applications, including information storage, optical communication devices, micro-fluidic instruments for drug delivery, and smart tribological surfaces for friction and wear control. Here, we demonstrate a method of inducing two-way reversible changes in an indentation made on the surface of a shape memory NiTi alloy. The two-way indent shape change is accomplished by thermomechanical training of spherical indents in NiTi shape memory alloy. After training, spherical indents exhibit two-way depth recovery: Shallow indent depth at high temperature and deep indent depth at low temperature. The reversible depth change is about 45\% of the total indent depth and is stable over many cycles. The reversible depth change can have a wide range of engineering applications.",

author = "Yijun Zhang and Cheng, \{Yang Tse\} and Grummon, \{David S.\}",

note = "Funding Information: The authors would like to thank A. Weiner and W. Ni for their generous help during this study. The authors are also grateful to the National Science Foundation for partial support of this work under SGER CMS 0336810 and GOALI CMS 0510294. ",

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AU - Zhang, Yijun

AU - Cheng, Yang Tse

AU - Grummon, David S.

N1 - Funding Information: The authors would like to thank A. Weiner and W. Ni for their generous help during this study. The authors are also grateful to the National Science Foundation for partial support of this work under SGER CMS 0336810 and GOALI CMS 0510294.

PY - 2006

Y1 - 2006

N2 - Controlled reversible changes in surface texture and topography are of interest to many applications, including information storage, optical communication devices, micro-fluidic instruments for drug delivery, and smart tribological surfaces for friction and wear control. Here, we demonstrate a method of inducing two-way reversible changes in an indentation made on the surface of a shape memory NiTi alloy. The two-way indent shape change is accomplished by thermomechanical training of spherical indents in NiTi shape memory alloy. After training, spherical indents exhibit two-way depth recovery: Shallow indent depth at high temperature and deep indent depth at low temperature. The reversible depth change is about 45% of the total indent depth and is stable over many cycles. The reversible depth change can have a wide range of engineering applications.

AB - Controlled reversible changes in surface texture and topography are of interest to many applications, including information storage, optical communication devices, micro-fluidic instruments for drug delivery, and smart tribological surfaces for friction and wear control. Here, we demonstrate a method of inducing two-way reversible changes in an indentation made on the surface of a shape memory NiTi alloy. The two-way indent shape change is accomplished by thermomechanical training of spherical indents in NiTi shape memory alloy. After training, spherical indents exhibit two-way depth recovery: Shallow indent depth at high temperature and deep indent depth at low temperature. The reversible depth change is about 45% of the total indent depth and is stable over many cycles. The reversible depth change can have a wide range of engineering applications.

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Two-way indent depth recovery in a NiTi shape memory alloy

Abstract

Bibliographical note

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