Anti-corrosion properties of nitrogen and oxygen plasma-implanted nickel-titanium shape memory alloy

J. P. Y. Ho; R. W. Y. Poon; Y. T. Xie; P. C. T. Ha; P. K. Chu

doi:10.4028/www.scientific.net/ssp.107.111

Anti-corrosion properties of nitrogen and oxygen plasma-implanted nickel-titanium shape memory alloy

J. P. Y. Ho
, R. W. Y. Poon
, Y. T. Xie
, P. C. T. Ha
, P. K. Chu^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

3 Citations (Scopus)

Abstract

Nickel-titanium shape memory alloys (NiTi) have potential applications as orthopedic implants but out-diffusion of harmful Ni from the NiTi substrate during prolonged use inside a human body is a serious issue and the problem must be solved before the materials can be more widely used in orthopedics. In this work, we produce TiN and TiO_x barrier layers by plasma immersion ion implantation (PHI) and study the effects of different working voltages (20kV, 30kV, and 40kV). The corrosion resistance of the plasma-treated materials is found to be much improved and the optimal processing windows are described in this paper. © 2005 Trans Tech Publications, Switzerland.

Original language	English
Pages (from-to)	111-114
Journal	Solid State Phenomena
Volume	107
Online published	15 Oct 2005
DOIs	https://doi.org/10.4028/www.scientific.net/ssp.107.111
Publication status	Published - 2005

Research Keywords

Corrosion resistance
NiTi shape memory alloys
Plasma immersion ion implantation

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@article{a29be8277763439ba0a96caa8efad0c1,

title = "Anti-corrosion properties of nitrogen and oxygen plasma-implanted nickel-titanium shape memory alloy",

abstract = "Nickel-titanium shape memory alloys (NiTi) have potential applications as orthopedic implants but out-diffusion of harmful Ni from the NiTi substrate during prolonged use inside a human body is a serious issue and the problem must be solved before the materials can be more widely used in orthopedics. In this work, we produce TiN and TiOx barrier layers by plasma immersion ion implantation (PHI) and study the effects of different working voltages (20kV, 30kV, and 40kV). The corrosion resistance of the plasma-treated materials is found to be much improved and the optimal processing windows are described in this paper. {\textcopyright} 2005 Trans Tech Publications, Switzerland.",

keywords = "Corrosion resistance, NiTi shape memory alloys, Plasma immersion ion implantation",

author = "Ho, \{J. P. Y.\} and Poon, \{R. W. Y.\} and Xie, \{Y. T.\} and Ha, \{P. C. T.\} and Chu, \{P. K.\}",

year = "2005",

doi = "10.4028/www.scientific.net/ssp.107.111",

language = "English",

volume = "107",

pages = "111--114",

journal = "Solid State Phenomena",

issn = "1012-0394",

publisher = "Trans Tech Publications Ltd.",

}

TY - JOUR

T1 - Anti-corrosion properties of nitrogen and oxygen plasma-implanted nickel-titanium shape memory alloy

AU - Ho, J. P. Y.

AU - Poon, R. W. Y.

AU - Xie, Y. T.

AU - Ha, P. C. T.

AU - Chu, P. K.

PY - 2005

Y1 - 2005

N2 - Nickel-titanium shape memory alloys (NiTi) have potential applications as orthopedic implants but out-diffusion of harmful Ni from the NiTi substrate during prolonged use inside a human body is a serious issue and the problem must be solved before the materials can be more widely used in orthopedics. In this work, we produce TiN and TiOx barrier layers by plasma immersion ion implantation (PHI) and study the effects of different working voltages (20kV, 30kV, and 40kV). The corrosion resistance of the plasma-treated materials is found to be much improved and the optimal processing windows are described in this paper. © 2005 Trans Tech Publications, Switzerland.

AB - Nickel-titanium shape memory alloys (NiTi) have potential applications as orthopedic implants but out-diffusion of harmful Ni from the NiTi substrate during prolonged use inside a human body is a serious issue and the problem must be solved before the materials can be more widely used in orthopedics. In this work, we produce TiN and TiOx barrier layers by plasma immersion ion implantation (PHI) and study the effects of different working voltages (20kV, 30kV, and 40kV). The corrosion resistance of the plasma-treated materials is found to be much improved and the optimal processing windows are described in this paper. © 2005 Trans Tech Publications, Switzerland.

KW - Corrosion resistance

KW - NiTi shape memory alloys

KW - Plasma immersion ion implantation

UR - https://www.scopus.com/pages/publications/24944536037

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-24944536037&origin=recordpage

U2 - 10.4028/www.scientific.net/ssp.107.111

DO - 10.4028/www.scientific.net/ssp.107.111

M3 - RGC 21 - Publication in refereed journal

SN - 1012-0394

VL - 107

SP - 111

EP - 114

JO - Solid State Phenomena

JF - Solid State Phenomena

ER -

Anti-corrosion properties of nitrogen and oxygen plasma-implanted nickel-titanium shape memory alloy

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