Wear Resistance of NiTi Shape Memory Alloy Treated by Oxygen Plasma Immersion Ion Implantation and Atmospheric Oxidation

X.M. Liu; S.L. Wu; Paul K. Chu; C.Y. Chung; Y. L. Chan; K.W.K. Yeung; W.W. Lu; K.M.C. Cheung; K. D. K. Luk

Wear Resistance of NiTi Shape Memory Alloy Treated by Oxygen Plasma Immersion Ion Implantation and Atmospheric Oxidation

X.M. Liu
, S.L. Wu
, Paul K. Chu^*
, C.Y. Chung
, Y. L. Chan
, K.W.K. Yeung
, W.W. Lu
, K.M.C. Cheung
, K. D. K. Luk

^*Corresponding author for this work

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

Abstract

NiTi shape memory alloys have large potential in orthopedic implants due to their unique shape memory and superelastic properties. The biocompatibility and corrosion resistance of the materials can be improved by the formation of a homogeneous titanium oxide layer on the surface which can be prepared by different methods. In this work, we studied the effects of the oxide layers formed by oxygen plasma immersion ion implantation (O-PIII) and atmospheric oxidation on the wear properties of NiTi shape memory alloys. X-ray photoelectron spectroscopy (XPS) was employed to characterize the surface and the pin-on-disk test was used to evaluate the effects of O-PIII and oxidation on the wear properties of the NiTi alloys. Our results indicate that both O-PIII and atmospheric oxidation can improve the wear properties but the samples modified by O-PIII possess better anti-wear characteristics.

Original language	English
Title of host publication	15th International Conference on Surface Modification of Materials by Ion Beams
Pages	128
Publication status	Published - Sept 2007
Event	15th International Conference on Surface Modification of Materials by Ion Beams (SMMIB-15) - Mumbai, India Duration: 30 Sept 2007 → 5 Oct 2007

Conference

Conference	15th International Conference on Surface Modification of Materials by Ion Beams (SMMIB-15)
Place	India
City	Mumbai
Period	30/09/07 → 5/10/07

Research Keywords

NiTi

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@inproceedings{11ae5e6a1c1649698bc9b64467c62949,

title = "Wear Resistance of NiTi Shape Memory Alloy Treated by Oxygen Plasma Immersion Ion Implantation and Atmospheric Oxidation",

abstract = "NiTi shape memory alloys have large potential in orthopedic implants due to their unique shape memory and superelastic properties. The biocompatibility and corrosion resistance of the materials can be improved by the formation of a homogeneous titanium oxide layer on the surface which can be prepared by different methods. In this work, we studied the effects of the oxide layers formed by oxygen plasma immersion ion implantation (O-PIII) and atmospheric oxidation on the wear properties of NiTi shape memory alloys. X-ray photoelectron spectroscopy (XPS) was employed to characterize the surface and the pin-on-disk test was used to evaluate the effects of O-PIII and oxidation on the wear properties of the NiTi alloys. Our results indicate that both O-PIII and atmospheric oxidation can improve the wear properties but the samples modified by O-PIII possess better anti-wear characteristics.",

keywords = "NiTi",

author = "X.M. Liu and S.L. Wu and Chu, \{Paul K.\} and C.Y. Chung and Chan, \{Y. L.\} and K.W.K. Yeung and W.W. Lu and K.M.C. Cheung and Luk, \{K. D. K.\}",

year = "2007",

month = sep,

language = "English",

pages = "128",

booktitle = "15th International Conference on Surface Modification of Materials by Ion Beams",

note = "15th International Conference on Surface Modification of Materials by Ion Beams (SMMIB-15) ; Conference date: 30-09-2007 Through 05-10-2007",

}

Liu, XM, Wu, SL, Chu, PK , Chung, CY, Chan, YL, Yeung, KWK, Lu, WW, Cheung, KMC & Luk, KDK 2007, Wear Resistance of NiTi Shape Memory Alloy Treated by Oxygen Plasma Immersion Ion Implantation and Atmospheric Oxidation. in 15th International Conference on Surface Modification of Materials by Ion Beams. pp. 128, 15th International Conference on Surface Modification of Materials by Ion Beams (SMMIB-15), Mumbai, India, 30/09/07.

Wear Resistance of NiTi Shape Memory Alloy Treated by Oxygen Plasma Immersion Ion Implantation and Atmospheric Oxidation. / Liu, X.M.; Wu, S.L.; Chu, Paul K. et al.
15th International Conference on Surface Modification of Materials by Ion Beams. 2007. p. 128.

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

TY - GEN

T1 - Wear Resistance of NiTi Shape Memory Alloy Treated by Oxygen Plasma Immersion Ion Implantation and Atmospheric Oxidation

AU - Liu, X.M.

AU - Wu, S.L.

AU - Chu, Paul K.

AU - Chung, C.Y.

AU - Chan, Y. L.

AU - Yeung, K.W.K.

AU - Lu, W.W.

AU - Cheung, K.M.C.

AU - Luk, K. D. K.

PY - 2007/9

Y1 - 2007/9

N2 - NiTi shape memory alloys have large potential in orthopedic implants due to their unique shape memory and superelastic properties. The biocompatibility and corrosion resistance of the materials can be improved by the formation of a homogeneous titanium oxide layer on the surface which can be prepared by different methods. In this work, we studied the effects of the oxide layers formed by oxygen plasma immersion ion implantation (O-PIII) and atmospheric oxidation on the wear properties of NiTi shape memory alloys. X-ray photoelectron spectroscopy (XPS) was employed to characterize the surface and the pin-on-disk test was used to evaluate the effects of O-PIII and oxidation on the wear properties of the NiTi alloys. Our results indicate that both O-PIII and atmospheric oxidation can improve the wear properties but the samples modified by O-PIII possess better anti-wear characteristics.

AB - NiTi shape memory alloys have large potential in orthopedic implants due to their unique shape memory and superelastic properties. The biocompatibility and corrosion resistance of the materials can be improved by the formation of a homogeneous titanium oxide layer on the surface which can be prepared by different methods. In this work, we studied the effects of the oxide layers formed by oxygen plasma immersion ion implantation (O-PIII) and atmospheric oxidation on the wear properties of NiTi shape memory alloys. X-ray photoelectron spectroscopy (XPS) was employed to characterize the surface and the pin-on-disk test was used to evaluate the effects of O-PIII and oxidation on the wear properties of the NiTi alloys. Our results indicate that both O-PIII and atmospheric oxidation can improve the wear properties but the samples modified by O-PIII possess better anti-wear characteristics.

KW - NiTi

M3 - RGC 32 - Refereed conference paper (with host publication)

SP - 128

BT - 15th International Conference on Surface Modification of Materials by Ion Beams

T2 - 15th International Conference on Surface Modification of Materials by Ion Beams (SMMIB-15)

Y2 - 30 September 2007 through 5 October 2007

ER -

Wear Resistance of NiTi Shape Memory Alloy Treated by Oxygen Plasma Immersion Ion Implantation and Atmospheric Oxidation

Abstract

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