Effects of oxygen ion implantation on wear behavior of NiTi shape memory alloy

The plasma source ion implantation (PSII) technique was employed to modify the near-surface region of NiTi shape memory alloy by ion implantation with oxygen at 45 kV bias and 5 × 10 16 ions/cm 2 dose. Wear resistance of control and oxygen-implanted NiTi samples was evaluated using fretting wear tes...

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Veröffentlicht in:	Mechanics of materials 2005-10, Vol.37 (10), p.1059-1068
Hauptverfasser:	Tan, L., Shaw, G., Sridharan, K., Crone, W.C.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Archard’s equation Exact sciences and technology Fretting wear Friction, wear, lubrication Fundamental areas of phenomenology (including applications) Hardness Machine components Mechanical contact (friction...) Mechanical engineering. Machine design Nanoindentation Physics Pseudoelasticity Solid mechanics Structural and continuum mechanics
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Zusammenfassung:	The plasma source ion implantation (PSII) technique was employed to modify the near-surface region of NiTi shape memory alloy by ion implantation with oxygen at 45 kV bias and 5 × 10 16 ions/cm 2 dose. Wear resistance of control and oxygen-implanted NiTi samples was evaluated using fretting wear tests followed by the measurement of wear scar volume. Oxygen ion implantation improved the wear resistance of the NiTi alloy. The wear of NiTi has been described by a modified Archard’s equation which incorporates the effect of elasticity and pseudoelasticity on wear resistance in addition to hardness. The relative contribution to wear resistance by elasticity and pseudoelasticity versus hardness is discussed.
ISSN:	0167-6636 1872-7743
DOI:	10.1016/j.mechmat.2005.04.001