Effect of the bionic morphologies on bio-tribological properties of surface-modified layers on Ti6Al4V with Ni+/N+ implantation
Abstract
Purpose
The main purpose of this study is to enhance bio-tribological properties of Ti6Al4V and the surface-modified layers of Ni+/N+-implanted Ti6Al4V alloy, bionic texturing was done on Ti6Al4V surface.
Design/methodology/approach
The phase compositions and nano-hardness of the surface-modified layers of the samples have been analyzed by X-ray diffractometer and Nano Indenter, respectively. This paper has conducted bio-tribological tests under artificial saliva, sodium hyalurate and sodium hyalurate +γ-globulin by micro tribology multifunction tribometer, with ZrO2 ball/modified layer as the friction pair. S-3000N scanning electron microscope has been used to analyze the morphology of the surface-modified layers and scratches of the ones after the bio-tribological tests.
Findings
The results show that the surface-modified layers were mainly composed of Ti2Ni and Ti2N. Moreover, bionic texturing can obviously increase the contents of Ti2Ni and Ti2N that were formed on the surface of Ni+/N+-implanted Ti6Al4V alloy, and enhance the nano-hardness of the surface-modified layers. It could also reduce the friction coefficients of the surface-modified layers, and render the modified layers more wear-resistant.
Originality/value
The surface bio-tribological properties of Ti6Al4V have been enhanced by ion implantation technique and bionic texturing in this paper; this provided a new method for the research of related fields.
Keywords
Acknowledgements
This work was supported by the National Natural Science Foundation of China (Grant No. 51301144), the outstanding young teachers special training project of Department of Education in Yunnan Province (Grant No.51400672), the construction project of the eight key industrial brand professionals in Yunnan Province (Grant No. 51600613) and personnel training project in Yunnan Province (Grant No. KKSY20 1628022).
Citation
Wang, Y. (2018), "Effect of the bionic morphologies on bio-tribological properties of surface-modified layers on Ti6Al4V with Ni+/N+ implantation", Industrial Lubrication and Tribology, Vol. 70 No. 2, pp. 325-330. https://doi.org/10.1108/ILT-08-2017-0233
Publisher
:Emerald Publishing Limited
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