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Tribological Property of Oxidized TiNi Coating and Its Protection of Linear Rolling Guide

  • Xi'an Jiaotong University
  • China State Shipbuilding Corporation
  • Ltd.

Research output: Contribution to journalArticlepeer-review

Abstract

The tribological property of the TiNi coatings, synthesized by magnetron sputtering on the surfaces of machines ' linear rolling guide, was improved by oxidation. The impact of the oxidation techniques: in-situ vacuum oxidation at 550℃ and ex-situ anodized oxidation, on the tribological property of TiNi coatings was investigated. The mi-crostructures and mechanical properties of the TiNi coatings, before and after oxidation, were characterized with X-ray diffraction, scanning electron microscopy, and conventional mechanical probes. The preliminary results show that both oxidation techniques significantly reduce the friction coefficient of the TiNi coatings. For instance, under dry friction condition, the friction coefficient of the TiNi coating was reduced to 0.17~0.19, 60% lower than that of the control sample (0.4~0.6). Moreover, when it comes to wear-resistance and friction damages, in-situ thermal oxidation outperforms ex-situ anodized oxidation.

Original languageEnglish
Pages (from-to)1030-1034
Number of pages5
JournalZhenkong Kexue yu Jishu Xuebao/Journal of Vacuum Science and Technology
Volume34
Issue number10
DOIs
StatePublished - 1 Oct 2014

Keywords

  • Friction
  • Linear rolling guide
  • Shape memory alloys thin film
  • Surface oxidation

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