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Influence of annealing on mechanics behaviors of oxygen-implanted layer on Ti6Al4V by plasma-based ion implantation

  • Li Jinlong*
  • , Sun Mingren
  • , Ma Xinxin
  • , Huang Feng
  • , Xue Qunji
  • *Corresponding author for this work
  • CAS - Ningbo Institute of Material Technology and Engineering
  • Harbin Institute of Technology

Research output: Contribution to journalArticlepeer-review

Abstract

Ti6Al4V was implanted by oxygen plasma based ion implantation at pulsed negative voltages of 50kV with a fluence of 4×1017 O/cm2. The implanting temperature of below 180°C was controlled by an oil cooling working table. Subsequent annealing was applied the implanted samples in vacuum at 600°C, 650°C and 700°C, respectively. The influence of annealing conditions on hardness and scratch resistance of the oxygen-implanted layer was investigated. The annealing at a lower temperature below 650°C makes the hardness peak widen and shift into the substrate. Scratch resistance of the oxygen implanted layer also was improved significantly. While the temperature increases to 650°C and 700°C, annealing induces a hardness valley value, which is even far lower than that of the substrate. At the same time, scratch resistance deteriorates for the oxygen implanted layer. All annealing samples have a higher elasticity recover than the implanted samples.

Original languageEnglish
Pages (from-to)S224-S227
JournalSurface and Coatings Technology
Volume228
Issue numberSUPPL.1
DOIs
StatePublished - 15 Aug 2013
Externally publishedYes

Keywords

  • Annealing
  • Hardness
  • Oxygen-implanted layer
  • Scratch resistance
  • Ti6Al4V

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