High fluence implantation of nitrogen ions into titanium

Hohmuth, K.; Rauschenbach, B.

doi:10.1016/0025-5416(85)90351-9

Cited by 48 publications

(7 citation statements)

References 16 publications

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“…GIXD studies showed the formation of nitrides at the dose of 2.5 Â 10 17 ions/cm 2 . According to Rauschenbach [21], nitrides started to form above the dose of 1 Â 10 17 ions/cm 2 and the number and size of the precipitates will increase with increase in the dose of implantation. At higher doses (b 2 Â 10 17 ions/cm 2 ) the carbonitrides were found to occur along with nitrides which are responsible for the improved wear resistance.…”

Section: General Discussion About the Corrosion Resistance Of Nitrogementioning

confidence: 99%

“…Nitrogen ion implantation on the Ti6Al4V alloy at different doses influencing the corrosion resistance in the simulated body fluid was also reported [18,19]. At higher doses, the formation of nitrides and carbonitrides were noticed which are responsible for increase in the wear resistance [20,21]. However, the role of these precipitates in influencing the corrosion resistance of the materials is not fully understood.…”

Section: Introductionmentioning

confidence: 99%

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In vitro corrosion evaluation of nitrogen ion implanted titanium in simulated body fluid

Sundararajan

Mudali

Nair

et al. 1999

Materials and Corrosion

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Section: General Discussion About the Corrosion Resistance Of Nitrogementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

In vitro corrosion evaluation of nitrogen ion implanted titanium in simulated body fluid

Sundararajan

Mudali

Nair

et al. 1999

Materials and Corrosion

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“…During high‐dose nitrogen ion implantation, titanium picks up the carbon and precipitates it as carbonitrides. The size and number of the precipitates are directly proportional to the fluence of the nitrogen ion implantation[12]. Recent reports state that high‐dose implantation does not give any improvement in corrosion resistance, and the deleterious effects were attributed to the formation of titanium nitrides and carbonitrides during high‐dose implantation[13, 14].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical studies on nitrogen ion implanted Ti6Al4V alloy

Sundararajan

Rajeswari²,

Subbaiyan³

et al. 1998

Anti-Corrosion Methods and Materials

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Nitrogen ion implantation on a Ti6Al4V alloy with 70KeV energy was carried out at different doses ranging from 5 × 1015 to 2.5 × 1017ions/cm2. The implanted samples were subjected to open circuit potential/time measurement and cyclic polarization studies to evolve the optimum dose which can give good corrosion resistance in a simulated body fluid condition. The results show that there was an increase in corrosion resistance with increased doses up to 7 × 1016ions/cm2, beyond which it started to decrease. The stability of the passive film at a higher potential was assessed by potentiotransient techniques after impressing a constant potential of 1.5V for three hours. The results of the investigation indicate that nitrogen ion implantation can be used as a viable method to improve the corrosion resistance of orthopaedic implant devices made of Ti6Al4V alloy. The nature of the stable passive film and its influence on corrosion resistance are discussed in this paper.

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“…Because of its poor tribological properties, Ti and its alloys are subjected to surface engineering (Qiu et al 1991;Rieu et al 1992), to improve the service life and performance. Nitrogen implantation in these systems has shown a promising path for the successful increase (Buchanan et al 1987) in their service life and some important studies are available on processing details for nitride precipitation (Hohmuth and Rauschenbach 1985;Elder et al 1989). A more detailed understanding of the evolution of the surface structure of this two-phase alloy during nitrogen implantation appears desirable.…”

Section: Introductionmentioning

confidence: 99%

Phase instabilities during Ti-nitride precipitation in nitrogen implanted Ti-6AI-4V alloy

et al. 1998

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Grazing incidence X-ray diffraction, performed on a 70 keY nitrogen implanted Ti-6AI-4V system, reveals phase instabilities, during the course of nitride formation. With the build up of unbound N atom concentration, for a dose of I x 1016 ions/cm 2, the surface region becomes a-rich, whereas, on precipitation of Ti-nitrides at a high dose of I x 1017 ions/cm 2, the/]-Ti phase reappears, at the surface and beyond the implanted zone. The low concentration of V and the strain in the nitrided zone, have led to radiation induced martensitic transformation of the fl-Ti phase.

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High fluence implantation of nitrogen ions into titanium

Cited by 48 publications

References 16 publications

In vitro corrosion evaluation of nitrogen ion implanted titanium in simulated body fluid

In vitro corrosion evaluation of nitrogen ion implanted titanium in simulated body fluid

Electrochemical studies on nitrogen ion implanted Ti6Al4V alloy

Phase instabilities during Ti-nitride precipitation in nitrogen implanted Ti-6AI-4V alloy

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