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Wear Behavior and Structural Characterization of a Nitrogen Implanted Ti6Al4V Alloy at Different Temperatures

Published online by Cambridge University Press:  25 February 2011

R. Martinella ,
G. Chevallard  and
C. Tosello
R. Martinella
Affiliation:
C.I.S.E., P.O.B. 12081, Milan, Italy
G. Chevallard
Affiliation:
C.I.S.E., P.O.B. 12081, Milan, Italy
C. Tosello
Affiliation:
I.R.S.T., Trento, Italy
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Abstract

Mechanically polished Ti6Al4V samples were implanted with 100 key nitrogen ions to a fluence of 5.1017 ions/cm2 at two different bulk tenneratures: 370°C and 470°C. Wear tests were carried out with a reciprocating slidina tribotester. Structural modifications and wear morphologies were studied by TEM and SEM. 370°C implanted sample showed the same wear behavior as unimplanted ones, while 470°C implanted sample showed better wear resistance because of a TiN hardened layer. Correlations- between microstructural modifications, wear behavior and mechanisms are reported: results agree with the delamination theory. Comparison with ion- and gas-nitrided samples are presented.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 27: Symposium E – Ion Implantation and Ion Beam Processing of Materials , 1983 , 711
Copyright
Copyright © Materials Research Society 1984

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References

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