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The high-fluence implantation of carbon and dual implantations of metal-metalloid pairs into steels with different microstructures are briefly reviewed. A previously unexamined system, the implantation of Si and C into two kinds of tool steels, M3 and D2, have been studied in terms of microstructure and tribological performance. In both cases ion implantation transfers a surface into an amorphous layer. However, the tribological behaviour of these two materials differs remarkably: in the case of ion-implanted M3 a reduction of wear in a steel pin is observed even at high pin loads, whereas in the case of ion-implanted D2 the beneficial effects of ion implantation were limited to the lowest pin load. The importance of an initial phase at the onset of sliding is emphasized and a number of peculiarities observed in ion-implanted M3 steel are discussed.

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Authors: HIRVONEN J-P ET AL, JRC Petten (NL);TORRI B, University of Helsinki, Department of Physics (FI);WILLERS H ET AL, JRC Ispra (IT)
Bibliographic Reference: Article: Nuclear Instruments and Methods in Physics Research B, Vol. 127/128 (1997) pp. 922-929
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