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Structural and Mechanical Properties of Ion Implanted Al and Cu

Published online by Cambridge University Press:  15 February 2011

P. Moine  and
J. Delafond
P. Moine
Affiliation:
Laboratoire de Métallurgie Physique, Université de Poitiers, 40 avenue du Recteur Pineau, 86022 Poitiers, France.
J. Delafond
Affiliation:
Laboratoire de Métallurgie Physique, Université de Poitiers, 40 avenue du Recteur Pineau, 86022 Poitiers, France.
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Abstract

Tensile deformation experiments on Al single crystals and parallel microstructural studies by T.E.M. on specimens directly thinned prior to a Zn+ ion implantation have been carried out. An uniform concentration of 7 at % Zn has been obtained on 1200Å thick layers by implantation using multiple energies. The temperature ranges of metastable phase of these samples are different from bulk Al-Zn alloys of identical concentration. Room and 80°C temperature thermal treatments leading to an important precipitation hardening in bulk alloys do not produce any significant mechanical modification in implanted Al single crystals. T.E.M. observations do not show any supplementary scattering around Bragg spots. On the contrary, we observe the direct appearance of precipitates at 135°C and 150°C after some days annealing.

High cycle reversed load fatigue test in vacuum show significant modifications of surfacedamage of an oxygen implanted copper specimen.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 7 , 1981 , 275
Copyright
Copyright © Materials Research Society 1982

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References

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