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Characterization of Surface Mechanical Properties and Residual Stresses in Ion Implanted Nickel

Published online by Cambridge University Press:  22 February 2011

D. J. Morrison ,
J. W. Jones ,
G. S. Was ,
A. Mashayekhi  and
D. W. Hoffman
D. J. Morrison
Affiliation:
Department of Materials Science and Engineering, The University of Michigan, Ann Arbor, MI 48109
J. W. Jones
Affiliation:
Department of Materials Science and Engineering, The University of Michigan, Ann Arbor, MI 48109
G. S. Was
Affiliation:
Department of Nuclear Engineering, The University of Michigan, Ann Arbor, MI 48109
A. Mashayekhi
Affiliation:
Department of Nuclear Engineering, The University of Michigan, Ann Arbor, MI 48109
D. W. Hoffman
Affiliation:
Research Staff, Ford Motor Company, Dearborn, MI 48124
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Abstract

In this study, we have measured changes in hardness and residual stress state in polycrystalline nickel samples which have undergone a variety of ion beam surface treatments including self-implantation, amorphization by ion beam mixing Ni-Al multilayers, and the formation of a two-phase microstructure by elevated temperature aluminum implantation. Hardness-depth profiles of the the near-surface regions were determined using an ultra-low load microindentation system, and residual stress states induced by the surface modifications were analyzed using optical interferometry. These property changes were correlated with the accumulation of surface fatigue damage.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 130: Symposium C – Thin Films: Stresses and Mechanical Properties I , 1988 , 53
Copyright
Copyright © Materials Research Society 1989

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