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Erosion of amorphous nickel-phosphorus

Published online by Cambridge University Press:  31 January 2011

K. C. Goretta ,
J. L. Routbort ,
A. Mayer  and
R. B. Schwarz
K. C. Goretta
Affiliation:
Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439
J. L. Routbort
Affiliation:
Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439
A. Mayer
Affiliation:
MST-7 and Center for Materials Science, Los Alamos National Laboratory, Los Alamos. New Mexico 87545
R. B. Schwarz
Affiliation:
MST-7 and Center for Materials Science, Los Alamos National Laboratory, Los Alamos. New Mexico 87545
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Abstract

The steady-state erosion rate of electrodeposited amorphous Ni80P20 by angular alumina particles has been measured as a function of impingement angle from 15°–90°, particle velocity from 50–100 m/s, and average particle diameter from 40–390 μm. The erosion rate can be described by a power law in velocity and particle size. The erosion rates in Ni80P20 were compared to those measured for electrodeposited pure crystalline nickel. For all experimental conditions the erosion rate in the amorphous alloy exceeded that of nickel. The material removal in amorphous Ni80P20 is attributed to formation of plastic shear bands below the impact areas. For the most energetic particles the erosion leads to the formation of melt, which seems to be a consequence of the localized shear.

Type
Articles
Information
Journal of Materials Research , Volume 2 , Issue 6 , December 1987 , pp. 818 - 826
Copyright
Copyright © Materials Research Society 1987

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References

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