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Hardness Indentation Studies On Metallic Glasses

Published online by Cambridge University Press:  11 February 2011

Paul Wesseling ,
Peravudh Lowhaphandu  and
John. J. Lewandowski
Paul Wesseling
Affiliation:
Case Western Reserve University, Department of Materials Science and Engineering Cleveland, Ohio 44106, U.S.A.
Peravudh Lowhaphandu
Affiliation:
Case Western Reserve University, Department of Materials Science and Engineering Cleveland, Ohio 44106, U.S.A.
John. J. Lewandowski
Affiliation:
Case Western Reserve University, Department of Materials Science and Engineering Cleveland, Ohio 44106, U.S.A.
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Abstract

Vickers micro-hardness indentations have been performed on a number of amorphous metals. The effects of changes in indentation load on the hardness and appearance of indents will be discussed for amorphous Al87Ni7Gd6. In addition, the effects of changes in test temperature on the micro-hardness and appearance of indentations in Vitreloy I are presented. A transition in deformation/flow character was detected with increasing test temperature for the Vitreloy I specimens. In addition, preliminary hardness data obtained at room temperature on an iron based metallic glass exhibited values in excess of 12 GPa without cracking.

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References

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