Abstract
Time-dependent hardness measurements and scratch hardness measurements are both used to obtain dynamic information concerning plastic deformation in strong, brittle solids. These two distinct types of hardness measurement however may involve the same process in terms of the formation of an indentation or scratch upon the surface of a solid. It is demonstrated here that the relationship of these experiments, under certain conditions, may be illustrated by a simple analysis. This relationship is then experimentally verified for time-dependent hardness measurements and scratch hardness measurements on germanium single crystals at slightly elevated temperatures.
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