The Vickers and Knoop microhardness testing methods have become invaluable for the testing of a variety of parts, which have what can be referred to as “shallow layer hardness.” Such characteristics as surface hardness, thin cross section, coating hardness, and case depth are measured using the microhardness testing methods. These methods also can be useful for selective testing of particular grains or constituents such as those found in powdered metal parts.
As applications continue to demand more of engineering materials and as the stakes for life expectancy of finished products continue to rise, testing is anticipated to play an ever more important role in product development and quality control processes.
Many new products entering the market today are based on new materials and processes. These new materials are playing increasingly important roles—supporting innovation and boosting competitiveness in technology driven industries.