SECONDARY HARDNESS. The higher hardness developed by certain alloy steels when they are cooled from a tempering operation. This should always be followed by a second tempering operation.
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YIELD STRENGTH. The stress at which a material exhibits a specified deviation from proportionality of stress and strain. An offset of 0.2% is […]
SCLEROSCOPE TEST. A hardness test in which the loss in kinetic energy of a falling metal “tup,” absorbed by indentation upon impact of […]
VAPOR PLATING. Deposition of a metal or compound on a heated surface by reduction or decomposition of a volatile compound at a temperature […]
WHITE LAYER. Compound layer that forms as a result of the nitriding process.