SCLEROSCOPE TEST. A hardness test in which the loss in kinetic energy of a falling metal “tup,” absorbed by indentation upon impact of the tup on the metal being tested, is indicated by the height of rebound.
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THERMAL SHOCK. The development of a steep temperature gradient and accompanying high stresses within a structure.
TEMPERED MARTENSITE EMBRITTLEMENT. Embrittlement of ultrahigh-strength steels caused by tempering in the temperature range of 205 to 400 degrees C (400 to 750 […]
STABILIZING TREATMENT. (1) Before finishing to final dimensions, repeatedly heating a ferrous or nonferrous part to or slightly above its normal operating temperature […]
SURFACE HARDENING. A generic term covering several processes applicable to a suitable ferrous alloy that produces, by quench hardening only, a surface layer […]