ACID EMBRITTLEMENT. A form of hydrogen embrittlement that may be induced in some metals by acid treatment.
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ULTRA-SONIC TESTING. A nondestructive test applied to sound-conductive materials having elastic properties for the purpose of locating inhomogeneities of structural discontinuities within a […]
STRAIN. A measure of the relative change in the size or shape of a body. Linear strain is the change per unit length […]
TRANSFORMATION HARDENING. Heat treatment comprising austenitization followed by cooling under conditions such that the austenite transforms more or less completely into martensite and […]
SECONDARY HARDNESS. The higher hardness developed by certain alloy steels when they are cooled from a tempering operation. This should always be followed […]