(v) :
(transitive) To harden (a metal) and produce a stronger microstructure by heating it into the austenite region and then immediately quenching and removing any bainite and ausferrite.
(v) :
(transitive) To harden (a metal) and produce a stronger microstructure by heating it into the austenite region and then immediately quenching and removing any bainite and ausferrite.