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JOMINY HARDENABILITY TEST - İTÜ

JOMINY HARDENABILITY TEST Objective To study hardness as a function of quench rate and investigate the HARDENABILITY of steels. Introduction The HARDENABILITY of a steel is defined as that property which determines the depth and distribution of hardness induced by quenching ftom the austenitic condition. The dependence of hardness upon quenching rate can be understood ftom the time-temperature-transformation characteristics of steel, and, for a particular steel, can be estimated from the T-T-T diagram. Apart may be hardened by quenching into water, oil, or other suitable medium. The surface of the part is cooled rapidly, resulting in high hardness, whereas the interior cools more slowly and is not hardened.

JOMINY HARDENABILITY TEST Objective To study hardness as a function of quench rate and investigate the hardenability of steels. Introduction The hardenability of a steel is defined as that property which determines the depth and

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