| 摘要 |
PURPOSE: A method for measuring a phase transformation rate of steel is provided to exactly measure the phase transformation rate and a phase transformation speed based on an amount of carbon concentrated in an austenite, and a length variation and a lattice parameter of an austenite. CONSTITUTION: A method for measuring a phase transformation rate of steel comprises the steps of measuring variation of the steel length when the steel is refrigerated using dilatometer, measuring density of alloy components with respect to each transformed phase and an austenite by using thermodynamics calculation, and measuring a phase transformation by substituting a temperature condition and a carbon density condition for a predetermined formula.
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