발간논문

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Vol.40, No.2, 162 ~ 168, 2002
Title
Mechanical Behaviors : Mechanical Properties of Low Carbon Cr-Mo Steel Tempered by Induction Heating
안순태Soon Tae Ahn,이상래Sang Lae Lee
Abstract
Tempering of 0.2% C alloyed steel was tried to carry out employing induction heating method in this study. Mechanical properties of the steel tempered by induction heating and salt bath heating were compared to check the possibility of induction heating for industrial application. Results show that yield and tensile strength decreased and reduction of area and total elongation increased with increasing tempering temperature. It was found that one needs just increased tempering temperature with the induction heating method to obtain desired properties of tempered steel for proper formability, This evident fact was revealed from the unique relationship of reduction of area and total elongation as a function of tensile strength. The increased impact strength could be obtained with induction heating tempering. Prior austenite grain size affected to yield strength and impact strength but not tensile strength, reduction of area and elongation. It was concluded that induction heating method would be one of the competitive heat treating processes for steels in industrial fields.
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