발간논문

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Vol.40, No.1, 33 ~ 39, 2002
Title
Mechanical Behaviors : Microstructural Evolution of Low Carbon Cr - Mo Steel Tempered by Induction Heating
안순태Soon Tae Ahn,이상래Sang Lae Lee
Abstract
Microstructural evolution of a low alloy steel tempered at various temperature in the range of 300-700℃ using induction heating method was examined. A series of microstructural evolution such as precipitation of acicular cementite with particular orientation and formation of spheroidized cementite was observed with increasing tempering temperature. Comparing to the tempered steel with salt-bath, similar tempered microstructure could be obtained at higher temperature by induction heating. Tensile stress-strain curves of the tempered steel revealed that the excellent formability of the low alloy steel would be achieved by tempering in the range of 500-700℃ with induction heating method which is commercially applicable heat-treatment process.
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