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A Study on the Mechanical Strength Change by Thermal Aging of 2.25Cr-1Mo Steel

발전설비용 2.25Cr-1Mo 강의 시효에 의한 기계적 강도 특성 변화에 대한 연구

  • Published : 2000.07.01

Abstract

The purpose of this study is to investigate the thermal embrittlement and the mechanical properties of 2.25Cr-1Mo steel aged at high temperature for the extended periods. Original, aged artificiall y and used material were tested to obtain the tensile strength, hardness and impact absorbed energy. Tensile strength, hardness and impact absorbed energy decreased with the increasing aging time. The carbide morphology with the thermal embrittlement was found to contribute to the mechanical property change by X-Ray diffraction method.

Keywords

Thermal Embrittlement;Carbide Extract;Fatigue Test;Energy Transition Temperature;High Temperature Tensile Test

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