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A Study on Material Degradation in Carbon Steel for Pressure Vessel at 179°C

机译:179°C压力容器中碳钢材料降解研究

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In spite of frequent defect in industrial boilers, life assessment or diagnostic method for them has not been studied. In this research, SB410 carbon steel used in industrial boilers is simulated with artificial aging heat treatment. To do qualitative life assessment, differences in micro-structures and hardness of SB410 by the degradation time are studied. In addition, variation in material properties by aging was observed with the tensile test at room temperature and 179°C and changes in ductile to brittle transition temperature was observed with the charpy impact test performed at several test temperature.
机译:尽管工业锅炉中经常缺陷,但尚未研究它们的寿命评估或诊断方法。在本研究中,用人工老化热处理模拟工业锅炉中使用的SB410碳钢。为了进行定性寿命评估,研究了通过降解时间的微结构和SB410硬度的差异。此外,在室温下的拉伸试验和179℃观察到材料特性的变化,并且观察到在几个测试温度下进行的夏比冲击试验观察到韧性转变温度的变化。

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