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55 SiMnVB铜的奥氏体等温转变曲线及连续冷却转变曲线分别采用磁性法和膨胀法测出。结果表明,由于合金元素的作用,与60 Si2Mn钢相比,55SiMnVB钢的奥氏体等温转变曲线及连续冷却转变曲线的形状和位置发生了明显的变化。
55 SiMnVB copper austenite isothermal transformation curve and continuous cooling transformation curve were measured by magnetic method and swelling method. The results show that compared with 60 Si2Mn steel, the shape and position of austenite transformation curve and continuous cooling transformation curve of 55SiMnVB steel have changed significantly due to alloying elements.