铸造工艺参数对半连续铸造A390合金管坯宏微观组织的影响
发布时间：2018-11-21 20:50
【摘要】：采用半连续铸造方法制备了A390合金管坯.研究了铸造速度和铸造温度对A390合金管坯宏微观组织的影响.结果表明:随着铸造速度由90 mm/min提升至120 mm/min、铸造温度由800℃增加至850℃,管坯中初生Si宏观分布趋于均匀,初生Si颗粒的平均尺寸逐渐减小.截面尺寸为鐖164 mm/鐖60 mm的半连续铸造A390合金管坯的最佳铸造工艺参数为:铸造速度110 mm/min、铸造温度850℃,可以获得初生Si宏观分布均匀、初生Si颗粒平均尺寸不超过26μm的管坯,管坯内侧的抗拉强度为264 MPa,延伸率为0.5%.
[Abstract]:The A 390 alloy tube billet was prepared by semi-continuous casting. The effect of casting speed and casting temperature on macro-microstructure of A390 alloy tube billet was studied. The results show that with the increase of casting speed from 90 mm/min to 120 mm/min, casting temperature from 800 鈩，
本文编号：2348227
[Abstract]:The A 390 alloy tube billet was prepared by semi-continuous casting. The effect of casting speed and casting temperature on macro-microstructure of A390 alloy tube billet was studied. The results show that with the increase of casting speed from 90 mm/min to 120 mm/min, casting temperature from 800 鈩，
本文编号：2348227
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