半固态等温处理与电磁感应加热AZ80-0.2Y镁合金组织的演变
发布时间：2019-02-18 13:33
【摘要】：分别使用等温处理与电磁感应加热制备AZ80-0.2Y镁合金半固态坯料,对比等温处理与不同感应加热功率条件下半固态组织形貌特征。结果表明:等温处理半固态组织液相以晶界网状液池为主、固相球内的球形液池为辅;感应加热形成的液相主要由晶内长条状液池为主、晶界网状液池为辅。感应加热制备的半固态坯料比等温处理的半固态组织晶粒更细小,液相率更高;大功率感应加热相对于小功率感应加热,晶粒尺寸小,液相率更高;从室温使用功率4 kW感应加热至590℃用时90 s,平均晶粒尺寸65.1μm,液相率45%,晶粒形状系数2.15,已具备较优的成形性能。
[Abstract]:The semi-solid billets of AZ80-0.2Y magnesium alloy were prepared by isothermal treatment and electromagnetic induction heating, and the microstructure characteristics of semi-solid alloy were compared with those of isothermal treatment and different induction heating power. The results show that the liquid phase of semi-solid microstructure treated by isothermal treatment is mainly composed of grain boundary reticular liquid cell, and the spherical liquid pool in solid phase is auxiliary, and the liquid phase formed by induction heating is mainly composed of long strip liquid pool and grain boundary net liquid pool. The semisolid billet prepared by induction heating has smaller grain size and higher liquid phase ratio than that prepared by isothermal treatment, and the high power induction heating has smaller grain size and higher liquid phase ratio than that prepared by low power induction heating. The average grain size is 65.1 渭 m, the liquid phase ratio is 45, the grain shape coefficient is 2.15 and the average grain size is 65.1 渭 m when the heating power is 4 kW from room temperature to 590 鈩，
本文编号：2425889
[Abstract]:The semi-solid billets of AZ80-0.2Y magnesium alloy were prepared by isothermal treatment and electromagnetic induction heating, and the microstructure characteristics of semi-solid alloy were compared with those of isothermal treatment and different induction heating power. The results show that the liquid phase of semi-solid microstructure treated by isothermal treatment is mainly composed of grain boundary reticular liquid cell, and the spherical liquid pool in solid phase is auxiliary, and the liquid phase formed by induction heating is mainly composed of long strip liquid pool and grain boundary net liquid pool. The semisolid billet prepared by induction heating has smaller grain size and higher liquid phase ratio than that prepared by isothermal treatment, and the high power induction heating has smaller grain size and higher liquid phase ratio than that prepared by low power induction heating. The average grain size is 65.1 渭 m, the liquid phase ratio is 45, the grain shape coefficient is 2.15 and the average grain size is 65.1 渭 m when the heating power is 4 kW from room temperature to 590 鈩，
本文编号：2425889
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