【摘要】：分別使用等溫處理與電磁感應加熱制備AZ80-0.2Y鎂合金半固態(tài)坯料,對比等溫處理與不同感應加熱功率條件下半固態(tài)組織形貌特征。結果表明:等溫處理半固態(tài)組織液相以晶界網(wǎng)狀液池為主、固相球內的球形液池為輔;感應加熱形成的液相主要由晶內長條狀液池為主、晶界網(wǎng)狀液池為輔。感應加熱制備的半固態(tài)坯料比等溫處理的半固態(tài)組織晶粒更細小,液相率更高;大功率感應加熱相對于小功率感應加熱,晶粒尺寸小,液相率更高;從室溫使用功率4 kW感應加熱至590℃用時90 s,平均晶粒尺寸65.1μm,液相率45%,晶粒形狀系數(shù)2.15,已具備較優(yōu)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，

本文編號：2425889