【摘要】：分別使用等溫處理與電磁感應(yīng)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(yīng)加熱功率條件下半固態(tài)組織形貌特征。結(jié)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(nèi)的球形液池為輔;感應(yīng)加熱形成的液相主要由晶內(nèi)長條狀液池為主、晶界網(wǎng)狀液池為輔。感應(yīng)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(xì)小,液相率更高;大功率感應(yīng)加熱相對于小功率感應(yīng)加熱,晶粒尺寸小,液相率更高;從室溫使用功率4 kW感應(yīng)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