It is shown that the addition of Be (0.0 %)significantly increases the recrystallization temperature of the alloys,reduc实验结果表明:加入0.0 %Be能有效地提高77铝合金的再结晶温度,降低再结晶速度,使合金的晶粒得到细化,且硬度值仍高于不含铍的合金;