固液反应球磨制备Al-Cu-Fe与Al-Si-Fe三元合金  

Fabrication of Al-Cu-Fe & Al- Si-Fe ternary alloy powders by solid-liquid reaction milling

作　　者：陈鼎[1] 黄培云[1] 

机构地区：[1]中南大学材料科学与工程学院,湖南长沙410083

出　　处：《中南大学学报（自然科学版）》2004年第4期537-542,共6页Journal of Central South University:Science and Technology

摘　　要：利用固液反应球磨技术,采用Fe球球磨液态Al Cu和Al Si二元合金熔体,制备了Al Cu Fe与Al Si Fe系三元合金,研究了Al Cu Fe和Al Si Fe三元合金相形成规律。在923K球磨液态的Al 33.2%Cu共晶合金,球磨48h后,得到Al13Cu4Fe3的固相粉末;在943K球磨Al 54%Cu(Al2Cu)合金熔体,球磨24h后,Al2Cu的液相消失,得到了固相的Al65Cu20Fe15和Al13Cu4Fe3混合粉末;在963K球磨Al 7%Si亚共晶合金熔体,球磨48h后,Al Si液相消失,得到固态的Al8Fe2Si合金粉末;在963K球磨Al 12.6%Si共晶合金熔体,球磨48h后,Al Si的液相消失,得到固态的Al8Fe2Si粉末;在1133K球磨Al 30%Si过共晶合金熔体,球磨24h后,Al Si的液相消失,得到固态的Al3FeSi合金粉末。在上述球磨中,若加入一定量的Fe粉,将加速反应进程。固液反应球磨产物是在打击剥离的过程中制得的。Al-Cu and Al-Si binary alloy melt were milled by Fe ball to fabricate Al-Cu-Fe and Al-Si-Fe ternary alloy powders by using a novel solid-liquid reaction milling technology. In comparison with that of high-energy ball milling, the phase formation rule of ternary alloys of the newly developed technology was studied. Al_(13)Cu_4Fe_3 powder was obtained by milling Al-33.2% Cu eutectic alloy melt at 923 K after 48 h. Al_2Cu disappeared and Al_(65)Cu_(20)Fe_(15) and Al_(13)Cu_4Fe_3 powder were prepared when Al-54%Cu(Al_2Cu) alloy melt was milled at 943 K after 24 h. Al_8Fe_2Si powder was obtained by milling Al-7%Si(mass friction) hyporeutectic alloy melt at 963 K after 48 h. Al_8Fe_2Si powder and Al_3FeSi powder was formed by milling Al-12.6%Si eutectic alloy melt at 963 K after 48 h and Al-30%Si hypereutectic alloy melt at 1 133 K after 24 h, respectively. Moreover, the reaction is the process of striking and stripping.

关 键 词：固液反应球磨 机械合金化 三元合金 

分 类 号：TB383[一般工业技术—材料科学与工程]