摘要
研究不同压缩工艺参数及等通道转角挤压(ECAP)工艺对ZL102合金的显微组织及性能的影响。实验结果表明:随着温度的增加,ZL102合金的临界变形量增加,在410℃下,临界变形量可达50%以上。因此,ZL102合金适宜的变形温度在350～410℃之间。金相组织观察表明,随着变形量的增加,晶粒细化程度增大,变形量超过35%后,晶粒明显细化;材料的硬度随着变形量的增加而增大。采用转角α为120°模具时,路线A能更有效更均匀地细化晶粒。
Influences of different extruding parameters and equal channel angle pressing （ECAP） technology on the microstructure and properties of ZL102 aluminum alloy were studied. The results show that the critical value of extruding of the alloy is increased with temperature, being more than 50% at 310 ℃. The suitable temperature for deformation is within the range of 350 ℃ -410 ℃. The microanalyses indicate that the refined degree of grains is enhanced with the amount of deformation, When the amount is in excess of 35 %, the grain is refined remarkable. The hardness of the material is also raised with the amount of deformation. Using die of 120° angle and extruding with the route of A, the grains are refined more effectively and uniformly,
出处
《铸造技术》
CAS
北大核心
2007年第9期1225-1229,共5页
Foundry Technology
关键词
ZL102合金
塑性变形
等温压缩
等通道转角挤压
微观组织
ZL102 alloy
Plastic deformation
Equal temperature contraction~ Equal channel angle pressing （ECAP）
Microstructures
