摘要
实验研究了以快速凝固和机械合金化复合工艺制备的２０２４ 铝合金纳米晶粉末为原料， 采用热静液挤压工艺在不同挤压工艺条件下固结成形的挤压态材料的显微组织与力学性能， 探讨了作为主要工艺参数的挤压温度和挤压比对材料组织性能的影响规律及其原因。在此基础上， 进一步确定了２０２４
Nanocrystalline 2024 aluminium alloy powders prepared by a unique technique which combines rapid solidification and mechanical alloying together were consolidated under various technical conditions by hot hydrostatic extrusion, and the microstructure and mechanical properties of the consolidated alloy were experimentally investigated. The influence of both the extrusion temperature and the extrusion ratio on the microstructure and mechanical properties of the as extruded alloy was made clear, and the reasons why these two parameters so influenced the microstructure and mechanical properties of the alloy were also discussed. Furthermore, suggestions were given for rationalizing the extrusion temperature and the extrusion ratio for the consolidation of nanocrystalline 2024 aluminium alloy powders by hot hydrostatic extrusion.
出处
《中国有色金属学报》
EI
CAS
CSCD
北大核心
1999年第A01期229-233,共5页
The Chinese Journal of Nonferrous Metals
关键词
铝合金
纳米晶
静液挤压
工艺参数
粉末挤压
aluminium alloy nanocrystalline hydrostatic extrusion grain growwth microstructure and mechanical properties
