颗粒增强铝基复合材料往复挤压的数值模拟与实验研究
Numerical Simulation and Experimental Study on Cyclic Extrusion Compression for Particle Reinforced Al Composite
宛琼 1李付国 2李艳锋3
作者信息
- 1. 西北工业大学 材料科学与工程学院,陕西 西安 710072;河南科技大学 材料科学与工程学院,河南 洛阳 471003
- 2. 西北工业大学 材料科学与工程学院,陕西 西安 710072
- 3. 中国船舶集团有限公司第七二五研究所,河南 洛阳 471003
- 折叠
摘要
采用Deform 软件对颗粒增强铝基复合材料的往复挤压过程进行数值模拟,将熵值法和逼近理想解排序法相结合对正交模拟方案进行评价.将优选出的工艺参数用于往复挤压试验.结果表明:核壳结构的钛铝金属间化合物增强颗粒在往复挤压的过程中未发生整体破碎和与基体脱离的现象,而且热压烧结时TiAl3 壳体内部形成的粗大Ti晶在往复挤压后得到了有效细化.
Abstract
The cyclic extrusion compression(CEC)was simulated numerically by Deform software for particle reinforced aluminum composites.The orthogonal simulation tests were evaluated by the application of the entropy weight and technique for order preference by similarity to ideal solution.The preferred process was used in CEC experiment.The results show that the titanium aluminum intermetallic compound reinforced particles with the core and shell structure are not broken up nor separated from the matrix during CEC.The coarse Ti grains formed in hot-pressing sintering TiAl3 shell are refined effectively after CEC.
关键词
铝基复合材料/往复挤压/数值模拟/参数优选Key words
aluminum composite/cyclic extrusion compression(CEC)/numerical simulation/preferential parameters引用本文复制引用
出版年
2024
NETL
NSTL
万方数据