论文部分内容阅读
介绍了连续增强铸造铝基复合材料的性能及其制造过程。该工艺能获得一种在某些应用场合中性能优于可热处理的铝合金或聚合复合材料的结构材料。检验得到的热物理性能和结构特征,包括材料的各向异性以及以前Al2O3增强纤维及金属预浸料坯力学性能的测定结果都证明了该材料的高质量及其在特定的载荷模式和环境条件下工作的可能性。显微观察(光学显微镜,扫描电子显微镜)显示了微观组织的形态均匀性范围,纤维带分布的各向异性,以及金属/纤维界面的粘着特性。用计算机层析X射线照相法来显示所选取的微观组织组元的三维形态。结果表明:预浸料坯的特殊性能一方面受到其内在的微观组织几何形态,即Al2O3增强纤维体积分数和空间分布的强烈影响,另一方面还受到金属预浸料坯的各组元之间达到非常好的相容性的强烈影响。
The performance and manufacturing process of continuously reinforced cast aluminum matrix composites are introduced. This process results in a structural material that outperforms heat-treatable aluminum alloys or polymeric composites in certain applications. The thermophysical properties and structural features examined, including the anisotropy of the material and the results of the mechanical properties of the pre-A1203 reinforcing fibers and the metal prepregs, all demonstrate the high quality of the material and its performance in specific load modes and environmental conditions The possibility of work. Microscopic observations (light microscopy, scanning electron microscopy) show the range of morphological uniformity of the microstructures, the anisotropy of the fiber band distribution, and the adhesion properties at the metal / fiber interface. Computer tomography was used to show the three-dimensional morphology of selected microstructural elements. The results show that the special properties of the prepreg are strongly influenced both by its intrinsic microstructure geometry, ie by the volume fraction and spatial distribution of the Al2O3 reinforcing fibers, on the one hand, and by the intermetallic components of the prepreg Strong impact of achieving very good compatibility.