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研究了在拉伸和压缩试验中粒子增强金属基复合材料(MMC)的室温成形性。随着这些材料热处理方式和外加载荷条件的不同,其拉伸和压缩过程中的延展性也不同。利用显微镜观测研究发现,材料在拉伸和压缩时的损伤机理不一样,采用最佳的热处理方式得到的材料具有最好的冷成形性,这些材料能冷成形为网状结构。在室温条件下以各种加工方法制造出若干演示用的部件,适宜的热处理方式与附加液压结合就可以对材料进行复杂的加工。
The room temperature formability of Particle Reinforced Metal Matrix Composites (MMC) was investigated in tensile and compression tests. With the heat treatment of these materials and the different loading conditions, the ductility of the process of stretching and compression are also different. Microscopic observation shows that the damage mechanism of the material during stretching and compressing is different. The material obtained by the best heat treatment method has the best cold formability, and these materials can be cold formed into a network structure. At room temperature in a variety of processing methods to produce a number of demonstration parts, the appropriate heat treatment combined with additional hydraulic pressure on the material can be complex processing.