Method for improving strength and plasticity of whisker reinforced pure aluminium-based composite material
A composite material and whisker technology, which is applied in the field of improving the strength and plasticity of pure aluminum-based composite materials, can solve the problems of low elongation of pure aluminum-based composite materials, and achieve the effects of increased elongation, yield strength and tensile strength
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specific Embodiment approach 1
[0009] Specific Embodiment 1: The method for improving the strength and plasticity of whisker-reinforced pure aluminum matrix composites in this embodiment is carried out through the following steps: 1. According to the volume fraction of whiskers and carbon nanotubes in the prefabricated block and the height of the prefabricated block , according to m=0.25×10 -2 ×π×D 2 ×H×V f ×ρWeigh aluminum borate whiskers with a diameter of 0.1-1μm and carbon nanotubes with a diameter of 10-30nm, where m is the mass of the whiskers or carbon nanotubes to be weighed, and the unit of m is g, D Is the diameter of the prefabricated block, the unit of D: cm, H is the height of the prefabricated block, the unit of H: cm, V f is the volume percentage of whiskers or carbon nanotubes in the prefabricated block, ρ is the density of whiskers or carbon nanotubes, and the unit of ρ is g / cm 3 , the whiskers are silicon carbide whiskers or aluminum borate whiskers; 2. Purify the carbon nanotubes weigh...
specific Embodiment approach 2
[0010] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the volume fraction of carbon nanotubes in the prefabricated block described in step 1 is 0.2-0.6%, and the volume fraction of whiskers in the prefabricated block is 18-25%. %. Other steps and parameters are the same as in the first embodiment.
specific Embodiment approach 3
[0011] Specific embodiment three: the difference between this embodiment and specific embodiment one is: the volume fraction of the carbon nanotubes described in step one in the prefabricated block is 0.3-0.%, and the volume fraction of the whiskers in the prefabricated block is 20-0.0%. twenty three%. Other steps and parameters are the same as in the first embodiment.
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