Abstract
The structure of a metal matrix composite based on aluminum containing 6, 17 and 24 wt % Al 2 O 3 was studied by atomic force microscopy. The composite was prepared by the method of magneticpulse compaction from aluminum nanopowder obtained by the electric wire explosion method. The samples compacted at 400 ◦ C have more clearly expressed grain boundaries than those obtained at room temperature. The structure of a composite subjected to dynamic plastic deformation is studied.
Highlights
Metal-matrix composite (MMC) based on aluminum with a strengthening phase of aluminum oxide is considered to be a promising material for structural applications worldwide, for example, MMC is used in the aerospace, defense and automotive industries [1,2,3,4,5,6,7]
We present the results of the study of the structure of aluminumbased metal matrix composite containing 6, 17 and 24 wt % Al 2 O 3, depending on the composition and the conditions for obtaining obtained by electric wire explosion (EWE) and magnetic-pulse compaction (MPC) methods, as well as subject to dynamic plastic deformation
According to the images of structure of composites compressed at 400 ◦ C (Figure 2), it can be noted that the faceting of grains became visible, in contrast to those compressed at room temperature, which simplified the analysis of the picture as a whole and the processing of the results
Summary
Metal-matrix composite (MMC) based on aluminum with a strengthening phase of aluminum oxide is considered to be a promising material for structural applications worldwide, for example, MMC is used in the aerospace, defense and automotive industries [1,2,3,4,5,6,7]. The structure of a metal matrix composite based on aluminum containing 6, 17 and 24 wt % Al 2 O 3 was studied by atomic force microscopy.
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