Journal
COMPOSITES COMMUNICATIONS
Volume 43, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.coco.2023.101711
Keywords
Steel/Mg composites; Composite extrusion; Microstructure; Mechanical property
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This study systematically investigates the microstructure evolution and mechanical properties of Steel/Mg composites. It is found that there is an interdiffusion phenomenon of Mg and Zn elements at the interface of the composites, forming an interdiffusion layer and compounds. The inclusion of steel wire can effectively reduce the texture strength of the Mg alloy matrix, and the Steel/Mg composites exhibit higher tensile and compressive strength compared to Mg-R. This research provides a novel, time-saving, and cost-effective method for manufacturing continuous fiber reinforced metal matrix composites (CFRMMCs), expanding the application of metal composites.
The Steel/Mg composites were prepared using the composite extrusion method, where AZ31 Mg alloy was used as the matrix and Zn-coated steel wire as the reinforcement. The microstructure evolution and mechanical properties of these composites were systematically studied. The results show that there is an interdiffusion phenomenon of Mg and Zn elements at the interface of the prepared Steel/Mg composites, and an interdiffusion layer with a width of about 15 mu m is formed and MgZn and Mg7Zn3 compounds are produced. The inclusion of steel wire in the Mg alloy matrix can significantly reduce its texture strength. Steel/Mg composites have higher tensile and compressive strength than Mg-R. This study provides a novel, time-saving and low-cost method for the manufacture of continuous fiber reinforced metal matrix composites(CFRMMCs), and expands the application of metal composites.
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