A Cu-Al2O3 Composite with Ultrahigh Tensile Strength Prepared by High-Pressure Torsion
Source abstract
Abstract
In this work, an ultrafine-grained Cu-1wt.%Al2O3 composite was prepared by a high-pressure torsion (HPT) technique using Cu and nano-Al2O3 powder. The effect of temperature on the microstructures and mechanical properties was investigated. Compared with consolidation at room temperature, both the tensile strength and plasticity were improved when the Cu-1wt.%Al2O3 composite was consolidated at elevated temperature, and an amazing 1077.8±40.9 MPa tensile strength was obtained if Cu-1wt.%Al2O3 composites were first HPT consolidated at room temperature followed by consolidation at elevated temperature.
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Research context
OpenAlex topics: Aluminum Alloys Composites Properties · Microstructure and mechanical properties · Metal Forming Simulation Techniques
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References (23)
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