Abstract
In the present work, two types of thermo-mechanical treatments were performed to enhance the mutually contradictory strength and electrical conductivity of Al–Mg–Si alloy. The microstructures, conducting and mechanical behavior of the alloy during conventional artificial aging treatment (solution treating, aging) and thermo-mechanical treatments (solution treating, cold rolling, aging and solution treating, pre-aging, cold rolling, re-aging) were investigated. The results indicate that the Al–Mg–Si alloy after 70% cold rolling and aging at 180°C for 6h reveals higher ultimate tensile strength and electrical conductivity (being 267MPa and 58.2% IACS) than the conventional peak-aged alloys do (being 248MPa and 54.8% IACS). Further simultaneously enhanced ultimate tensile strength and electrical conductivity, as high as 301MPa and 58.9% IACS, respectively, can be acquired for the alloy after pre-aging at 180°C for 2h and then 70% cold rolling followed by re-aging at 180°C for 6h. With the aid of the microstructure evolution, the factors which lead to the simultaneously enhanced strength and conductivity of the alloy are discussed in detail.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
