Abstract
The mechanical properties and corrosion performance of Al-Zn-Mg alloy through varied flame rectifications was studied based on the intergranular corrosion, exfoliation corrosion experiment. The results showed that the flame rectification accelerated the corrosion susceptibility of Al-Zn-Mg alloy. And the maximum intergranular corrosion depth are detected with the value of 89 mm after three time of flame rectification. The tensile strength of Al-Zn-Mg alloy increased to 383 MPa after one time of flame rectification in 300 °C. Then there is no significant change of tensile strength of Al-Zn-Mg alloy with the increase of flame rectification times. The change of corrosion resistance of Al-Zn-Mg alloy with varied flame rectifications is mainly associated with the transformation of precipitates and grains. There is a notable increase in the precipitation of phases within the grains after one time of flame rectification at 300°C. However, after two times of flame rectification, a phenomenon of "redissolution" of precipitated phases occurs. After three times of flame rectification, small-sized new grains appear at the grain boundaries of the elongated grains within the correction area, which is the result of incomplete recrystallization in the alloy.
Sign-in/Register to access full text options 
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.
