Abstract
In this study, the microstructure and properties of an Al-7.5Zn-1.7Mg-1.4Cu-0.12Zr alloy in T74 condition have been investigated using TEM, tensile properties testing, conductivity measurement, fracture toughness testing, fatigue testing, corrosion testing and soaking quench method etc. The results indicate that When T74 tempers are performed, the alloy can obtain a good comprehensive performance with GPII zones, η' phases and η phases as the major precipitates in the matrix and coarser and discontinuous precipitates on the grain boundaries. The alloy also exhibits a good combination of tensile strength, fracture toughness, fatigue and corrosion properties. And the alloy has a good quench performance, after soaking quenched in water, the strength of the forging with 210mm thickness is stable and varies less than 10% along the depth direction.
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.
