Developing a high-strength Al-Mg-Si-Sc-Zr alloy for selective laser melting: Crack-inhibiting and multiple strengthening mechanisms

Recent advances in ageing of 7xxx series aluminum alloys: A physical metallurgy perspective

Stress corrosion cracking behaviour of 7xxx aluminum alloys: A literature review

Defects-dictated tensile properties of selective laser melted Ti-6Al-4V

Effect of local stress fields on twin characteristics in HCP metals

The mechanical properties, corrosion behavior, and microstructures of Al-Zn-Mg-Cu alloy during non-isothermal ageing (NIA) process were investigated. The results suggest that hardness and tensile strength generally keep improving with increasing ageing degree until the level of 182 HV and 578 MPa (cooled at 120 ℃, or C120), apart from a slight decline at the region where the temperature is beyond 200 ℃. Synchronously, the electrical conductivity increases and corrosion susceptibility decreases as the ageing proceeds. The optimal performance of the alloy is obtained at the C120 condition, whose electrical conductivity, stress corrosion susceptibility r tf and maximum corrosion depth are 40.3 %IACS, 98.2% and 24.7 μm, respectively. GPI zones and η' phases are the primary ageing precipitates at the heating stage (100–210℃, 40℃/h), then η' phases are the main ones at the cooling stage (210–100℃, 20℃/h). Reasonably, the combination of high strength and favorable corrosion resistance of the alloy through NIA treatment are associated with the growth and coarsening of intergranular precipitates during heating and newly formed fine intragranular ones during cooling.

Mechanical properties, corrosion behavior and microstructures of a non-isothermal ageing treated Al-Zn-Mg-Cu alloy

Precipitate behavior and mechanical properties of enhanced solution treated Al-Zn-Mg-Cu alloy during non-isothermal ageing

Microstructure and mechanical properties of 7005 aluminum alloy processed by room temperature ECAP and subsequent annealing

Corrosion behaviour and mechanism of new aerospace Al–Zn–Mg alloy friction stir welded joints and the effects of secondary Al3ScxZr1−x nanoparticles

Effects of Sc and Zr microalloying additions on the recrystallization texture and mechanism of Al–Zn–Mg alloys

Guofu Xu

Papers

Mechanical properties, corrosion behavior and microstructures of a non-isothermal ageing treated Al-Zn-Mg-Cu alloy

Precipitate behavior and mechanical properties of enhanced solution treated Al-Zn-Mg-Cu alloy during non-isothermal ageing

Microstructure and mechanical properties of 7005 aluminum alloy processed by room temperature ECAP and subsequent annealing

Corrosion behaviour and mechanism of new aerospace Al–Zn–Mg alloy friction stir welded joints and the effects of secondary Al3ScxZr1−x nanoparticles

Effects of Sc and Zr microalloying additions on the recrystallization texture and mechanism of Al–Zn–Mg alloys