Restirring and reheating effects on microstructural evolution of al-zn-mg-cu alloy during underwater friction stir additive manufacturing

HIGHLIGHTS

• who: Ying Li and colleagues from the School of Materials Science and Engineering, Northeastern University, Shenyang, China have published the Article: Restirring and Reheating Effects on Microstructural Evolution of Al-Zn-Mg-Cu Alloy during Underwater Friction Stir Additive Manufacturing, in the Journal: Materials 2022, 15, 3804. of /2022/
• what: The main reason for the decrease in the mechanical properties and in the aging strengthening ability was the high density of the Mg(ZnAlCu)2 phase precipitation induced by the fine grains and the high density of subgrains and dislocations in this region.
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