Upcycled high-strength aluminum alloys from scrap through solid-phase alloying

被引：0

作者：

Wang, Tianhao ^{[1
]}

Li, Xiao ^{[1
]}

Li, Zehao ^{[1
]}

Liu, Tingkun ^{[1
]}

Wang, Xiang ^{[1
]}

Devaraj, Arun ^{[1
]}

Powell, Cindy A. ^{[1
]}

dos Santos, Jorge F. ^{[1
]}

机构：

[1] Pacific Northwest Natl Lab, Richland, WA 99354 USA

来源：

NATURE COMMUNICATIONS | 2024年 / 15卷 / 01期

关键词：

CU ALLOY; PRECIPITATION; EXTRUSION; WIRE;

D O I：

10.1038/s41467-024-53062-2

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Although recycling secondary aluminum can lead to energy consumption reduction compared to primary aluminum manufacturing, products produced by traditional melt-based recycling processes are inherently limited in terms of alloy composition and microstructure, and thus final properties. To overcome the constraints associated with melting, we have developed a solid-phase recycling and simultaneous alloying method. This innovative process enables the alloying of 6063 aluminum scrap with copper, zinc, and magnesium to form a nanocluster-strengthened high-performance aluminum alloy with a composition and properties akin to 7075 aluminum alloy. The unique nanostructure with a high density of Guinier-Preston zones and uniformly precipitated nanoscale eta'/Mg(CuZn)(2) strengthening phases enhances both yield and ultimate tensile strength by >200%. By delivering high-performance products from scrap that are not just recycled but upcycled, this scalable manufacturing approach provides a model for metal reuse, with the option for on-demand upcycling of a variety of metallic materials from scrap sources.

引用

页数：8