Microstructure, mechanical properties, aging behavior, and corrosion resistance of a laser powder bed fusion fabricated Al–Zn–Mg–Cu–Ta alloy

Li，Xinwei1; Li，Dawang1; Li，Gan2; Cai，Qizhou3

2022-01-14

10.1016/j.msea.2021.142364

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING   影响因子和分区

0921-5093

1873-4936

An Al–Zn–Mg–Cu–Ta alloy was successfully fabricated by laser powder bed fusion (LPBF). The effect of the added Ta on the microstructures (cracks, grain sizes, and phase constitutions), mechanical properties (tensile strength and elongation), aging behavior, and corrosion resistances (full immersion and electrochemical corrosion performances) of the LPBF-fabricated Al–Zn–Mg–Cu alloy were investigated. The results exhibited that, Ta restrained hot tearing, refined microstructures, enhanced the tensile strength and ductility, accelerated the aging processing, and improved the corrosion resistance of the LPBF-fabricated Al–Zn–Mg–Cu alloy, significantly. The reason was that Ta not only reacted with Al to form in-situ AlTa to refine α(Al), but also dissolved in the second phases to inhibit their coarsening.

Aging behavior Al–Zn–Mg–Cu alloy Corrosion resistance Laser powder bed fusion Microstructures Tensile properties

SCI ; EI

英语

其他

National Natural Science Foundation of China[51801096,51978406] ; Shenzhen Science and Technology Innovation Committee[JCYJ20180305123432756] ; State Key Laboratory of Materials Processing and Die and Mould Technology[P2022-021]

Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering

WOS:000761581400002

ELSEVIER SCIENCE SA

20214911259437

Aluminum alloys ; Aluminum corrosion ; Binary alloys ; Coarsening ; Copper alloys ; Copper corrosion ; Corrosion resistant alloys ; Electrochemical corrosion ; Fabrication ; Tantalum alloys ; Tensile strength

Metallurgy and Metallography:531 ; Metals Corrosion:539.1 ; Aluminum:541.1 ; Aluminum Alloys:541.2 ; Tantalum and Alloys:543.4 ; Copper:544.1 ; Copper Alloys:544.2 ; Electrochemistry:801.4.1 ; Chemical Reactions:802.2 ; Materials Science:951

MATERIALS SCIENCE

2-s2.0-85120316749

Scopus

1.Guangdong Provincial Key Laboratory of Durability for Marine Civil Engineering,College of Civil and Transportation Engineering,Shenzhen University,Shenzhen,518060,China
2.Department of Mechanical and Energy Engineering,Shenzhen Key Laboratory for Additive Manufacturing of High-performance Materials,Southern University of Science and Technology,Shenzhen,518055,China
3.State Key Laboratory of Material Processing and Die & Mould Technology,School of Materials Science and Engineering,Huazhong University of Science and Technology,Wuhan,430074,China

Li，Xinwei,Li，Dawang,Li，Gan,等. Microstructure, mechanical properties, aging behavior, and corrosion resistance of a laser powder bed fusion fabricated Al–Zn–Mg–Cu–Ta alloy[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2022,832.

Li，Xinwei,Li，Dawang,Li，Gan,&Cai，Qizhou.(2022).Microstructure, mechanical properties, aging behavior, and corrosion resistance of a laser powder bed fusion fabricated Al–Zn–Mg–Cu–Ta alloy.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,832.

Li，Xinwei,et al."Microstructure, mechanical properties, aging behavior, and corrosion resistance of a laser powder bed fusion fabricated Al–Zn–Mg–Cu–Ta alloy".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 832(2022).