Achieving isotropic ultra-high strength and fatigue properties in a wire arc directed energy deposited Al-Zn-Mg-Cu-Sc alloy via interlayer friction stir processing

被引：0

作者：

Guo, Xinpeng ^{[1
]}

Ni, Dingrui ^{[2
]}

Li, Huijun ^{[1
]}

Xue, Peng ^{[2
]}

Pan, Zengxi ^{[1
]}

Dong, Bosheng ^{[1
,3
]}

Qiu, Zhijun ^{[1
,4
]}

Ma, Zongyi ^{[2
]}

机构：

[1] Univ Wollongong, Sch Mech Mat Mechatron & Biomed Engn, Wollongong, NSW 2522, Australia

[2] Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China

[3] Univ Sydney, Sch Aerosp Mech & Mechatron Engn, Sydney, NSW 2050, Australia

[4] Australian Nucl Sci & Technol Org ANSTO, Lucas Heights, NSW 2234, Australia

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2025年 / 927卷

基金：

中国国家自然科学基金;

关键词：

Wire arc directed energy deposition; Interlayer friction stir processing; Al-Zn-Mg-Cu-Sc alloy; Heat treatment; Mechanical property; ABNORMAL GRAIN-GROWTH; MICROSTRUCTURES; BEHAVIOR;

D O I：

10.1016/j.msea.2025.148026

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Pore defects are the most critical issue in the wire arc directed energy deposition (WA-DED) of aluminum alloys, hindering their application in the aerospace and transportation field. The interlayer friction stir processing (FSP), as an innovative composite technique applied in WA-DED, not only effectively addresses pore defects but also improves the material's microstructure, significantly enhancing its tensile and fatigue properties. However, interlayer FSP-treated aluminum alloys are prone to abnormal grain growth (AGG) during subsequent heat treatment processes, leading to a significant reduction in mechanical performance. This study utilized a custom Al-Zn-Mg-Cu-Sc filler wire and employed a combination of WA-DED and interlayer FSP processes to manufacture an alloy that not only eliminates all pore defects but also shows no AGG phenomenon after T6 heat treatment. The manufactured alloy achieves isotropy in mechanical properties, with a tensile strength and elongation of 645 +/- 8 MPa and 12.6 +/- 0.5 %, respectively. The fatigue performance is significantly improved to 250 MPa, marking the highest values in the field of WA-DED aluminum alloys to date. This method provides a feasible approach for eliminating defects and achieving isotropy in aluminum alloys during the additive manufacturing process.

引用

页数：9

共 29 条

[1] Ding D., Pan Z., Cuiuri D., Li H., Wire-feed additive manufacturing of metal components: technologies, developments and future interests, Int. J. Adv. Manuf. Technol., 81, pp. 465-481, (2015)
[2] Kohler M., Fiebig S., Hensel J., Dilger K., Wire and arc additive manufacturing of Aluminum Components, Metals, 9, (2019)
[3] Guo X., Li H., Pan Z., Zhou S., Microstructure and mechanical properties of ultra-high strength Al-Zn-Mg-Cu-Sc aluminum alloy fabricated by wire + arc additive manufacturing, J. Manuf. Process., 79, pp. 576-586, (2022)
[4] Fu R., Lu W., Guo Y., Lei H., Cui Y., Wang J., Achieving high strength-ductility of Al-Zn-Mg-Cu alloys via hot-wire arc additive manufacturing enabled by strengthening precipitates, Addit. Manuf., 58, (2022)
[5] Liu D., Wu D., Wang R., Shi J., Niu F., Ma G., Formation mechanism of Al-Zn-Mg-Cu alloy fabricated by laser-arc hybrid additive manufacturing: microstructure evaluation and mechanical properties, Addit. Manuf., 50, (2022)
[6] Guo X., Li H., Xue P., Pan Z., Xu R., Ni D., Ma Z., Microstructure and mechanical properties of 600 MPa grade ultra-high strength aluminum alloy fabricated by wire-arc additive manufacturing, J. Mater. Sci. Technol., 149, pp. 56-66, (2023)
[7] Xie C., Wu S., Yu Y., Zhang H., Hu Y., Zhang M., Defect-correlated fatigue resistance of additively manufactured Al-Mg4.5Mn alloy with in-situ micro-rolling, J. Mater. Process. Technol., 291, (2021)
[8] Fang X., Zhang L., Chen G., Huang K., Xue F., Wang L., Microstructure evolution of wire-arc additively manufactured 2319 aluminum alloy with interlayer hammering, Mater. Sci. Eng., 800, (2021)
[9] Gu J., Wang X., Bai J., Ding J., Williams S., Zhai Y., Deformation microstructures and strengthening mechanisms for the wire + arc additively manufactured Al-Mg4.5Mn alloy with inter-layer rolling, Mater. Sci. Eng., 712, pp. 292-301, (2018)
[10] Zhou S., Wang J., Yang G., Wu B., Xie H., Wu K., Periodic microstructure of Al–Mg alloy fabricated by inter-layer hammering hybrid wire arc additive manufacturing: formation mechanism, microstructural and mechanical characterization, Mater. Sci. Eng., 860, (2022)

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