Corrosion behavior assessment of an Al-Cu alloy manufactured via laser powder bed fusion

被引：9

作者：

Lorenzi, Sergio ^{[1
,2
]}

Carrozza, Alessandro ^{[1
,2
]}

Cabrini, Marina ^{[1
,2
]}

Nani, Lorenzo ^{[1
,2
]}

Andreatta, Francesco ^{[2
,3
]}

Virtanen, Eero ^{[4
]}

Tirelli, Tommaso ^{[5
]}

Pastore, Tommaso ^{[1
,2
]}

机构：

[1] Univ Bergamo, Dept Engn & Appl Sci, Dalmine, Italy

[2] Natl Interuniv Consortium Mat Sci & Technol INSTM, Florence, Italy

[3] Univ Udine, Polytech Dept Engn & Architecture, Udine, Italy

[4] Electro Opt Syst EOS, Turku, Finland

[5] AIDRO Hydraul & 3D Printing, Taino, Italy

来源：

CORROSION SCIENCE | 2024年 / 227卷

关键词：

Additive manufacturing; Aluminium; Al-Cu; Corrosion; Heat treatments; AFM; ELECTROCHEMICAL CHARACTERISTICS; INTERMETALLIC PHASES; ALUMINUM-ALLOYS; MICROSTRUCTURE; AA2024-T3; STRENGTH;

D O I：

10.1016/j.corsci.2023.111698

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Additively manufactured Aluminum-Copper alloys are attracting interest because of their high tensile strength. Nevertheless, the presence of Cu strongly affects the corrosion performances. In this work, the corrosion behavior of an innovative laser powder bed fusion-processed 2139 alloy was investigated, and its corrosion performances were compared to the well-consolidated AlSi10Mg alloy, as well as the parent wrought alloy. Electrochemical, Kelvin probe microscopy and intergranular corrosion tests were performed. The unique corrosion morphology at melt pool boundaries are presented and discussed alongside with the effect of surface finishing and heat treatments.

引用

页数：14

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