Thermomechanical treatment and corrosion resistance correlation in the AA2198 Al-Cu-Li alloy

被引：40

作者：

de Sousa Araujo, Joao Victor ^{[1
]}

Santos Bugarin, Aline de Fatima ^{[1
]}

Donatus, Uyime ^{[1
]}

Carvalho Machado, Caruline de Souza ^{[1
]}

Queiroz, Fernanda Martins ^{[1
]}

Terada, Maysa ^{[1
]}

Astarita, Antonello ^{[2
]}

Costa, Isolda ^{[1
]}

机构：

[1] IPEN CNEN, Inst Pesquisas Energet & Nucl, Av Prof Lineu Prestes 2242, Sao Paulo, Brazil

[2] Univ Naples Federico II, Dept Chem Mat & Ind Prod Engn, Naples, Italy

来源：

CORROSION ENGINEERING SCIENCE AND TECHNOLOGY | 2019年 / 54卷 / 07期

基金：

巴西圣保罗研究基金会;

关键词：

Aluminium-lithium alloys; thermomechanical treatments; severe localised corrosion; ALUMINUM-LITHIUM ALLOY; LOCALIZED CORROSION; BEHAVIOR; MICROSTRUCTURE; SUSCEPTIBILITY; MECHANISM; KINETICS; PRECIPITATION; EVOLUTION; COPPER;

D O I：

10.1080/1478422X.2019.1637077

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The influence of T3, T8 and T851 thermomechanical treatments on the microstructure and corrosion resistance of the AA2198 was investigated. Differential scanning calorimetry and scanning electron microscopy were used for microstructural characterisation, whereas electrochemical methods were employed to analyse the corrosion behaviour of the alloy. The morphology and composition of constituent particles were similar for the T3 and T8 thermomechanical treatments but varied in the T851. There was an inverse relation between T1 phase density and corrosion resistance. The T3 treatment with the highest corrosion resistance was the one with the lowest density of T1 phase. The mechanisms of corrosion varied with the thermomechanical treatments.

引用

页码：575 / 586

页数：12

共 42 条

[1] Strengthening mechanisms, deformation behavior, and anisotropic mechanical properties of Al-Li alloys: A review [J].

Abd El-Aty, Ali ;

Xu, Yong ;

Guo, Xunzhong ;

Zhang, Shi-Hong ;

Ma, Yan ;

Chen, Dayong .

JOURNAL OF ADVANCED RESEARCH, 2018, 10 :49-67

[2] The role of precipitates enriched with copper on the susceptibility to pitting corrosion of the 2024 aluminium alloy [J].

Blanc, C ;

Lavelle, B ;

Mankowski, G .

CORROSION SCIENCE, 1997, 39 (03) :495-510

[3] LOCALIZED CORROSION BEHAVIOR OF ALLOY-2090 - THE ROLE OF MICROSTRUCTURAL HETEROGENEITY [J].

BUCHHEIT, RG ;

MORAN, JP ;

STONER, GE .

CORROSION, 1990, 46 (08) :610-617

[4] 2198 Al-Li plates joined by Friction Stir Welding: Mechanical and microstructural behavior [J].

Cavaliere, P. ;

Cabibbo, M. ;

Panella, F. ;

Squillace, A. .

MATERIALS & DESIGN, 2009, 30 (09) :3622-3631

[5] On the severe localized corrosion susceptibility of the AA2198-T851 alloy [J].

de Sousa Araujo, Joao Victor ;

Donatus, Uyime ;

Queiroz, Fernanda Martins ;

Terada, Maysa ;

Milagre, Mariana Xavier ;

de Alencar, Maicon Cavalieri ;

Costa, Isolda .

CORROSION SCIENCE, 2018, 133 :132-140

[6]

Deschamps A, 2012, PROCEEDINGS OF THE 13TH INTERNATIONAL CONFERENCE ON ALUMINUM ALLOYS (ICAA13), P1145

[7] On the AA2198-T851 alloy microstructure and its correlation with localized corrosion behaviour [J].

Donatus, Uyime ;

Terada, Maysa ;

Ospina, Carlos Ramirez ;

Queiroz, Fernanda Martins ;

Santos Bugarin, Aline Fatima ;

Costa, Isolda .

CORROSION SCIENCE, 2018, 131 :300-309

[8] Quantitative description of the T1 formation kinetics in an Al-Cu-Li alloy using differential scanning calorimetry, small-angle X-ray scattering and transmission electron microscopy [J].

Dorin, Thomas ;

Deschamps, Alexis ;

De Geuser, Frederic ;

Lefebvre, Williams ;

Sigli, Christophe .

PHILOSOPHICAL MAGAZINE, 2014, 94 (10) :1012-1030

[9]

Gable B.M., 2001, J. Light Met, V1, P1, DOI [DOI 10.1016/S1471-5317(00)00002-X, 10.1016/S1471-5317(00)00002-X]

[10] Environmentally assisted cracking resistance of Al-Cu-Li alloy AA2195 using slow strain rate test in 3.5% NaCl solution [J].

Ghosh, R. ;

Venugopal, A. ;

Narayanan, P. Ramesh ;

Sharma, S. C. ;

Venkitakrishnan, P. V. .

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, 2017, 27 (02) :241-249

← 1 2 3 4 5 →