nach oben

Journal of Materials Engineering and Performance

Erschienen in:

01.11.2014

Effect of Aging Treatments on the Mechanical and Corrosive Behaviors of Spray-Formed 7075 Alloy

verfasst von: Rui-ming Su, Ying-dong Qu, Rong-de Li

Erschienen in: Journal of Materials Engineering and Performance | Ausgabe 11/2014

Einloggen

Aktivieren Sie unsere intelligente Suche, um passende Fachinhalte oder Patente zu finden.

search-config

KI-gestützte Suche

Aus

Abstract

Mechanical properties, microstructure, exfoliation corrosion (EXCO), and intergranular corrosion (IGC) behaviors of the spray-formed 7075 aluminum alloy after T6, T73, retrogression (R), and re-aging (RRA) treatment, respectively, were studied by using tensile tester, transmission electron microscope, and scanning electron microscope. The results show that the T6 process can increase the ultimate tensile strength (UTS) up to 760 MPa, while it decreases the elongation, the EXCO, and the IGC resistance of the alloy. The T73 process can improve elongation, the EXCO, and the IGC resistance of the alloy. The corrosion resistance of the alloy can also be improved by R and RRA processes with retrogression times increase. The tiny precipitated phases distributed homogeneously in the matrix can increase the UTS. The close-connected discrete grain boundary phases (GBP) and the narrow precipitate free zones (PFZ) will lower the elongation, the EXCO, and the IGC resistance of the alloy. Contrarily, the discrete GBP and wide PFZ can improve the elongation, the EXCO, and the IGC resistance of the alloy. The EXCO and the IGC behaviors for the spray-formed 7075 alloy after different aging treatments have been established according to the standards of ASTM G34-2001 (2007) and ASTM G110-1992 (2009).

Vorheriger Artikel Effects of Solution Heat Treatment on Microstructure and Mechanical Properties of the Mg-4.5Zn-4.5Sn-2Al-0.6Sr Alloy

Nächster Artikel Texture Optimization for Intermediate Si-Containing Non-oriented Electrical Steel

Sie haben noch keine Lizenz? Dann Informieren Sie sich jetzt über unsere Produkte:

Springer Professional "Wirtschaft+Technik"

Online-Abonnement

Mit Springer Professional "Wirtschaft+Technik" erhalten Sie Zugriff auf:

über 102.000 Bücher
über 537 Zeitschriften

aus folgenden Fachgebieten:

Automobil + Motoren
Bauwesen + Immobilien
Business IT + Informatik
Elektrotechnik + Elektronik
Energie + Nachhaltigkeit
Finance + Banking
Management + Führung
Marketing + Vertrieb
Maschinenbau + Werkstoffe
Versicherung + Risiko

Jetzt Wissensvorsprung sichern!

Jetzt informieren

Springer Professional "Technik"

Online-Abonnement

Mit Springer Professional "Technik" erhalten Sie Zugriff auf:

über 67.000 Bücher
über 390 Zeitschriften

aus folgenden Fachgebieten:

Automobil + Motoren
Bauwesen + Immobilien
Business IT + Informatik
Elektrotechnik + Elektronik
Energie + Nachhaltigkeit
Maschinenbau + Werkstoffe

Jetzt Wissensvorsprung sichern!

Jetzt informieren

G. Sha and A. Cerezo, Early-Stage Precipitation in Al-Zn-Mg-Cu Alloy (7050), Acta Mater., 2004, 52, p 4503–4516CrossRef

S.L. George and R.D. Knutsen, Composition Segregation in Semi-solid Metal Cast AA7075 Aluminium Alloy, J. Mater. Sci., 2012, 47, p 4716–4725CrossRef

R.E. Ricker, E.U. Lee, R. Taylor, C. Lei, B. Pregger, and E. Lipnickas, Chloride Ion Activity and Susceptibility of Al Alloys 7075-T6 and 5083-H131 to Stress Corrosion Cracking, Metall. Mater. Trans. A, 2013, 44, p 1353–1364CrossRef

R.M. Su, Y.D. Qu, R.X. Li, and R.D. Li, Study of Ageing Treatment on Spray Forming Al-Zn-Mg-Cu Alloy, Appl. Mech. Mater., 2012, 217, p 1835–1838CrossRef

M. Jeyakumar, S. Kumar, and G.S. Gupta, Microstructure and Properties of the Spray-Formed and Extruded 7075 Al Alloy, Mater. Manuf. Process., 2010, 25, p 777–785CrossRef

J. Fang, P.C. Wong, K.A.R. Mitchell, and T. Foster, Observations Related to the Phosphating of Aluminium Alloy 7075-T6 Using a Spraying Technique, J. Mater. Sci., 1998, 33, p 1541–1547CrossRef

T. Ramgopal, P.I. Gouma, and G.S. Frankel, Role of Grain-Boundary Precipitates and Solute-Depleted Zone on the Intergranular Corrosion of Aluminum Alloy 7150, Corrosion, 2002, 58, p 687–697CrossRef

M.J. Robinson, The Role of Wedging Stresses in the Exfoliation Corrosion of High Strength Aluminium Alloys, Corros. Sci., 1983, 23, p 887–899CrossRef

M.J. Robinson and N.C. Jackson, Exfoliation Corrosion of High Strength Al-Cu-Mg Alloys: Effect of Grain Structure, Br. Corros. J., 1999, 34, p 45–49CrossRef

10.

D.J. Kelly and M.J. Robinson, Influence of Heat Treatment and Grain Shape on Exfoliation Corrosion of Al-Li Alloy 8090, Corrosion, 1993, 49, p 787–795CrossRef

11.

M.J. Robinson, Mathematical Modelling of Exfoliation Corrosion in High Strength Aluminium Alloys, Corros. Sci., 1982, 22, p 775–790CrossRef

12.

M.C. Reboul and J. Bouvaist, Exfoliation Corrosion Mechanisms in the 7020 Aluminium Alloy, Mater. Corros., 1979, 30, p 700–712CrossRef

13.

R.H. Brown, W.L. Fink, and M.S. Hunter, Measurement of Irreversible Potentials as a Metallurgical Research Tool, Trans. AIME, 1941, 143, p 115–122

14.

J.R. Galvele and S.M. de De Micheli, Mechanism of Intergranular Corrosion of Al-Cu Alloys, Corros. Sci., 1970, 10, p 795–807CrossRef

15.

S. Maitra and G.C. English, Mechanism of Localized Corrosion of 7075 Alloy Plate, Metall. Trans. A, 1981, 12, p 535–541CrossRef

16.

R.G. Buchheit, J.P. Moran, and G.E. Stoner, Electrochemical Behavior of the T1 (Al2CuLi) Intermetallic Compound and Its Role in Localized Corrosion of Al-2% Li-3% Cu Alloys, Corrosion, 1994, 50, p 120–130CrossRef

17.

R.G. Buchheit, F.D. Wall, G.E. Stoner, and J.P. Moran, Anodic Dissolution-Based Mechanism for the Rapid Cracking, Preexposure Phenomenon Demonstrated by Aluminum-Lithium-Copper Alloys, Corrosion, 1995, 51, p 417–428CrossRef

18.

A. Conde and J. De Damborenea, Evaluation of Exfoliation Susceptibility by Means of the Electrochemical Impedance Spectroscopy, Corros. Sci., 2000, 42, p 1363–1377CrossRef

19.

T. Ramgopal, P.I. Gouma, and G.S. Frankel, Role of Grain-Boundary Precipitates and Solute-Depleted Zone on the Intergranular Corrosion of Aluminum Alloy 7150, Corrosion, 2002, 58, p 687–697CrossRef

20.

L. Lin, Z. Liu, Y. Li, X. Han, and X. Chen, Effects of Severe Cold Rolling on Exfoliation Corrosion Behavior of Al-Zn-Mg-Cu-Cr Alloy, J. Mater. Eng. Perform., 2012, 21, p 1070–1075CrossRef

21.

J. Wloka, T. Hack, and S. Virtanen, Influence of Temper and Surface Condition on the Exfoliation Behaviour of High Strength Al-Zn-Mg-Cu Alloys, Corros. Sci., 2007, 49, p 1437–1449CrossRef

22.

M.J. Starink and S.C. Wang, A Model for the Yield Strength of Overaged Al-Zn-Mg-Cu Alloys, Acta Mater., 2003, 51, p 5131–5150CrossRef

23.

E. Salamci, Directionality in the Mechanical Properties of Spray Cast and Extruded 7xxxx Series Aluminum Alloys, Turk. J. Eng. Environ. Sci., 2003, 27, p 169–176

24.

F. Wang, B. Xiong, Y. Zhang, B. Zhu, H. Liu, Z. Wang, and X. He, Microstructure and Mechanical Properties of Spray-Deposited Al-10.8Zn-2.8Mg-1.9Cu Alloy After Two-Step Aging Treatment at 110 and 150°C, Mater. Charact., 2007, 58, p 82–86CrossRef

25.

F. Wang, B. Xiong, Y. Zhang, B. Zhu, H. Liu, and X. He, Effect of Heat Treatment on the Microstructure and Mechanical Properties of the Spray-Deposited Al-10.8Zn-2.8Mg-1.9Cu Alloy, Mater. Sci. Eng. A, 2008, 486, p 648–652CrossRef

26.

A.F. Oliveira, Jr., M.C. De Barros, K.R. Cardoso, and D.N. Travessa, The Effect of RRA on the Strength and SCC Resistance on AA7050 and AA7150 Aluminium Alloys, Mater. Sci. Eng. A, 2004, 379, p 321–326CrossRef

27.

Y.H. Cai, R.G. Liang, Z.P. Su, and J.S. Zhang, Microstructure of Spray Formed Al-Zn-Mg-Cu Alloy with Mn Addition, Trans. Nonferrous Met. Soc. China, 2011, 21(1), p 9–14CrossRef

28.

P. Lengsfeld, J.A. Juarez-Islas, W.A. Cassada, and E.J. Lavernia, Microstructure and Mechanical Behavior of Spray Deposited Zn Modified 7XXX Series Al Alloys, Int. J. Rapid Solidif., 1995, 8, p 237–265

29.

E. Salamci, Ageing Behaviour of Spray Cast Al-Zn-Mg-Cu Alloys, Turk. J. Eng. Environ. Sci., 2001, 25, p 681–686

30.

E. Salamci, Mechanical Properties of Spray Cast 7XXX Series Aluminum Alloys, Turk. J. Eng. Environ. Sci., 2002, 26, p 345–352

31.

H. Jiang and R.G. Faulkner, Modelling of Grain Boundary Segregation, Precipitation and Precipitate-Free Zones of High Strength Aluminium Alloys—I. The Model, Acta Mater., 1996, 44, p 1857–1864CrossRef

32.

H. Jiang and R.G. Faulkner, Modelling of Grain Boundary Segregation, Precipitation and Precipitate-Free Zones of High Strength Aluminium Alloys—II. Application of the Models, Acta Mater., 1996, 44, p 1865–1871CrossRef

33.

S.P. Knight, N. Birbilis, B.C. Muddle, A.R. Trueman, and S.P. Lynch, Correlations Between Intergranular Stress Corrosion Cracking, Grain-Boundary Microchemistry, and Grain-Boundary Electrochemistry for Al-Zn-Mg-Cu Alloys, Corros. Sci., 2010, 52, p 4073–4080CrossRef

34.

T. Ramgopal, P. Schmutz, and G.S. Frankel, Electrochemical Behavior of Thin Film Analogs of Mg(Zn, Cu, Al)₂, J. Electrochem. Soc., 2001, 148, p B348–B356CrossRef

35.

R. Goswami, S. Lynch, N.J.H. Holroyd, S.P. Knight, and R.L. Holtz, Evolution of Grain Boundary Precipitates in Al 7075 upon Aging and Correlation with Stress Corrosion Cracking Behavior, Metall. Mater. Trans. A, 2013, 44, p 1268–1278CrossRef

36.

D.A. Hardwick, A.W. Thompson, and I.M. Bernstein, The Effect of Copper Content and Heat Treatment on the Hydrogen Embrittlement of 7050-Type Alloys, Corros. Sci., 1988, 28, p 1127–1137CrossRef

Titel: Effect of Aging Treatments on the Mechanical and Corrosive Behaviors of Spray-Formed 7075 Alloy
verfasst von: Rui-ming Su
Ying-dong Qu
Rong-de Li
Publikationsdatum: 01.11.2014
Verlag: Springer US
Erschienen in: Journal of Materials Engineering and Performance / Ausgabe 11/2014
Print ISSN: 1059-9495
Elektronische ISSN: 1544-1024
DOI: https://doi.org/10.1007/s11665-014-1186-2

Premium Partner

Marktübersichten

Die im Laufe eines Jahres in der „adhäsion“ veröffentlichten Marktübersichten helfen Anwendern verschiedenster Branchen, sich einen gezielten Überblick über Lieferantenangebote zu verschaffen.

Zur Marktübersicht

Springer Professional

Abstract

Bitte loggen Sie sich ein, um Zugang zu Ihrer Lizenz zu erhalten.

Sie haben noch keine Lizenz? Dann Informieren Sie sich jetzt über unsere Produkte:

Springer Professional "Wirtschaft+Technik"

Springer Professional "Technik"

Weitere Artikel der Ausgabe 11/2014

Texture Optimization for Intermediate Si-Containing Non-oriented Electrical Steel

Analysis of Grain Boundary Character in a Fine-Grained Nickel-Based Superalloy 718

Inverse Thermal Analysis of Ti-6Al-4V Deep-Penetration Welds Using Volumetric Constraints

Effect of Interlayer Thickness on Joint Formation Between Ti-6Al-4V and Mg-AZ31 Alloys

Microstructure and Mechanical Properties of Friction Stir-Welded Mg-2Nd-0.3Zn-0.4Zr Magnesium Alloy

Inhibitive Performance of a Rust Converter on Corrosion of Mild Steel

Premium Partner

Marktübersichten