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Journal of Materials Engineering and Performance

Erschienen in:

01.08.2010

The Effect of the Surface Treating and High-Temperature Aging on the Strength and SCC Susceptibility of 7075 Aluminum Alloy

verfasst von: Hamidreza Fooladfar, Babak Hashemi, Mousa Younesi

Erschienen in: Journal of Materials Engineering and Performance | Ausgabe 6/2010

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Abstract

A novel heat-treatment procedure combining the shot-peening with a two-step aging operation was proposed to improve both the strength and the stress corrosion cracking (SCC) resistance of the high-strength 7075 aluminium alloy. The heat treatment included one shot-peening stage before or between the two stages of aging at 120 °C for 24 h and at 160 °C for 1 h, respectively. The mechanical properties obtained during the aforementioned operations were extremely similar to those of the T6 sample owing to the unaffected bulk microstructure over such a low over-aging period. The SCC resistance of these samples was considerably improved compared to that of the T6 sample and of the conventional shot-peened T6 sample due to the over-aging of the surface like the T7 treatment leading from the diffusion acceleration by the dislocations generated in the surface layer during shot-peening. In spite of the further depth of deformation caused by shot-peening prior to the first step of aging, the sample shot-peened after the first step of aging showed no significant decrease in the SCC resistance because of its higher generated dislocation by shot-peening.

Vorheriger Artikel Improved Wear Resistance of Low Carbon Steel with Plasma Melt Injection of WC Particles

Nächster Artikel Dissolution of Eutectic β-Mg17Al12 Phase in Magnesium AZ91 Cast Alloy at Temperatures Close to Eutectic Temperature

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J.E. Hatch, Ed., Aluminum Properties and Physical Metallurgy, American Society for Metals, OH, 1984

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

N.Q. Chinh, J. Lendvai, D.H. Ping, and K. Hono, The Effect of Cu on Mechanical and Precipitation Properties of Al–Zn–Mg Alloys, J. Alloys Compd., 2004, 378, p 52CrossRef

B.L. Ou, J.G. Yang, and M.Y. Wei, Effect of Homogenization and Aging Treatment on Mechanical Properties and Stress-Corrosion Cracking of 7050 Alloys, Metall. Mater. Trans., 2007, 38A, p 1760CrossRef

M. Puiggali, A. Zielinski, J.M. Olive, E. Renauld, D. Desjardins, and M. Cid, Effect of Microstructure on Stress Corrosion Cracking of an Al-Zn-Mg-Cu Alloy, Corros. Sci., 1998, 40, p 805CrossRef

J.C. Lin, H.L. Liao, W.D. Jehng, C.H. Chang, and S.L. Lee, Effect of Heat Treatments on the Tensile Strength and SCC-Resistance of AA7050 in an Alkaline Saline Solution, Corros. Sci., 2006, 48, p 3139CrossRef

K. Rajan, W. Wallace, and J.C. Beddoes, Microstructural Study of a High-Strength Stress-Corrosion Resistant 7075 Aluminium Alloy, J. Mater. Sci., 1982, 17, p 2817CrossRefADS

A.F. Oliveira, 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 321CrossRef

M. Dixit, R.S. Mishra, and K.K. Sankaran, Structure–Property Correlations in Al 7050 and Al 7055 High-Strength Aluminum Alloys, Mater. Sci. Eng. A, 2008, 478, p 163CrossRef

10.

B.M. Cina, Reducing the Susceptibility of Alloys, Particularly Aluminum Alloys, to Stress Corrosion Cracking, U.S. Patent 3,856,584, 1974

11.

B.L. Ou, J.G. Yang, and C.K. Yang, Effects of Step-Quench and Aging on Mechanical Properties and Resistance to Stress Corrosion Cracking of 7050 Aluminum Alloy, Mater. Trans., 2000, 41, p 783

12.

L.P. Huang, K.H. Chen, S. Li, and M. Song, Influence of High-Temperature Pre-Precipitation on Local Corrosion Behaviors of Al–Zn–Mg Alloy, Scr. Mater., 2007, 56, p 305CrossRef

13.

M. Song and K. Chen, Effects of the Enhanced Heat Treatment on the Mechanical Properties and Stress Corrosion Behavior of an Al–Zn–Mg Alloy, J. Mater. Sci., 2008, 43, p 5265CrossRefADS

14.

S. You, P. Jones, A. Padwal, P. Yu, M. O’Keefe, W. Fahrenholtz, and T. O’Keefe, Response of Nanocrystalline Cerium-Based Conversion Coatings on Al 2024–T3 to Chloride Environments, Mater. Lett, 2007, 61(17), p 3778CrossRef

15.

H. Rahmatalla, M. Al-Rimawi, and T. Al-Hadid, Effect of Shot-Peening on Stress Corrosion Cracking (SCC) of 7075-T6 Aluminium Alloy, Proceedings of the ICSP-6 Conference, 1996, p 184

16.

J. Fader, C. Keeney, J. Hawkins, M. Clements, and S. Yollick, Anti-Corrosion Coating Applied During Shot-Peening Process, U.S. Patent 6,874,214, 2005

17.

H.L. Liao, J.C. Lin, and S.L. Lee, Effect of Pre-Immersion on the SCC of Heat-Treated AA7050 in an Alkaline 3.5% NaCl, Corros. Sci., 2009, 51, p 209CrossRef

18.

A. Deschamps, Y. Brechet, P. Guyot, and F. Livet, On the Influence of Dislocations on Precipitation in an Al-Zn-Mg Alloy, Z. Metallkd., 1997, 88, p 601

19.

A. Deschamps, F. Livet, and Y. Brechet, Influence of Predeformation on Ageing in an Al–Zn–Mg Alloy—I. Microstructure Evolution and Mechanical Properties, Acta Mater., 1999, 47, p 281CrossRef

20.

M. Talianker and B. Cina, Retrogression and Reaging and the Role of Dislocations in the Stress Corrosion of 7000-Type Aluminum Alloys, Metall. Trans., 1989, 20A, p 2087

21.

L. Wagner and C. Mueller, Effect of Shot-Peening on Fatigue Behaviour in Al-Alloys, Mater. Manuf. Processes, 1992, 7, p 423CrossRef

22.

M. Hilpert, “Dauerschwingverhalten von Magnesiumlegierungen: Einfluss von mechanischen Oberfl¨achenbehandlungen und Umgebungsmedien,” Dr.-Ing. Thesis, BTU Cottbus, 2001

23.

J.K. Gregory and L. Wagner, Shot-Peening, L. Wagner, Ed., Wiley–VCH, Weinheim, 2003

24.

Y.H. Zhao, X.Z. Liao, Z. Jin, R.Z. Valiev, and Y.T. Zhu, Microstructures and Mechanical Properties of Ultrafine Grained 7075 Al Alloy Processed by ECAP and Their Evolutions During Annealing, Acta Mater., 2004, 52, p 4589CrossRef

25.

Y.H. Zhao, K. Zhang, and K. Lu, Structure Characteristics of Nanocrystalline Element Selenium with Different Grain Sizes, Phys. Rev. B, 1997, 56, p 14322CrossRefADS

26.

T.C. Tsai, J.C. Chang, and T.H. Chuang, Stress Corrosion Cracking of Superplastically Formed 7475 Aluminum Alloy, Metall. Mater. Trans., 1997, 28A, p 2113CrossRef

27.

G. Waterloo, V. Hansen, J. Gjonnes, and S.R. Skjervold, Effect of Predeformation and Preaging at Room Temperature in Al–Zn–Mg–(Cu, Zr) Alloys, Mater. Sci. Eng. A, 2001, 303, p 226CrossRef

28.

D. Wang and Z.Y. Ma, Effect of Pre-strain on Microstructure and Stress Corrosion Cracking of Over-Aged 7050 Aluminum Alloy, J. Alloys Compd., 2009, 469, p 445CrossRef

29.

D. Dumont, A. Deschamps, and Y. Brechet, On the Relationship Between Microstructure, Strength and Toughness in AA7050 Aluminum Alloy, Mater. Sci. Eng. A, 2003, 356, p 326CrossRef

30.

D. Najjar, T. Magnin, and T.J. Warner, Influence of Critical Surface Defects and Localized Competition Between Anodic Dissolution and Hydrogen Effects During Stress Corrosion Cracking of a 7050 Aluminium Alloy, Mater Sci. Eng. A, 1997, 238, p 293CrossRef

31.

Metals Handbook, Vol 1, American Society for Metals, Cleveland, OH, 1961

32.

J. Albrecht, I.M. Bernstein, and A.W. Thompson, Evidence for Dislocation Transport of Hydrogen in Aluminum, Metall. Trans., 1982, 13A, p 811

33.

D. Nguyen, A.W. Thompson, and I.M. Bernstein, Microstructural Effects on Hydrogen Embrittlement in a High Purity 7075 Aluminum Alloy, Acta Metall., 1987, 35, p 2417CrossRef

34.

R.G. Song, W. Dietzel, B.J. Zhang, W.J. Liu, M.K. Tseng, and A. Atrens, Stress Corrosion Cracking and Hydrogen Embrittlement of an Al–Zn–Mg–Cu Alloy, Acta Mater., 2004, 52, p 4727CrossRef

35.

R.G. Song, M.K. Tseng, B.J. Zhang, J. Liu, Z.H. Jin, and K.S. Shin, Grain Boundary Segregation and Hydrogen-Induced Fracture in 7050 Aluminium Alloy, Acta Mater., 1996, 44, p 3241CrossRef

36.

R. Deiasi and P.N. Adler, Calorimetric Studies of 7000 Series Aluminum Alloys: I. Matrix Precipitate Characterization of 7075, Metall Trans., 1977, 8A, p 1177

37.

Y.H. Zhao, X.Z. Liao, S. Cheng, E. Ma, and Y.T. Zhu, Simultaneously Increasing the Ductility and Strength of Nanostructured Alloys, Adv. Mater., 2006, 18, p 2280CrossRef

38.

R.E. Smallman and K.H. Westmacott, Stacking Faults in Face-Centred Cubic Metals and Alloys, Philos. Mag., 1957, 2, p 669CrossRefADS

39.

S. Cheng, Y.H. Zhao, Y.T. Zhu, and E. Ma, Optimizing the Strength and Ductility of Fine Structured 2024 Al Alloy by Nano-Precipitation, Acta Mater., 2007, 55, p 5822CrossRef

40.

I.J. Polmear, Light Alloys, 4th ed., Butterworth-Heinmann, Oxford, 2006

Titel: The Effect of the Surface Treating and High-Temperature Aging on the Strength and SCC Susceptibility of 7075 Aluminum Alloy
verfasst von: Hamidreza Fooladfar
Babak Hashemi
Mousa Younesi
Publikationsdatum: 01.08.2010
Verlag: Springer US
Erschienen in: Journal of Materials Engineering and Performance / Ausgabe 6/2010
Print ISSN: 1059-9495
Elektronische ISSN: 1544-1024
DOI: https://doi.org/10.1007/s11665-009-9562-z

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