Investigation of Microstructure and Properties of an Al-Zn-Mg-Cu Alloy

Xi Wu Li; Bai Qing Xiong; Yong An Zhang; Zhi Hui Li; Feng Wang; Hong Wei Liu

doi:10.4028/www.scientific.net/AMR.668.885

Paper Titles

The Formation Mechanism of Equiaxed Crystals in Pure Aluminum Solidification Structure under the Al-Ti-C Master Alloy
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Segregation Patterns and the Phase-Field 3D-Model for Adiabatic Phase Transition in Al-Cu Alloys
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Effects of Electrolyte Parameters on Properties of Ceramic Coatings Formed on Aluminum Alloy 7075 by Plasma Electrolytic Oxidation
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Effects of Surface Oxide Coating on Corrosion Behavior of Ti-1023/LY12 Galvanic Couple
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Investigation of Microstructure and Properties of an Al-Zn-Mg-Cu Alloy
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Influence of Welding Sequence on Residual Stress and Distortion in Rectangular Welding of 6061 Aluminum Alloy
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Orthogonal Experimental Study on the Grinding-Hardened Layer’s Depth and its Uniformity of 45 Steel
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Mechanism Analysis and Dairy Filtration Experimental Research on Porous 1Cr18Ni9 Stainless Steel Components
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Quench Sensitivity and Quench-Induced Precipitation in High Strength 7xxx Series Aluminum Alloys
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 668Investigation of Microstructure and Properties of...

Investigation of Microstructure and Properties of an Al-Zn-Mg-Cu Alloy

Abstract:

In this study, the microstructure and properties of an Al-7.5Zn-1.7Mg-1.4Cu-0.12Zr alloy in T74 condition have been investigated using TEM, tensile properties testing, conductivity measurement, fracture toughness testing, fatigue testing, corrosion testing and soaking quench method etc. The results indicate that When T74 tempers are performed, the alloy can obtain a good comprehensive performance with GPII zones, η' phases and η phases as the major precipitates in the matrix and coarser and discontinuous precipitates on the grain boundaries. The alloy also exhibits a good combination of tensile strength, fracture toughness, fatigue and corrosion properties. And the alloy has a good quench performance, after soaking quenched in water, the strength of the forging with 210mm thickness is stable and varies less than 10% along the depth direction.

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Periodical:

Advanced Materials Research (Volume 668)

Pages:

885-889

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.668.885

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Online since:

March 2013

Authors:

Xi Wu Li, Bai Qing Xiong, Yong An Zhang, Zhi Hui Li, Feng Wang, Hong Wei Liu

Keywords:

Aging, Al-Zn-Mg-Cu Alloy, Microstructure, Property

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References

[1] T. Warner: Mater. Sci. Forum, Vol. 519-521 (2006), p.1271.

Google Scholar

[2] L. John: Mater. Sci. Forum. Vol. 519-521 (2006), p.1233.

Google Scholar

[3] D.J. Chakrabarti, J. Liu, R.R. Sawtell, et al.: Aluminium Alloys, edtied by J. F. Nie, A. J. Morton and B. C. Muddle (Institute of Materials Engineering Australasia Ltd, 2004), p.969.

Google Scholar

[4] M. Hilpert, G. Terlinde, T. Witulski, et al.: Aluminium Alloys, edtied by J. Hirsch, B. Skrotzki and G. Gottstein, (WILEY-VCH, Weinheim, 2008), p.209.

Google Scholar

[5] X. W. Li, B. Q. Xiong, Y. A. Zhang, et al.: Int. J Mod. Phys. B. Vol. 23 (2009), p.900.

Google Scholar

[6] X. W. Li, B. Q. Xiong, Y. A. Zhang, et al.: Sci. in China Ser. E-Tech. Sci. Vol. 52 (2009), p.67.

Google Scholar

[7] B. Q. Xiong, X. W. Li, Y. A. Zhang, et al.: Chinese J Nonferrous Metals. Vol. 19 (2009), p.1539.

Google Scholar

[8] X. J. Jiang, B. Noble, B. Holme, et al.: Metall. Mater. Trans. A. Vol. 31 (2000), p.339.

Google Scholar

[9] X. Z. Li, V. Hansen, J. Gjфnnes, et. al.: Acta Mater. Vol. 47 (1999), p.2651.

Google Scholar

[10] S. Gang, C. Alfred: Acta Mater. Vol. 52 (2004), p.4503.

Google Scholar

[11] L.K. Berg, J. Gjфnnes, V. Hansen, et al.: Acta Mater. Vol. 49 (2001), p.3443.

Google Scholar

[12] M. J. Starink, X. M. Li: Metall. Mater. Trans. A. Vol. 34 (2003), p.899.

Google Scholar