Effects of Homogenization Treatment on Dispersoid Characteristics and Recrystallization Behavior in an Al-Zn-Mg-Cu-Zr Alloy

Xiang Xiao; Cheng Liu; Jian Zhao; Wei Li

doi:10.4028/www.scientific.net/MSF.877.153

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HomeMaterials Science ForumMaterials Science Forum Vol. 877Effects of Homogenization Treatment on Dispersoid...

Effects of Homogenization Treatment on Dispersoid Characteristics and Recrystallization Behavior in an Al-Zn-Mg-Cu-Zr Alloy

Abstract:

In the present research, a comprehensive study on the effect of the homogenization treatment on the characteristics of dispersoid and recrystallization behavior in an Al-Zn-Mg-Cu-Zr alloy has been conducted by means of optical micrography, scanning electron micrography and transmission electron micrography. The influence of three process parameters of the homogenization treatment, first stage holding temperature, holding time and heating rate, on the dispersoid characteristics has been throughly studied. The result shows that holding at 400°C for sufficient time is highly beneficial for obtaining fine and uniformly distributed Al₃Zr particles. Compared with the high heating rate treatment, the slow one apparently leads to significantly smaller Al₃Zr dispersoids, the dimension of the dispersoids decreases from 35 nm to 22 nm, and the number density of Al₃Zr particle in the center of the grains increases from 13/μm² to 35/μm². The percentage of recrystallized grains of the alloy is found to be affected by dispersoid distribution.

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Materials Science Forum (Volume 877)

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153-158

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https://doi.org/10.4028/www.scientific.net/MSF.877.153

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Online since:

November 2016

Authors:

Xiang Xiao*, Cheng Liu, Jian Zhao, Wei Li

Keywords:

Al₃Zr Dispersoids, Aluminium Alloy, Homogenization, Recrystallization

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References

[1] J.C. Williams, E.A. Starke, Progress in structuralmaterials for aerospace systems, Acta Materiali. 51 (2003) 5775-5799.

Google Scholar

[2] A.R. Eivani, H. Ahmed, J. Zhou, J. Duszczyk, Evolution of Grain Boundary Phases during the Homogenization of AA7020 Aluminum Alloy, Metallurgical and Materials Transactions A, 40 (2009) 717-728.

DOI: 10.1007/s11661-008-9741-9

Google Scholar

[3] J.D. Robson, Microstructural evolution in aluminium alloy 7050 during processing, Materials Science and Engineering A. 382 (2004) 112-121.

DOI: 10.1016/j.msea.2004.05.006

Google Scholar

[4] X.G. Fan, D.M. Jiang, Q.C. Meng, L. Zhong, The microstructural evolution of an Al-Zn-Mg-Cu alloy during homogenization, Materials Letters. 60 (2006) 1475-1479.

DOI: 10.1016/j.matlet.2005.11.049

Google Scholar

[5] H. Li, D.H. Cao, Z.X. Wang, Z.Q. Zheng, High-pressure homogenization treatment of Al-Zn-Mg-Cu aluminum alloy, Journal of Material Science. 43 (2008) 1583-1586.

DOI: 10.1007/s10853-007-2346-7

Google Scholar

[6] B.L. Ou, J.G. Yang, M.Y. Wei, Effect of Homogenization and Aging Treatment on Mechanical Properties and Stress-Corrosion Cracking of 7050 Alloys, Metallurgical and Materials Transactions A. 38 (2007) 1760-1773.

DOI: 10.1007/s11661-007-9200-z

Google Scholar

[7] Z.Y. Guo, G. Zhao, X. G. Chen, Effects of two-step homogenization on precipitation behavior of Al3Zr dispersoids and recrystallization resistance in 7150 aluminum alloy, Materials Characterization. 102 (2015) 122-130.

DOI: 10.1016/j.matchar.2015.02.016

Google Scholar

[8] Z.H. Jia, G.H. Hu, B. Forbord, J.K. Solberg, Effect of homogenization and alloying elements on recrystallization resistance of Al-Zr-Mn alloys, Materials Science and Engineering A. 444 (2007) 284-290.

DOI: 10.1016/j.msea.2006.08.097

Google Scholar

[9] L.M. Wu, W.H. Wang, Y.F. Hsu, S. Trong, Effects of homogenization treatment on recrystallization behavior and dispersoid distribution in an Al–Zn–Mg–Sc–Zr alloy, Journal of Alloys and Compounds. 456 (2008) 163-169.

DOI: 10.1016/j.jallcom.2007.02.054

Google Scholar

[10] X.M. Zhang, X.W. Zhou, S.D. Liu, W.J. Liu, Effect of heating rate on homogenization microstructures of 1933 aluminum alloy ingot, Journal of Central South University (Science and Technology). 42 (2011) 915-921.

Google Scholar

[11] S.L. Chen, F. Zhang, F.Y. Xie, S. Daniel, X.Y. Yan, Y.A. Chang, R. Schmid-Fetzer, W.A. Oates, Calculating phase diagrams using PANDAT and panengine, JOM. 55 (2003) 48-51.

DOI: 10.1007/s11837-003-0010-5

Google Scholar

[12] J.D. Robson, P.B. Prangnell, Dispersoid precipitation and process modelling in zirconium containing commercial aluminium alloys, Acta Materialia. 49 (2001) 599-613.

DOI: 10.1016/s1359-6454(00)00351-7

Google Scholar

[13] J.D. Robson, P.B. Prangnell, Modelling Al3Zr dispersoid precipitation in multicomponent aluminium alloys, Materials Science and Engineering A. 352 (2003) 240-250.

DOI: 10.1016/s0921-5093(02)00894-8

Google Scholar