The Superplastic Deformation and Microstructural Analysis of Fine-Grained 1420 Al-Li Alloy

Yan Ling Zhang; He Ping Guo; Zhi Qiang Li

doi:10.4028/www.scientific.net/AMR.148-149.434

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 148-149The Superplastic Deformation and Microstructural...

The Superplastic Deformation and Microstructural Analysis of Fine-Grained 1420 Al-Li Alloy

Abstract:

The superplasticity of fine-grained 1420 Al-Li alloy which was prepared by two-stage aging and turning rolling process was studied by constant-strain-rate tensile test. The results showed that: good superplasticity was attained at temperature range of 460°C~520°C and deformation strain rate 1×10-4s-1~5×10-3s-1. An elongation of 650% was obtained at the temperature of 650°C and strain rate of 1×10-4s-1. Furthermore, the microstructures of material before and after deformation were examined using OM and TEM. Equiaxed grains were still kept, and the second-phase particles and dislocations were observed in the deformed samples.

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Periodical:

Advanced Materials Research (Volumes 148-149)

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434-438

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.148-149.434

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Online since:

October 2010

Authors:

Yan Ling Zhang, He Ping Guo, Zhi Qiang Li

Keywords:

Elongation, Fine Grained 1420 Al-Li Alloy, Microstructure, Superplasticity

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References

[1] Y. W. Xun, Y. Y. Zhu, W. F. Mao, etal. Materials Processing Technology, Vol. 72 (1997), p . 183-187.

Google Scholar

[2] H. Imamura, N. Ridley, in: S. Hori, M. Tokizane, N. Furushiro. The Japan Society for Research on superplasticity, 1991, pp.453-458.

Google Scholar

[3] R Kaibyshev; O Osipova. Materials Science and Technology, Vol . 21(2005), pp.1209-1216.

Google Scholar

[4] L.Y. Zhang, G. G. Qi. Metal Forming Technology, Vol. 19(2001), pp.1-3.

Google Scholar

[5] Y. N. Kwon, Koh. H. J, S. Lee, etal. Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, Vol 32(2001), pp.1649-1658.

Google Scholar

[6] M.N. Srinivasan, R. E. Goforth, Scr. Metall. Mater, Vol 31(1994), pp.1151-1156.

Google Scholar