Microstructure Evolution and Mechanical Properties of 7A09 Aluminum Alloy during Rapid Solidifications

Wei Wei Wang; Bin Bin Jia; Jing Bo Yu

doi:10.4028/www.scientific.net/AMR.79-82.1791

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 79-82Microstructure Evolution and Mechanical Properties...

Microstructure Evolution and Mechanical Properties of 7A09 Aluminum Alloy during Rapid Solidifications

Abstract:

Microstructure evolution and mechanical properties of 7A09 aluminum alloy ribbon prepared by rapid cooling solidification are studied. Single roller is applied to produce rapid solidification ribbon of 7A09 aluminum alloys. Microstructure characteristics and mechanical properties of the rapid solidified ribbon of 7A09 aluminum alloys are studied by means of X-ray diffraction (XRD), scan electron microscopy (SEM) and hardness measurement. The results show that the rotate speed of the roller is the key factor affecting the ability of the forming ribbon. At a roller rotate speed of 1500rpm, the ribbon with a good quality can be obtained. Microstructure features of the rapid solidification ribbon are refined with the increase of the cooling rate, all of the crystals translate into nanocrystalline. All the hardness of the rapid solidification ribbon of 7A09 aluminum alloys is higher than that of the original alloys and increases with the rotate speed of the rotor.

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Periodical:

Advanced Materials Research (Volumes 79-82)

Pages:

1791-1794

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.79-82.1791

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Online since:

August 2009

Authors:

Wei Wei Wang, Bin Bin Jia, Jing Bo Yu

Keywords:

7A09 Aluminum Alloy, Rapid Solidification, Single Roller

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References

[1] Govind K, Suseelan Nair, M. C. Mittal, Kishori Lal, R. K. Mahanti and C. S. Sivaramakrishnan: Mater. Sci. Eng. A Vol. 304-306 (2001), p.520.

DOI: 10.1016/s0921-5093(00)01507-0

Google Scholar

[2] Lavernia E. J, Ayers J. D and Srivatsan T. S. Inter. Mater. Rev. Vol. 37 No. 1 (1991), p.1.

Google Scholar

[3] Yude Xiao, Study on Microstructures and Properties of Rapidly Solidified AlFe VSi Heat-Resistant Aluminum Alloy and Preparation Techniques of Its Large-Size Products (Ph. D. Central South University, 2003) (in Chinese).

Google Scholar

[4] Dongfei Xiao, Dunqiang Tan, Gaoxun Ouyang and Wei Chen: Foundry Vol. 9 (2007), p.909 (in Chinese).

Google Scholar

[5] B. Ch. Zhang: "onferrous Metals and the heat treatment (Northwestern Polytechnical University Press, China 1993) (in Chinese).

Google Scholar

[6] Aimin Zhao, Weimin Mao, Zisheng Zhen, Chunmei Jiang and Xueyou Zhong: The Chinese Journal of Nonferrous Metals Vol. 11 (2001): p.827 (in Chinese).

Google Scholar

[7] Yude Xiao, Yongyu Wu, Wenxian Li, Zhengqing Ma and Richu Wang: Journal of Central South University of Technology (Natural Science) Vol. 36 (2005).

Google Scholar