High Cycle Fatigue Behavior of Eco7075-T73 Aluminum Alloy

Gwan Yeung Kim; Kyu Sik Kim; Shae K. Kim; Young Ok Yoon; Kyu Sang Cho; Kee Ahn Lee

doi:10.4028/www.scientific.net/AMR.690-693.1775

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 690-693High Cycle Fatigue Behavior of Eco7075-T73...

High Cycle Fatigue Behavior of Eco7075-T73 Aluminum Alloy

Abstract:

This study examined the microstructures, mechanical and fatigue properties of the recently developed Eco7075 alloy. Eco7075 is made using Eco-Mg (Mg-Al₂Ca) in place of the element Mg during the manufacture of alloy 7075, having economically advantageous and superior properties. In the microstructure observation, average grain size was measured to be 5.2 μm. It consisted of Al matrix containing minute amounts of Al₂CuMg, MgZn₂, and Ca phases and showed microstructures with reduced amounts of Fe-based phases or oxides. Tensile tests exhibited that this alloy had yield strength of 492 MPa, tensile strength of 548 MPa, and elongation of 12.8%, which showed higher strengths than the conventional 7075 alloy but the similar elongation. Fatigue properties improved significantly compared to those of conventional 7075 alloys (Eco7075: fatigue limit of 330MPa). The superior tensile and fatigue properties of Eco7075-T73 alloy were mainly attributed to grain size refinement, homogeneous distribution of main strengthening phases, and reduced harmful phases of Fe-based intermetallic and oxide.

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Periodical:

Advanced Materials Research (Volumes 690-693)

Pages:

1775-1778

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.690-693.1775

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Online since:

May 2013

Authors:

Gwan Yeung Kim, Kyu Sik Kim, Shae K. Kim, Young Ok Yoon, Kyu Sang Cho, Kee Ahn Lee

Keywords:

Al-Zn-Mg Alloy, CA, Eco7075-T73 Alloy, High Cycle Fatigue (HCF), Modified 7075, Tensile

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References

[1] S. Miller, L. Zhuang, J. Bottema, A. J. Wittebrood, P. D. Smet, A. Hazler, A. Vieregge: Mater Sci. Vol. 280 (2000), p.37

Google Scholar

[2] S. Malekjani, P. D. Hodgson, P. Cizek, I. Sabrov, T. B. Hilditch: Int. J. Fatigue Vol. 33 (2011), p.700

Google Scholar

[3] Y. Xue, H. E. Kadiri, M. F. Horstemeyer, J. B. Jordon, H. Weiland: Acta. Mater. Vol. 55 (2007), p. (1975)

Google Scholar

[4] H. Jian, F. Jiangg, K. Wen, L. Jiang, H. Huang, L. Wei: Trans. Nonferrous Met. Soc, Vol. 19 (2009), p.1031

Google Scholar

[5] D. P. Mondal, N. Jha, A. Badkul, S. Das, M. S. Yadav, P. Jain: Mater. Des. Vol.32 (2001), p.2803

Google Scholar

[6] C. E. Campbell, L. A. Bendercky W. J. Boettinger, R. Ivester: Mater. Sci. Eng. A. Vol. 430 (2006), p.15

Google Scholar

[7] A. F. Ostermann: Metall. Trans. A. Vol. 2 (1971), p.2898

Google Scholar

[8] A. Monsalve, M. Paez, M. Toledano, A. Artigas, Y. Sepulveda, N. Valencia: Fatigue. Fract. Engng. Mater. Struct. Vol. 30 (2006), p.748

Google Scholar