Microstructure Evolution and Mechanical Properties of an Al-Cu-Mg Alloy at Elevated Temperature

Min Hao; Ji Gang Ru; Ming Liu; Kun Zhang; Liang Wang; Zhao Hui Feng

doi:10.4028/www.scientific.net/AMR.1004-1005.148

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 1004-1005Microstructure Evolution and Mechanical Properties...

Microstructure Evolution and Mechanical Properties of an Al-Cu-Mg Alloy at Elevated Temperature

Abstract:

Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) were utilized to study the microstructure and mechanical behavior of an Al-Cu-Mg alloy after tensile test at 125°C, 150°C, 175°C and 200 °C, respectively. The yield strength and ultimate tensile strength decreased with the increase of temperature, while the elongation increased firstly and then decreased. The S and S′ precipitate after tension at elevated temperatures. When the temperature was higher than 175°C, the precipitate coarsens rapidly. The alloys displayed a shear fracture features at elevated temperature. The larger S′ and S phase coarsened and dropped which forming crack in the grain boundaries and precipitate interfaces, resulting in the decrease of the elongation of the alloy.

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Periodical:

Advanced Materials Research (Volumes 1004-1005)

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148-153

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1004-1005.148

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Online since:

August 2014

Authors:

Min Hao*, Ji Gang Ru, Ming Liu, Kun Zhang, Liang Wang, Zhao Hui Feng

Keywords:

Al–Cu–Mg Alloy, Elevated Temperature, Fracture, Precipitate

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References

[1] W. Cassada, J. Liu, J. Staley, Advanced Materials and Processes. 12 (2002) 27−29.

Google Scholar

[2] E.A. Stark, J.T. Staley, Progress in Aerospace Sciences. 32 (1996) 131−172.

Google Scholar

[3] J. Hirsch, K.F. Kahausen, L. Lohte, Mater Sci Forum. 396−402 (2002)1721−1730.

Google Scholar

[4] S. P. Ringer, T. Sakurai, I. J. Polnear, Acta Materialia. 45 (1997) 3731-3744.

Google Scholar

[5] S.C. Wang, M.J. Starink, N. Gao, Scripta Materialia. 54 (2006) 287−291.

Google Scholar

[6] S.P. Ringer, K. Hono. Materials Characterization. 44 (2000) 101-131.

Google Scholar

[7] I.N. Khan, M.J. Starink, Materials Science and Engineering A. 472 (2008)66−74.

Google Scholar

[8] L. Kovarik, S.A. Court, M.J. Mills, Acta Materiali. 56 (2008) 4804−4815.

Google Scholar

[9] S. Bdavis, Y. Li, L.E. Murr, D. Brownd, J.C. Mcclure, Scripta Materialia. 41 (1999) 809−815.

Google Scholar

[10] Y.J. Huang, Z.G. Chen, Z.Q. Zheng. Scripta Materialia. 64 (2011) 382−385.

Google Scholar

[11] L. Kovarik, S.A. Court, H.L. Fraser, M.J. Mills. Acta Materialia. 56 (2008) 4804-4815.

Google Scholar

[12] S. Muthu Kumaran. Materials Science and Engineering: A. 528 (2011) 4152-4158.

Google Scholar

[13] G. Sha, R.K.W. Marceau, X. Gao, B.C. Muddle, S.P. Ringer. Acta Materialia. 59 (2011) 1659-1670.

DOI: 10.1016/j.actamat.2010.11.033

Google Scholar

[14] Y.L. Zhao, Z.Q. Yang, Z. Zhang, G.Y. Su, X.L. Ma. Acta Materialia. 61 (2013) 1624-1638.

Google Scholar

[15] M. Weiss, A.S. Taylor, P.D. Hodgson, N. Stanford. Acta Materialia. 61(2013) 5278–5289.

Google Scholar

[16] T Kobayashi. Materials Science and Engineering A. 286 (2000) 333-341.

Google Scholar