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Effect of Heat Treatment on Microstructures and Properties of Mg-9Gd-4Y-0.3Zr Alloy

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Abstract:

microstructures, aging hardness, mechanical properties of Mg-9Gd-4Y-0.3Zr alloys were investigated. The microstructure is a typical dendritic structure of as-cast sample, The aging test of extruded samples were carried at a temperature rang of 200-300°C and at a different aging time. The aging peak hardness is about 120HV, tensile strength was tested at temperature 25°C, 200°C, 250°C and 300°C, tensile strengths are 375 Mpa, 364 Mpa, 329 Mpa, 286 Mpa respectively, the maximum elongation is 13.32% at 300°C. The fracture mode is mainly microvoid coalescence fracture combination the brittle cleavage fracture at room temperature, and microvoid coalescence fracture at 200-300°C.

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Periodical:

Advanced Materials Research (Volumes 26-28)

Pages:

167-170

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.26-28.167

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Online since:

October 2007

Authors:

Su Juan Yao, W.X. Li, Sheng Yang, Dan Qing Yi

Keywords:

Fracture, Magnesium Alloy, Microstructure, Re

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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References

[1] Kentaro Yannada, Yoshiyuki Okubo, Masashi Shiono et al. Materials transactions. Vol. 47 (2006), p.1066.

Google Scholar

[2] J. Cízek, I. Prochǎzka, B. Smola. Materials Science forum. Vol. 482(2005), p.183.

Google Scholar

[5] Jakub Cizek, Ivan Prochazka, Bohumil Amola, Ivana Stulikova. Phys. Stat. Vol. 203(2006), p.466.

Google Scholar

[5] Bohumil smola, Ivana Stulífová, Jitka Pelcová, et al. Z. Metallkd. Vol. 94(2003), p.553.

Google Scholar

[6] J.F. Nie, B.C. Muddle. scripta materialia. Vol. 40. 10 (1999), p.1089.

Google Scholar

[7] Ifeanyi Anthony Anyanwu, Shigeharu Kamado and Yo Kojima. Materials Transactions. Vol. 42 (2001).

Google Scholar