Mechanical Properties of Hot-Pressed Compacts Made by Alumina Particle Dispersion Magnesium Powders

Shigehiro Kawamori; Kiyoshi Kuroda; Fujiwara Hiroshi; Kei Ameyama

doi:10.4028/www.scientific.net/MSF.706-709.1915

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HomeMaterials Science ForumMaterials Science Forum Vols. 706-709Mechanical Properties of Hot-Pressed Compacts Made...

Mechanical Properties of Hot-Pressed Compacts Made by Alumina Particle Dispersion Magnesium Powders

Abstract:

To enhance the mechanical properties of Mg alloys, powders of pure Mg (Al₂O₃/Mg) dispersed with over 10 vol% Al₂O₃ particles were formed by ball milling powder mixtures of pure Mg and Al₂O₃ particles with particle sizes of 0.3 and 1 μm. The effect of the Al₂O₃ content of hot-pressed discs of Al₂O₃/Mg powders on the mechanical properties was investigated. The hardness increased sharply at certain Al₂O₃ content. This is considered to be because of the development of Al₂O₃ particle strengthening due to the excellent interfacial bonding between Mg and Al₂O₃ particles when the Al₂O₃/Mg discs contain a sufficient amount of Al₂O₃ particles and have a sufficient interparticle distance. The maximum hardness was 220 HV. The tensile strength increased as Al₂O₃ content was increased. The Al₂O₃/Mg plate with Al₂O₃ particles sizes of 0.3 and 1 μm indicated maximum values of the bending strength at 10 and 14vol%Al₂O₃content, respectively.

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Materials Science Forum (Volumes 706-709)

Pages:

1915-1920

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.706-709.1915

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Online since:

January 2012

Authors:

Shigehiro Kawamori, Kiyoshi Kuroda, Fujiwara Hiroshi, Kei Ameyama

Keywords:

Alumina Particle Dispersion Magnesium Powder, Bending Strength, Hardness, Hot-Pressing, Tensile Strength

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References

[1] S. F. Hassan and M. Gupta: J. Mater. Sci. Eng. A 392(2005), p.163.

Google Scholar

[2] S. F. Hassan and M. Gupta: J. Metastable and Nanocrystalline Mater. 23(2005), p.151.

Google Scholar

[3] X. L. Zhong and M. Gupta: J. Metastable and Nanocrystalline Mater. 23(2005), p.171.

Google Scholar

[4] R. Unverricht, V. Peitz, W. Riehemann and H. Ferkel: Proc. Conf. on Magnesium Alloys and Their Applications, Deutsche (Gesellschaft fur Materialkunde, 1998) , pp.327-332.

Google Scholar

[5] H. Fujiwara, M. Nakatani, Y. Iwahashi and K. Ameyama: Adv. Mater. Res. 26-28 (2007), p.421.

Google Scholar

[6] S. Kawamori and T. Machida: Mater. Trans. 48(2007) , p.373.

Google Scholar

[7] Susan Hosch, et al.: ASM HAND BOOK Volume 2, (ASM international, 1990) , p.480.

Google Scholar

[8] S. Ikeno and K. Matsuda, T. Matsuki, T. Suzuki, N. Endo, T. Kawabata and Y. Uetani: J. Mater. Sci. 42(2007) , p.5680.

Google Scholar

[9] R. Ichikawa and R. Saito: J. Jpn Inst. Light Met. 14(1964) , p.264.

Google Scholar