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HomeMaterials Science ForumMaterials Science Forum Vols. 539-543HRTEM Observation of the Precipitates in...

HRTEM Observation of the Precipitates in Heat-Resistant Mg-Gd-Y-Zr Alloy

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Abstract:

The high resolution transmission electron microscope (HRTEM) observation was carried out to investigate the microstructure of precipitates in Mg-Gd-Y-Zr alloy. In the early stage of aging at 423K, monoatomic layers were observed along the (1 1 00)Mg plane. After 64h aging at 423K, the contrast of β” phase based on ordered D019 hexagonal super lattice structure was appeared. The monoatomic layers, two layers spaced by (1 1 00) Mg planes and β’ phase based on bco-structure were observed in the specimen aged for 128h. In the peak- aged specimen, the β’ phase and monoatomic layers were observed.

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Periodical:

Materials Science Forum (Volumes 539-543)

Pages:

1769-1774

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.539-543.1769

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Online since:

March 2007

Authors:

Tokimasa Kawabata, Yuya Fukuda, Kenji Matsuda, Shigeharu Kamado, Yo Kojima, Susumu Ikeno

Keywords:

Hardness, High Resolution Transmission Electron Microscopy, Mg Rare Earth Alloy, Precipitation

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[1] G. W. Lorimer : Proc. of the Conf. on Magnesium technology, The Institute of Metals, London, (1987), 47.

[2] I.J. Polmear : Light alloys 3rd ed. - Metallurgy of the light metals-, edward Arnold, London, (1995), 231.

[3] M. Ahmed et al : Proc. of Int. Conf. on Magnesium Alloys and Their Applications ed. by Mordlike B. L. and Hehmann F., DGM Informationsgesellschaft, Oberusel, (1992), 301.

[4] M. E. Drits., L. L. Rokhlin and N. I. Nikitina : Russian Metallurgy, No. 5, (1983), 178.

[5] Sigeharu Kamado et al : Proc. of the Int. Conf. on Magnesium Alloys and Their Applications, Werkstoff-Informationsgesellschaft mbH, ed. by B. L. Mordlike and K. U. Kainer, Wolfsburg, GERMANY, (1998), 169.

[6] S. Kamado et al：International symposium of Light metals Processing and applications at the 34nd Annual Conference of Metallurgical Society of CIM, Ed. by S. MacEwen and J. -P. Gilardeau, Metallurgical Society of CIM, Mntreal, Canada, (1995).

[7] I. Anthony Anyanwu et al. ：Material Transactions，42，No. 7，(2001)，1206.

[8] I. Anthony Anyanwu et al. ：Material Transactions，42，No. 7，(2001)，1212.

[9] L.L. Rokhlin and N. I. Nikitina : Phys. Met. Metall., 62, (1986), 145.

[10] L.L. Rokhlin et al：Phys. Met. Metall., 59 (1985), 136.

[11] S. Kamado et al:J. Light metals, Vol. 42, No. 11, (1992), 727.

[12] S. Kamado et al : Int. Symp. of Light Metals Processing and Applications at the 32nd Anuual Conference of Metallurgists of the Metallurgical Society of CIM, Ed. by C. Bickert, M. Bouchard, g. Davies, E. Ghali and e. Jiran, Metallurgical Society of CIM, Montreal, Canada, (1993).

[13] S. Iwasawa et al: J. Light metals, 44, No. 1, (1994), 3.

[14] C. Antion et al : Acta Materialia, 51, (2003), 5335.

[15] S. Kamado and Kojima : Proc. of 3rd International Magnesium Conf. ed. by Lorimer G.W., The Institute of Materials, London (1997), 327.

[16] Y. Negishi et al : J. Japan Institute of Light Metals, 45(1995).