Microstructural Evolution during Recrystallization of Magnesiun Alloys

Article Preview

Abstract:

Microstructural evolution during the annealing of cold rolled Mg, Mg-1.5Nd and Mg-3Y sheets has been examined. The experimental results show a significant difference in recrystallization kinetics and grain growth between pure Mg and Mg-RE alloy sheets. Pure Mg sheet shows rapid recrystallization and grain growth, whereas recrystallization is considerably retarded in the Mg-RE alloys. Although recrystallized grains which are triggered at shear bands in the cold rolled pure Mg sheet show a relatively weak texture with a basal pole split into the sheet rolling direction, rapid grain growth is accompanied by re-strengthening of the basal-type texture. In contrast, a weak texture appears in the early recrystallization stage in Mg-RE alloys and is retained during annealing due to retarded recrystallization and grain growth.

You might also be interested in these eBooks

Info:

Periodical:

Materials Science Forum (Volumes 706-709)

Pages:

1291-1296

Citation:

Online since:

January 2012

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2012 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] J. Bohlen, M.R. Nürnberg, J.W. Senn, D. Letzig, S.R. Agnew, Acta Mater. 55 (2007) 2101.

Google Scholar

[2] L.W.F. Mackenzie, M.O. Pekguleryuz, Scripta Mater. 59 (2008) 665.

Google Scholar

[3] K. Hantzsche, J. Bohlen, J. Wendt, K.U. Kainer, S. Yi, D. Letzig, Scripta Mater. 63 (2010) 725.

DOI: 10.1016/j.scriptamat.2009.12.033

Google Scholar

[4] S. Sandlöbes, S. Zaefferer, I. Schestakow, S. Yi, R. Gonzalez-Martinez, Acta Mater. 59 (2011) 429.

Google Scholar

[5] E.A. Ball, P.B. Pangnell, Scripta Metall. Mater. 31 (1994) 111.

Google Scholar

[6] F.J. Humpreys, M. Hatherly, Recrystallization and Related Annealing Phenomena, Elsevier Ltd, Oxford, (1996).

Google Scholar

[7] N. Stanford, M.R. Barnett, Mater. Sci. Eng. A496 (2008) 399.

Google Scholar

[8] J.C. McDonald, Tans. AIME 137 (1940) 430.

Google Scholar

[9] S.L. Couling, J.F. Pashak, L. Sturkey, Trans. ASM 51 (1958) 94.

Google Scholar

[10] F. Bachmann, R. Hielscher, H. Schaeben, Solid State Phenomena 160 (2010) 63.

Google Scholar

[11] S. Yi, I. Schestakow, S. Zaefferer, Mater. Sci. Eng. A516 (2009) 58.

Google Scholar

[12] M.R. Barnett, M.D. Nave, C.J. Bettles, Mater. Sci. Eng. A386 (2004) 205.

Google Scholar

[13] X. Huang, K. Suzuki K, A. Watazu, I. Shigematsu, N. Saito, J. Alloys Compd. 457 (2008) 408.

Google Scholar

[14] S.R. Agnew, M.H. Yoo, C.N. Tome, Acta Mater. 49 (2001) 4277.

Google Scholar