Browse > Article
http://dx.doi.org/10.3365/KJMM.2010.48.04.305

Development of Textures and Microstructures during Compression in a Hot-Extruded AZ31 Mg Alloy  

Jung, Byung Jo (Department of Materials Science and Metallurgical Engineering, Sunchon National University)
Lee, Myung Jae (Department of Materials Science and Metallurgical Engineering, Sunchon National University)
Park, Yong-Bum (Department of Materials Science and Metallurgical Engineering, Sunchon National University)
Publication Information
Korean Journal of Metals and Materials / v.48, no.4, 2010 , pp. 305-314 More about this Journal
Abstract
The development of textures and microstructures during plastic deformation in a hot-extruded AZ 31 Mg alloy was investigated using a compression test with such parameters as deformation temperature, strain rate. It was observed from true stress-strain curves that twinning involves changes of the flow stresses. In the early stages of deformation at temperatures lower than $200^{\circ}C$, the occurrence of twins resulted in a decrease of the work-hardening rate, which increased drastically at a true strain of -0.05. The evolution of the deformation textures were assessed with the aid of EBSD analyses in terms of the competition between twinning and slip activity.
Keywords
Mg alloy; EBSD; texture; twinning; extrusion;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
Times Cited By SCOPUS : 2
연도 인용수 순위
1 L. Jiang, J. J. Jonas, A. A. Luo, A. K. Sachdev, and S. Godet, Scripta Mater. 54, 771 (2006)   DOI   ScienceOn
2 T. Obara, H. Yoshinaga, and S. Morozumi, Acta Mater. 21, 845 (1973)   DOI   ScienceOn
3 Wang, Y. N. and Huang, J. C. Acta Mater. 55,897 (2007)   DOI   ScienceOn
4 M. R. Barnett, Z. Keshavarz, A. G. Beer, and D. Atwell, Acta Mater. 52, 5093 (2004)   DOI   ScienceOn
5 L. Jiang, J. J. Jonas, A. A. Luob, A. K. Sachdev, and S. Godet, Mater. Sci. Eng. A 445-446, 302 (2007)   DOI   ScienceOn
6 M. R. Barnett, Mater. Sci. Eng. A 464, 1 (2007)   DOI   ScienceOn
7 S.-H. Choi, D. H. Kim, and B. S. Seong, Met. Mater. Int. 15, 239 (2009)   DOI   ScienceOn
8 J. A. Del Valle and M. T. Perez-Prado, Mater. Sci. Eng. A 355, 68 (2003)   DOI   ScienceOn
9 S.-H. Choi, J. K. Kim, B. J. Kim, and Y. B. Park, Mater. Sci. Eng. A 488, 458 (2008)   DOI   ScienceOn
10 R. Gehrmann, M. M. Frommert, and G. Gottstein, Mater. Sci. Eng. A 395, 338 (2005)   DOI   ScienceOn
11 J. F. Stohr and J. P. Poirier, Philos. Mag. 25, 1313 (1972)   DOI
12 M. D. Nave and M. R. Barnett, Scripta Mater. 51, 881 (2004)   DOI   ScienceOn
13 Y. Chino, K. Kimura, and M. Mabuchi, Mater. Sci. Eng. A 486, 481 (2008)   DOI   ScienceOn
14 T. Laser, Ch. Hartig, M. R. Nurnberg, D. Letzig, and R. Bormann, Acta Mater. 56, 2791 (2008)   DOI   ScienceOn
15 L. Jiang, J. J. Jonas, R. K. Mishra, A. A. Luo, A. K. Sachdev, and S. Godet, Acta Mater. 55, 3899 (2007)   DOI   ScienceOn
16 H. K. Lin, J. C. Huanga, and T. G. Langdon, Mater. Sci. Eng. A 402, 250 (2005)   DOI   ScienceOn
17 A. Ga1iyev, R. Kaibyshev, and G. Gottstein,Acta Mater. 49, 1199 (2001)   DOI   ScienceOn
18 S.-B. Vi, C. H. J. Davies, H.-G. Brokmeier, R. E. Bo1maro, K. U. Kainer, and J. Homeyer, Acta Mater. 54, 549 (2006).   DOI   ScienceOn
19 N. J. Park, J. H. Hwang, J. S. Roh, J. Kor. Met. & Mater. 47, 1 (2009)
20 Barnett, M. R., Davies, C. H. J. and Ma, X. Scripta. Mater. 52, 627 (2005)   DOI   ScienceOn
21 Jain, A. and Agnew, S. R. Mater. Sci. Eng. A 462, 29 (2007)   DOI   ScienceOn
22 T. Walde and H. Riedel, Mater. Sci. Eng. A 443, 277 (2007)   DOI   ScienceOn
23 S. R. Agnew, P. Mehrotra, T. M. Lillo, G. M. Stoica, and P. K. Liaw, Acta Mater. 53, 3135 (2005)   DOI   ScienceOn
24 D. W. Browna, S. R. Agnew, M. A. M. Bourke, and T. M. Holden, Mater. Sci. Eng. A 399, 1 (2005)   DOI   ScienceOn
25 M. R. Barnett, Mater. Sci. Eng. A 464, 8 (2007)   DOI   ScienceOn
26 M. R. Barnett, Journal of Light Metals. 1,167 (2001)   DOI   ScienceOn
27 W. J. Kim, S. I. Hong, Y. S. Kim, S. H. Min, H. T. Jeong, and J. D. Lee, Acta Mater. 51, 3293 (2003).   DOI   ScienceOn
28 H. J. bunge, Texture Analysis in Materials Science, p.47 butterworths Pub., London (1982)
29 S.-H. Choi, E. J. Shin, and B. S. Seong, Acta Mater. 55, 4181 (2007)   DOI   ScienceOn