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Changes of Low Cycle Fatigue Behavior of AI-Mg-Si Alloy with Severe Plastic Deformation and Heat Treatment  

Kim, W.H. (Department of Materials Science and Engineering, Korea University)
Kwun, S.I. (Department of Materials Science and Engineering, Korea University)
Publication Information
Journal of the Korean Society for Heat Treatment / v.22, no.4, 2009 , pp. 217-222 More about this Journal
Abstract
The effects of severe plastic deformation by equal channel angular pressing (ECAP) and subsequent heat treatment on the low cycle fatigue behaviors of Al-Mg-Si alloy were investigated. The specimens which were peak aged at $175^{\circ}C$ after solution treatment showed cyclic hardening at all strain amplitudes, while the specimens ECAPed after solution treatment showed cyclic softening at all strain amplitudes during fatigue. The specimens aged at $100^{\circ}C$ after ECAP showed slight cyclic hardening. Various changes of cyclic fatigue behavior after severe plastic deformation and/or heat treatment were discussed in terms of the microstructural changes and precipitation conditions.
Keywords
ECAP; Low cycle fatigue; Precipitates; Al-Mg-Si alloy;
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1 A. Vinogradov and S. Hashimoto : Adv. Eng. Mater., 5 (2003) 351   DOI   ScienceOn
2 J. K. Kim, H. G. Jeong, S. I. Hong, Y. S. Kim and W. J. Kim : Scripta Mater., 45 (2001) 901   DOI   ScienceOn
3 M. N. Desmukh, R. K. Pandey and A. K. Mukhopadhyay : Mater. Sci. Eng. A, 435 (2006) 318   DOI   ScienceOn
4 J. R. Weertman : Mater. Sci. Eng. A, 166 (1993) 161   DOI   ScienceOn
5 M. M. Sharma, M. F. Amateau and T. J. Eden : Mater. Sci. Eng. A, 424 (2006) 87   DOI   ScienceOn
6 H. J. Roven, M. Liu and J. C. Werenskiold : Mater. Sci. Eng. A, 483 (2008) 54   DOI   ScienceOn
7 V. M. Segal : Mater. Sci. Eng. A, 197 (1995) 157   DOI   ScienceOn
8 S. J. Andersen, C. D. Marioara, A. Frøseth, R. Vissers and H. W. Zandbergen : Mater. Sci. Eng. A, 390 (2005) 127   DOI   ScienceOn
9 N. C. Parson and T. Sheppard : Mater. Sci. Tech., 4 (1988) 179
10 A. Vinogradov, Y. Kaneko, K. Kitazawa, S. Hashimoto, V. Stolyarov and R. Valiev : Scripta Mater., 36 (1997) 1345   DOI   ScienceOn