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http://dx.doi.org/10.9726/kspse.2018.22.1.087

Internal Friction Behavior in AZ31 Magnesium Alloy after Annealing Treatment  

Kwak, Juho (Marine Convergence Design Co-work, Pukyong National University)
Kang, Changyong (Department of Metallugical Engineering, Pukyong National University)
Kim, Kwonhoo (Department of Metallurgical Engineering, Pukyong National University)
Publication Information
Journal of Power System Engineering / v.22, no.1, 2018 , pp. 87-93 More about this Journal
Abstract
Specimens were machined out from hot-rolled AZ31 magnesium alloy, and deformed at 623K with rolling reduction of 30%. After hot rolling, specimens were annealed at various range of temperature and time. In this study, static recrystallization was occurred during heat treatment, however, variation of main component and intensity of texture was not revealed. The results of microstructure observation, damping capacity test and dislocation mechanism indicated that increasing of damping capacity was caused by grain growth. It means that grain size is effective factor to damping capacity.
Keywords
Magnesium Alloy; Annealing; Internal Friction; Damping capacity; Microstructure; Texture;
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  • Reference
1 Y. Kojima, 2001, "Project of Platform Science and Technology for Advanced Magnesium Alloys", Materials Transactions, Vol. 42, No. 7, pp. 1154-1159.   DOI
2 G. Lee, K. Kim and C. Kang, 2014, "Effect of heat treatment on the microstructure and damping capacity of hot rolled magnesium alloy", J. of the Korean Soci. for Power System Eng., Vol. 18, No. 4, pp. 66-71.
3 K. Nishiyama, R. Matsui, Y. Ikeda, S. Niwa and T. Sakaguchi, 2003, "Damping properties of a sintered Mg-Cu-Mn alloy", J. Alloys Compd, Vol. 355, pp. 22-25.   DOI
4 H. Kageyama, M. Shimazu, S. Kamado and Y. Kojima, 1998, "Effect of alloying elements and heat treatment on damping capacity of Mg-Al alloys", J. of JILM, Vol. 48, No. 5, pp. 217-221.   DOI
5 D. Jang and S. Kim, 2008, "Developement Trend of Damping Mg Alloys", J. of the Korea Foundry Society, Vol. 28, No. 5, pp. 199-203.
6 A. Rollett, F. J. Humphreys, G. S. Rohrer and M. Hatherly, 2004, "Recrystallization and related annealing phenomena", Pergamon, pp. 1-658.
7 X. Yang, Y. ZHU, H. Miura and T. Sakai, 2010, "Static recrystallization behavior of hot-deformed magnesium alloy AZ31 during isothermal annealing", Trans. Nonferrous Met. Soc. China, Vol. 20, pp. 1269-1274.   DOI
8 A. Takayma, X. Yang, H. Miura and T. Sakai, 2008, "Continuous static recrystallization in ultrafine-grained copper processed by multidirectional forging", Mater. Sci. Eng. A, Vol. 478, pp. 221-228.   DOI
9 K. Sugimoto, K. Matsui, T. Okamoto and K. Kishitake, 1975, "Effect of Crystal Orientation on Amplitude - Dependent Damping in Magnesium", Trans. JIM, Vol. 16, pp. 647-655.   DOI