Acta Metallurgica Sinica (English Letters) >
Precipitation and responding damping behavior of heat-treated AZ31 magnesium alloy
Received date: 2008-01-17
Revised date: 2008-07-07
Online published: 2009-10-10
Microstructure observation and dynamic mechanical analysis were carried out to investigate the precipitation and responding damping behaviors of AZ31 magnesium alloy. All the strain amplitude-dependent damping curves of the aged alloys are located between the curves of solutionized and as-cast alloys, although they have different critical strain amplitudes. The G-L theory is employed to explain the damping mechanism involving the interaction between the dislocation and the precipitated phase. In addition, a damping peak is observed at temperatures close to 330 ℃ for AZ31 magnesium alloy, which is related to the β-Mg17Al12 phase dissolution.
Key words： Magnesium alloys; Damping behavior; Precipitation; G-L model; Damping peak
Diqing WAN , Jincheng WANG , Gaifang WANG , Lin LIN , Zhigang FENG . Precipitation and responding damping behavior of heat-treated AZ31 magnesium alloy[J]. Acta Metallurgica Sinica (English Letters), 2009 , 22(1) : 1 -6 . DOI: 10.1016/S1006-7191(08)60063-0
[1] Rubhera R.A.M. Mato and T.S. Mufuruki,Trans Res Part D: Trans Environ 4 (1999) 81.
[2] R. González-Martinez, J. Goken, D. Letzig, K.Steinhoff and K.U. Kainer,J Alloy Compd 437(2007)127.
[3] L.H. Liao, X.Q. Zhang, H.W. Wang, X.F. Li and N.H. Ma,J Alloy Compd 429(2007)163.
[4] C.M. Liu, R.F. Ji, H.T. Zhou and M.A. Chen,Chin J Nonferrous Met 15(2005)1319 (in Chinese).
[5] X.S. Hu, K. Wu and M.Y. Zheng, Scr Mater 54 (2006) 1639.
[6] Z. Trojanová, A. Mielczarek, W. Riehemann and P.Lukác, Compos Sci Technol 66(2006)585.
[7] S. Ishihara, Z.Y. Nan and T. Goshima,Mater Sci Eng A468-470(2007)214.
[8] Z.Y. Zhang, X.Q. Zeng and W.J. Ding, Mater Sci Eng A392(2005)150.
[9] S. Celotto, Acta Mater 48(2000)1775.
[10] O.A. Lambri, W. Riehemann, E.J. Lucioni and R.E. Bolmaro, Mater Sci Eng A442(2006)476.
[11] Z.S. Li, F.S. Pan and J. Zhang, Met Forming Technol 22(2004)54 (in Chinese).
[12] A. Granato and K. Lücke,J Appl Phys 27(1956)583.
[13] A. Granato and K. Lücke,J Appl Phys 27(1956) 789.
[14] Robert M. Allen and John B. Vander Sande, Acta Metall 28(1980)1185.
[15] G.L. Hao, F.S. Han, Q.Z. Wang and J. Wu, Physica B391(2007)186.
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