Deformation mechanism transition with strain rate in Mg–3Al–1Zn alloy at room temperature

作者: T. Matsunaga , H. Somekawa , H. Hongo , M. Tabuchi

DOI: 10.1016/J.MSEA.2015.09.029

关键词:

摘要: Abstract At room temperature, the strain-rate sensitivity (SRS) was almost negligible at high strain rates in as-extruded Mg–3Al–1Zn alloy because of exponent ( m ) 0.008. However, SRS became remarkable with decreasing rate down to 10 −8  s −1 , where value increases up 0.06.

参考文章(17)
J. Koike, R. Ohyama, T. Kobayashi, M. Suzuki, K. Maruyama, Grain-Boundary Sliding in AZ31 Magnesium Alloys at Room Temperature to 523 K Materials Transactions. ,vol. 44, pp. 445- 451 ,(2003) , 10.2320/MATERTRANS.44.445
Rajesh Korla, Atul H. Chokshi, Strain-rate sensitivity and microstructural evolution in a Mg―Al―Zn alloy Scripta Materialia. ,vol. 63, pp. 913- 916 ,(2010) , 10.1016/J.SCRIPTAMAT.2010.06.047
T.G. Langdon, A unified approach to grain boundary sliding in creep and superplasticity Acta Metallurgica Et Materialia. ,vol. 42, pp. 2437- 2443 ,(1994) , 10.1016/0956-7151(94)90322-0
E. Karimi, A. Zarei-Hanzaki, M.H. Pishbin, H.R. Abedi, P. Changizian, Instantaneous strain rate sensitivity of wrought AZ31 magnesium alloy Materials & Design. ,vol. 49, pp. 173- 180 ,(2013) , 10.1016/J.MATDES.2013.01.068
T. Neeraj, D.-H. Hou, G.S. Daehn, M.J. Mills, Phenomenological and microstructural analysis of room temperature creep in titanium alloys Acta Materialia. ,vol. 48, pp. 1225- 1238 ,(2000) , 10.1016/S1359-6454(99)00426-7
Tetsuya Matsunaga, Tatsuya Kameyama, Kohei Takahashi, Eiichi Sato, Intragranular deformation mechanisms during ambient-temperature creep in hexagonal close-packed metals Materials Transactions. ,vol. 50, pp. 2865- 2872 ,(2009) , 10.2320/MATERTRANS.M2009224
Hidetoshi Somekawa, Toshiji Mukai, Hall–Petch Breakdown in Fine-Grained Pure Magnesium at Low Strain Rates Metallurgical and Materials Transactions A-physical Metallurgy and Materials Science. ,vol. 46, pp. 894- 902 ,(2015) , 10.1007/S11661-014-2641-2
A. G. Evans, R. D. Rawlings, The Thermally Activated Deformation of Crystalline Materials physica status solidi (b). ,vol. 34, pp. 9- 31 ,(1969) , 10.1002/PSSB.19690340102
PD Wu, XQ Guo, H Qiao, DJ Lloyd, None, A constitutive model of twin nucleation, propagation and growth in magnesium crystals Materials Science and Engineering A-structural Materials Properties Microstructure and Processing. ,vol. 625, pp. 140- 145 ,(2015) , 10.1016/J.MSEA.2014.11.096