Microstructure and high tensile ductility of ZK60 magnesium alloy processed by cyclic extrusion and compression
作者： Jinbao Lin , Qudong Wang , Liming Peng , Hans J. Roven
DOI: 10.1016/J.JALLCOM.2008.09.031
关键词: Ultimate tensile strength 、 Ductility 、 Alloy 、 Strain rate 、 Microstructure 、 Extrusion 、 Fiber 、 Materials science 、 Metallurgy 、 Texture (crystalline)
摘要: Abstract The microstructure and texture development of an extruded ZK60 Mg alloy during cyclic extrusion compression (CEC) at 230 °C was investigated. Tensile tests were performed room temperature a strain rate 1 × 10−3 s−1. results show that the effectively refined by CEC processing. initial fiber became disintegrated processing developed new texture. After 4-passes, elongation-to-failure significantly increased almost three times compared with as-extruded alloy. Texture change grain refinement considered to be responsible for large tensile ductility in processed Furthermore, smaller intensity specimen may another reason ductility.
elsevier.com
researchgate.net 
sci-hub.se 参考文章(28)
T. Obara, H. Yoshinga, S. Morozumi, {112̄2}〈1123〉 Slip system in magnesium Acta Metallurgica. ,vol. 21, pp. 845- 853 ,(1973) , 10.1016/0001-6160(73)90141-7
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
Akira Takara, Yukio Nishikawa, Hiroyuki Watanabe, Hidetoshi Somekawa, Toshiji Mukai, Kenji Higashi, Secondary Processing of AZ31 Magnesium Alloy Concomitant with Grain Growth or Dynamic Recrystallization Materials Transactions. ,vol. 45, pp. 2377- 2382 ,(2004) , 10.2320/MATERTRANS.45.2377
Hiroyuki Watanabe, Akira Takara, Hidetoshi Somekawa, Toshiji Mukai, Kenji Higashi, Effect of texture on tensile properties at elevated temperatures in an AZ31 magnesium alloy Scripta Materialia. ,vol. 52, pp. 449- 454 ,(2005) , 10.1016/J.SCRIPTAMAT.2004.11.011
J Koike, T Kobayashi, T Mukai, H Watanabe, M Suzuki, K Maruyama, K Higashi, The activity of non-basal slip systems and dynamic recovery at room temperature in fine-grained AZ31B magnesium alloys Acta Materialia. ,vol. 51, pp. 2055- 2065 ,(2003) , 10.1016/S1359-6454(03)00005-3
Xinsheng Huang, Kazutaka Suzuki, Akira Watazu, Ichinori Shigematsu, Naobumi Saito, Microstructure and texture of Mg–Al–Zn alloy processed by differential speed rolling Journal of Alloys and Compounds. ,vol. 457, pp. 408- 412 ,(2008) , 10.1016/J.JALLCOM.2007.02.144
Hidetoshi Somekawa, Toshiji Mukai, Effect of texture on fracture toughness in extruded AZ31 magnesium alloy Scripta Materialia. ,vol. 53, pp. 541- 545 ,(2005) , 10.1016/J.SCRIPTAMAT.2005.04.048
Shih-Wei Lee, Jien-Wei Yeh, Microstructural evolution and superplasticity of Al-5.8Mg-0.23Mn alloys processed by reciprocating extrusion Metallurgical and Materials Transactions A-physical Metallurgy and Materials Science. ,vol. 36, pp. 2225- 2234 ,(2005) , 10.1007/S11661-005-0341-7
W.M. Gan, M.Y. Zheng, H. Chang, X.J. Wang, X.G. Qiao, K. Wu, B. Schwebke, H.-G. Brokmeier, Microstructure and tensile property of the ECAPed pure magnesium Journal of Alloys and Compounds. ,vol. 470, pp. 256- 262 ,(2009) , 10.1016/J.JALLCOM.2008.02.030
M. Y. Zhan, Y. Y. Li, W. P. Chen, W. D. Chen, Microstructure and mechanical properties of Mg–Al–Zn alloy sheets severely deformed by accumulative roll-bonding Journal of Materials Science. ,vol. 42, pp. 9256- 9261 ,(2007) , 10.1007/S10853-007-1885-2