Journal
MATERIALS TRANSACTIONS
Volume 55, Issue 1, Pages 120-122Publisher
JAPAN INST METALS
DOI: 10.2320/matertrans.MA201306
Keywords
magnesium alloy; cyclic extrusion and compression (CEC); texture; grain size; yield strength
Funding
- National Natural Science Foundation of China [51204117, 51074106, 50674067]
- Natural Science Foundation of Shanxi [2012021018-2]
- Shanxi Scholarship Council of China [2011-079]
- Program for the Top Young Academic Leaders of Higher Learning Institutions of Shanxi
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The microstructure, texture and room temperature tensile property of an extruded GW102K alloy processed by cyclic extrusion and compression (CEC) at 350 degrees C were investigated. Results show that the microstructure was effectively refined and the initial fiber texture changed to a new texture. The strength and ductility were simultaneously increased obviously. In particular, yield strength increases with decreasing grain sizes, and exhibiting clear grain size dependency according to Hall-Petch relation. The grain refines strengthening is the largest contributor to the yield strength and the texture play relatively minor roles on yield strength in CEC-processed GW102K alloy.
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