期刊
MATERIALS TRANSACTIONS
卷 55, 期 1, 页码 120-122出版社
JAPAN INST METALS
DOI: 10.2320/matertrans.MA201306
关键词
magnesium alloy; cyclic extrusion and compression (CEC); texture; grain size; yield strength
资金
- 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
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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