Refinement of the microstructure during superplastic deformation of extruded Mg94Ni3Y1.5CeMM1.5 alloy
Refinement of the microstructure during superplastic deformation of extruded Mg94Ni3Y1.5CeMM1.5 alloy
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DOI：
10.1016/j.scriptamat.2010.08.059
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发表时间：
2011-01-01
影响因子：
6
通讯作者：
Adeva, P.
中科院分区：
文献类型：
--
作者：
Perez, P.;Eddahbi, M.;Adeva, P.
研究了挤压态Mg 94 Ni 3 Y15 CeMM 1（5）合金在250 ~ 400 ℃的显微组织和力学性能。变形试样中镁基体组织为等轴组织，应力指数接近2，表明晶界滑移是超塑性变形的控制机制（C）2010 Acta Materialia Inc Published by Elsevier Ltd All rights reserved
The microstructure and mechanical properties of extruded Mg94Ni3Y1 5CeMM1 (5) alloy were evaluated between 250 and 400 degrees C The alloy exhibited superplasticity between 300 and 400 degrees C Superplastic deformation was characterized by the refinement of coarse second-phase particles and their continuous redistribution in the magnesium matrix The equiaxed structure of the magnesium matrix in the deformed samples as well as the stress exponent close to 2 indicated that grain boundary sliding was the mechanism controlling the superplastic deformation (C) 2010 Acta Materialia Inc Published by Elsevier Ltd All rights reserved