Effects of extrusion conditions on microstructure and mechanical properties of AZ31B magnesium alloy extrusions.
Effects of extrusion conditions on microstructure and mechanical properties of AZ31B magnesium alloy extrusions.
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挤压条件对AZ31B镁合金挤压材显微组织和力学性能的影响
DOI：
10.2464/jilm.51.539
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发表时间：
2001
期刊：
影响因子：
--
通讯作者：
Y. Oki
中科院分区：
文献类型：
--
作者：
T. Murai;S. Matsuda;S. Miyamoto;Y. Oki
研究了坯料均匀化和挤压工艺对AZ 31 B镁合金挤压件组织和性能的影响。均匀化处理使铸态坯料晶界上的Mg-Al和Mg-Al-Zn化合物消失。然后，挤出的延伸率通过均匀化而增加。随着挤压比的增加，挤压件的延伸率也通过晶粒细化而增加。坯料温度越低，挤压速度越小，挤压件的晶粒尺寸越小。结果，挤压件的伸长率增加。
The effects of billet homogenization and extrusion conditions on microstructure and mechanical properties of AZ31B magnesium alloy extrusions have investigated. Mg–Al and Mg–Al–Zn compounds observed on grain boundaries of as cast billet have disappeared by the homogenization. Then, the elongation of the extrusion increases by the homogenization. As the extrusion ratio increases, the elongation of the extrusion also increases by grain refining. As the billet temperature is lower and the extrusion speed is smaller, the grain size of the extrusion becomes smaller. As the result, the elongation of the extrusion increases.