Influence of extrusion processing variables on the microstructure and mechanical properties of aluminum-lithium alloy extrusions

机译：挤出处理变量对铝 - 锂合金挤出组织和力学性能的影响

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Extrusion temperature, strain rate, extrusion ration, billet temperature, and extrusion geometry were varied, and correlated with the microstructure of the alloy, and the heat treating times and temperatures. The extrusion processing variables were related to the microstructure through the Zener-Hollomon parameter i.e., the temperature compensated strain rate. Based on optical and transmission electron microscopy studies it was found that regardless of the extrusion conditions, the various microstructures were for the most part were unrecrystallized for both the as extruded and the solution heat treated conditions. Smaller grain sizes were correlated to smaller Zenor-Hollomon parameters. The extrusion temperature and ratio did not significantly effect the strength or elongation. the section geometry did effect these mechanical properties.

机译：挤出温度，应变速率，挤出配积，坯料温度和挤出几何形状变化，与合金的微观结构相关，热处理时间和温度相关。挤出处理变量与通过ZENER-HOLLOMON参数的微观结构有关，即温度补偿应变率。基于光学和透射电子显微镜研究，发现无论挤出条件如何，对于挤出和溶液热处理条件，各种微观结构大部分是未结晶的。较小的晶粒尺寸与较小的Zenor-Hollomon参数相关。挤出温度和比例没有显着影响强度或伸长率。几何形状确实影响了这些机械性能。

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《International conference on advanced manufacturing systems and technology》|1999年||共8页
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J. Fragomeni; International Centre for Mechanical Sciences;
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中图分类机械制造工艺;
关键词
Extrusion; Aluminum; Microstructure; Zener-Hollomon;

机译：挤出;铝;微观结构;ZENER-HOLLOMON;

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6. Influence of extrusion processing variables on the microstructure and mechanical properties of aluminum-lithium alloy extrusions [C] . J. Fragomeni, International Centre for Mechanical Sciences International conference on advanced manufacturing systems and technology . 1999

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Influence of extrusion processing variables on the microstructure and mechanical properties of aluminum-lithium alloy extrusions

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