| 等径角挤压对AZ31镁合金组织及力学性能的影响 |
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| 引用本文： | 胥广亮,陈国清,周文龙,付雪松,任晓,孙中刚.等径角挤压对AZ31镁合金组织及力学性能的影响[J].材料工程,2011(2):69-72. |
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| 作者姓名： | 胥广亮 陈国清 周文龙 付雪松 任晓 孙中刚 |
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| 作者单位： | 大连理工大学,材料科学与工程学院,辽宁,大连,116024 |
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| 摘 要： | 研究了电磁连铸AZ31镁合金沿A路径经常规等径角挤压(ECAE)和两步ECAE变形后的微观组织与力学性能.结果表明:与预挤压态相比,常规ECAE态合金随着挤压道次的增加,晶粒不断细化,伸长率不断提高,但屈服强度与抗拉强度逐渐降低;两步ECAE可以使晶粒进一步细化,伸长率、屈服强度与抗拉强度均提高.伸长率、屈服强度与抗拉...
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| 关 键 词： | 电磁连铸AZ31镁合金 两步等径角挤压 A路径 微观组织 力学性能 |
Effect of Equal Channel Angular Extrusion on the Microstructure and Mechanical Properties of AZ31 Magnesium Alloy |
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| XU Guang-liang,CHEN Guo-qing,ZHOU Wen-long,FU Xue-song,REN Xiao,SUN Zhong-gang.Effect of Equal Channel Angular Extrusion on the Microstructure and Mechanical Properties of AZ31 Magnesium Alloy[J].Journal of Materials Engineering,2011(2):69-72. |
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| Authors: | XU Guang-liang CHEN Guo-qing ZHOU Wen-long FU Xue-song REN Xiao SUN Zhong-gang |
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| Affiliation: | (School of Materials Science and Engineering,Dalian University of Technology,Dalian 116024,Liaoning,China) |
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| Abstract: | The microstructure and mechanical properties of electromagnetic continuous cast AZ31 magnesium alloy processed by equal channel angular extrusion(ECAE) and two-step ECAE in route A were investigated.The results showed that the degree of grain refinement increased with the increasing pass number.The elongation was improved,but the yield strength and tensile strength decreased.On the contrary,after two-step ECAE much finer grain size was obtained.The elongation,the yield strength and tensile strength were enhanced compared with the sample of as-extruded.The change of the elongation,the yield strength and tensile strength is related to the increase of dislocation density. |
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| Keywords: | electromagnetic continuous cast AZ31 magnesium alloy two-step ECAE route A microstructure mechanical property |
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