| AZ80镁合金管材热挤压工艺及组织性能研究 |
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| 引用本文： | 赵根发,王忠堂,刘劲松,邓永刚,梁海成,冯立军.AZ80镁合金管材热挤压工艺及组织性能研究[J].沈阳理工大学学报,2010,29(6):55-58. |
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| 作者姓名： | 赵根发 王忠堂 刘劲松 邓永刚 梁海成 冯立军 |
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| 作者单位： | [1]沈阳理工大学材料科学与工程学院,辽宁沈阳110159 [2]齐齐哈尔华安特种容器有限公司技术部,黑龙江齐齐哈尔161046 |
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| 摘 要： | 选用不同的工艺参数对变形镁合金AZ80进行管材热挤压工艺实验研究;对挤压前后材料组织与力学性能的变化进行分析。研究结果表明：热挤压可以显著细化AZ80镁合金的晶粒,而且随着挤压比的增加,晶粒变得更加细小;增大挤压比也可以提高AZ80镁合金的抗拉强度和屈服强度。挤压比为18.2,坯料温度为390℃,模具预热温度360℃,凹模的半模角为60°～70°,可得到均匀的合金组织和良好的力学性能.
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| 关 键 词： | 热挤压 AZ80镁合金 组织与力学性能 管材 |
Analysis of Microstructures and Mechanical Properties of Hot Extruded AZ80 Magnesium Alloy |
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| ZHAO Gen-fa,WANG Zhong-tang,LIU Jin-song,DENG Yong-gang,LIANG Hai-cheng,FENG Li-jun.Analysis of Microstructures and Mechanical Properties of Hot Extruded AZ80 Magnesium Alloy[J].Transactions of Shenyang Ligong University,2010,29(6):55-58. |
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| Authors: | ZHAO Gen-fa WANG Zhong-tang LIU Jin-song DENG Yong-gang LIANG Hai-cheng FENG Li-jun |
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| Affiliation: | 1.Shenyang Ligong University,Shenyang 110159,China;2.Technology Section,Qiqihar Huaan Co.,Ltd,Qiqihar 161046,China) |
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| Abstract: | AZ80 magnesium alloy was hot extruded under the different technological parameters.The microstructure and mechanical properties of the alloy before and after hot extrusion were investigated.The results reveal that the microstructure of the AZ80 alloy is effectively refined after hot-extrusion.The grains become finer with increasing extrusion ratio.The tensile strength of the extruded AZ80 alloy gets obviously enhanced with an increase in extrusion ratio.The tubes with better microstructure and mechanical properties can be obstained by controling the temperature of billet and mold preheating at 390℃ and 360℃,Half die angle 60°～70°,extrusion ratio 18.2. |
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| Keywords: | hot extrusion AZ80 magnesium microstructures and mechanical properties tube |
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