挤压工艺对6013铝合金组织和力学性能的影响

李宏; 周楠; 王顺成; 唐建国

doi:10.15980/j.tzzz.2019.07.025

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挤压工艺对6013铝合金组织和力学性能的影响
Effects of Extrusion Process on Microstructure and Mechanical Properties of 6013 Aluminum Alloy
2019年39卷第7期页码：796-799
纸质出版日期： 2019 ，
DOI： 10.15980/j.tzzz.2019.07.025

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[1]李宏,周楠,王顺成,唐建国.挤压工艺对6013铝合金组织和力学性能的影响[J].特种铸造及有色合金,2019,39(07):796-799.

Li Hong, Zhou Nan, Wang Shuncheng, et al. Effects of Extrusion Process on Microstructure and Mechanical Properties of 6013 Aluminum Alloy[J]. Special Casting & Nonferrous Alloys, 2019,39(7):796-799.
[1]李宏,周楠,王顺成,唐建国.挤压工艺对6013铝合金组织和力学性能的影响[J].特种铸造及有色合金,2019,39(07):796-799. DOI： 10.15980/j.tzzz.2019.07.025.

Li Hong, Zhou Nan, Wang Shuncheng, et al. Effects of Extrusion Process on Microstructure and Mechanical Properties of 6013 Aluminum Alloy[J]. Special Casting & Nonferrous Alloys, 2019,39(7):796-799. DOI： 10.15980/j.tzzz.2019.07.025.

摘要

以半连续铸造、挤压获得的6013铝合金为研究对象

通过金相显微镜、扫描电镜、室温拉伸以及硬度等组织性能检测手段

对比研究不同挤压温度和挤压速度对6013铝合金组织与性能的影响。结果表明

挤压温度和挤压速度对6013铝合金的组织和力学性能均有显著影响

挤压温度越高、挤压速度越快

越有利于获得再结晶组织。在速度较低时

抗拉强度在500℃时获得最大值;在不同的速度下

6013铝合金的伸长率以及硬度均随着温度的升高而降低。断口分析表明

断口韧窝尺寸较大、较深

且伴有大量撕裂棱

说明合金具有较好的塑性。

Abstract

6013 aluminium alloy sheets obtained by semi-continuous casting and extrusion were investigated

focusing on the effects of extrusion temperature and speed on the structure and properties

by optical microscopy

scanning electron microscopy

tensile and hardness testing.The results reveal that both extrusion temperature and extrusion speed have significant effects on the microstructure and mechanical properties of the 6013 aluminum alloy.Recrystallized structure is trend to be generated at higher extrusion temperature or speed.At a lower extrusion speed

the tensile strength of the alloy reaches its maximum at 500℃.The elongation and hardness of the alloy are decreased with the increase in temperature at various extrusion speed.Moreover

fractographic analysis reveals that the alloy with large and deep dimples accompanied with tearing edges observed in the fractography presents the higher plasticity.