Effects of Composition Control on Extrusion Performance of 6063 Aluminum

Zhong Yu1; Xiong Ji1; Yang Qiping2; Wang Jun1; Wang Yanfen1; Xiong Sujian1

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Effects of Composition Control on Extrusion Performance of 6063 Aluminum
Vol. 29, Issue 4, Pages: 366-368(2009)
Published： 2009 ，
DOI：

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[1]钟宇,熊计,杨启平,王均,王艳芬,熊素建.成分控制对6063合金挤压性能的影响[J].特种铸造及有色合金,2009,29(04):366-368+292.

Zhong Yu1, Xiong Ji1, Yang Qiping2, et al. Effects of Composition Control on Extrusion Performance of 6063 Aluminum. [J]. Special Casting & Nonferrous Alloys 29(4):366-368(2009)
[1]钟宇,熊计,杨启平,王均,王艳芬,熊素建.成分控制对6063合金挤压性能的影响[J].特种铸造及有色合金,2009,29(04):366-368+292. DOI：

Zhong Yu1, Xiong Ji1, Yang Qiping2, et al. Effects of Composition Control on Extrusion Performance of 6063 Aluminum. [J]. Special Casting & Nonferrous Alloys 29(4):366-368(2009) DOI：

摘要

对6063合金的主要合金元素的含量进行控制并添加稀土元素

可以减少粗大第二相的析出。挤压试验表明

经过成分控制和优化

合金的挤压速度能提高55%。通过金相和能谱分析

发现稀土可以细化晶粒且生成细小的强化相。稀土的加入还可以减小合金中高铁含量对性能的不利影响。6063D-RE合金的力学性能优异

抗拉强度的平均值为211MPa

屈服强度的平均值为189MPa

伸长率的平均值为9.0%。

Abstract

Precipitation of coarse secondary phase in 6063 aluminum alloy can be reduced by controlling content of main element and adding rare earth element. Extrusion experiment shows that extrusion speed can be improved by 55% based on control and optimization of composition in the alloy. The grain size in the microstructure of 6063 aluminum alloy can be refined as a result of creation of fine RE reinforcing phase through OM （optical microscope） and energy spectrum analysis

and Fe content detrimental to mechanical properties of the alloy can be decreased with RE addition. Tensile strength

elongation

tensile stress of the 6063D alloy containing Re element are 211MPa

9.0% and 189MPa

respectively

exhibiting desirable mechanical properties.