Microstructure and Properties of ER4043Aluminum Alloy Welding Wire by Casting-Extrusion

Ye Yulong1; Liu Erlin2; Liu Hongwei 3; Yang Zhao1

doi:10.15980/j.tzzz.2013.02.015

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Microstructure and Properties of ER4043Aluminum Alloy Welding Wire by Casting-Extrusion
Vol. 33, Issue 2, Pages: 174-177(2013)
Published： 2013 ，
DOI： 10.15980/j.tzzz.2013.02.015

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[1]叶於龙,刘二林,刘红伟,杨昭.铸造-挤压法制备ER4043铝合金焊丝及其组织性能[J].特种铸造及有色合金,2013,33(02):174-177.

Ye Yulong1, Liu Erlin2, Liu Hongwei 3, et al. Microstructure and Properties of ER4043Aluminum Alloy Welding Wire by Casting-Extrusion. [J]. Special Casting & Nonferrous Alloys 33(2):174-177(2013)
[1]叶於龙,刘二林,刘红伟,杨昭.铸造-挤压法制备ER4043铝合金焊丝及其组织性能[J].特种铸造及有色合金,2013,33(02):174-177. DOI： 10.15980/j.tzzz.2013.02.015.

Ye Yulong1, Liu Erlin2, Liu Hongwei 3, et al. Microstructure and Properties of ER4043Aluminum Alloy Welding Wire by Casting-Extrusion. [J]. Special Casting & Nonferrous Alloys 33(2):174-177(2013) DOI： 10.15980/j.tzzz.2013.02.015.

摘要

采用铸造-挤压-拉拔法制备出了ER4043铝合金焊丝

并以5052铝合金板材作为母材

用制得的ER4043焊丝进行了TIG焊接试验。采用OM、TEM、EDS、拉伸试验、硬度测试等方法

分析了制得合金的室温力学性能和微观组织

研究了焊缝的组织结构和力学性能。结果表明

均匀化后拉拔得到的线坯组织均匀

力学性能稳定

塑性优良;母材与热影响区的交界处是焊接接头的薄弱区;HAZ区内

来自母材的焊接气孔是形成易断裂区的主要原因。

Abstract

ER4043aluminum alloy welding wires were prepared by the casting-extrusion-drawing process.The ER4043welding wires prepared were used as filler to weld 5052aluminum plates by TIG.Microstructures and mechanical properties of the alloy and welded joint were investigated by OM（optical microscope）

EDS（energy dispersive spectrometer）

TEM（transmission electron microscope）

tension tests and hardness tests at room temperature.The results show that the wires drew with ingots by the homogenized at 475℃for 24hat 450℃exhibit uniform structure and desirable mechanical properties.The interface of the matrix and heat affected zone（HAZ）is the weakest zone.The formation of easy crack zone in the HAZ is attributed to the welding gas hole from the matrix..