Influence of oxide film on the performance of 6005A-T6 aluminum alloy BT-FSW joints

CHEN Xiaoxia; LI Chong; WU Hao; FAN Dongyu; MA Yongzhi

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Influence of oxide film on the performance of 6005A-T6 aluminum alloy BT-FSW joints
Vol. 48, Issue 3, Pages: 267-270(2018)
DOI：

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CHEN Xiaoxia, LI Chong, WU Hao, et al. Influence of oxide film on the performance of 6005A-T6 aluminum alloy BT-FSW joints. [J]. 48(3):267-270(2018)
DOI：

CHEN Xiaoxia, LI Chong, WU Hao, et al. Influence of oxide film on the performance of 6005A-T6 aluminum alloy BT-FSW joints. [J]. 48(3):267-270(2018) DOI：

摘要

通过拉伸试验、弯曲试验和金相组织分析,研究氧化膜对6005A-T6铝合金双轴肩搅拌摩擦焊接头性能的影响。在不进行表面氧化膜处理的情况下,接头中会产生"C"形S线,接头抗拉强度184.3 MPa,为母材强度的72.2%,弯曲不合格;在进行表面氧化膜处理的情况下,接头中不存在明显的S线,接头分为焊核区(WNZ)、热机影响区(TMAZ)、热影响区(HAZ)和母材(BM),接头抗拉强度219.3 MPa,为母材强度的86%,弯曲合格。

Abstract

This paper studies the influence of oxide film on the performance of 6005 A-T6 aluminum alloy BT-FSW joints through the analysis of tensile test,bending test and microstructure. Without removing off oxidation film,the joint produces the C-shaped S line.The tensile strength of the joint is 184.3 MPa,72.2% of the strength of the parent material. The bending of the joint is not qualified.With removing off oxidation film, the joint does not show an obvious S line. The joint is divided into WNZ,TMAZ,HAZ and BM. The tensile strength of the joint is 219.3 MPa,86% of the strength of the parent material. The bending of the joint is qualified.