Enhancing Friction Stir Welding Performance for 2017AA Alloy through Cooling with Mediterranean Seawater

IF 1.5 4区工程技术 Q3 ENGINEERING, MECHANICAL

Experimental Techniques Pub Date : 2024-09-26 DOI:10.1007/s40799-024-00751-8

M. Boukraa, T. Chekifi, T. Madani, M. Aissani, A. Settar

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引用次数: 0

Abstract

As the demand for aluminum alloys in various industries continues to grow, the development of robust welded joints has become an essential consideration. Traditional welding techniques struggle to meet the rigorous demands of modern applications. The aim of this study is to explore alternative welding methods, focusing on friction stir welding (FSW) and its underwater variant, underwater friction stir welding (UFSW), using Mediterranean seawater cooling, to join 2017AA aluminum alloy. From a methodological point of view, the study includes experimental measurements of thermal cycling and a comparative analysis of the resulting microstructures in weld joints. The unique cooling environment provided by Mediterranean seawater is a key variable in this analysis. The results reveal important information, particularly for the UFSW technique, where the introduction of Mediterranean seawater cooling leads to a substantial reduction in maximum temperatures and a decrease in plastic deformation level confirmed through fracture analysis in mechanical study. In addition, this cooling environment promotes the formation of a finer grain structure in the weld zone, exceeding the characteristics observed in conventional FSW joints. The potential benefits observed, including improved microstructure, corrosion resistance and wear resistance.

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地中海海水冷却提高2017AA合金搅拌摩擦焊接性能

随着各行业对铝合金的需求不断增长，开发坚固的焊接接头已成为一个必不可少的考虑因素。传统的焊接技术难以满足现代应用的严格要求。本研究的目的是探索替代焊接方法，重点研究搅拌摩擦焊接（FSW）及其水下变体，水下搅拌摩擦焊接（UFSW），利用地中海海水冷却，加入2017AA铝合金。从方法学的角度来看，该研究包括热循环的实验测量和焊接接头中产生的显微组织的比较分析。地中海海水提供的独特冷却环境是这一分析中的一个关键变量。该结果揭示了重要的信息，特别是对于UFSW技术，其中引入地中海海水冷却导致最高温度大幅降低，并且通过力学研究中的断裂分析证实塑性变形水平降低。此外，这种冷却环境促进焊缝区形成更细的晶粒组织，超过了传统FSW接头的特征。观察到的潜在好处包括改善微观结构、耐腐蚀性和耐磨性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Experimental Techniques 工程技术-材料科学：表征与测试

CiteScore

3.50

自引率

6.20%

发文量

审稿时长

5.2 months

期刊介绍： Experimental Techniques is a bimonthly interdisciplinary publication of the Society for Experimental Mechanics focusing on the development, application and tutorial of experimental mechanics techniques. The purpose for Experimental Techniques is to promote pedagogical, technical and practical advancements in experimental mechanics while supporting the Society''s mission and commitment to interdisciplinary application, research and development, education, and active promotion of experimental methods to: - Increase the knowledge of physical phenomena - Further the understanding of the behavior of materials, structures, and systems - Provide the necessary physical observations necessary to improve and assess new analytical and computational approaches.