Friction stir welding of thick 7175 aluminium alloy plates for deepwater riser applications

IF 2.9 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Science and Technology of Welding and Joining Pub Date : 2023-06-01 DOI:10.1080/13621718.2023.2219908

Tianhao Wang, Md. Reza-E-Rabby, H. Das, G. Grant, S. Whalen

{"title":"Friction stir welding of thick 7175 aluminium alloy plates for deepwater riser applications","authors":"Tianhao Wang, Md. Reza-E-Rabby, H. Das, G. Grant, S. Whalen","doi":"10.1080/13621718.2023.2219908","DOIUrl":null,"url":null,"abstract":"To substantially reduce the cost of extracting petroleum from ultra-deepwater sources, manufacturing risers from 7175 aluminium (Al) alloys rather than steels is being considered. Friction stir welding (FSW), a solid-phase joining technique, is widely applied to 7XXX Al alloys because its mechanical properties are retained within the nugget zone. And, the primary technical objective of the current study is the development of high-strength, corrosion-resistant weldments that connect 7175 Al riser flanges and pipes. However, as the welding thickness increases, the welding speed can be greatly impeded, which lowers the manufacturing efficiency and weakens the mechanical properties in the heat affected zone (next to the nugget). Therefore, obtaining high-performance thick plate 7175 Al alloy joints via FSW is challenging. To overcome this dilemma, the current work optimises the tool design and welding parameters for achieving high-performance joints between 25.4 mm thick 7175 Al alloy plates in butt joint configuration.","PeriodicalId":21729,"journal":{"name":"Science and Technology of Welding and Joining","volume":"28 1","pages":"747 - 756"},"PeriodicalIF":2.9000,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Science and Technology of Welding and Joining","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1080/13621718.2023.2219908","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

Abstract

To substantially reduce the cost of extracting petroleum from ultra-deepwater sources, manufacturing risers from 7175 aluminium (Al) alloys rather than steels is being considered. Friction stir welding (FSW), a solid-phase joining technique, is widely applied to 7XXX Al alloys because its mechanical properties are retained within the nugget zone. And, the primary technical objective of the current study is the development of high-strength, corrosion-resistant weldments that connect 7175 Al riser flanges and pipes. However, as the welding thickness increases, the welding speed can be greatly impeded, which lowers the manufacturing efficiency and weakens the mechanical properties in the heat affected zone (next to the nugget). Therefore, obtaining high-performance thick plate 7175 Al alloy joints via FSW is challenging. To overcome this dilemma, the current work optimises the tool design and welding parameters for achieving high-performance joints between 25.4 mm thick 7175 Al alloy plates in butt joint configuration.

查看原文本刊更多论文

深水立管应用7175厚铝合金板的搅拌摩擦焊接

为了大幅降低从超深水来源开采石油的成本，正在考虑用7175铝合金而不是钢制造立管。搅拌摩擦焊（FSW）是一种固相连接技术，由于其机械性能保留在熔核区内，因此被广泛应用于7XXX铝合金。目前研究的主要技术目标是开发连接7175 Al立管法兰和管道的高强度、耐腐蚀焊件。然而，随着焊接厚度的增加，焊接速度可能会受到极大阻碍，这会降低制造效率并削弱热影响区（靠近熔核）的机械性能。因此，通过FSW获得高性能厚板7175铝合金接头具有挑战性。为了克服这一困境，目前的工作优化了工具设计和焊接参数，以实现25.4之间的高性能接头 mm厚7175铝合金板，对接配置。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Science and Technology of Welding and Joining 工程技术-材料科学：综合

CiteScore

6.10

自引率

12.10%

发文量

审稿时长

1.7 months

期刊介绍： Science and Technology of Welding and Joining is an international peer-reviewed journal covering both the basic science and applied technology of welding and joining. Its comprehensive scope encompasses all welding and joining techniques (brazing, soldering, mechanical joining, etc.) and aspects such as characterisation of heat sources, mathematical modelling of transport phenomena, weld pool solidification, phase transformations in weldments, microstructure-property relationships, welding processes, weld sensing, control and automation, neural network applications, and joining of advanced materials, including plastics and composites.