Friction stir welding of pipes: Effect of traverse speed, offset and shoulder profile

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Letters Pub Date : 2025-02-28 DOI:10.1016/j.matlet.2025.138320

Atishey Mittal , Vikas Kumar , Surjit Angra , Arshad Noor Siddiquee

引用次数: 0

Abstract

Friction Stir Welding (FSW) of AA6063 pipes was performed by varying: shoulder profile, tool offset and traverse speed. Microstructure and microhardness were analysed. Nearly 100 % joint efficiency was obtained. The profile of bead of FSWed pipe and microhardness was found to be different from FSW plate welds. Unlike plate-welds the surface of pipe joints possessed convex shaped crown. Maximum hardness exceeded base material (BM) hardness and pipe-welds possessed inverted cup-shape profile. Traverse speed 162 mm/min, convex shoulder and 0.25 mm offset gave optimum results and maximum ultimate strength (UTS) of 138 MPa. Grain size of BM was significantly refined from 140 to 9 µm in the stir-zone but coarsened to 160 µm in the heat affected zone.

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive