Effect of the static shoulder on microstructural, textural, and mechanical characteristics during friction stir welding of Al6061

A Saravana Sundar; Kumar Adepu; Krishna Kishore MugadaMVNV Satyanarayana

首页> 外文期刊>Proceedings of the Institution of Mechanical Engineers, Part L. Journal of Materials: Design and Application >Effect of the static shoulder on microstructural, textural, and mechanical characteristics during friction stir welding of Al6061

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Effect of the static shoulder on microstructural, textural, and mechanical characteristics during friction stir welding of Al6061

机译：Effect of the static shoulder on microstructural, textural, and mechanical characteristics during friction stir welding of Al6061

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In the present investigation, a novel static shoulder friction stir welding (SSFSW) tool has been designed and fabricated. The designed tool works both as rotating shoulder FSW (RS-FSW) and SSFSW. To evaluate the effectiveness of the developed tool, AI6061 plates have been subjected to both RS-FSW and SSFSW using the indigenously developed tool. The microstructure evolution, axial force, texture development, and mechanical properties were evaluated and compared for both RS-FSW and SSFSW. Adequate heat generation in SSFSW resulted in a homogeneous structure at the stir zone. Electron back scattered diffraction analysis demonstrated the presence of red-colored regions along the grain boundaries indicative of more dislocation density. These regions acted as preferable sites for precipitate (Mg_2Si) accumulation, which greatly affected the mechanical properties of the joint SSFSW joints contained a strong {111} texture of R-cube and S component with a maximum intensity of 6.85, while RS-FSW joints contained A and A* components with a maximum intensity of 4.85. The hardness plots showed a wide lower hardness region in RS-FSW with a maximum hardness of 101HV and 110HV (SSFSW). During the tensile test, both the joints failed in the lower hardness region after achieving 88 (SSFSW) and 75 (RS-FSW) strength of base material.

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《Proceedings of the Institution of Mechanical Engineers, Part L. Journal of Materials: Design and Application》 |2023年第1期|144-154|共11页
作者
A Saravana Sundar; Kumar Adepu; Krishna Kishore MugadaMVNV Satyanarayana;
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作者单位

Department of Mechanical Engineering, National Institute of Technology, Warangal, India;

Department of Mechanical Engineering, Sardar Vallabhbhai National Institute of Technology, Surat, India;

Department of Mechanical Engineering, NBKR Institute of Science and Technology, Nellore, Andhra Pradesh, India;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
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Static shoulder friction stir welding; texture analysis; microstructure; axial force; mechanical properties;

Effect of the static shoulder on microstructural, textural, and mechanical characteristics during friction stir welding of Al6061

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