Effects of Fe2O3 nanoparticle on quality of medium-density polyethylene friction stir weld joint

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Abstract

This study presents a comprehensive investigation into the effects of incorporating Fe₂O₃ nanoparticles in medium-density polyethylene (MDPE) during friction stir welding (FSW). It systematically explores the metallurgical and mechanical characteristics through quantitative analyses. FSW with Fe₂O₃ nanoparticles (n-FSW) mitigates thermo-mechanical changes in the upper joint area, enhancing the overall structural and mechanical properties of the welded joint. Examination of the stir zone indicates a slightly larger area in n-FSW, highlighting the influence of nanoparticle reinforcement. The ultimate tensile strength (UTS) of the n-FSW sample improved to 27 MPa, which is 34% higher than the 21 MPa of the FSW sample. Additionally, the formation of microscale voids in the stir zone of n-FSW was reduced by 60% compared to the FSW sample. The impact energy of the n-FSW sample was 4 J/cm2 more than that of the FSW sample. Fracture surface analysis reveals nanoparticle contributions to fracture mechanics, while impact properties suggest potential air bubble entrapment.
Original languageEnglish
JournalArchives of civil and mechanical engineering
Volume24
Issue number4
DOIs
Publication statusPublished - 2024

Keywords

  • 2025 OA procedure

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