<abstract xmlns="http://www.w3.org/1999/xhtml"> Friction Stir Welding (FSW) of an Al-13%Si alloy matrix reinforced with 0, 3 and 6 wt% Al2O3 nanoparticles (nAl2O3) is performed and the optical microstructures, tensile strength, hardness and sliding wear properties of friction stir welded joints are investigated and compared to those of base materials. Four different zones of distinct appearances were observed during FSW, which exhibited altered microstructures in the nugget zone (NZ), thermo mechanically affected zone (TMAZ), heat affected zone (HAZ), and base material zone (BMZ). The ultimate tensile strength of the base materials and their welded joints were found to be increasing with increased wt% of nano-alumina reinforcements. High joint efficiency of 89-97% was achieved in FSW. Hardness and wear resistance of friction stir welded joints were found to be better than those of the base materials.</abstract>

Friction Stir Welding (FSW) of an Al-13%Si alloy matrix reinforced with 0, 3 and 6 wt% Al2O3 nanoparticles (nAl2O3) is performed and the optical microstructures, tensile strength, hardness and sliding wear properties of friction stir welded joints are investigated and compared to those of base materials. Four different zones of distinct appearances were observed during FSW, which exhibited altered microstructures in the nugget zone (NZ), thermo mechanically affected zone (TMAZ), heat affected zone (HAZ), and base material zone (BMZ). The ultimate tensile strength of the base materials and their welded joints were found to be increasing with increased wt% of nano-alumina reinforcements. High joint efficiency of 89-97% was achieved in FSW. Hardness and wear resistance of friction stir welded joints were found to be better than those of the base materials.

Mechanical and Wear Properties of Friction Stir Welded 0–6Wt% nAl2O3 Reinforced Al-13Wt%Si Composites

Govind Ballabh Pant Engineering College Ghurdauri, Department of Mechanical Engineering, Pauri Garhwal 246001, Uttarakhand,

Strojnícky časopis - Journal of Mechanical Engineering

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Mechanical and Wear Properties of Friction Stir Welded 0–6Wt% nAlO Reinforced Al-13Wt%Si Composites

Friction Stir Welding (FSW) of an Al-13%Si alloy matrix reinforced with 0, 3 and 6 wt% Al2O3 nanoparticles (nAl2O3) is performed and the optical...

Mechanical and Wear Properties of Friction Stir Welded 0–6Wt% nAl₂O₃ Reinforced Al-13Wt%Si Composites

Published Online: May 03, 2017

Page range: 77 - 86

DOI: https://doi.org/10.1515/scjme-2017-0008

Keywords
Friction stir welding, Metal matrix composite, Mechanical properties, Al-Si alloy, Alumina, Wear

© 2017

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Mechanical and Wear Properties of Friction Stir Welded 0–6Wt% nAl2O3 Reinforced Al-13Wt%Si Composites

Published Online: May 03, 2017

Page range: 77 - 86

DOI: https://doi.org/10.1515/scjme-2017-0008

KeywordsFriction stir welding, Metal matrix composite, Mechanical properties, Al-Si alloy, Alumina, Wear

© 2017

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Mechanical and Wear Properties of Friction Stir Welded 0–6Wt% nAl₂O₃ Reinforced Al-13Wt%Si Composites

Keywords
Friction stir welding, Metal matrix composite, Mechanical properties, Al-Si alloy, Alumina, Wear