Enhancing the elevated temperatures tribological properties of Al–Mg2Si composites by in-situ addition of Ti-based intermetallics and hot working
Dry-sliding wear and friction behaviors of Al–15Mg2Si–5TiB2–4TiAl3 in-situ hybrid composites were evaluated at different temperatures (100–300 °C) and loads (10–60 N). The addition of TiB2 and TiAl3 particles enhanced the wear resistance. Moreover, the severe wear transition condition was changed fr...
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Elsevier
2022-11-01
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Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785422015277 |
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author | M.R. Moazami A. Razaghian A. Moharami H. Mirzadeh M. Emamy |
author_facet | M.R. Moazami A. Razaghian A. Moharami H. Mirzadeh M. Emamy |
author_sort | M.R. Moazami |
collection | DOAJ |
description | Dry-sliding wear and friction behaviors of Al–15Mg2Si–5TiB2–4TiAl3 in-situ hybrid composites were evaluated at different temperatures (100–300 °C) and loads (10–60 N). The addition of TiB2 and TiAl3 particles enhanced the wear resistance. Moreover, the severe wear transition condition was changed from 300 °C to 10 N for the as-received Al–15Mg2Si composite to 300 °C - 60 N for the as-cast Al–15Mg2Si–5TiB2–4TiAl3 hybrid composite. This change was ascribed to the presence of thermostable particles and refined/modified Mg2Si particles via nucleation mechanism. Applying thermomechanical processing and hot deformation by the extrusion process necessitated higher loads and temperatures for this transition. Indeed, fragmentation and more homogeneous dispersion of reinforcements, higher hardness and toughness of composite due to grain refinement by dynamic recrystallization (DRX), reduction and closure of casting defects, and stability of tribolayer were recognized as leading reasons for replacing severe adhesive/plastic deformation wear with the abrasive mechanism. Accordingly, this study introduced an Al matrix hybrid composite with excellent performance at elevated temperatures. |
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spelling | doaj.art-76db1de7b7f84c8d9cac28b45cdcbbf42022-12-22T03:53:23ZengElsevierJournal of Materials Research and Technology2238-78542022-11-012113811394Enhancing the elevated temperatures tribological properties of Al–Mg2Si composites by in-situ addition of Ti-based intermetallics and hot workingM.R. Moazami0A. Razaghian1A. Moharami2H. Mirzadeh3M. Emamy4Department of Materials Science and Metallurgy, Imam Khomeini International University (IKIU), P.O. Box 3414896818, Qazvin, IranDepartment of Materials Science and Metallurgy, Imam Khomeini International University (IKIU), P.O. Box 3414896818, Qazvin, Iran; Corresponding author.Department of Materials Science and Metallurgy, Imam Khomeini International University (IKIU), P.O. Box 3414896818, Qazvin, Iran; Department of Research and Development (R&D), Pishroghaleb Simindasht Industrial Co. Simindasht Industrial Park, Alborz, Karaj, P.O. Box 31659438853, Iran; Corresponding author.School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, P.O. Box 11155-4563, Tehran, IranSchool of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, P.O. Box 11155-4563, Tehran, IranDry-sliding wear and friction behaviors of Al–15Mg2Si–5TiB2–4TiAl3 in-situ hybrid composites were evaluated at different temperatures (100–300 °C) and loads (10–60 N). The addition of TiB2 and TiAl3 particles enhanced the wear resistance. Moreover, the severe wear transition condition was changed from 300 °C to 10 N for the as-received Al–15Mg2Si composite to 300 °C - 60 N for the as-cast Al–15Mg2Si–5TiB2–4TiAl3 hybrid composite. This change was ascribed to the presence of thermostable particles and refined/modified Mg2Si particles via nucleation mechanism. Applying thermomechanical processing and hot deformation by the extrusion process necessitated higher loads and temperatures for this transition. Indeed, fragmentation and more homogeneous dispersion of reinforcements, higher hardness and toughness of composite due to grain refinement by dynamic recrystallization (DRX), reduction and closure of casting defects, and stability of tribolayer were recognized as leading reasons for replacing severe adhesive/plastic deformation wear with the abrasive mechanism. Accordingly, this study introduced an Al matrix hybrid composite with excellent performance at elevated temperatures.http://www.sciencedirect.com/science/article/pii/S2238785422015277Al-matrix hybrid compositeMg2SiTiB2TiAl3Wear behaviorFriction |
spellingShingle | M.R. Moazami A. Razaghian A. Moharami H. Mirzadeh M. Emamy Enhancing the elevated temperatures tribological properties of Al–Mg2Si composites by in-situ addition of Ti-based intermetallics and hot working Journal of Materials Research and Technology Al-matrix hybrid composite Mg2Si TiB2 TiAl3 Wear behavior Friction |
title | Enhancing the elevated temperatures tribological properties of Al–Mg2Si composites by in-situ addition of Ti-based intermetallics and hot working |
title_full | Enhancing the elevated temperatures tribological properties of Al–Mg2Si composites by in-situ addition of Ti-based intermetallics and hot working |
title_fullStr | Enhancing the elevated temperatures tribological properties of Al–Mg2Si composites by in-situ addition of Ti-based intermetallics and hot working |
title_full_unstemmed | Enhancing the elevated temperatures tribological properties of Al–Mg2Si composites by in-situ addition of Ti-based intermetallics and hot working |
title_short | Enhancing the elevated temperatures tribological properties of Al–Mg2Si composites by in-situ addition of Ti-based intermetallics and hot working |
title_sort | enhancing the elevated temperatures tribological properties of al mg2si composites by in situ addition of ti based intermetallics and hot working |
topic | Al-matrix hybrid composite Mg2Si TiB2 TiAl3 Wear behavior Friction |
url | http://www.sciencedirect.com/science/article/pii/S2238785422015277 |
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