TY - JOUR
T1 - Mechanical behaviour of stir cast aluminum matrix composites reinforced with silicon carbide and palm kernel shell ash
AU - Ikele, Udochukwu Samuel
AU - Alaneme, Kenneth Kanayo
AU - Oyetunji, Akinlabi
N1 - Publisher Copyright:
© 2022 American Society of Civil Engineers (ASCE). All rights reserved.
PY - 2022
Y1 - 2022
N2 - Microstructural analysis and mechanical behaviour of aluminum matrix composites (AMCs) reinforced with palm kernel shell ash (PKSA) and silicon carbide (SiC) were studied. The AMCs containing 6, 8, 10 and 12 wt.% reinforcements, with weight ratios of 0:1, 1:3, 1:1, 3:1 and 1:0 (PKSA: SiC) were produced using stir casting method. % Porosity, hardness, tensile strength (UTS), ductility and fracture toughness were determined following standard procedures, while Scanning electron microscopy (SEM-EDS) was used for structural characterization. The results show that the composites produced have improved hardness. The UTS improved with increase in PKSA attaining maximum value at reinforcement weight ratio 1:1 and then decreases, the 6 wt.% reinforcement being the only exception. The ductility of the composites was lower than the unreinforced aluminum alloy with the SiC single-reinforced having the lowest. Also Fracture toughness was observed to be less than the unreinforced aluminum alloy with the SiC single reinforced having the lowest value. The PSKA:SiC weight ratio 1:1 gave the best property combination with optimum properties in terms of UTS (175.48MPa), ductility (8.61) and fracture toughness [6.5MPa(m)1/2].
AB - Microstructural analysis and mechanical behaviour of aluminum matrix composites (AMCs) reinforced with palm kernel shell ash (PKSA) and silicon carbide (SiC) were studied. The AMCs containing 6, 8, 10 and 12 wt.% reinforcements, with weight ratios of 0:1, 1:3, 1:1, 3:1 and 1:0 (PKSA: SiC) were produced using stir casting method. % Porosity, hardness, tensile strength (UTS), ductility and fracture toughness were determined following standard procedures, while Scanning electron microscopy (SEM-EDS) was used for structural characterization. The results show that the composites produced have improved hardness. The UTS improved with increase in PKSA attaining maximum value at reinforcement weight ratio 1:1 and then decreases, the 6 wt.% reinforcement being the only exception. The ductility of the composites was lower than the unreinforced aluminum alloy with the SiC single-reinforced having the lowest. Also Fracture toughness was observed to be less than the unreinforced aluminum alloy with the SiC single reinforced having the lowest value. The PSKA:SiC weight ratio 1:1 gave the best property combination with optimum properties in terms of UTS (175.48MPa), ductility (8.61) and fracture toughness [6.5MPa(m)1/2].
KW - Aluminium matrix composites
KW - Hybrid reinforcement
KW - Mechanical properties
KW - Microstructure
KW - Palm kernel shell ash
KW - Silicon carbide
UR - http://www.scopus.com/inward/record.url?scp=85133232616&partnerID=8YFLogxK
U2 - 10.1051/mfreview/2022011
DO - 10.1051/mfreview/2022011
M3 - Article
AN - SCOPUS:85133232616
SN - 2265-4224
VL - 9
JO - Manufacturing Review
JF - Manufacturing Review
M1 - 12
ER -