The grit size effect on high stress abrasive wear depth of stir cast hybrid self-lubricating Gr/SiC/Al composites was investigated in both as cast (AC) and heat treated (T6) condition. The tests were done at grit size of 100–200 µm, sliding distance of 75 m and applied loads of 5–15 N. The results obtained were differentiated with matrix alloy and SiC/Al composites. At 15 N load, the wear depth of hybrid composites w.r.t. matrix alloy reduced around 19.6% (at 100 µm grit size) and 16.4% (at 200 µm grit size) in AC condition; 26.9% (at 100 µm grit size) and 27% (at 200 µm grit size) in T6 condition. The wear mechanism was analyzed through wear surface analysis of pin and emery paper.
SahinY. Wear behaviour of aluminium alloy and its composites reinforced by SiC particles using statistical analysis. Mater Des2003; 24: 95–103.
18.
SahinYÖzdinK. A model for the abrasive wear behaviour of aluminium based composites. Mater Des2008; 29: 728–733.
19.
YigezuBSJhaPKMahapatraMM. Effect of sliding distance, applied load and weight percentage of reinforcement on the abrasive wear properties of in situ synthesized Al–12%Si/TiC composites. Tribol Trans2013; 56: 546–554.
20.
CanakciAOzsahinSVarolT. Prediction of effect of reinforcement size and volume fraction on the abrasive wear behavior of AA2014/B4Cp MMCs using artificial neural network. Arabian J Sci Eng2014; 39: 6351–6361.
21.
RahimipourMRTofighAAMazaheryAet al.Strategic developments to improve the optimization performance with efficient optimum solution and produce high wear resistance aluminium–copper alloy matrix composites. Neural Comput Appl2014; 24: 1531–1538.
22.
KaushikNChRaoRN. Two body abrasive wear of Al–Mg–Si hybrid composites: effect of load & sliding distance. Mater Sci2016; 22: 491–494.
23.
KaushikNChRaoRN. The effect of wear parameters and heat treatment on two body abrasive wear of Al–SiC–Gr hybrid composites. Tribol Int2016; 96: 184–190.
24.
KaushikNChRaoRN. Effect of grit size on two body abrasive wear of Al 6082 hybrid composites produced by stir casting method. Tribol Int2016; 102: 52–60.
25.
KaushikNChRaoRN. Effect of load and grit size on high stress abrasive wear of Al–Mg–Si hybrid composites. . In: TMS 2016 145th Annual Meeting & Exhibition Supplemental Proceedings, 2016, pp. 119–125.
26.
KaushikNChRaoRN. Effect of applied load and grit size on wear coefficients of Al 6082–SiC–Gr hybrid composites under two body abrasion. Tribol Int2016; 103: 298–308.
27.
SureshSMoorthiNSVVettivelSCet al.Mechanical behavior and wear prediction of stir cast Al-TiB2 composites using response surface methodology. Mater Des2014; 59: 383–396.
28.
RiahiARAlpasAT. The role of tribo-layers on the sliding wear behavior of graphitic aluminum matrix composites. Wear2001; 251: 1396–1407.
29.
Ted GuoMLTsaoCYA. Tribological behaviour of self-lubricating aluminium–SiC–graphite hybrid composites synthesized by the semi-solid powder densification method. Compos Sci Technol2000; 60: 65–74.
30.
BasavarajappaSChandramohanG. Dry sliding wear behaviour of hybrid metal matrix composites. Mater Sci2005; 11: 253–257.
31.
JohnsonRW. A study of the pickup of abrasive particles during abrasion of annealed aluminium on silicon carbide abrasive. Wear1970; 16: 351–358.
32.
Larsen-BasseJ. Some effects of specimen size on abrasive wear. Wear1972; 19: 27–35.
