Experimental Investigations on Microstructural and Dry Sliding Wear Behavior of Al-AlB2 Metal Matrix Composites

Dry sliding wear response of aluminium matrix composites (AMCs): a critical review

“…The findings also supported the idea that metal matrix composite reinforcements improve wear resistance at lower loads. Al-AlB 2 composites showed higher wear with applied load in a study performed by Dayanand et al [120]. They also noted that unreinforced alloy had higher volumetric wear loss.…”

Effect of Cryolite on Microstructure of Insitu AlB2 Aluminium Metal Matrix Composites

“…The premixed salt is fed into the molten aluminum either in the form of powder or tablet form was performed gradually, to avoid melt due to excessive cooling retain the temperature above 800 o C in the addition process. To monitor the progress of KBF 4 -Al reaction melt temperatures has to be recorded and melt temperature is maintained at 800 o C upto 60 minutes [42][43]. After 60 minutes reaction time and a temperature of 800ºC, the slag was skimmed off before half of the melt and the remaining half was stirred manually with a preheated graphite rod.…”

“…Reactions occurring during the process of interaction between aluminum and potassium fluoroborate are [45] 12KBF 4 +13Al = AlB 12 +12KAlF 4 (1) = AlB 12 +12KF + 12AlF 3 (1) 3.1 (a)-(f) represents the micrograph of with and without cryolite using the formation of Al-AlB 2 insitu MMC's. Introducing of halide salt KBF 4 into the liquid molten alumnium has resulted in exothermic chemical reaction for developing AlB 2 insitu particle as clearly visible in SEM micrographs in Fig.…”

“…In today's trend aluminum matrix composites were gaining more importance because of its high strength to weight ratio and excellent performance inorder to fulfill the needs and demands in the aviation and automobile industries. Various manufacturing techniques were adopted in AMC's with the various reinforcements [1][2][3][4] such as Al 2 O 3 , B 4 C, TiC, graphite, TiB 2 , fly ash, AlB 2 , and ZrB 2 for manufacturing of variety of components like brake drums, cylinder liners, connecting rods, bearings, gears, drum and rotors for the above industries [5][6][7][8][9][10].…”

<i>In Situ</i> Synthesis of Titanium Carbide in Pure Aluminium

“…The other reasons to consider TiC are due to its high temperature stability, high hardness, low weight and low chemical reactivity [5]. Among the several me-Journal of Materials Science and Chemical Engineering thods of preparing TiC reinforced composite, like liquid-solid reactions, liquid-liquid reactions, reaction gas injection, exothermic dispersion and self propagating high-temperature synthesis, the in situ method of preparing the composite is becoming popular due to homogeneous distribution of reinforcement throughout the matrix [6]. TiC reinforced-aluminium composites were also produced by adding elemental carbon to Al-Ti molten alloy, while observing that a temperature of 1200˚C was responsible for the formation of Al 3 Ti particles along with TiC.…”