Slurry erosive wear and microhardness characteristics with coarse silica sand of dual reinforced particles ADC12 alloy composites

Figures & data

Table 1. Chemical compositions of ADC12 aluminum alloy.

Elements	Cu	Mg	Mn	Ni	Fe	Si	Zn	Ti	Other each	Balance
wt%	1.5–	Max	Max	Max	Max	9.6–	Max	Max	Max	Al
	3.5	0.3	0.5	0.5	0.9	12.0	0.2	0.15	0.15

Table 2. Combination of reinforcements (numerous composites).

	Total 15 wt% reinforcements
Composites (symbol)	Silicon carbide (SiC)	Zirconium silicate (ZrSiO4)
A	10.0	5.0
B	7.50	7.50
C	5.0	10.0

Table 3. Deviation of microhardness (Hv) and density of composites.

Composites (symbol)	Particle (Hv)	Interface (Hv)	Matrix (Hv)	Density (symbol) (g/cm^3)
A	253.03	135.38	88.09	2.717
B	181.10	120.81	67.73	2.726
C	197.43	129.91	70.38	2.752

Figure 1. The mass loss of composites, (a) composite A, (b) composite B, (c) composite C at one-hour rotation in slurry (25%, 50% and 75% by weight) at 500, 1000 and 1500 rpm., respectively.

Figure 2. SEM micrograph of the wear surface of composite A, (a) 500 rpm, (b) 1000 rpm, (c) 1500 rpm and slurry concentrations at different magnifications.

Figure 3. SEM micrograph of the eroded surface of composite B, (a) 500 rpm, (b) 1000 rpm, (c) 1500 rpm and slurry concentrations at different magnifications.

Figure 4. SEM micrograph of the wear surface of composite C, (a) 500 rpm, (b) 1000 rpm, (c) 1500 rpm and slurry concentrations at different magnifications.