Figure 1: High Pressure Die casting Setup

Figure 2: Hardness Testing Specimen

Figure 3: Wear Testing Specimen

Figure 4: Stress v/s % of Elongation (0% Al2O3)

Figure 5: Stress v/s % of Elongation (4% Al2O3)

Figure 6: Stress v/s % of Elongation (8% Al2O3)

Figure 7: Stress v/s % of Elongation (12% Al2O3)

Figure 8: Stress v/s % of Elongation (16% Al2O3)

Figure 9: Variation of Yield strength for Al6061 with percentage of Al2O3

Figure 10: Variation of Ultimate Tensile strength for Al6061 with percentage of Al2O3

Figure 11: Variation of Percentage of Elongation for Al6061 with percentage of Al2O3

Figure 12: AL6061- Al2O3 -0%

Figure 13: AL6061- Al2O3 -4%

Figure 14: AL6061- Al2O3 -8%

Figure 15: AL6061- Al2O3 -12%

Figure 16: AL6061- Al2O3 -16%

Figure 17: Variation of Co-efficient of friction with percentage of reinforcement for different loads

Figure 18: Variation of Wear rate with percentage of reinforcement for different loads.

Figure 19: Al6061- Al2O3 -0%

Figure 20: Al6061- Al2O3 -4%

Figure 21: Al6061- Al2O3 -8%

Figure 22: Al6061- Al2O3 -12%

Figure 23: Al6061- Al2O3 -16%

Material

Mg

Si

Fe

Cu

Cr

Mn

Zn

Ti

Al

%

0.9

0.62

0.33

0.28

0.17

0.06

0.02

0.02

Balance

Table 1:Chemical composition of 6061

Property

Values

Yield strength(MPa)

110

Ultimate strength (MPa)

207

Elongation (%)

16

Hardness (BHN)

75

Table 2:Mechanical Properties of Al6061

Property

Values

Density

2.7 g/cm3

Melting Point

580 °C

Modulus of Elasticity

70-80 GPa

Poissons Ratio

0.33

Table 3:Mechanical Properties of Al6061

Property

Values

Density (g/cm3)

3.89

Porosity (%)

0

Elastic Modulus (GPa)

375

Shear Modulus (GPa)

52

Bulk Modulus (GPa)

228

Poisson’s ratio

0.22

Fracture Toughness(MPa)

4

Hardness

1440

Compressive strength(MPa)

2600

Table 4:Properties of alumina

Reinforcement (%)

Yield strength (N/mm2)

Ultimate tensile strength (N/mm2)

% of Elongation

0

122

132

14.8

4

148

170

12

8

172

194

9.8

12

186

210

7.8

16

170

192

10

Table 5:Tensile Test Results of 6061 Aluminum alloy metal matrix reinforced with alumina

Reinforcement (%)

BHN

0

72

4

80

8

84

12

92

16

90

Table 6:Brinell Test Results of 6061 Aluminum alloy metal matrix reinforced with alumina

Reinforcement (%)

Load

Wear in Micron

Co-Efficient

(Kg)

0

3

165

0.4856

4

168

0.4901

5

177

0.4989

4

3

142

0.411

4

146

0.4256

5

158

0.4386

8

3

122

0.3611

4

127

0.3762

5

134

0.3825

12

3

110

0.351

4

116

0.3672

5

122

0.3753

16

3

115

0.3585

4

120

0.3698

5

126

0.3794

Table 7:Wear Test Results of 6061 Aluminum alloy metal matrix reinforced with alumina