Issue 62

G.B. Veeresh Kumar et alii, Frattura ed Integrità Strutturale, 62 (2022) 134-149; DOI: 10.3221/IGF-ESIS.62.10

Grooves

Ploughing

a. SEM Image of worn-out Al6061 alloy.

b. SEM of worn-out Al6061-3wt% SiC.

Plastic

Delamination

c. SEM of worn-out Al6061-6wt% SiC. d. SEM of worn-out Al6061-9wt% SiC. Figure 10: a-d. SEM photographs of worn-out Al6061 alloy and alloy with SiC and Gr additions

Applied Load, N

Sliding Speed, rpm

Sliding distance, m

Specific Wear rate mm 3 /Nm

S/N Ratio

Sl.No

Composition

44.6717 64.1802 63.7150 62.4411 71.6672 70.7820 66.2138 67.2502 72.5418 70.9031 73.1515 71.0879 72.2879 73.8074 74.1993 73.1911

1 2 3 4 5 6 7 8 9

10 10 10 10 20 20 20 20 30 30 30 30 40 40 40 40

100 200 300 400 100 200 300 400 100 200 300 400 100 200 300 400

500

Al6061

0.00584 0.000618 0.000652 0.000755 0.000261 0.000289 0.000489 0.000434 0.000236 0.000285 0.000221 0.000279 0.000243 0.000204 0.000195 0.000219

1000 1500 2000 1000 1500 2000 1000 1500 2000 1000 1500 2000 500 500 500

Al6061+3%SiC+1%Gr Al6061+6%SiC+1%Gr Al6061+9%SiC+1%Gr Al6061+6%SiC+1%Gr Al6061+9%SiC+1%Gr Al6061+3%SiC+1%Gr Al6061+9%SiC+1%Gr Al6061+6%SiC+1%Gr Al6061+3%SiC+1%Gr Al6061

10 11 12 13 14 15 16

Al6061

Al6061+3%SiC+1%Gr

Al6061

Al6061+9%SiC+1%Gr Al6061+6%SiC+1%Gr

Table 4: Wear rate for different testing conditions.

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