Table 5 Vickers hardness and wear resistance parameters of the Alloy 718 + TiB2 composites.

From: Microstructure, phase transformation temperatures and long-term stability of ex-situ Alloy 718 + TiB2 metal-ceramic nanocomposites as a repair coatings for aerospace applications

Addition of TiB2 to Alloy 718, wt%

0

1.25

2.5

3.75

5.0

Hardness, HV10

198 (± 3)

252 (± 3)

284 (± 6)

337 (± 4)

403 (± 7)

Mass loss, %

0.090

0.052

0.036

0.024

0.019

Wear rate x10− 8, mg/Nm

4.56

2.54

1.72

1.22

0.9

Rz, µm

9.72 (± 0.73)

9.09 (± 0.81)

8.96 (± 1.30)

7.73 (± 1.01)

7.33 (± 1.15)

Ra, µm

1.68 (± 0.13)

1.63 (± 0.20)

1.57 (± 0.15)

1.40 (± 0.13)

1.23 (± 0.23)

Sa, µm

1.74 (± 0.07)

1.71 (± 0.06)

1.54 (± 0.08)

1.40 (± 0.09)

1.31 (± 0.03)

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