High Temperature Friction and Wear Performance of PVD Coatings under Press Hardening Contact Conditions

Figure 11

Scanning electron micrographs in secondary electron mode of longitudinal sections of (a) CrWN coated tool close to the entrance to the contact, (b) AlCrN 2 coated tool in the front half of the contact, (c) TiAlN coated tool in the rear half of the contact and (d) AlCrN 1 coated tool close to the exit of the contact after tribological tests; arrows indicate the sliding direction.

(a)

(b)

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(d)