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

Table 1

Alloying composition in wt.% (Fe makes up the balance), initial hardness, and surface roughness of investigated sheet and tool steel materials (values in parenthesis are for Al-Si coated 22MnB5).

Material

C

Si

Mn

P

S

Cr

Mo

V

Ni

B

(m)

Comments

22MnB5

0.20 – 0.25

0.20 –   0.35

1.0 –   1.3

max.; 0.03

max.; 0.01

0.14 – 0.26

–

–

–

0.005

201   3

1.16 (0.90)   0.16 (0.18)

as delivered

Tool steel

0.32

0.6 – 1.1

0.8

max.; 0.01

max.  0.003

1.35

0.8

0.14

max.; 1

–

458 6

0.13 0.01

prior to coating