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1.5528 | 22 MnB5 AlSi-coated (after press hardening) - 7
1.5528 | 22 MnB5 AlSi-coated (after press hardening) - 1
1.5528 | 22 MnB5 AlSi-coated (after press hardening) - 3
1.5528 | 22 MnB5 AlSi-coated (after press hardening) - 4
1.5528 | 22 MnB5 AlSi-coated (after press hardening) - 5
1.5528 | 22 MnB5 AlSi-coated (after press hardening) - 6
1.5528 | 22 MnB5 AlSi-coated (after press hardening) - 7
1.5528 | 22 MnB5 AlSi-coated (after press hardening) - 8
1.5528 | 22 MnB5 AlSi-coated (after press hardening) - 9
1.5528 | 22 MnB5 AlSi-coated (after press hardening) - 10
1.5528 | 22 MnB5 AlSi-coated (after press hardening) - 11
1.5528 | 22 MnB5 AlSi-coated (after press hardening) - 13
1.5528 | 22 MnB5 AlSi-coated (after press hardening) - 14

1.5528 | 22 MnB5 AlSi-coated (after press hardening)

Numeric designation1.5528
Chemical designation22 MnB5
StateAlSi-coated (after press hardening)
Etching3 % Nital

Press-hardened component made of B-pillar reinforcement. The surface was hot-dip coated with AlSi (Usibor 1500-AS, ArcelorMittal). An interdiffusion layer of Fe-Al-Si has formed at the interface with the steel sheet, followed by the AlSi layer. The press hardening process has caused cracks to form in the AlSi layer, which end before the diffusion layer.

Edge zone

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