The Hot-Stamping Effect on the Corrosion Properties of the 22MnB5 Steel Coated with Hot-Dip Aluminum-Silicon Assessed by a Salt Spray Test and Raman Spectroscopy

Autor: Camila Pucci Couto, Kitty Baert, Isolda Costa, Zehbour Panossian, Iris De Graeve, Herman Terryn, Jesualdo Luiz Rossi, Reynier I. Revilla
Přispěvatelé: Faculty of Engineering, Materials and Chemistry, Electrochemical and Surface Engineering, Architectural Engineering, Materials and Surface Science & Engineering
Rok vydání: 2022
Předmět:
Zdroj: Corrosion. 78:339-349
ISSN: 1938-159X
0010-9312
DOI: 10.5006/4016
Popis: The effect of hot stamping on the corrosion properties of boron-manganese 22MnB5 steel coated with hot-dip aluminum-silicon was evaluated under severe conditions by a continuous salt spray test (SST). The corrosion mechanism changed from localized to generalized, as cathodic precipitates were not present after hot stamping. Intrinsic defects in press-hardened steel samples were the reason for severe damage in both metallic coating and steel substrate under SST conditions. The red rust formed at the top surface, characterized as different iron-based compounds, is due to both the iron diffusion from the steel substrate toward the surface and the corrosion of the steel substrate.
Databáze: OpenAIRE