| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1469964 | Corrosion Science | 2011 | 9 Pages |
The interfacial morphology and corrosion resistance of low carbon Fe–B cast steels in zinc bath at 520 °C were investigated. The results show Fe–B cast steel containing high Cr and Ni exhibits the best corrosion resistance to liquid zinc. The corrosion layers are composed of Γ-Fe3Zn10, δ-FeZn10, ξ-FeZn13 and η-Zn. The corrosion behaviour of Fe–B cast steels includes the following processes: the preferential leach and dissolution of Cr and Ni, the formation of Fe–Zn compounds controlled by zinc atom diffusion, and the spalling of borides without the supporting role of α-(Fe, Cr) matrix corroded by liquid zinc.
► Fe–B steels containing Cr and Ni exhibit the best corrosion resistance in liquid zinc. ► Surface layers show gamma-Fe3Zn10, delta-FeZn10, zeta-FeZn13 and eta-Zn. ► Cr and Ni can enrich at the interface during the corrosion process. ► Corrosion processes include leaching, formation of compounds and spalling of borides.
