| About this Abstract |
| Meeting |
MS&T22: Materials Science & Technology
|
| Symposium
|
Advances in Zinc-coated Sheet Steel Processing and Properties
|
| Presentation Title |
The Interaction between Mn and Sn and Its Effects on the Selective Oxidation of Advanced High Strength Steels |
| Author(s) |
Jonas Wagner, Joseph R McDermid |
| On-Site Speaker (Planned) |
Jonas Wagner |
| Abstract Scope |
Sn microalloying has been found to improve the continuous galvanizing performance of Advanced High Strength Steels (AHSS) with Mn contents between 2 and 6 wt. % by reducing selective oxidation prior to dipping. However, its benefits for steels with higher Mn levels remain uncertain. In this study, the effects of increasing Mn content on the Sn segregation and in turn the effect of the segregated Sn on the selective oxidation of Fe-Mn-Sn model alloys are evaluated. Sn is found to decrease internal and external oxidation, while the surface segregation of Sn is not adversely affected by higher Mn levels. Sn is present at the surface directly after ramping and does not systematically change for holding temperatures between 675 and 825 °C and holding times between 60 and 480 s, indicating Sn microalloying to be a robust strategy for improving galvanizing performance of a wider range of AHSS. |