|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Advanced High-strength Steels
||G-7: Quantitative Analysis of External Selective Oxidation of a CMnSi Advanced High Strength Steel Using a Novel Approach
||Mary Story, Bryan A Webler
|On-Site Speaker (Planned)
Prior to hot-dip galvanizing, advanced high strength steel grades are subject to a high-temperature annealing furnace. Alloy chemistry and annealing furnace conditions can lead to surface oxides that inhibit galvanized coating adherence. To better characterize the furnace variables influence on selective oxidation, a novel technique for quantifying external oxidation using atomic force microscopy (AFM) was developed in the work presented here. Samples made of a CMnSi grade of advanced high strength steel (AHSS) with a non-oxidizing region were viewed in-situ in a confocal scanning laser microscope (CSLM) during oxidation. Using the un-oxidized region as a zero-height baseline, height data collected from the AFM combined with chemical analysis collected from an SEM equipped with (EDS) served as a means to quantitatively characterize the oxidized surface. Quantifying this previously qualitative parameter will enable better understanding of how various parameters influence external oxidation.
||Planned: Supplemental Proceedings volume