|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||2016 Technical Division Student Poster Competition
||SPU-1: Characterization of Inclusions in High Strength Interstitial Free (IF) Steel
||David Sartor, Marvin Ambrosio
|On-Site Speaker (Planned)
High strength interstitial free (IF) steel has become a high demand product in the automotive and white goods sectors due to its formability, strength and low density. Inclusions however deteriorate these properties. Producing steel with desired properties is achieved by controlling process parameters whose correlation with quality is established by studying inclusions generated through the process. The project involves characterizing high strength IF steel samples obtained from different stages of two steelmaking processes used by an industry partner in China: (1) alloying and (2) RH degassing. Their cleanliness in terms of inclusion content, particularly of alumina, is investigated using two-dimensional and three-dimensional characterization. Samples are polished then etched using the Selective-Potentiostatic-Etching-by-Electrolytic-Dissolution (SPEED) method. They are observed under SEM-EDX before and after etching to determine the ratio of inclusion to total area, inclusion morphology and size, and chemical composition. Changes in the steelmaking process are then recommended to improve steel quality.
||Definite: None Selected