|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||2016 Technical Division Student Poster Competition
||SPG-47: Effect of Chemistry and Microstructure on the Toughness of C-½ Mo Steel
||Maneel Bharadwaj, Carl D Lundin, Martin Prager
|On-Site Speaker (Planned)
C-½ Mo steels have been traditionally used in petroleum refineries where toughness is an important design parameter to be taken into consideration for service performance. Ten different C-½ Mo steel samples were used to study the effects of chemistry, and microstructure on Charpy impact toughness. To incorporate the effects of different heat treatments on toughness, four different heat treatments were performed. Two toughness prediction factors, PF-1 and PF-2, were developed using data obtained from metallurgical characterization. PF-1 estimates the15 ft-lbf and 40 ft-lbf transition temperatures and PF-2 allows estimation of fracture appearance transition temperature. The efficacy of the graphical fit of the prediction factors was evaluated using linear regression analysis (with R2 ~0.90-0.95). The accuracy of these prediction factors was verified using two new C-½ Mo materials. These prediction factors can be of significant importance for engineers, manufacturers, and operators in making fitness-for-service decisions for C-½ Mo steels.
||Definite: None Selected