|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Phase Transformations and Microstructural Evolution
||Study on the Effect of V Microalloying on Earthquake Resisting High-strength Reinforcing Bar Steels
||Junho Chung, Taehyung Kim, Jusang Lee
|On-Site Speaker (Planned)
Recently, the frequency of earthquakes has been increasing worldwide. As a result, steel reinforced with seismic performance that can satisfy the social needs to strengthen the existing seismic performance of infrastructure facilities has become important. In general, to secure the strength of reinforcing bars and to reduce the production cost, reinforcing bars are produced by the surface hardening using Tempcore. However, the use of a small amount of alloying elements and the application of Tempcore have limitations in producing reinforcing bars that require seismic performance. Microalloying and fine-grain strengthening are the most effective methods in developing high strength rebars. However, in V-microalloyed reinforcing bars, it was confirmed that the required strength did not increase proportional to the amount of V added. In this study, the effects of vanadium and other alloying elements on the mechanical properties and yield ratio of steel bars were investigated by tensile test and metallurgical evaluation.
||Planned: Supplemental Proceedings volume