Hot Ductility of Ti/Nb-added 800MPa Grade Weathering Steel
- 10.2991/icaemt-15.2015.162How to use a DOI?
- 800MPa High Strength Steel, continuous casting slabs, hot ductility, brittle zone.
The hot ductility behavior of two kinds of 800MPa grade Ti/Nb-added weathering steel has been investigated by using Gleeble3500 thermo-mechanical simulator. The tensile strength (TS) and reduction in area (RA) were acquired to draw hot ductility curve and hot strength curve. SEM fractographs and microstructures of the tensile specimens were analyzed. The results show that the occurrence of the third brittle zone was related to the formation of film-like ferrite phase along the prior austenite grain boundary. Moreover, the addition of alloy elements has a big influence on hot ductility. Deep ductility trough was observed for niobium added titanium containing steel, while titanium containing steel free of niobium shows excellent hot ductility.
- © 2015, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Xue Zhao AU - Bin Gan AU - Mei Zhang AU - Yong Zhong AU - Menglian Hou AU - Lin Li PY - 2015/08 DA - 2015/08 TI - Hot Ductility of Ti/Nb-added 800MPa Grade Weathering Steel BT - Proceedings of the 2015 International Conference on Advanced Engineering Materials and Technology PB - Atlantis Press SP - 855 EP - 859 SN - 2352-5401 UR - https://doi.org/10.2991/icaemt-15.2015.162 DO - 10.2991/icaemt-15.2015.162 ID - Zhao2015/08 ER -