Investigation of Cold Forming Cracking Defect of High-Strength Vehicle Structural Steel
- 10.2991/ame-17.2017.56How to use a DOI?
- high-strength vehicle structural steel; cold bending forming; crack; liquation TiN; TiC precipitate.
Abstract:The reason of high-strength vehicle structural steel cracked during cold bending was investigated. The large liquation TiN distributed in grain and the group gathered by multiple liquation TiN can be origin of crack, the mismatching of forming mould leads to large processing stress thereby causing cracking, the metallographic structure showing blurry grain boundaries and cementites gathered there restrains crack propagation hardly, thereby intergranular fracture occurs easily, the fracture morphology characterizes cleavage fracture, macroscopic appearance is brittle fracture.
- © 2017, 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 - Kai-Yu Cui AU - Xiao-Yu Ye AU - Zheng-Rong Li AU - Xue-Gang Xiong PY - 2017/04 DA - 2017/04 TI - Investigation of Cold Forming Cracking Defect of High-Strength Vehicle Structural Steel BT - Proceedings of the 3rd Annual International Conference on Advanced Material Engineering (AME 2017) PB - Atlantis Press SP - 337 EP - 342 SN - 2352-5401 UR - https://doi.org/10.2991/ame-17.2017.56 DO - 10.2991/ame-17.2017.56 ID - Cui2017/04 ER -