Effect of acicular ferrite on mechanical properties of hot-rolled ultra-fine grain microalloyed steels
- 10.2991/icmmct-16.2016.147How to use a DOI?
- Acicular ferrite; ultra-fine grain microalloyed steels; mechanical properties; microstructural quantitative analysis; morphological characteristics.
In consideration of the high tensile strength but low elongation properties of ultra-fine grain microalloyed steels prepared by deformation-induced phase transformation rolling technology, microstructural quantitative analysis was conducted. Results show that the volume ratio of acicular ferrites is mainly influenced by cooling rate, the higher the cooling rate is, the more acicular ferrites are obtained. By increasing the volume ratio of acicular ferrites, the tensile strength increases; On the other hand, the elongation reduces markedly because of the morphological characteristics, needle effect, size factor of acicular ferrites and so on. By adjusting the cooling rate in cooling process, the volume ratio of acicular ferrites can be controlled in the optimum range, so as to improve the comprehensive mechanical properties of steel.
- © 2016, 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 - Xincheng Li AU - Xiaoli Wang AU - Weixing Zhu AU - Yongchun Tang AU - Tao Li AU - Jinbao Xu AU - Liang Chen PY - 2016/03 DA - 2016/03 TI - Effect of acicular ferrite on mechanical properties of hot-rolled ultra-fine grain microalloyed steels BT - Proceedings of the 2016 4th International Conference on Machinery, Materials and Computing Technology PB - Atlantis Press SP - 757 EP - 760 SN - 2352-5401 UR - https://doi.org/10.2991/icmmct-16.2016.147 DO - 10.2991/icmmct-16.2016.147 ID - Li2016/03 ER -