Effect of nitrogen on transformation behavior and intragranular ferrite formation in a V–Ti microalloyed steel for forgingNingbo Zhou, Fan Zhao, Yiqun Liu, Bo Jiang, Chaolei Zhang and Yazheng LiuMetall. Res. Technol., 115 3 (2018) 311DOI: https://doi.org/10.1051/metal/2018007