Study on the improving effect of Nb-V microalloying on the hydrogen induced delayed fracture property of 22MnB5 press hardened steel

• Published in: Materials & design Vol. 227; p. 111763
• Main Authors: Gui, Lintao, Zhao, Yan, Feng, Yi, Ma, Mingtu, Lu, Hongzhou, Tan, Kun, Chiu, Po-Han, Guo, Aimin, Bian, Jian, Yang, Jer-Ren, Jiang, Fatong, Song, Hui, Wang, Yangwei
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.03.2023; Elsevier
• Subjects: Grain refinement; Hydrogen embrittlement; Nanoscale precipitate; Nb-V microalloying; Press-hardened steel; Nb-V microalloying; Nanoscale precipitate; Press-hardened steel; Hydrogen embrittlement; Grain refinement

[Display omitted] •A novel Nb-V microalloyed press-hardened steel (22MnB5NbV) was developed to improve the hydrogen embrittlement (HE) of traditional 22MnB5.•The duration of no cracking for 22MnB5NbV in acidic solution is > 300 h even though the pre-bending stress is 1500–1600 MPa.•The complex ca...