Characterization of geometrically necessary dislocation evolution during creep of P91 steel using electron backscatter diffraction

• Published in: Materials characterization Vol. 195; p. 112501
• Main Authors: Zhang, Kai, Liu, Xinbao, Fan, Ping, Zhu, Lin, Wang, Kai, Wang, Lin, Zhao, Caili
• Format: Journal Article
• Language: English
• Published: Elsevier Inc 01.01.2023
• Subjects: Creep; Electron backscatter diffraction; Geometrically necessary dislocation; P91 steel; Geometrically necessary dislocation; Creep; Electron backscatter diffraction; P91 steel

In this study, the change of geometrically necessary dislocation (GND) has been investigated during the elevated temperature creep of P91 steel. Firstly, the crept microstructures of P91 steel at 873 K and 165 MPa were characterized by electron backscatter diffraction (EBSD). Then, the resultant GND...