Multiscale study of the boron and carbon behavior in the fracture zone of the rapidly quenched nickel-based superalloy by the nuclear physics methods of the track and activation autoradiography

10th International School-Conference on Materials for Extreme Environment: Development, Production and Application

Shulga, A.V.^1

National Research Nuclear University MEPhI, Moscow Engineering Physics Institute, Kashirskoe highway, 31, Moscow

115409, Russia^1

关键词: Boron and carbons;    Cracks propagation;    Fracture zone;    Multi-scale;    Nickel- based superalloys;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/130/1/012017/pdf
DOI  :  10.1088/1757-899X/130/1/012017

来源: IOP

【 摘 要 】

The results of the study of the fracture zone of the rapidly quenched nickel-based superalloy after tensile tests are presented. The main attention was attended to the multiscale investigation of boron and carbon distribution in the area of the cracks propagation by the direct nuclear physics methods of the track and activation autoradiography. Tensile tests were performed at the temperatures up to 1150 °C. The nuclear reactor MEPhI IRT-2000 and cyclotron were applied for the autoradiography studies. Significant depleting of boron in the fracture zone which was revealed can be explained due to the intensive moving of the dislocation.