Influence of Lateral Incision on Inhomogeneous Deformation of a Nickel [001] - Single Cristal at Axial Compression

All-Russia Scientific and Practical Conference on Materials Treatment: Current Problems and Solutions

Lychagin, D.V.^1,2 ; Alfyorova, E.A.^1,2 ; Lychagin, M.V.^3 ; Dilun, Czyan^1

National Research Tomsk Polytechnic University, pr. Lenina, 30, Tomsk

634050, Russia^1

National Research Tomsk State University, pr. Lenina, 36, Tomsk

634050, Russia^2

Novosibirsk State University, Pirogova str., 2, Novosibirsk

630090, Russia^3

关键词: Deformation domain;    Distribution patterns;    Electron back-scattered diffraction;    Inhomogeneous deformation;    Mis-orientation;    Schmid factors;    Slip plane;    Slip system;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/125/1/012004/pdf
DOI  :  10.1088/1757-899X/125/1/012004

来源: IOP

【 摘 要 】

We used the scanning electron microscopy and the electron backscattered diffraction to investigate a deformation relief and a crystallographic disorientation of a nickel [001] single crystal with {100} faces with a lateral incision. We identified that the lateral incision can change the shear domains distribution pattern in the sample by creating additional deformation domains near the incision. The change in the patterns of the misorientation accumulation on the mutually perpendicular faces accompanies this deformation. We established that the orientation alteration occurs toward the increase of the Schmid factor for the slip systems in two of the four (previously equally loaded) slip planes. This method of shear deformation contributes to an optimal mutually consistent deformation in the adjacent areas of the single crystal.