Systematic study of structural changes in the vicinity of indentation marks with HR-EBSD

11th Hungarian Conference on Materials Science

Kalácska, Sz^1 ; Dankházi, Z.^1 ; Groma, I.^1

Eötvös Loránd University, Department of Materials Physics, Budapest, Hungary^1

关键词: Collective motions;    Depth distribution;    Experimental knowledge;    High resolution electron backscatter diffractions;    Primary task;    Stress and strain distribution;    Stress values;    Systematic study;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/426/1/012022/pdf
DOI  :  10.1088/1757-899X/426/1/012022

来源: IOP

【 摘 要 】

In crystalline materials a detailed understanding of the effects of external deformation is essential to develop new materials. The mechanical properties are highly influenced by the collective motion of lattice defects (mainly dislocations). The primary task of the research is to gain more experimental knowledge on the stress and strain distribution evolving in the crystal due to external deformation. In the reported investigation an indenter was pressed into the sample to a depth of a few micrometers. After the removal of the head high resolution electron backscatter diffraction (HR-EBSD) measurements were carried out in the vicinity of the mark, giving the 3D depth distribution of stress values.