Comparison of deformation texture in FePd alloy via X-ray diffraction and electron backscatter diffraction techniques

Area of Science:

• Materials Science
• Metallurgy
• Crystallography

Background:

• Texture analysis is crucial for understanding material properties.
• Electron Backscatter Diffraction (EBSD) and X-ray Diffraction (XRD) are common texture measurement techniques.
• Optimizing EBSD scanning parameters is essential for accurate macrotexture determination.

Purpose of the Study:

• To compare texture measurements obtained by EBSD and XRD in rolled FePd alloys.
• To investigate the influence of scanning step size on EBSD texture analysis.
• To propose a quantitative method for comparing texture profiles.

Main Methods:

• Rolled FePd alloys were analyzed using EBSD and XRD.
• The effect of varying scanning step sizes (1-20 μm) in EBSD was systematically studied.
• A correlation coefficient was introduced to quantify the similarity between orientation density profiles.

Main Results:

• EBSD and XRD measurements showed comparable macrotexture results for rolled FePd alloys.
• A correlation coefficient close to 1 was observed for scanning step ranges of 1-20 μm after significant cold rolling (50% and 88% reduction).
• Larger scanning steps in EBSD effectively captured the primary macrotexture components.

Conclusions:

• EBSD, with optimized scanning parameters, can reliably measure macrotexture in rolled FePd alloys.
• The proposed correlation coefficient provides a quantitative measure of texture similarity between methods.
• EBSD-based macrotexture analysis presents a viable alternative for material texture quality control.