Dislocation density measurement by X-ray diffraction
Dislocation density can be measured from the profile analysis of X-ray diffraction. Measuring the dislocation density in materials helps in the analysis of material strength.
◆The Significance of Measuring Dislocation Density in Materials There are several methods for strengthening metallic materials: 1. Work hardening, 2. Precipitation strengthening, 3. Solid solution strengthening, and 4. Refinement of grain size, all of which enhance strength by suppressing the movement of dislocations. Dislocations are defects that occur within the metal when it is deformed, and their movement within the crystal facilitates further deformation. The factors that inhibit the movement of dislocations for each of the aforementioned strengthening methods are as follows: 1. Increase in the number of dislocations 2. Fine precipitates 3. Strain caused by the mixing of elements of different sizes 4. Increase in the proportion of grain boundaries Therefore, measuring the dislocation density in materials is useful for analyzing material strength.
- 企業：大同分析リサーチ
- 価格：10,000 yen-100,000 yen
