Issue 78

A. A. Frantsuzov et alii, Fracture and Structural Integrity, 78 (2026) 474-488; DOI: 10.3221/IGF-ESIS.78.27

The lineal intercept method assumes that grain boundaries are clearly visible and that ambiguous grains are absent. In the present high-grade pipe steel, this condition was not fully satisfied because of the diffuse PAG boundaries and banded regions shown in Figure 3 and Figure 5. For this reason, the manual diagonal method was considered more representative and was selected for comparison with the EBSD reconstruction results. This comparison is shown in Figure 13.

Figure 10: PAGS distributions obtained from the same area using different magnifications ( × 500 and × 1000).

Figure 11: Performance of the PAG reconstruction algorithm in the same region at different magnifications a) ×1000; b, c) ×3000.

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