Structural factors determining applicability of the non-destructive X-ray diffraction method for assessing residual stress

Part 2
Medvedev P.N., Moiseeva N.S., Kochubey A.Ya., Juravleva P.L.
UDC
620.179
DOI
10.18577/2307-6046-2025-0-7-130-140
Article PDF (Russian) (1.4 MB)
How to cite
Medvedev P.N., Moiseeva N.S., Kochubey A.Ya., Juravleva P.L. Structural factors determining applicability of the non-destructive X-ray diffraction method for assessing residual stress. Part 2 // Proceedings of VIAM. 2025. No. 7. DOI: 10.18577/2307-6046-2025-0-7-130-140. URL: https://test.viam.ru/en/journal/2025/7/10
Keywords
surface residual stresses, metallography, phase composition, deformation
Abstract

The articlecompares the X-ray diffraction and metallographic methods for determining β- phase proportion in titanium alloys. The values of the β-phase proportion determined by the metallographic method are inflated against those determined by the X-ray method. These results show the necessity to improve these methods. The study of residual stresses has shown that when applying macrodeformation, the rate of the β-phase lattice deformation growth is higher than the same of the α-phase. The paper proposes to determine the  Poisson’s ratio by the X-ray method using the accessoriez for modeling of bending or uniaxial tension tests.

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