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

Part 1
Medvedev P.N., Moiseeva N.S., Kochubey A.Ya., Juravleva P.L.
UDC
620.179
DOI
10.18577/2307-6046-2025-0-1-87-99
Article PDF (Russian) (1.13 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 1 // Proceedings of VIAM. 2025. No. 1. DOI: 10.18577/2307-6046-2025-0-1-87-99. URL: https://test.viam.ru/en/journal/2025/1/8
Keywords
surface residual stresses, texture analysis, roughness, aluminum and nickel alloys
Abstract

Residual stresses assessment of samples with different structural conditions is carried out under various x-ray parameters. Modeling of residual stresses under four-point bending has been executed. It shows that the most significant factor influencing residual stresses measurement error is the interplanar distance measurement error. Negative influence texture factors on the accuracy of residual stresses determination are identified – x-ray line small intensity out of textural maximum and elasticity anisotropy in materials. The surface roughness up to Ra = 1,4 microns for aluminum alloys samples is not an influence factor.

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