The dependence of X-ray elastic constants with respect to the penetration depth.

ABSTRACT: X-ray diffraction techniques are widely used to estimate stresses within polycrystalline materials. The application of these techniques requires the knowledge of the X-ray elastic constants relating the lattice strains to the stress state. Different analytical methods have been proposed to evaluate the X-ray elastic constants from the single-crystal elastic constants. For a given material, such methods provide the bulk X-ray elastic constants but they do not consider the role of free surfaces. However, for many practical applications of X-ray diffraction techniques, the penetration depth of X-rays is the same order of magnitude as the grain size, which means that the influence of the free surface on X-ray elastic constants cannot be excluded. In the present work, a numerical procedure is p

SUBMITTER: Mareau C 

PROVIDER: S-EPMC10543684 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature