Thermal microstresses determined using diffraction and self-consistent model

Abstract

In this work the residual stress field in surface layer of titanium sample is determined using the X-ray diffraction method based on grazing incident angle geometry. The surface of the sample was thermally treated by laser beam causing a high level of macro and microstresses. The experimental results were analysed with help of the self-consistent model and a new method for estimation of the first and second order stresses was proposed.

Key Words:

• Microstresses
• Diffraction
• Self-consistent model
• Grazing incidence geometry