Open AccessResearch on Measurement Technology of Residual Stress in Rolling Aluminium Alloys
Author(s) -
Xi Wang
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/768/2/022021
Subject(s) - residual stress , aluminium , materials science , alloy , aluminium alloy , residual , diffraction , metallurgy , composite material , optics , mathematics , physics , algorithm
In the measurement of textured materials such as Al Alloy sheet, the traditional method of X-ray residual measurement (sin 2 ψ method) cannot be applied to these materials. In this paper, 2A97 aluminium lithium alloy was used for the study on residual stress measurement of texted materials. The X-ray diffraction method was used to test the orientation distribution function. The elastic constant of the material was calculated theoretically by Ruess model, Voigt model and Neerfeld-Hill model. And the residual stress was calculated. The blind-hole method was used to verify the results. The blind-hole result agreed well with the Neerfeld-Hill model.