Application of 3D DIC-Assisted Residual Stress Measurements for Friction Stir Welding Weld from Ultrafine-Grained Aluminum

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  • University of Warsaw

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Abstract

The present study describes a novel approach applying 3D digital image correlation to a hole drilling method to measure residual stresses. Measurements were performed on a friction stir-welded joint made of ultrafine-grained aluminum. The results show that severe plastic deformation did not significantly change the residual stresses, while in the weld’s stir zone they increased to 100 to 200 MPa. The obtained results demonstrate the reliability of the applied residual stress measurement method.

Details

Original languageEnglish
Pages (from-to)1-6
Number of pages6
JournalMetallurgical and Materials Transactions A
Volume52A
DOIs
Publication statusPublished - 17 Nov 2020

Keywords

  • Friction stir welding, Digital image correlation, Residual stress, Ultrafine-grained aluminum

ID: 7012404