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Measurement of residual stresses on a component using neutron diffraction technique, Pre-study

Reference number
Coordinator RISE IVF AB - Avdelning Tillverkning
Funding from Vinnova SEK 100 000
Project duration June 2019 - November 2019
Status Completed
Venture Research infrastructure - utilisation and collaboration
Call Industrial pilot projects for utilisation of neutron- and photon based techniques at large scale infrastructures - spring 2019
End-of-project report 2019-02586 _GKN_Aerospace.pdf (pdf, 201 kB)

Purpose and goal

The aim was to investigate possibilities with residual stress measurements of thick-walled titanium components using neutron diffraction technique. A literature study has been conducted and a consortium of experts has been established. A test object has been identified as well as the appropriate facility for the implementation of the experiment has been contacted. A plan for experiments and a B application has been sent to Vinnova. The project objective has been achieved.

Expected results and effects

Several publications indicate good opportunities to measure residual stresses on thick-walled, welded components in titanium. A consortium with RISE IVF, Swerim and GKN has been established and a proposal for funding of a pilot experiment (2019-05274) has been sent to Vinnova. The ambition is to eventually establish neutron diffraction as an industrial tool for measuring residual stresses on thick-walled components and as a support for validation of residual stress calculations using FEM.

Planned approach and implementation

A literature study has been conducted and a test object consisting of 2 thick-walled substrate welded with electron beam welding has been identified. A consortium with RISE IVF, Swerim and GKN has been established. A plan for experiments has been developed and a large scale facility has confirmed that the experiment can be carried out. A B-application "Verification of residual stresses after electron beam welding of thick sheets of Ti-4Al-6V (TiWeld)" (no 2019-05274) has been sent to Vinnova.

The project description has been provided by the project members themselves and the text has not been looked at by our editors.

Last updated 17 February 2020

Reference number 2019-02586

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