Investigating the effect of residual stress on hydrogen cracking in multi-pass robotic welding and additive manufacturing

The aim of this project is the development of a round-robin Residual Stress (RS) measurement to investigate the effect of the ‎RS on hydrogen cracking. ‎Dr Javadi ‎(PI) is leading the RS area in the Center for Ultrasonic Engineering (CUE) and he has been a Keynote Speaker at ‎the 11th International Conference on Residual Stress (ICRS 11) where he presented his novel idea on RS ‎measurement using the Phased Array Ultrasonic Testing (PAUT) method [1]. This method will also be used ‎to study the effect of RS on hydrogen cracking. In this Strathclyde-ANSTO collaboration, ANSTO will conduct the Neutron ‎Diffraction (ND) to form the round-robin RS measurement project. ‎

[1] Y. Javadi et al., "Feasibility study of residual stress measurement using phased ‎array ultrasonic ‎method," presented at the 11th International Conference on Residual Stress, Nancy, France, 27-30 ‎March, 2022.‎