Neutron Diffraction Strain Measurement During TIG Welding

摘要

Development of hot cracks during welding of austenitic materials is a challenge which must be coped with when a suitable welding method is to be chosen. Boundary conditions about hot crack formation are not sufficiently known yet. One factor is the state of strain during welding. Therefore, strain is determined via neutron diffractometry next to the fusion line during the welding process. This evaluation allows to draw conclusions about the influence of the state of thermal strain on the hot crack formation.