Reheating cracking susceptibility in the weld heat-affected zone of reduced activation ferritic-martensitic steels and the effect of Cr content

Microstructural modelling and characterisation of laser-keyhole welded Eurofer 97

“…Previous research on the fusion welding of RAFM steels using conventional techniques (e.g. gas tungsten inert welding) found that the welds produced exhibit a high degree of hardness, and are susceptible to type IV cracking and reheating cracking [13,14]. This has been attributed to the high matrix carbon content of the welded region caused by carbide dissolution during the period of high temperature [14].…”

Data-Driven Ultrasonic Non-Destructive Evaluation of Pipes and Welds in the Context of the Oil and Gas Industry

“…The welding process is controlled by multiple parameters, being influenced by many factors. Given this, a weld is susceptible to various types of flaws like slag inclusion, porosity, lack of fusion, lack of penetration, hydrogen cracks, solidification crack, and reheat crack [36,37,38,39,40]. Such vast possibilities of defects make the weld a critical point of the pipeline, and research regarding the inspection of these structures is paramount.…”