... Abstract The Charpy impact test has historically been used in a qualitative and comparative manner to infer toughness behaviour and determine the brittle to ductile transition temperature (T BD ) of low alloy ferritic steels used in reactor pressure vessels (RPVs). The simple and quick setup...

... in the morphology of pearlite, and hence in its ability to offset the deterioration of toughness in the post weld heat treatment due to iron carbide precipitation by means of pearlite spheroidization. toughness carbon steel flanges carbon steel forgings charpy normalizing heat treatment cooling rate...

... to installation. Based on literature review the need for improvement in the approach for mechanical testing including fracture toughness testing for modern materials was identified. brittle fracture impact testing toughness carbon steel charpy grain size normalizing heat treatment LOW IMPACT TEST...

... programme. The reactor pressure vessels (RPVs) cannot be tested destructively in a direct way, neither can it be replaced. An indirect way is the use of Charpy samples from the so-called surveillance programs. The general strategy on the long term should focus on the ability to perform direct non...