2006 | OriginalPaper | Buchkapitel
Microstructure of Reactor Pressure Vessel Steel Close to the Fracture Surface
verfasst von : M. Karlik, P. Hausild, C. Prioul
Erschienen in: Fracture of Nano and Engineering Materials and Structures
Verlag: Springer Netherlands
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A transmission electron microscopy study of microstructure in the vicinity of fracture surface was carried out in French tempered bainitic nuclear reactor pressure vessel steel 16MND5 (equivalent to the American standard A508 Class 3). Cross-section thin foils from nickel electroplated Charpy V-notch specimens fractured in impact and quasi static loading at −30°C (ductile to brittle transition temperature region) were prepared in the ductile tearing and cleavage regions of the fracture surface (Fig. 1).