Comparative study on Charpy specimen reconstitution techniques - Mines Paris Accéder directement au contenu
Article Dans Une Revue Nuclear Engineering and Design Année : 2011

Comparative study on Charpy specimen reconstitution techniques


Reconstitution techniques are often used to allow material from previously fractured Charpy-V specimens to be reused for additional experiments. This paper presents a comparative experimental study of various reconstitution techniques and evaluates the feasibility of these methods for future use in shielded cells. The following techniques were investigated: arc stud welding, 6.0 kW CO2 continuous wave laser welding, 4.5 kW YAG continuous wave laser welding and friction welding. Subsize Charpy specimens were reconstituted using a 400 W YAG pulsed wave laser. The best result was obtained with arc stud welding; the resilience of the reconstituted specimens and the load-displacement curves agreed well with the reference specimens, and the temperature elevation caused by the welding process was limited to the vicinity of the weld. Good results were also obtained with friction welding; this process led to the best quality welds. Laser welding seems to have affected the central part of the specimens, thus leading to different resilience values and load-displacement curves.



Dates et versions

hal-00652943 , version 1 (16-12-2011)



B. Bourdiliau, Guy Marc Decroix, Xavier Averty, P. Wident, Yves Bienvenu. Comparative study on Charpy specimen reconstitution techniques. Nuclear Engineering and Design, 2011, 241, pp.2722-2731. ⟨10.1016/j.nucengdes.2011.06.012⟩. ⟨hal-00652943⟩
232 Consultations
0 Téléchargements



Gmail Facebook X LinkedIn More