An attempt to define a Charpy V-notched mastercurve to fit transition of ferritic steels

This contribution intends to present the development of a Charpy V-notched mastercurve to fit or extrapolate the transition of ferritic steels. Mastercurve is largely used to fit fracture toughness and can be derived for Charpy toughness. Some changes have to be performed regarding particular case of Charpy. This work is based on the assessment of a large database that covers a wide range of materials with yield strengths from 290 to 1180 MPa. The purpose of this mastercurve is to predict the correct shape of the Charpy transition with a reasonable safety margin on the basis of a limited amount of data.