Simulating testing conditions leading to evaluate the intergranular stress corrosion cracking sensitivity of structural alloys is crucial to
estimate the lifetime of in-service components. Former studies have pointed out that a simple modification of the design of slow strain
rate tensile specimens was particularly convenient for evaluating the susceptibility to intergranular stress corrosion cracking of nickelbase
alloys. The aim of the present work is to characterize and model the mechanical behaviour of such specimens. Validation of proposed
modelling relies mainly on tensile tests carried on specimens equipped with strain gages. One of the striking results is that, for a
given displacement rate of the heads of the specimen, a much slower strain rate can be obtained locally in comparison with the strain rate
of an equivalent smooth specimen
