Authors
Manuel François, Benoît Panicaud, Léa Le Joncour, Andrzej Baczmanski, Anna Paradowska, Sebastian Wronski, Elizabetha Gadalinska,
Title
Comparison of strain/stress behaviour of duplex stainless steels between mesoscopic and macroscopic scales by neutron measurements extended to the necking range
In
Thin Solid Films
Volume
530
Pages
62–65
Publisher
Elsevier
Year
2012
Indexed by
Abstract
The mechanical behaviour of a duplex stainless steel is investigated through mesoscopic measurements by diffraction method. Especially, the lattice strains for large tensile macro-deformation, up to the fracture of the sample, were measured using Time-Of-Flight neutron diffraction method. A former study has been extended to the necking range, using special correction for macro-stress values. It has been found that during large plastic deformation the lattice stresses increase almost linearly with the macro-stress value. The experimental results enable also to verify the stress concentration tensor predicted by self-consistent model. For those large deformations, mechanical effects of ductile damage have been observed.
Affiliations
Offprint