Christophe Levaillant

TL;DR: In this paper, small angle neutron scattering and X-ray diffraction experiments, as well as transmission electron microscopy, were performed to characterize the precipitation of nanometric carbides, and the mechanical properties showed that the volume fraction of small precipitates directly influences the mechanical resistance at high temperature but has a detrimental effect on Charpy impact energy.

TL;DR: In this article, the deformation behavior of high manganese austenitic Hadfield steel sheet samples was studied under uniaxial tensile test conditions and the effect of temperature on the tensile behaviour and fracture appearance was also studied using the scanning and transmission electron microscopes.

TL;DR: In this paper, the effect of silicon on the stability of secondary carbides was studied using transmission electron microscopy and small-angle neutron scattering, and it was concluded that silicon has a detrimental effect as it shifts the secondary hardening peak towards lower tempering temperatures.

TL;DR: In this paper, the interaction between oxides formed on a work roll grade and the coefficient of friction established with a strip steel usually rolled by this roll grade was studied. But the authors focused on the formation and growth of the oxide scale.

TL;DR: In this article, the microstructural characteristics ensuring a good mechanical strengthening up to 600°C of a tempered martensitic steel containing 5% Cr (AISI H11) were investigated using transmission electron microscopy, energy-dispersive X-ray analysis, Xray diffraction and extraction of carbides.