The influence of cooling rate below the martensite start temperature, Ms, on kinetics martensitic transformation in a medium carbon low alloy steel was determined using high resolution dilatometry, optical microscopy and X-ray diffraction techniques. A two-stage observed for slow rates while at higher rates, occured through single stage process. It is shown that Koistinen–Marburger equation can...

In this work, the formation of austenite in intercritical interval under continuous heating and isothermal holding ductile iron with various chemistries was investigated using high-resolution dilatometry quantitative metallographic analysis. The study conducted fully ferritic pearlitic matrices as initial microstructures. Subsequently, a mathematical model based on Avrami's equation, that descr...

The addition of high-content alloying elements and the unbefitting process make carbide-free bainite steel difficult in industrial production. Thus, we adopted a dynamic continuous cooling for developing high-strength cold-rolled low-alloy bainitic steels this study. influence rates on microstructure mechanical properties was investigated by dilatometry, scanning electron microscopy (SEM), X-ra...

We report the ground state magnetic structure and in-field magnetostrictive effects of $\mathrm{Ni}\mathrm{Ti}{\mathrm{O}}_{3}$ studied by means zero-field single-crystal neutron diffraction, magnetization, high-resolution dilatometry experiments. Zero-field diffraction on single crystals confirms an easy-plane antiferromagnet with a multidomain state. Upon application external fields, shows ev...

The widespread application of additive manufacturing in ceramics is still hindered by recurrent cracking issues during debinding. To date, the various strategies that have been attempted to reduce this problem often fail upon particle size reduction. Indeed, a reduction affects diffusion rates (e.g. pore network) such even slow heating and long dwell times debinding may not prevent crack format...

The effects of boron segregation and austenite grain size on the bainitic isothermal transformation a high-strength steel were studied independently. Dilatometry, microstructural observations previous atom probe tomography analyses showed that rate decreases with increasing excess at boundaries. We also found causes an unexpected effect: large grains transform faster than small ones. A kinetic ...