PhD opportunities

Thermo-mechanical behaviour of iron oxides at high temperature.

Thesis proposal

Area of expertiseComputational mechanics and Materials
Doctoral SchoolSFA - Sciences Fondamentales et Appliques
SupervisorM. Pierre MONTMITONNET
Co-supervisorM. Karim INAL
Research unitCentre for material forming
Contact
http://www.cemef.mines-paristech.fr/sections/formations/doctorats/pour-postuler/these-cemef-3458
Starting dateOctober 1st 2019
KeywordsMechanics, Fracture, iron oxides, descaling
AbstractThe PhD work consists in identifying the fracture mechanisms and the critical stresses for transverse fracture and for delamination of the oxide scales. Several steel grades will be chosen so as to cover a variety of descaling difficulties. Their physical and chemical study will establish the internal structure of the oxide scale as a function of the alloying elements (Mn, Si, Al, Cr, P, S). The fracture behavior will be related to the structure of each oxide scale.
The work includes

the study of the oxide layers in terms of their microstructure and their stress as a function of growth environment and temperature.
the design of adequate mechanical tests at high temperature.
their modelling for parameter identification.

It should lead to a global understanding of the physical and mechanical mechanisms involved in the descaling process and a capacity of quantitative finite element modelling of the process.
ProfileMaterials Science, Surface & Interface Science, Mechanics of Materials
FundingConvention CIFRE