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(SUBJECT PROVIDED ) Effect of processing route on long-term high temperature resistance of austenitic stainless steel

Thesis proposal

Area of expertiseMaterials science and engineering
Doctoral SchoolISMME - Systems Engineering, Materials, Mechanics, Energy
SupervisorM. Vladimir ESIN
Research unitCentre of materials
Contacthttps://www.mat.minesparis.psl.eu/formation/doctorat/propositions-de-sujets-de-these/
Starting dateOctober 1st 2023
KeywordsAISI 316L(N, creep, carbonitrides, micromechanical modelling
AbstractAs part of the energy transition, high demands of electric energy are expected for the next decades, a part of which can be fulfilled by Nuclear Power Plants which produce low CO2 emissions and thus contribute very few to global warning. The sodium cooled fast breeder reactors are designed to operate at 500 C in their hottest parts and during up to 60 years. Long term creep damage of the material constitutive of the non-replaceable components must therefore be studied carefully. The present study will thus focus on the creep behaviour of this material, an AISI 316L(N) steel, especially the effect of microstructure on mechanical properties in its initial state and for long-term high temperature exposure. Different steel compositions will be considered as well. The main objectives will be to elucidate the key microstructural parameters responsible for mechanical properties variation and to introduce them appropriately into a micro-mechanical modelling of creep. Such kind of modelling should improve the confidence in lifetime predictions of structures built in AISI 316L(N) steel and submitted to such harsh conditions which cannot be easily assessed experimentally.
ProfileEngineer and / or Master of Science - Good level of general and scientific culture. Good level of knowledge of French (B2 level in french is required) and English. (B2 level in english is required) Good analytical, synthesis, innovation and communication skills. Qualities of adaptability and creativity. Teaching skills. Motivation for research activity. Coherent professional project.

Prerequisite (specific skills for this thesis):

PhD candidate should have excellent skills in mechanics and physical metallurgy and ability for both experimental work and micro-mechanical modelling.


Applicants should supply the following :
• a detailed resume
• a copy of the identity card or passport
• a covering letter explaining the applicant’s motivation for the position
• detailed exam results
• two references : the name and contact details of at least two people who could be contacted
• to provide an appreciation of the candidate
• Your notes of M1, M2
• level of English equivalent TOEIC

to be sent to recrutement_these@mat.mines-paristech.fr
FundingContrat de recherche

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