PhD opportunities

Microstructure-properties relationship in AISI 316L(N) stainless steel produced by wire additive manufacturing: experimental study and simulation

Thesis proposal

Area of expertiseMaterials science and engineering
Doctoral SchoolSystems Engineering, Materials, Mechanics, Energy
SupervisorM. Vladimir ESIN
Research unitCentre of materials
ContactESIN Vladimir
http://www.mat.mines-paristech.fr/Accueil/Propositions-de-theses/
Starting dateOctober 1st 2021
KeywordsAdditive manufacturing, stainless steels, processing, heat treatment, microstructure, physical metallurgy
AbstractAdditive manufacturing processes are increasingly present in the most varied sectors of activity, opening up the possibilities of geometrically complex structures, with high added value, and respecting the criteria of sustainable development of today's society. Among the different additive manufacturing technologies, wire deposition processes make optimum use of the material. For the fusion of the metal wire, several sources of heat are possible. The objective of this study is to provide better understanding of the effect of the different parameters applied for laser-wire additive manufacturing and arc-wire additive manufacturing processes on the quality of pieces made of 316L(N) stainless steel. Several points are going to be analyzed: i) the effect of operating parameters on the geometric precision, on the solidification microstructure and on the mechanical behavior of the manufactured parts; ii) the effect of heat treatments on the metallurgical and mechanical properties; iii) numerical simulations, allowing to understand the phenomena observed during the manufacturing process.
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):

The PhD candidate should have strong background in materials science (especially in metallurgy) and mechanics as well as skills required to perform numerical simulations (using Cast3M software) together with experimental study.


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