PhD opportunities

Development of preheating strategies for non-weldable Ni-based superalloys manufactured by L-PBF process

Thesis proposal

Area of expertiseMaterials science and engineering
Doctoral SchoolISMME - Systems Engineering, Materials, Mechanics, Energy
SupervisorM. Vincent GUIPONT
Research unitCentre of materials
ContactCOLIN Christophe
http://www.mat.minesparis.psl.eu/formation/doctorat/propositions-de-sujets-de-these/
Starting dateOctober 1st 2022
KeywordsProcess, additive manufacturing, in-situ measurements, cracking
AbstractNon weldable Ni-based superalloys are susceptible to cracking during their elaboration by additive manufacturing (solidification cracking). The proposed study aims at defining a new preheating strategy in order to minimize or even eliminate solidification cracking
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):
Good experimenter with good knowledge of thermal (conduction, convection and radiation) and metallurgy (solidification, solid phase precipitation). The candidate will have to become familiar with thermal measurement means (IR cameras, thermocouples) and with analysis means such as ATD, DSC and DRX to evaluate phase transformations after thermal post-treatments.



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
FundingConvention CIFRE