PhD opportunities

Characterization methodology of pipeline weld joints under hydrogen atmosphere using miniature samples

Thesis proposal

Area of expertiseMechanics
Doctoral SchoolSystems Engineering, Materials, Mechanics, Energy
SupervisorM. Yazid MADI
Research unitCentre of materials
ContactMADI Yazid
Starting dateOctober 1st 2021
KeywordsToughness, miniature samplse, ageing, steel, hydrogen
AbstractThis PhD project is a part of “MESSIAH” industrial chair funded by the French National Research Agency (ANR). The chair aims at methodology development to track in service properties evolution of structures used for future hydrogen transport. The PhD work will be carried out in collaboration with RICE-GRTgaz which actually manages public pipeline network for high pressure gaz transport of the total length of more than 32000 km. The main objective of the PhD project is to develop the experimental methodology for mechanical characterization of pipeline weld joints using miniature samples machined directly from weld joints. The microstructure of different zones in weld joint will be characterized using optical and electron microscopy and EBSD. Mechanical characterization will require different sample types to adjust behaviour law for different weld zones and to integrate it to a specific database which further will be used for finite element analysis. To perform the mechanical tests in conditions close to service ones of hydrogen transport, a special experimental set-up will be developed for miniature samples.
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):
Excellent bakcground in mechanics and metallurgy. Knowledge of welding process is beneficial. Aptitude to experimental work. Accuracy.

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
FundingConvention CIFRE