PhD Studentship on nanomaterials:
Surface Mechanical Attrition Treatment (SMAT) is a new surface treatment developed in our lab to enhance the mechanical properties of metallic alloys. This process involves the formation of a nanocrystalline layer ascribable to a grain refinement mechanism induced by repeated impact loadings supported by the surface. The resultant system has a layered structure, composed of nanometric grains (less than 100 nm) at the top surface and a strain hardened transition layer in the subsurface. This nanocrystallised microstructure was observed in different metallic materials like iron, copper, titanium alloy or stainless steel.
Tensile and fatigue tests performed at room temperature showed that this superficial nanostructure coupled to the transition layer induces very attractive mechanical properties. The tribological properties are also affected by SMAT as the surface hardness is increased and a high compressive residual stress state is created.
The goals of this PhD work will be to characterize, to better understand and to model the SMAT process. The aim is to enhance the mechanical properties (fatigue, thermal fatigue) as well as the surface properties (wear, corrosion behavior) of industrial parts using SMAT.
The appointee will have the opportunity to use a wide variety of techniques to characterise the nanocrystallised materials: Scanning and Transmission Electron Microscopy, nanoindentation tests, X-ray diffraction technique… This work will be carried out together with a big French automotive company.
Requirement: Candidates must have Master degree in Mechanics and/or in Materials Science
Financial support : 1 650 euros per month
Ở Pháp đây là lương bỏ túi của bạn, sau thuế thì còn 1320E (học bổng 322 hiện là 740E/tháng Net). Học phí không phải đóng như bên Mỹ, Anh. Mức này cho trong 36 tháng lên tục
Applications and enquiries should be sent BY E-MAIL to Dr Delphine RETRAINT,
Email:
delphine.retraint@utt.fr, including:
1) a short motivation letter
2) a curriculum vitae
3) a copy of your diploma/MSc certificate (as appropriate)
4) brief summaries of your previous research
5) names and contact details of your academic references.
Dr Delphine RETRAINT
Université de Technologie de Troyes
ICD/LASMIS
12 rue Marie Curie – BP 2060
10 010 TROYES Cedex
FRANCE
chocolatenoir
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