Publication
The effects of irradiation and testing temperature on tensile behaviour of stainless steels
Publications associées (44)
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Kirigami, the ancient technique of paper cutting, has been successfully applied to enhance the stretchability and ductility of nanoscale graphene. However, existing experimentally realized graphene kirigami (GK) are created by introducing parallel cuts, ex ...
College Pk2023APT/TEM characterization of the element segregation in ferritic/martensitic steels after irradiation in SINQ
Ferritic /martensitic (FM) steels are among the most important materials in various nuclear applications. As radiation-induced segregation (RIS) is one of the major factors for embrittlement of nuclear materials, thereofre it is essential to study the RIS ...
EPFL2021In situ characterization of a high work hardening Ti-6Al-4V prepared by electron beam melting
Helena Van Swygenhoven, Nicola Casati
A multi-phase Ti-6Al-4V prepared by electron beam melting and thermal post treatments has been shown to exhibit increased strength and ductility over standard wrought or hot isostatic pressed Ti-6-Al-4V. The mechanical improvements are due to a prolonged, ...
2019Investigations and numerical modeling of mechanical properties of tempered martensitic steel Eurofer97 at various loading rates, temperatures and after spallation irradiation
The reduced activation tempered martensitic steel Eurofer97 is a reference steel for a structural applica-tions in fusion reactors. The first-wall and blanket materials will be subjected to high thermal and neutron fluxes and will experience very complex, ...
EPFL2018Thermal Activation, Intermittency and Size Effects in the Plastic Deformation of Cast Aluminium Microwires
Suzanne Godelieve Alphonsine Verheyden
The microcasting process is a scaled-down investment casting process in which molten metal is pressure-infiltrated and directionally solidified in water-soluble moulds. It was previously developed to produce metallic microwires with a diameter (D) between ...
EPFL2018Hot deformation of a Fe-Mn-Al-C steel susceptible of κ-carbide precipitation
Roland Logé, Oscar Zambrano Zambrano
The mechanical properties of Fe-Mn-Al-C steel are significantly enhanced after κ-carbide precipitation via aging; however, most aging treatments are energy demanding because they require relatively high temperatures and extended holding times. This researc ...
Elsevier Science Sa2017Deformation behavior of nanoporous polycrystalline silver. Part I: Microstructure and mechanical properties
Helena Van Swygenhoven, Steven Van Petegem
This work reports on the microstructure and mechanical properties of porous silver films produced with different sintering parameters. The microstructure is investigated by high-resolution ptychographic Xray computed tomography and scanning electron micros ...
Pergamon-Elsevier Science Ltd2017On the origin of primary 1/2 a(0) and a(0) loops in irradiated Fe(Cr) alloys
Robin Schäublin, Anna Prokhodtseva
The radiation-induced primary dislocation loops in thin foils of ultra-high purity Fe and Fe(Cr) model alloys were investigated using ion irradiation in situ in a TEM. In the '111 mechanism' the induced nanometric loops of type a(0) stem from mutual ...
Pergamon-Elsevier Science Ltd2017Deformation behavior of nanoporous polycrystalline silver layers sintered by low temperature bonding: experiment and simulation
Integrated circuit packaging technology has become a prime design consideration for the develop-ment of electronic system concepts. One key issue is the bonding layer between chip and substrate. Currently, high-lead solder materials are being used, which a ...
EPFL2016Nanocrystalline metals: transient testing during in situ X-ray diffraction and molecular dynamics
Nanocrystalline (NC) metals have attracted widespread interest in materials science due to their high strength compared to coarse-grained counterparts. It is well know that during uniaxial deformation, the stress-strain behaviour exhibits an extraordinary ...
EPFL2016