Publication
Tensile and creep-rupture response of additively manufactured nickel-based superalloy CM247LC
Publications associées (32)
Vacancy segregation and intrinsic coordination defects at (111) twist grain boundaries in diamond
Carolina Baruffi, Christian Brandl
High radiation damage resistance has become increasingly important for applications of functional materials in harsh environments. The high radiation damage resistance diamond cubic carbon is a unique material which is considered for radiation environments ...
Oxford2023Abnormal Grain Growth in AlScN Thin Films Induced by Complexion Formation at Crystallite Interfaces
Paul Muralt, Ramin Matloub Aghdam, Silviu Cosmin Sandu, Stefan Mertin, Mohammad Fazel Parsapour Kolour, Vladimir Pashchenko
Sputter deposited Al(1-x)ScxN thin films with a Sc content from x = 0 to 43 at% are investigated by electron microscopy in order to study and explain the formation and growth of abnormally oriented grains (AOG). It is found that the latter did not nucleate ...
WILEY-V C H VERLAG GMBH2019Micro-mechanics of 3D architectured metals synthesized by electrodeposition
Maxime Alain Baptiste Mieszala
Cellular metallic materials have emerged as a new promising class of materials due to their lightweight porous structures and advanced multi-functional properties. Originally limited to random metallic foams, modern lithography techniques have enabled the ...
EPFL2018Competition between intragranular and intergranular deformation mechanisms in ODS ferritic steels during hot deformation at high strain rate
Oxide Dispersed Strengthened (ODS) ferritic stainless steels present well-known fine grains microstructures where dislocation movement is hindered by a dense precipitation of nano-oxides particles. Previous research, on the thermomechanical behavior at hig ...
Springer Verlag2017Effect of volume fractions on microstructure evolution in isotropic volume-conserved two-phase alloys: A phase-field study
A detailed investigation was carried out to study the effect of volume fraction on microstructure evolution in segregation-free isotropic volume-conserved two-phase alloys. Large scale two-dimensional (2D) and three-dimensional (3D) simulations were perfor ...
Elsevier Science Bv2016Grain boundary complexion and transparent polycrystalline alumina from an atomistic simulation perspective
Transparent alumina is often processed with sintering additives such as, Y, La, and Mg, in order to limit its grain growth at high sintering temperatures. Usually, these additives segregate to the grain boundaries due to their larger cationic size than Al ...
Elsevier2016Microstructural characterizations of 14Cr ODS ferritic steels subjected to hot torsion
Oxide dispersion strengthened (ODS) steels are very promising materials for nuclear applications. In thispaper, the hot working behavior of ODS ferritic steels, consolidated by hot extrusion, is studied through torsion tests. Three ODS steels are produced ...
Elsevier2015Strain induced abnormal grain growth in nickel base superalloys
Under certain circumstances abnormal grain growth occurs in Nickel base superalloys during thermomechanical forming. Second phase particles are involved in the phenomenon, since they obviously do not hinder the motion of some boundaries, but the key parame ...
2013High Temperature Behavior of Nano-Structured Ceramic Composites Studied by Mechanical Spectroscopy
Silicon nitride based ceramics (SiAlONs); tetragonal polycrystalline zirconia (3Y‐TZP); alumina and their composites reinforced with different amount of multi‐ walled carbon‐nanotubes (CNTs) have been processed by Spark Plasma Sintering (SPS). High tempera ...
EPFL2013Recrystallization and grain boundary formation in an 18-carat gold alloy studied by mechanical spectroscopy
Daniele Mari, Robert Schaller, Iva Tkalcec Vâju
Heavily deformed 18-carat yellow gold samples show a recrystallization peak at 700 K during the first heating. The mechanical loss spectrum of polycrystals shows a relaxation peak at about 780 K, which is absent in single crystals made from the same alloy. ...
Trans Tech Publications Ltd2013