Results 11 to 20 of about 6,691 (300)
Crystals, 2017 Non-uniform grain boundary sliding can induce strain and rotation incompatibilities at perfectly planar interfaces. Explicit analytic expressions of stress and lattice rotation jumps are thus derived at a planar interface in the general framework of ...
Thiebaud Richeton
doaj +3 more sources
Le Journal de Physique Colloques, 1987 It is well known that grain boundary processes - intercrystalline sliding and grain boundary migration - make an important contribution to high temperature deformation of polycrystalline materials, particularly for metals. More recently, these processes have been correlated with the atomic structure of the boundaries.
Ignat, M., Frost, H.
openaire +3 more sources
AbstractDuring plastic deformation at elevated temperatures, grains move relative to each other which is referred to as grain boundary sliding (GBS). The amount of GBS is proportional to the creep strain with a proportionality constant that is known from finite element analyses, and found to agree with experiments for Cu.
Sandström, Rolf,
openaire +2 more sources
Spin Polarization of Mn Could Enhance Grain Boundary Sliding in Mg. [PDF]
Materials (Basel), 2022 Segregation of rare earth alloying elements are known to segregate to grain boundaries in Mg and suppress grain boundary sliding via strong chemical bonds.
Wang V +4 more
europepmc +2 more sources
Revealing Grain Boundary Sliding from Textures of a Deformed Nanocrystalline Pd-Au Alloy. [PDF]
Materials (Basel), 2018 Employing a recent modeling scheme for grain boundary sliding [Zhao et al. Adv. Eng. Mater. 2017, doi:10.1002/adem.201700212], crystallographic textures were simulated for nanocrystalline fcc metals deformed in shear compression.
Toth LS +5 more
europepmc +3 more sources
, 2015 Grain boundary sliding is an important deformation mechanism that contributes to creep and superplastic forming. In tin-based lead-free solders grain boundary sliding can make significant contributions to in service performance.
Gong, Jicheng +6 more
core +4 more sources
Micromechanics of creep fracture: simulation of intergranular crack growth [PDF]
, 1998 A computational model is presented to analyze intergranular creep crack growth in a polycrystalline aggregate in a discrete manner and based directly on the underlying physical micromechanisms.
Giessen, Erik van der, +4 more
core +1 more source
Densification and preservation of ceramic nanocrystalline character by spark plasma sintering [PDF]
, 2012 Spark plasma sintering is a hot pressing technique where rapid heating by dc electric pulses is used simultaneously with applied pressure. Thus, spark plasma sintering is highly suitable for rapid densification of ceramic nanoparticles and preservation ...
Estournès, Claude +7 more
core +1 more source
Grain Boundary Relaxation in Bi-Crystals: Mechanical Spectroscopy and Molecular Dynamics Simulations
Archives of Metallurgy and Materials, 2015 Different Au-Ag-Cu samples have been studied by mechanical spectroscopy. Both polycrystals and bi-crystals show a relaxation peak at 800 K, accompanied by an elastic modulus change.
Maier A.-K. +3 more
doaj +1 more source
Metals, 2022 Shear-coupled grain boundary motion (SCGBM) is an important mechanism of plastic deformation, especially in the cases of ultrafine-grained or nanocrystalline materials at low temperatures.
Zhiwen Bai +3 more
doaj +1 more source