Results 11 to 20 of about 405,384 (300)

The mechanisms of grain growth of Mg alloys: A review

open access: yesJournal of Magnesium and Alloys, 2022
Grain growth directly influences the plasticity and strength of Mg alloys. As the grain size decreases from the microscale to the nanoscale, the plasticity of Mg alloys continually increases, whereas the strength first increases and later decreases ...
Qinghua Chen   +8 more
doaj   +1 more source

Study on deviation distribution of Σ3 and Σ9 boundaries in Hastelloy C-276 superalloy with different hot rolling reductions

open access: yesJournal of Materials Research and Technology, 2023
In this study, the deviation distributions of Σ3 and Σ9 grain boundaries in a Hastelloy C-276 sheet were measured using electron backscatter diffraction technology (EBSD) and the grain boundary plane orientation was analyzed using a five-parameter ...
Shengli Guo   +4 more
doaj   +1 more source

Effect of Mo and Cr on S-Induced Intergranular Fracture in γ-Fe

open access: yesMetals, 2022
S is a common corrosion medium for austenitic stainless steels. The severe intergranular fracture of austenitic stainless steels occurs in sulfur environments.
Si Liu   +8 more
doaj   +1 more source

Quasi-in-situ observation and analysis of grain boundary evolution of GH4169 nickel-based superalloy during the micro-strain stage of thermal deformation

open access: yesJournal of Materials Research and Technology, 2023
A systematic study was conducted to analyze the grain boundary microstructure evolution of GH4169 nickel-based superalloy during the micro-strain stage of thermal deformation.
Min Ling, Yi-Long Liang
doaj   +1 more source

New phase-field model for polycrystalline systems with anisotropic grain boundary properties

open access: yesMaterials & Design, 2022
In this paper, a new methodology is presented to inlude anisotropic grain boundary properties in a phase-field model. The new approach is thermodynamically consistent and gives accurate control of the inclination and misorientation of grain boundary ...
Nele Moelans
doaj   +1 more source

Space–charge theory applied to the grain boundary impedance of proton conducting BaZr0.9Y0.1O3−δ. [PDF]

open access: yes, 2010
The specific grain interior and grain boundary conductivities, obtained from impedance spectroscopy and the brick layer model, are reported for BaZr0.9Y0.1O3−δ as a function of pO2 and temperature. pO2-dependencies were indicative of dominating ionic and
Estournès, Claude   +6 more
core   +1 more source

Statistical Crystal Plasticity Model Advanced for Grain Boundary Sliding Description

open access: yesCrystals, 2020
Grain boundary sliding is an important deformation mechanism, and therefore its description is essential for modeling different technological processes of thermomechanical treatment, in particular the superplasticity forming of metallic materials.
Alexey Shveykin   +2 more
doaj   +1 more source

Grain boundary dislocations in plane matching grain boundaries [PDF]

open access: yesPhysica Status Solidi (a), 1979
Plane matching (PM) boundaries are defined as boundaries in which a single stack of planes of indices (hkl) in each crystal adjoining the boundary is either parallel, or nearly parallel, and where no other significant lattice matching exists. A search was made (by transmission electron microscopy) for possible intrinsic secondary grain boundary ...
Schindler, R.   +2 more
openaire   +3 more sources

Incompatibility Stresses and Lattice Rotations Due to Grain Boundary Sliding in Heterogeneous Anisotropic Elasticity

open access: yesCrystals, 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   +1 more source

Grain-boundary topological superconductor

open access: yesCommunications Physics, 2023
Majorana zero modes (MZMs) are of central importance for modern condensed matter physics and quantum information due to their non-Abelian nature, which thereby offers the possibility of realizing topological quantum bits.
Morten Amundsen, Vladimir Juričić
doaj   +1 more source

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