Results 11 to 20 of about 431,575 (349)
Effect of Mo and Cr on S-Induced Intergranular Fracture in γ-Fe
Metals, 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
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Grain boundary dislocations in plane matching grain boundaries [PDF]
Physica 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
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Journal 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
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Communications Materials, 2023 AbstractAs high-entropy alloys receive an increasing amount of attention, an interesting scientific question arises: can grain boundaries be “high entropy”? In 2016, we proposed “high-entropy grain boundaries” as the grain boundary counterparts to high-entropy materials.
Jian Luo, Naixie Zhou
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New phase-field model for polycrystalline systems with anisotropic grain boundary properties
Materials & 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
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Journal 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
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Grain-boundary topological phase transitions [PDF]
Proceedings of the National Academy of Sciences, 2020 Significance We reveal the existence of a topological phase transition (Kosterlitz–Thouless type) in grain boundaries (GBs)—important internal surfaces in crystalline materials. GB dynamics are controlled by the formation/migration of line defects (disconnections) with dislocation and step character. Below the GB KT transition, disconnections
Kongtao Chen +2 more
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Numerical simulation of grain-size effects on creep crack growth by means of grain elements [PDF]
, 1998 The effect of grain size on creep crack growth is investigated by means of a numerical technique in which the actual crack growth process is simulated in a discrete manner by grain elements and grain boundary elements.
Giessen, E. van der,, Onck, P.R.,
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TEM investigation of YBa2Cu3O7 thin films on SrTiO3 bicrystals [PDF]
, 1994 YBa2Cu3O7 films in c-axis orientation on bicrystalline SrTiO3 substrates are investigated by TEM. The films and the substrates are examined in cross-section and in plane view.
Hilgenkamp, H. +4 more
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Oxygen vacancy segregation and space-charge effects in grain boundaries of dry and hydrated BaZrO3 [PDF]
, 2012 A space-charge model is applied to describe the equilibrium effects of segregation of double-donor oxygen vacancies to grain boundaries in dry and wet acceptor-doped samples of the perovskite oxide BaZrO3.
Adachi M. +3 more
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