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Keywords: strength of a grain boundary
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Proceedings Papers
Proc. ASME. IMECE2022, Volume 9: Mechanics of Solids, Structures, and Fluids; Micro- and Nano-Systems Engineering and Packaging; Safety Engineering, Risk, and Reliability Analysis; Research Posters, V009T12A038, October 30–November 3, 2022
Paper No: IMECE2022-94891
... of the damage accumulation decreased locally with the large strain around the cracked grain boundaries. The local activation energy was confirmed to be more than 30% lower than that obtained under the thermodynamically stable condition. strength of a grain boundary degradation of crystallinity EBSD...
Proceedings Papers
Proc. ASME. IMECE2021, Volume 12: Mechanics of Solids, Structures, and Fluids; Micro- and Nano- Systems Engineering and Packaging, V012T12A053, November 1–5, 2021
Paper No: IMECE2021-70628
...Proceedings of the ASME 2021 International Mechanical Engineering Congress and Exposition IMECE2021 November 1-5, 2021, Virtual, Online IMECE2021-70628 MOLECULAR DYNAMICS ANALYSIS OF THE ACCELERATION OF THE DEGRADATION OF THE STRENGTH OF A GRAIN BOUNDARY UNDER CREEP-FATIGUE LOADS Shujiroh Suzuki...
Proceedings Papers
Proc. ASME. IMECE2021, Volume 12: Mechanics of Solids, Structures, and Fluids; Micro- and Nano- Systems Engineering and Packaging, V012T12A051, November 1–5, 2021
Paper No: IMECE2021-68489
...Abstract Abstract Degradation mechanism of the strength of a grain boundary in Ni-base superalloy under creep-fatigue loading at elevated temperature was investigated by using the modified Arrhenius equation, which explained the stress-induced acceleration of the local generation and diffusion...
Proceedings Papers
Proc. ASME. IMECE2020, Volume 12: Mechanics of Solids, Structures, and Fluids, V012T12A059, November 16–19, 2020
Paper No: IMECE2020-23352
... creep-fatigue loading was successfully clarified by MD analysis. strength of a grain boundary Ni-base superalloy creep-fatigue damage molecular dynamics Molecular Dynamics Analysis of the Acceleration of Intergranular Cracking of Ni-base Superalloy Caused by Accumulation of Vacancies...
Proceedings Papers
Proc. ASME. IMECE2020, Volume 12: Mechanics of Solids, Structures, and Fluids, V012T12A071, November 16–19, 2020
Paper No: IMECE2020-24473
...Abstract Abstract The degradation of the strength of a grain boundary was measured by using a micro tensile test in a scanning electron microscope. The change of the crystallinity of grain boundaries during creep-fatigue tests of Ni-base alloy such as Alloy 617 and 625 at elevated temperatures...
Proceedings Papers
Proc. ASME. IMECE2020, Volume 13: Micro- and Nano-Systems Engineering and Packaging, V013T13A004, November 16–19, 2020
Paper No: IMECE2020-23757
... dominated by the strength of grain boundaries because final fracture caused by the acceleration of atomic diffusion during electromigration (EM) occurs at grain boundaries in polycrystalline interconnections. It is important, therefore, to quantitatively evaluate the grain boundary strength of electroplated...
Proceedings Papers
Proc. ASME. IMECE2019, Volume 9: Mechanics of Solids, Structures, and Fluids, V009T11A057, November 11–14, 2019
Paper No: IMECE2019-11210
... in damaged specimen was drastically degraded compared to that of the initial specimen. Intergranular cracks always occurred when the IQ value decreased to a certain value. Therefore, there is a correlation between the IQ value and the strength of a grain boundary in this alloy. The decrease of the IQ value...
