Molecular dynamics study of fatigue mechanical properties and microstructural evolution of Ni-based single crystal superalloys under cyclic loading
Sign Up to like & getrecommendations! Published in 2020 at "Computational Materials Science"
DOI: 10.1016/j.commatsci.2020.109954
Abstract: Abstract The fatigue performance and deformation mechanism of Ni-based single crystal superalloys under cyclic tension–compression loading are studied by molecular dynamics simulations. The effects of temperature and strain rate on the cyclic deformation of superalloys… read more here.
Keywords: superalloys cyclic; molecular dynamics; single crystal; deformation ... See more keywords
Role of volatilization of molybdenum oxides during the cyclic oxidation of high-Mo containing Ni-based single crystal superalloys
Sign Up to like & getrecommendations! Published in 2017 at "Corrosion Science"
DOI: 10.1016/j.corsci.2017.08.025
Abstract: Abstract The cyclic oxidation behavior of two high-Mo containing Ni-based single crystal superalloys with different Al contents at 1100 °C has been investigated. The higher formation tendency of the continuous and dense α-Al 2 O 3… read more here.
Keywords: cyclic oxidation; single crystal; high containing; crystal superalloys ... See more keywords
Different roles of stacking fault energy and diffusivity in the creep performance of nickel-based single-crystal superalloys
Sign Up to like & getrecommendations! Published in 2021 at "Materials Research Express"
DOI: 10.1088/2053-1591/abeb88
Abstract: Two nickel-based single-crystal (SC) superalloys (designated T6 and T13) were investigated in order to reveal the effects of stacking fault (SF) energy and diffusion on their high-temperature creep behavior. In this study, the effect of… read more here.
Keywords: nickel based; energy; single crystal; dislocation ... See more keywords
Statistical study of the primary-dendrite spacings in single-crystal superalloys
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DOI: 10.17222/mit.2020.161
Abstract: Three generations of single-crystal superalloys (AM3, DD5 and DD90) were produced with directional solidification and seeding. The square-calculation method and direct-measurement method were used to study the primary-dendrite spacings of the three single-crystal superalloys at… read more here.
Keywords: primary dendrite; single crystal; method; dendrite spacings ... See more keywords
Investigation of Start Block and Corresponding Influence for Grain Selection during Casting of Single-Crystal Superalloys
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DOI: 10.3390/ma12101717
Abstract: To figure out the impact of the parameters of a starter block (the diameter D and height H) on grain selection and the selecting mechanism, a spiral selector was measured with optical microscopy (OM) and… read more here.
Keywords: crystal superalloys; single crystal; block; grain selection ... See more keywords
A 3D Analysis of Dendritic Solidification and Mosaicity in Ni-Based Single Crystal Superalloys
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DOI: 10.3390/ma14174904
Abstract: Ni-based single crystal superalloys contain microstructural regions that are separated by low-angle grain boundaries. This gives rise to the phenomenon of mosaicity. In the literature, this type of defect has been associated with the deformation… read more here.
Keywords: single crystal; solidification; crystal superalloys; mosaicity ... See more keywords