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Showing 1 to 7 of 7 for “"Alloy 718"”.
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Hydrogen embrittlement testing of alloy 718 for oil and gas applications
… embrittlement of Ni-base corrosion resistant alloys (CRAs) can occur in deep sea oil wells when components are exposed to hydrogen while under stress. The effects of microstructure on hydrogen embrittlement of precipitation hardened Ni-base CRAs, such as alloy 718, are not fully understood. …
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Influence of ingot heterogeneity upon hot deformation of alloy 718, The
Includes bibliographical references.
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Development of Simultaneous Transformation Kinetics Microstructure Model with Application to Laser Metal Deposited Ti-6Al-4V and Alloy 718
… of a material model for Ti-6Al-4V and Alloy 718. These two alloys are heavily used in turbine engines and undergo complex phase transformations, making them suited to developing a material model for laser metal deposition (LMD). The model uses simultaneous transformation kinetics (STK) …
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Surface modification of ceramic and metallic alloy substrates by laser raster-scanning
… powder precursor grown from polycrystalline Alloy 718 substrates. A heat transfer model was developed to illustrate that the aspect ratio of the laser scanned pattern and the density of scanning lines play a significant role in determining peak surface temperature, heating and cooling rates …
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Avaliação mecânica e microestrutural pós forjamento da liga de níquel 718 com adição de ítrio
… microstructural and mechanical properties of the alloy 718 was examined by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD) and tensile tests. Two alloys with nominal yttrium contents of 0.1% and 1% in weight and a reference alloy with no yttrium …
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Carbide formation in a nickel-based superalloy during electron beam solid freeform fabrication
… and safe use of certain nickel-base superalloy parts, notably turbine disks. The growth of carbide particles from the liquid during EBSFF processing of Alloy 718 has been modeled assuming diffusion control and isolated spherical carbides. The driving force for growth is assumed to increase …