Tags: metals

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  1. Nanocluster Irradiation Evolution Predictor

    20 May 2017 |

    Predict size evolution of solute nanoclusters in metallic alloys under irradiation.

  2. Shape Memory Alloys: Materials that Remember

    28 Jan 2020 | | Contributor(s):: Nancy Healy, Gary Harris, NNCI Nano

    Students learn about a class of materials called shape memory alloys. In particular, they will explore the properties of  nitinol a shpae memory alloy. They will explore how nitinol behaves at different temperatures  and what applications these materials are used for.

  3. Exploring Factors Effecting Deposition, Morphology, and Thickness of Thin Metallic Layer of Copper

    08 Jan 2020 | | Contributor(s):: Berkil Alexander, NNCI Nano

    Students will create thin layers of copper and nickel in an electrochemical reaction to understand how an electric current passed through an ionic solution will result in a chemical reaction which will separate materials.

  4. Radiation in Hall–Héroult Cell Aluminum Smelting

    29 Aug 2019 | | Contributor(s):: Adam Powell

    Estimate heat flux from the graphite anode of a Hall-Heroult cell for smelting aluminum, and discuss uniformity of temperature across the anode.

  5. Floating Bubbles Out of Molten Glass

    21 Aug 2019 | | Contributor(s):: Adam Powell

    Balance drag and buoyancy forces to determine the size of the largest bubble remaining in a container of molten glass after a certain amount of time.

  6. Nitriding of an Iron Thin Film

    19 Aug 2019 | | Contributor(s):: Adam Powell

    Calculate nitrogen concentration profile during diffusion into a finite thin film of iron using error function and Fourier series solutions.

  7. Iron Oxidation

    19 Aug 2019 | | Contributor(s):: Adam Powell

    During iron oxidation, calculate the oxide layer thickness over time, and compare to the case with 1% titanium added.

  8. Radiation in Electrostatic Levitation

    15 Aug 2019 | | Contributor(s):: Adam Powell

    Calculate total power radiated between square plates and a levitated spherical droplet, and discuss heat conduction mechanisms in the droplet.

  9. Multicomponent Evaporation I: Evaporation of Volatile Impurities During Electron Beam Melting

    14 Aug 2019 | | Contributor(s):: Adam Powell

    Calculate conversion efficiency for electron beam melting for removal of lead, cadmium and zinc impurities from titanium.

  10. Multicomponent Evaporation II: Evaporation of Alloying Elements from Titanium

    14 Aug 2019 | | Contributor(s):: Adam Powell

    Evaluate effects of differential evaporation of titanium and its alloying elements aluminum and vanadium on electron beam melting and evaporation processes.

  11. Decarburization of Solid Low-Carbon Steel

    01 Aug 2019 | | Contributor(s):: Adam Powell

    Calculate carbon concentration profile vs. time in low-carbon steel sheet in a decarburizing atmosphere at high Biot number.

  12. Application of Integral Analysis to Semi-infinite Diffusion Couple

    01 Aug 2019 | | Contributor(s):: Matthew John M. Krane

    Apply integral analysis to semi-infinite diffusion couple.

  13. Continuous Casting Hydrostatics

    28 May 2019 | | Contributor(s):: Matthew John M. Krane

    A mixture of hydrostatics and the modified Bernoulli equation are used to determine the effect of fluid height in a tundish on the flow rate supplying liquid steel to a continuous casting mold.

  14. Freezing by Radiation and Convection

    16 May 2019 | | Contributor(s):: Adam Powell

    Use radiation and a heat transfer coefficient to estimate the initial rate of solidification of the solid shell at the top of a casting while the temperature in the shell can be considered uniform, then set up the equation for mixed conduction/convection-radiation limited cooling.

  15. Heat Conduction and Diffusion in Alloy Casting

    16 May 2019 | | Contributor(s):: Adam Powell

    Derive temperature and liquid concentration profiles during die casting of a roughly plate-shaped alloy part.

  16. Electron Beam Centrifugal Atomization of Metal

    16 May 2019 | | Contributor(s):: Adam Powell

    Use a heat balance to calculate electron beam power required to continuously heat and melt metal as it is atomized, including heat losses from the top surface due to evaporation and radiation.

  17. Radiative Cooling of an Aluminum Cube

    09 Apr 2019 | | Contributor(s):: Adam Powell

    Show that radiative cooling of an aluminum cube is Newtonian (uniform temperature), and calculate time required to cool through a certain temperature range by radiation alone.

  18. Bottom Filled Mold

    07 Apr 2019 | | Contributor(s):: Matthew John M. Krane

    Calculation of mold filling times, with and without a constant height of metal in a riser. Problem uses modified Bernoulli equation for the mechanical energy balance and the students are asked to determine which resistances are significant.

  19. Cast-a-Box: Casting Conditions and Macroporosity

    07 Apr 2019 | | Contributor(s):: Adam Powell

    An illustration of three-dimensional finite difference simulation of heat conduction with phase change and complex boundary conditions, this requires students to adjust boundary conditions to make the top surface of a regular hexahedral "casting" to freeze last, eliminating...

  20. Application of Integral Analysis to Semi-infinite Diffusion Couple

    20 Mar 2019 | | Contributor(s):: Matthew John M. Krane

    Apply integral analysis to semi-infinite diffusion couple.