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  1. No Access

    Article

    Alpha case thickness modeling in investment castings

    The alpha case thickness at the surface of a Ti-6Al-4V (wt pct) step wedge investment casting has been measured and successfully predicted. The prediction uses temperature-time results obtained from a heat flo...

    W. J. Boettinger, M. E. Williams… in Metallurgical and Materials Transactions B (2000)

  2. Article

    Diffusion in FCC Co-rich Co-Al-W Alloys at 900 and 1000 °C

    Diffusion couple experiments between various Co-rich face centered cubic (FCC) alloys in the Co-W-Al ternary system have been conducted at 900 and 1000 °C. Diffusion coefficients have been extracted for the Co...

    K. -W. Moon, C. E. Campbell, M. E. Williams… in Journal of Phase Equilibria and Diffusion (2016)

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  3. No Access

    Article

    Interdiffusion in the Ni-Re System: Evaluation of Uncertainties

    Diffusion couple experiments between Ni and Re at 1200 and 1350 °C were performed. These experiments established the limits of the two-phase FCC + HCP region. No intermediate phase was observed at these temper...

    W. J. Boettinger, M. E. Williams, K.-W. Moon… in Journal of Phase Equilibria and Diffusion (2017)

  4. Article

    The Influence of Annealing Temperature and Time on the Formation of δ-Phase in Additively-Manufactured Inconel 625

    This research evaluated the kinetics of δ-phase growth in laser powder bed additively-manufactured (AM) Inconel 625 during post-build stress-relief heat treatments. The temperatures ranged between 650 °C and 1050...

    M. R. Stoudt, E. A. Lass, D. S. Ng… in Metallurgical and Materials Transactions A (2018)

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  5. No Access

    Article

    Solidification of Ni-Re Peritectic Alloys

    Differential thermal analysis (DTA) and microstructural and microprobe measurements of DTA and as-cast Ni-Re alloys with compositions between 0.20 and 0.44 mass fraction Re provide information to resolve diffe...

    W. J. Boettinger, D. E. Newbury… in Metallurgical and Materials Transactions A (2019)

  6. No Access

    Article

    Location-Specific Microstructure Characterization Within IN625 Additive Manufacturing Benchmark Test Artifacts

    Additive manufacturing (AM) of alloys creates segregated microstructures with significant differences from those of traditional wrought alloys. Understanding how the local build conditions generate specific mi...

    M. R. Stoudt, M. E. Williams, L. E. Levine… in Integrating Materials and Manufacturing In… (2020)

  7. Article

    Open Access

    Location-Specific Microstructure Characterization Within AM Bench 2022 Laser Tracks on Bare Nickel Alloy 718 Plates

    Additive manufacturing of metal alloys produces microstructures that are typically very different from those produced by more traditional manufacturing approaches. Computer simulations are useful for connectin...

    L. E. Levine, M. E. Williams, M. R. Stoudt… in Integrating Materials and Manufacturing In… (2024)

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