5 papers · 1 filter
Tensile behavior of stainless steel 304L to Ni-20Cr functionally graded material: experimental characterization and computational simulations
Lourdes D. Bobbio, Brandon Bocklund, Zi-Kui Liu +1
This study presents experimental and computational analyses of the phase composition and mechanical behavior of a functionally graded material (FGM) grading from 100 vol% 304L stai…
Sensitivity estimation for calculated phase equilibria
Richard Otis, Brandon Bocklund, Zi-Kui Liu
The development of a consistent framework for Calphad model sensitivity is necessary for the rational reduction of uncertainty via new models and experiments. In the present work,…
Scheil-Gulliver simulations for the design of functionally graded alloys by additive manufacturing using pycalphad
Brandon Bocklund, Lourdes D. Bobbio, Richard A. Otis +2
Additive manufacturing (AM), through directed energy deposition, supports planned composition changes between locations within a single component, allowing for functionally graded…
ESPEI for efficient thermodynamic database development, modification, and uncertainty quantification: application to Cu-Mg
Brandon Bocklund, Richard Otis, Aleksei Egorov +3
The software package ESPEI has been developed for efficient evaluation of thermodynamic model parameters within the CALPHAD method. ESPEI uses a linear fitting strategy to paramete…
Quantified Uncertainty in Thermodynamic Modeling for Materials Design
Noah H Paulson, Brandon J Bocklund, Richard A Otis +2
Phase fractions, compositions and energies of the stable phases as a function of macroscopic composition, temperature, and pressure (X-T-P) are the principle correlations needed fo…