Accession Number:

AD1099563

Title:

Phase-Field Simulations of Solidification in Support of Additive Manufacturing Processes

Descriptive Note:

Technical Report

Corporate Author:

ERDC Information Technology Laboratory Vicksburg United States

Report Date:

2020-05-01

Pagination or Media Count:

35.0

Abstract:

For purposes relating to force protection through advancements in multiscale materials modeling, this report explores the use of the phase-field method for simulating microstructure solidification of metallic alloys. Specifically, its utility was examined with respect to a series of increasingly complex solidification problems, ranging from one dimensional, isothermal solidification of pure metals to two-dimensional, directional solidification of non-isothermal, binary alloys. Parametric studies involving variations in thermal gradient, pulling velocity, and anisotropy were also considered, and used to assess the conditions for which dendritic andor columnar microstructures may be generated. In preparation, a systematic derivation of the relevant governing equations is provided along with the prescribed method of solution.

Subject Categories:

  • Operations Research
  • Physical Chemistry
  • Metallurgy and Metallography
  • Printing and Graphic Arts

Distribution Statement:

APPROVED FOR PUBLIC RELEASE