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Title:	Phase-field simulations of solidification in support of additive manufacturing processes
Authors:	Allen, Jeffrey B. Moser, Robert D. McClelland, Zackery B. Kallivayalil, Jacob. Tekalur, Arjun.
Keywords:	Materials--Technological innovations Manufacturing processes Alloys--Microstructure Solidification Materials--Mathematical models Materials--Mathematical modeling
Publisher:	Information Technology Laboratory (U.S.) Geotechnical and Structures Laboratory (U.S.) Engineer Research and Development Center (U.S.)
Series/Report no.:	Technical Report (Engineer Research and Development Center (U.S.)) ; no. ERDC TR-20-6
Abstract:	For purposes relating to force protection through advancments 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 and/or columnar microstructures may be generated. In preparation, a systematic derivation of the relevant governing equations is provided along with the prescribed method of solution.
Description:	Technical Report
Gov't Doc #:	ERDC TR-20-6
Rights:	Approved for Public Release; Distribution is Unlimited
URI:	https://hdl.handle.net/11681/36654 http://dx.doi.org/10.21079/11681/36654
Size:	35 pages / 3.03 MB
Types of Materials:	PDF
Appears in Collections:	Technical Report