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Thermophysical property sensitivity effects in steel solidification
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Overfelt, Tony |
| Copyright Year | 1993 |
| Description | The simulation of advanced solidification processes via digital computer techniques has gained widespread acceptance during the last decade or so. Models today can predict transient temperature fields, fluid flow fields, important microstructural parameters, and potential defects in castings. However, the lack of accurate thermophysical property data on important industrial alloys threatens to limit the ability of manufacturers to fully capitalize on the technology's benefits. A study of the sensitivity of one such numerical model of a steel plate casting to imposed variations in the data utilized for the thermal conductivity, specific heat, density, and heat of fusion is described. The sensitivity of the data's variability is characterized by its effects on the net solidification time of various points along the centerline of the plate casting. Recommendations for property measurements are given and the implications of data uncertainty for modelers are discussed. |
| File Size | 502835 |
| Page Count | 16 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19940020640 |
| Archival Resource Key | ark:/13960/t4cp21h3j |
| Language | English |
| Publisher Date | 1993-11-01 |
| Access Restriction | Open |
| Subject Keyword | Metallic Materials Temperature Distribution Crystal Defects Castings Heat of Fusion Solidification Specific Heat Metal Plates Flow Distribution Thermal Conductivity Mathematical Models Steels Microstructure Thermophysical Properties Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
