Atlas of Formability: Ultimet
Abstract
In this investigation, flow behavior of Ultimet alloy was studied by conducting compression tests over a wide range of temperatures (950-1200 C) and strain rates (0.001-20/s). The true stress-true strain flow curves are presented for each test condition. Constitutive relations were determined from the flow behavior, and a dynamic material modeling was performed on this material. Thus, the optimum processing condition in terms of temperature and strain rate was identified as 1012 C and 0.001/s for this alloy. Workability of the material as a function of strain rate and temperature was also determined. Microstructural changes during high temperature deformation were characterized, and selective micrographs are presented together with corresponding flow curves. Dynamic recrystallization and grain growth occurred during high temperature deformation in some test conditions. This report supplies ample mechanical and microstructural data on Ultimet alloy for engineers in the field of metalworking process design.... Ultimet Alloy, Deformation Processing, High Temperature Deformation, Processing Map, Metalworking, Deformed Microstructure.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 24, 1993
- Accession Number
- ADA268352