The effects of inhomogeneities in texture on the mechanical response of a tantalum plate were investigated. Through-thickness compression samples exhibited an hourglass shape after deformation. The compression tests were modeled using a finite-element approach. A polycrystal plasticity model is embedded at each element of the mesh enabling the simulation to account for the spatial distribution of texture and its evolution. The texture was characterized using spatially specific individual lattice orientation measurements. The orientations were measured using automatic analysis of electron backscatter Kikuchi diffraction patterns. The influence of the spatially nonuniform distribution of texture on the experimental and simulated results is discussed. This work demonstrates the capability of currently available tools for characterizing inhomegeneous microstructures and modeling the effects of variations in texture on mechanical behavior.
|Original language||English (US)|
|Number of pages||6|
|Journal||Materials Science Forum|
|Issue number||pt 2|
|State||Published - 1994|
ASJC Scopus subject areas
- Materials Science(all)