Texture gradient effects in tantalum

S. I. Wright, Armand Joseph Beaudoin, G. T. Gray

Research output: Contribution to journalArticlepeer-review

Abstract

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 languageEnglish (US)
Pages (from-to)1695-1700
Number of pages6
JournalMaterials Science Forum
Volume157-6
Issue numberpt 2
StatePublished - 1994
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)

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