Development of local microstructure and crystallographic texture in extruded Zr-2.5Nb tubes

Download
  1. Get@NRC: Development of local microstructure and crystallographic texture in extruded Zr-2.5Nb tubes (Opens in a new window)
DOIResolve DOI: http://doi.org/10.1016/j.msea.2006.04.048
AuthorSearch for: ; Search for: ; Search for:
TypeArticle
Journal titleMaterials science and engineering
Volume437
Issue1
Pages1020; # of pages: 11
SubjectCrystallographic texture; Microstructure; Spacial variations; Zr-2.5Nb
AbstractWe report the bulk and local crystallographic texture determined by neutron diffraction in Zr-2.5Nb tubes extruded in the [alpha]?+?[beta] and the [beta]-phase fields. Bulk textures and through-wall variations were determined using neutron diffraction. We correlate these with microstructures determined by transmission electron microscopy. With a preheat temperature of 925?K where the material is ~90% [alpha]-phase, the basal plane are distributed between radial (R) and transverse (T) directions with a small bias towards the T direction. End-to-end, and through-wall variation depends upon the prior microstructure of the billet and the balance between adiabatic heating and chilling. With a preheat temperature of 1090?K, where the material is ~60% [alpha], the basal plane normals are predominantly transverse, more so on the internal diameter, because of the extrusion geometry. With a preheat temperature of 975??C, there is a strong axial component of texture at the front end of the tube, associated with the [beta]- to [alpha]-phase transformation. This component is more pronounced at the core because of chilling of the billet. At the back end of the extrusion the texture is very similar to that produced after preheating at 815??C indicating that the back of the billet was substantially transformed by the time that it entered the die.
Publication date
Peer reviewedNo
NRC publication
This is a non-NRC publication

"Non-NRC publications" are publications authored by NRC employees prior to their employment by NRC.

NPARC number12327449
Export citationExport as RIS
Report a correctionReport a correction
Record identifier6435f9f1-bd0e-4062-ade5-0de8b7bcb21b
Record created2009-09-10
Record modified2016-05-09
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)