The grain boundary character distribution of a fully-orthorhombic Ti-25al-24Nb(at.%) alloy

Dingqiang Li, S. I. Wright, C. J. Boehlert

Research output: Contribution to journalArticle

  • 11 Citations

Abstract

The grain boundary character distribution (GBCD) of a fully-orthorhombic (O) Ti-25Al-24Nb (at.%) microstructure was investigated using electron backscatter diffraction (EBSD). The fine-grained (GS=17 μm) equiaxed microstructure was processed by hot forging and hot-rolling operations performed below the body-centered cubic (bcc) phase transus temperature followed by heat treatment in the O-phase field at 875°C. Nearly all the O/O grain boundaries were greater than 15 degrees misoriented and such boundaries exhibited the highest frequencies at misorientations of approximately 65° (∼26% of all grain boundaries) and 90° (∼10% of all grain boundaries). Twin-related O-phase variant interfacial (110) planes were identified and such boundaries represented 39% of all the O/O grain boundaries with 65° misorientation about [001].

Original languageEnglish (US)
Pages (from-to)545-550
Number of pages6
JournalScripta Materialia
Volume51
Issue number6
DOIs
StatePublished - Sep 2004
Externally publishedYes

Profile

grain boundaries
Grain boundaries
misalignment
microstructure
Microstructure
forging
heat treatment
diffraction
electrons
temperature
Acetanilides
Lactation Disorders
Forging
Electron diffraction
Heat treatment
Hot rolling
Temperature

Keywords

  • EBSD
  • Grain boundary character distribution
  • Grain boundary twin
  • Misorientation
  • Titanium alloy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Science(all)
  • Metals and Alloys

Cite this

The grain boundary character distribution of a fully-orthorhombic Ti-25al-24Nb(at.%) alloy. / Li, Dingqiang; Wright, S. I.; Boehlert, C. J.

In: Scripta Materialia, Vol. 51, No. 6, 09.2004, p. 545-550.

Research output: Contribution to journalArticle

Li, Dingqiang; Wright, S. I.; Boehlert, C. J. / The grain boundary character distribution of a fully-orthorhombic Ti-25al-24Nb(at.%) alloy.

In: Scripta Materialia, Vol. 51, No. 6, 09.2004, p. 545-550.

Research output: Contribution to journalArticle

@article{ee400641b8c34042900c28d5fd825cc2,
title = "The grain boundary character distribution of a fully-orthorhombic Ti-25al-24Nb(at.%) alloy",
abstract = "The grain boundary character distribution (GBCD) of a fully-orthorhombic (O) Ti-25Al-24Nb (at.%) microstructure was investigated using electron backscatter diffraction (EBSD). The fine-grained (GS=17 μm) equiaxed microstructure was processed by hot forging and hot-rolling operations performed below the body-centered cubic (bcc) phase transus temperature followed by heat treatment in the O-phase field at 875°C. Nearly all the O/O grain boundaries were greater than 15 degrees misoriented and such boundaries exhibited the highest frequencies at misorientations of approximately 65° (∼26% of all grain boundaries) and 90° (∼10% of all grain boundaries). Twin-related O-phase variant interfacial (110) planes were identified and such boundaries represented 39% of all the O/O grain boundaries with 65° misorientation about [001].",
keywords = "EBSD, Grain boundary character distribution, Grain boundary twin, Misorientation, Titanium alloy",
author = "Dingqiang Li and Wright, {S. I.} and Boehlert, {C. J.}",
year = "2004",
month = "9",
doi = "10.1016/j.scriptamat.2004.05.045",
volume = "51",
pages = "545--550",
journal = "Scripta Materialia",
issn = "1359-6462",
publisher = "Elsevier Limited",
number = "6",

}

TY - JOUR

T1 - The grain boundary character distribution of a fully-orthorhombic Ti-25al-24Nb(at.%) alloy

AU - Li,Dingqiang

AU - Wright,S. I.

AU - Boehlert,C. J.

PY - 2004/9

Y1 - 2004/9

N2 - The grain boundary character distribution (GBCD) of a fully-orthorhombic (O) Ti-25Al-24Nb (at.%) microstructure was investigated using electron backscatter diffraction (EBSD). The fine-grained (GS=17 μm) equiaxed microstructure was processed by hot forging and hot-rolling operations performed below the body-centered cubic (bcc) phase transus temperature followed by heat treatment in the O-phase field at 875°C. Nearly all the O/O grain boundaries were greater than 15 degrees misoriented and such boundaries exhibited the highest frequencies at misorientations of approximately 65° (∼26% of all grain boundaries) and 90° (∼10% of all grain boundaries). Twin-related O-phase variant interfacial (110) planes were identified and such boundaries represented 39% of all the O/O grain boundaries with 65° misorientation about [001].

AB - The grain boundary character distribution (GBCD) of a fully-orthorhombic (O) Ti-25Al-24Nb (at.%) microstructure was investigated using electron backscatter diffraction (EBSD). The fine-grained (GS=17 μm) equiaxed microstructure was processed by hot forging and hot-rolling operations performed below the body-centered cubic (bcc) phase transus temperature followed by heat treatment in the O-phase field at 875°C. Nearly all the O/O grain boundaries were greater than 15 degrees misoriented and such boundaries exhibited the highest frequencies at misorientations of approximately 65° (∼26% of all grain boundaries) and 90° (∼10% of all grain boundaries). Twin-related O-phase variant interfacial (110) planes were identified and such boundaries represented 39% of all the O/O grain boundaries with 65° misorientation about [001].

KW - EBSD

KW - Grain boundary character distribution

KW - Grain boundary twin

KW - Misorientation

KW - Titanium alloy

UR - http://www.scopus.com/inward/record.url?scp=3042737271&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=3042737271&partnerID=8YFLogxK

U2 - 10.1016/j.scriptamat.2004.05.045

DO - 10.1016/j.scriptamat.2004.05.045

M3 - Article

VL - 51

SP - 545

EP - 550

JO - Scripta Materialia

T2 - Scripta Materialia

JF - Scripta Materialia

SN - 1359-6462

IS - 6

ER -