Textural inhomogeneities in drawn and annealed OFHC copper wire

Daudi R. Waryoba, Peter N. Kalu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations


Textural inhomogeneities have been investigated in oxygen free high conducting (OFHC) copper wire drawn at room temperature to a true strain of 2.31, and isothermally annealed at 250°C and 750°C for annealing times ranging from 10 s to 1 hr. Local orientations were mapped by means of orientation imaging microscopy (OIM). The microtexture of the drawn wires showed a strong 〈111〉 + weak 〈100〉 duplex fiber texture at the inner core, whereas the mid and surface regions had a comparatively weak texture. Annealing at 250°C resulted into a recrystallization which originated from the mid section, proceed towards the surface regions and ends in the inner core. Recrystallization resulted into a strong〈100〉 +weak〈111〉 duplex fiber texture. A similar textural inhomogeneity was observed during short annealing at 750°C. However, prolonged annealing gave rise to abnormal grain-growth that proceed from the inner core to the outer surfaces with a dominant 〈111〉 fiber component at the inner region and mixed components of〈111〉, 〈100〉, and 〈112〉 at the outer surfaces.

Original languageEnglish (US)
Title of host publicationEPD Congress 2005 - Proceedings of Sessions and Symposia Sponsored by the Extraction and Processing Division of The Minerals, Metals and Materials Society, held during the TMS 2005 Annual Meeting
Number of pages12
StatePublished - 2005
Event2005 TMS Annual Meeting - San Francisco, CA, United States
Duration: Feb 13 2005Feb 17 2005


Other2005 TMS Annual Meeting
Country/TerritoryUnited States
CitySan Francisco, CA

All Science Journal Classification (ASJC) codes

  • Geology
  • Metals and Alloys


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