Evolution of cementite morphology in pearlitic steel wire during wet wire drawing

Publication: Research - peer-reviewJournal article – Annual report year: 2010

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The evolution of the cementite phase during wet wire drawing of a pearlitic steel wire has been followed as a function of strain. Particular attention has been given to a quantitative characterization of changes in the alignment and in the dimensions of the cementite phase. Scanning electron microscope observations show that cementite plates become increasingly aligned with the wire axis as the drawing strain is increased. Measurements in the transmission electron microscope show that the cementite deforms plastically during wire drawing , with the average thickness of the cementite plates decreasing from 19 nm (ε = 0) to 2 nm (ε = 3.7) in correspondence with the reduction in wire diameter. The deformation of the cementite is strongly related to plastic deformation in the ferrite, with coarse slip steps, shear bands and cracks in the cementite plates/particles observed parallel to either {110}α or {112}α slip plane traces in the ferrite.
Original languageEnglish
JournalMaterials Characterization
Publication date2010
Volume61
Issue1
Pages65-72
ISSN1044-5803
DOIs
StatePublished
CitationsWeb of Science® Times Cited: 19

Keywords

  • Materials and energy storage, Light strong materials for energy purposes

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