Relationship between dislocations and residual stresses in cold-drawn pearlitic steel analyzed by energy-dispersive X-ray diffraction

Shigeo Sato, Kazuaki Wagatsuma, Shigeru Suzuki, Masayoshi Kumagai, Muneyuki Imafuku, Hitoshi Tashiro, Kentaro Kajiwara, Takahiasa Shobu

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

We analyzed the dislocation distribution of cold-drawn pearlitic-steel wire by using the line-profile analysis based on the energy dispersive X-ray diffraction (EDXD). Although this line-profile analysis requires a high resolution in reciprocal space, the resolution for EDXD is generally poor due to the energy resolution of the detector. Our analysis demonstrated that the resolution in the reciprocal space can be maximized at small scattering angles. Using the line-profile analysis based on the EDXD, the microstructural parameters such as the crystallite size and the dislocation density of the ferrite phase in the pearlitic steel were successfully analyzed. In addition, the distribution of the residual stress of the ferrite phase of a pearlitic steel wire was also analyzed using the EDXD measurement.

Original languageEnglish
Pages (from-to)152-160
Number of pages9
JournalMaterials Characterization
Volume83
DOIs
Publication statusPublished - 2013 Jul 29

Keywords

  • Dislocation density
  • Energy dispersive X-ray diffraction
  • Line-profile analysis
  • Pearlitic steel
  • Residual stress

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Science(all)
  • Condensed Matter Physics

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