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

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. - Highlights: • Energy dispersive X-ray diffraction is applied to the line-profile analysis. • Distribution of dislocations in ferrite in the pearlitic steel wire is analyzed. • Relationship between dislocations and residual stress is discussed.
Authors:
 [1] ;  [1] ;  [2] ; ;  [3] ;  [4] ;  [5] ;  [6]
  1. Institute for Materials Research, Tohoku University, Sendai 980-8577 (Japan)
  2. Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577 (Japan)
  3. Faculty of Engineering, Tokyo City University, Tokyo 158-8557 (Japan)
  4. Gyoda 361-0011 (Japan)
  5. Japan Synchrotron Radiation Research Institute, Sayo 679-5198 (Japan)
  6. Japan Atomic Energy Agency, Sayo 679-5184 (Japan)
Publication Date:
OSTI Identifier:
22285086
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Characterization; Journal Volume: 83; Other Information: Copyright (c) 2013 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; DISLOCATIONS; ENERGY RESOLUTION; FERRITE; MICROSTRUCTURE; RESIDUAL STRESSES; STEELS; X-RAY DIFFRACTION