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Title: X-ray MicroBeam Characterization of the Near Surface Nanostructure Layer in Ti after Friction Stir Processing

Abstract

Plastic deformation and structural changes of a Ti surface after Friction Stir Processing (FSP) were analyzed by means of SEM, EBSD and advanced 3D polychromatic X-ray micro diffraction at the APS synchrotron. Spatially resolved 3D Laue diffraction allowed observing the changes in dislocation arrangement with depth in different regions of the FSP Ti. Formation of two specific zones was established: friction stir zone (FSZ), with an average thickness of 300 m, and thermal mechanical affected zone (TMAZ) with a thickness ofe of 800 m. It was shown that FSP generates a large number of dislocations. Maximal dislocation density is located within the TMAZ. Dislocation density gradually decreases and reaches the value typical for base metal. Within the TMAZ dislocations are distributed inhomogeneously. Inhomogeneity of plastic deformation and dislocations arrangement is found in 3D both within the individual grains and between separate grains.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1]
  1. ORNL
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Shared Research Equipment Collaborative Research Center
Sponsoring Org.:
USDOE Office of Science (SC); USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
930789
DOE Contract Number:  
DE-AC05-00OR22725
Resource Type:
Journal Article
Resource Relation:
Journal Name: Reviews on Advanced Materials Science; Journal Volume: 15; Journal Issue: 1
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY; TITANIUM; SURFACE PROPERTIES; NANOSTRUCTURES; DISLOCATIONS; FRICTION; DISTRIBUTION; nanostructure; x-ray diffraction; characterization; TEM

Citation Formats

Barabash, Rozaliya, Barabash, Oleg M, Ice, Gene E, David, Stan A, Feng, Zhili, and Horton Jr, Joe A. X-ray MicroBeam Characterization of the Near Surface Nanostructure Layer in Ti after Friction Stir Processing. United States: N. p., 2007. Web.
Barabash, Rozaliya, Barabash, Oleg M, Ice, Gene E, David, Stan A, Feng, Zhili, & Horton Jr, Joe A. X-ray MicroBeam Characterization of the Near Surface Nanostructure Layer in Ti after Friction Stir Processing. United States.
Barabash, Rozaliya, Barabash, Oleg M, Ice, Gene E, David, Stan A, Feng, Zhili, and Horton Jr, Joe A. Mon . "X-ray MicroBeam Characterization of the Near Surface Nanostructure Layer in Ti after Friction Stir Processing". United States. doi:.
@article{osti_930789,
title = {X-ray MicroBeam Characterization of the Near Surface Nanostructure Layer in Ti after Friction Stir Processing},
author = {Barabash, Rozaliya and Barabash, Oleg M and Ice, Gene E and David, Stan A and Feng, Zhili and Horton Jr, Joe A},
abstractNote = {Plastic deformation and structural changes of a Ti surface after Friction Stir Processing (FSP) were analyzed by means of SEM, EBSD and advanced 3D polychromatic X-ray micro diffraction at the APS synchrotron. Spatially resolved 3D Laue diffraction allowed observing the changes in dislocation arrangement with depth in different regions of the FSP Ti. Formation of two specific zones was established: friction stir zone (FSZ), with an average thickness of 300 m, and thermal mechanical affected zone (TMAZ) with a thickness ofe of 800 m. It was shown that FSP generates a large number of dislocations. Maximal dislocation density is located within the TMAZ. Dislocation density gradually decreases and reaches the value typical for base metal. Within the TMAZ dislocations are distributed inhomogeneously. Inhomogeneity of plastic deformation and dislocations arrangement is found in 3D both within the individual grains and between separate grains.},
doi = {},
journal = {Reviews on Advanced Materials Science},
number = 1,
volume = 15,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2007},
month = {Mon Jan 01 00:00:00 EST 2007}
}