Paper Title:
Single-Line Diffraction Profile Analysis Method Used for Evaluation of Microstructural Parameters in the Plain Ferritic Steel upon Tensile Straining
  Abstract

The modification of the Transformed Model Fitting /TMF/ [1] method developed for evaluation of the single-line profiles from high-resolution neutron powder diffractometers is proposed [2]. More sophisticated real-space model [3] is used for the distortion and crystallite size broadening of the diffraction lines. The new PC program based on this model has been tested on neutron diffraction profiles collected in situ upon tensile deformation tests of the plain ferritic steel. The deformation test was performed in the incremental mode in which each individual deformation step was followed by unloading. The neutron diffraction spectra were collected both upon loading and unloading and behavior of the diffraction profiles in elastic as well as in plastic region of the deformation curve was examined in detail. Comparison of microstress values in loaded/unloaded state and in elastic and plastic region offers interesting possibility to separate the contribution of the type II and type III microstresses.

  Info
Periodical
Materials Science Forum (Volumes 571-572)
Edited by
A. R. Pyzalla, A. Borbély and H.-P. Degischer
Pages
181-188
DOI
10.4028/www.scientific.net/MSF.571-572.181
Citation
V. Davydov, P. Lukáš, P. Strunz, R. Kužel, "Single-Line Diffraction Profile Analysis Method Used for Evaluation of Microstructural Parameters in the Plain Ferritic Steel upon Tensile Straining", Materials Science Forum, Vols. 571-572, pp. 181-188, 2008
Online since
March 2008
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$32.00
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