Quantitative phase analysis of strongly textured alloy mixtures using neutron diffraction

Abstract

Based on the Rietveld profile refinement of neutron diffraction patterns and a new texture analysis method, a quantitative phase analysis (QPA) method is proposed and examined in the case of artificially produced multiphase alloys having strong textures. The preferred‐orientation factors (POFs) of the diffraction peaks were extracted from the inverse pole figure calculated from the orientation distribution function (ODF) that was computed from the averaged pole figures measured by the rotating sample stage, providing a faster and simpler texture measurement. The reliability of this method was examined using binary alloy mixtures of known fractions of zirconium and aluminium. In addition, the fraction of unknown phases in an artificially produced aluminium matrix composite was determined by introducing a standard zirconium sample. QPA of the binary mixtures successfully predicted the weight fraction of each component with an absolute error of less than 0.3 wt%. This method also provided appropriate results on the calculation of the weight fraction of unknown phases in the aluminium matrix composite.

Rietveld Quantitative Phase Analysis of OPC Clinkers, Cements and Hydration Products

“…We address the reader to some selected books and papers for a deeper insight of the role of the Rietveld method in the remaining applications (Young 1993;McCusker et al 1999;David et al 2002;Shin et al 2002;Fitzpatrick and Lodini 2003;Balzar et al 2004;Pecharsky and Zavalij 2005;Kaduk 2007a,b;Dinnebier and Billinge 2008;David and Shankland 2008;Soleimanian and Aghdaee 2008;Markvardsen et al 2008). Finally, new ways of learning are being explored.…”

5. Rietveld Quantitative Phase Analysis of OPC Clinkers, Cements and Hydration Products

“…In this review article, we will focus on the viii th -application, quantitative phase analysis. We address the reader to some selected books and papers for a deeper insight of the role of the Rietveld method in the remaining applications (Young 1993;McCusker et al 1999;David et al 2002;Shin et al 2002;Fitzpatrick and Lodini 2003;Balzar et al 2004;Pecharsky and Zavalij 2005;Kaduk 2007a,b;Dinnebier and Billinge 2008;David and Shankland 2008;Soleimanian and Aghdaee 2008;Markvardsen et al 2008). Finally, new ways of learning are being explored.…”

Quantitative Phase Analysis of the Multi-Phase Alloys Using Neutron Diffraction

“…In this procedure, pole figures were scanned on both the radial angle α and azimuth angle β with a constant interval of 5 o . In addition to the usual method, averaged pole figures were measured by a rotating sample stage [3].…”

“…The reliability of this method was examined in artificially produced samples of known fractions of the mixture components. In this paper, we simply introduce the results [3].…”