Abstract
0.2 mass% Mo in a high-strength steel has been investigated using x-ray absorption fine structure (XAFS) technique. Mo-K edge x-ray fluorescence XAFS spectra show the transition from Mo in solution in α-Fe matrix to Mo in carbides when the steel is annealed at 650°C. We have evaluated the atomic fraction of Mo atoms in solution and in carbides from curve fitting parameter of XANES spectra and from coordination number of iron surrounding Mo in the α-Fe matrix derived from an EXAFS analysis.
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