Research and Development > Technical Report > No.9 Special Issue on "Analytical Sciences and Microstructural Characterization″ and "Steel Sheet for Can-making″ > Quantitative Chemical State Analysis of Ti and Mo in a High Strength Steel Using X-Ray Absorption Fine Structure (XAFS)

No.9 Special Issue on "Analytical Sciences and Microstructural Characterization″ and "Steel Sheet for Can-making″

Quantitative Chemical State Analysis of Ti and Mo in a High Strength Steel Using X-Ray Absorption Fine Structure (XAFS)

NAGOSHI Masayasu     KAWANO Takashi     SATO Kaoru

Abstract

An X-ray absorption fine structure (XAFS) technique with the X-ray fluorescence yield mode was applied to a non-destructive chemical state analysis of Ti and Mo in a Ti-Mo added high-strength steel. The Ti-K and Mo-K edge XAFS spectra clearly showed a transition of Ti and Mo from in solution form in the α-Fe matrix to a carbide form with heat treatments. The authors propose this XAFS analysis for the quantification of the fraction of the precipitation of micro-alloy elements. The analysis revealed a significant difference between the precipitation kinetics of Ti and Mo in the steel.

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