X-ray diffraction study of precipitation in melt-spun high speed steels

Härle, J.; Lamparter, P.; Steeb, S.

doi:10.1051/jp4:1993861

Cited by 2 publications

(1 citation statement)

References 2 publications

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“…For samples with a significant amount of Fe, however, the wavelength of 1.54 Å has the disadvantage that it stimulates the emission of fluorescence radiation which superimposes the detectable small angle signal. Alternative sources using Cr or Mo radiation are much lower in their photon efficiency but have been used with rotating anode generators to investigate steel samples [21]. Our aim was to develop a laboratory system, based on a point focus geometry and on a sealed tube cobalt radiation, to overcome the described problems and evaluate this type of materials.…”

Section: Introductionmentioning

confidence: 99%

Small Angle X-Ray Scattering with Cobalt Radiation for Nanostructure Characterization of Fe-Based Specimen

Erlacher

Görgl

Kečkéš

et al. 2004

MSF

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A laboratory system (NanoSTAR) based on a combination of specially designed X-ray multilayer optics (Göbel Mirrors) with optical bench, pinhole collimators, sample changer and primary beam stop as well as a two dimensional multiwire detector (HI-STAR) was equipped with a sealed cobalt X-ray tube. This solution was chosen because the CoKα has a wavelength close to that of copper but allows to overcome the problem of excessive fluorescence in Fe-samples. Various measurements were performed using this configuration of the NanoSTAR to demonstrate the performance of SAXS using cobalt radiation. A comparison is given to the primary beam intensity of the NanoSTAR with Co radiation with respect to the Cu radiation. Examples for the use of the Co radiation are given by investigating the coarsening behavior of precipitates in several Fe-based alloys. The change in size and shape of these precipitates under different heat treatment conditions are characterized.

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Section: Introductionmentioning

confidence: 99%