Zero “Background” Line for Iron Alloys Samples Dilatographs Decoding

S.B. Mikhailov; N.A. Mikhailova; Valentina A. Sharapova

doi:10.4028/www.scientific.net/SSP.284.536

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Zero “Background” Line for Iron Alloys Samples Dilatographs Decoding

Abstract:

The dilatographs decoding variant was carried out on the basis of comparison with the zero "background" line for heating the metallic materials samples. The line is formed taking into account the features of the change in the true values of the linear coefficient of thermal expansion. It has been calculated on the dilatographs basis. The experimental fact was revealed, which is in contradiction with general metal science concepts concerning dilatometric results of recrystallization in materials with polymorphism. The expected result of the thermal change in the sample dimensions has the opposite sign with respect to the experimental result in the recrystallization temperature intervals. This requires careful theoretical and experimental analysis. In our opinion, a possible reason for the discrepancy is the fact that the size of the atoms changes during recrystallization due to the electron orbitals hybridization of iron atoms, due to a change in temperature and intracrystalline pressure.

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Periodical:

Solid State Phenomena (Volume 284)

Pages:

536-541

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.284.536

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Online since:

October 2018

Authors:

S.B. Mikhailov*, N.A. Mikhailova, Valentina A. Sharapova

Keywords:

Dilatograph, Dilatometric Effects, Linear Coefficient of Thermal Expansion "LCTE", Zero "Background" Dilatograph Line, Zero "Background" LCTE-Line

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