Issues »  Volume 39, Issue 9

On the Issue of the Nature of Tetragonality of a Martensite

V. A. Lobodyuk, Yu. Ya. Meshkov

G.V. Kurdyumov Institute for Metal Physics, NAS of Ukraine, 36 Academician Vernadsky Blvd., UA-03142 Kyiv, Ukraine

Received: 23.03.2017. Download: PDF

Tetragonality of the martensite in carbon steels is considered, and analysis of the available publication data is fulfilled. The concept of the limiting or ideal tetragonality is introduced, and its value is calculated. As shown, the real tetragonality determined by x-ray method is some value averaged over a whole volume of the martensitic phase. Explanations of the so-called cubic martensite as well as the ‘normal’ and ‘anomalously low’ tetragonality in steels are offered.

Key words: carbon steel, martensite, austenite, lattice parameters, tetragonality, octahedral pore, distortion.

URL: http://mfint.imp.kiev.ua/en/abstract/v39/i09/1281.html

DOI: https://doi.org/10.15407/mfint.39.09.1281

PACS: 61.05.cp, 61.50.Ks, 61.72.Bb, 61.72.Dd, 61.72.S-, 81.30.Kf, 81.40.Ef

Citation: V. A. Lobodyuk and Yu. Ya. Meshkov, On the Issue of the Nature of Tetragonality of a Martensite, Metallofiz. Noveishie Tekhnol., 39, No. 9: 1281—1298 (2017) (in Russian)

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