Thermal Induced Processes in Laminar System of Stainless Steel – Beryllium

Author: Zhubaev A.   Kadyrzhanov K.   Rusakov V.   Turkebaev T.  

Publisher: Springer Publishing Company

ISSN: 0304-3843

Source: Hyperfine Interactions, Vol.164, Iss.1-4, 2005-07, pp. : 73-85

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Abstract

The paper reports on investigation of the laminar system ‘stainless steel 12Cr18Ni10Ti – Be’ at thermal treatment. There have been determined sequences of phase transformations along with relative amount of iron-containing phases in the samples subjected to thermal beryllization. It has been revealed that thermal beryllization of stainless steel thin foils results in γ→α transformation and formation of the beryllides NiBe and FeBe2. It has also been revealed that direct γ→α- and reverse α→γ-transformations are accompanied by, correspondingly, formation and decomposition of the beryllide NiBe. It is shown that distribution of the formed phases within sample bulk is defined by local concentration of beryllium. Based on obtained experimental data there is proposed a physical model of phase transformations in stainless steel at thermal beryllization.