Thermal Coefficient of Linear Expansion Modified by Dendritic Segregation in Nickel-Iron Alloys
- Authors: Ogorodnikova O.M.1, Maksimova E.V.2
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Affiliations:
- Ural Federal University
- Novator Design Bureau
- Issue: Vol 61, No 1 (2018)
- Pages: 7-13
- Section: Article
- URL: https://ogarev-online.ru/1064-8887/article/view/239996
- DOI: https://doi.org/10.1007/s11182-018-1358-x
- ID: 239996
Cite item
Abstract
The paper presents investigations of thermal properties of Fe–Ni and Fe–Ni–Co casting alloys affected by the heterogeneous distribution of their chemical elements. It is shown that nickel dendritic segregation has a negative effect on properties of studied invars. A mathematical model is proposed to explore the influence of nickel dendritic segregation on the thermal coefficient of linear expansion (TCLE) of the alloy. A computer simulation of TCLE of Fe–Ni–Co superinvars is performed with regard to a heterogeneous distribution of their chemical elements over the whole volume. The ProLigSol computer software application is developed for processing the data array and results of computer simulation.
About the authors
O. M. Ogorodnikova
Ural Federal University
Author for correspondence.
Email: o.m.ogorodnikova@bk.ru
Russian Federation, Ekaterinburg
E. V. Maksimova
Novator Design Bureau
Email: o.m.ogorodnikova@bk.ru
Russian Federation, Ekaterinburg
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