Thermal Coefficient of Linear Expansion Modified by Dendritic Segregation in Nickel-Iron Alloys


Cite item

Full Text

Open Access Open Access
Restricted Access Access granted
Restricted Access Subscription Access

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

Supplementary files

Supplementary Files
Action
1. JATS XML

Copyright (c) 2018 Springer Science+Business Media, LLC, part of Springer Nature