Abstract

The experimental data about the thermodynamics of elements behavior in the chromium-base alloys are absent, so it has been offered to estimate those ones by transferring from iron-base alloys. The heats of dissolution of elements, the activity coefficients of elements, the molar interaction parameters of elements, the free energy change (ΔGг˚) for reactions of deoxidation, nitride-, carbide-, sulphide- and borideforming in сhromium-base melts have been calculated and are presented in tables. The recommendations about the rational select of the strengthening phases in chromium-base alloys are given.

Highlights

  • The experimental data about the thermodynamics of elements behavior in the chromium-base alloys are absent, so it has been offered to estimate those ones by transferring from iron-base alloys

  • Универсальная методика пересчета значений параметров взаимодействия элементов с одной основы сплава на другую на базе теории квазирегулярных растворов

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Summary

Introduction

В связи с отсутствием экспериментальных данных о термодинамике поведения элементов в расплавах на базе хрома проведена их оценка путем пересчета с данных для сплавов на основе железа. В соответствии с данным методом (на основе теории квазирегулярных растворов), если в жидком железе при 1873 К для трех элементов i, j и Ме известны молярные параметры взаимодействия и то в расплавах на основе элемента Ме при

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