Study of Softening Temperature Range of Agglomerate Depending on its Structure and Phase Composition

Q4 Physics and Astronomy

Defect and Diffusion Forum Pub Date : 2023-12-12 DOI:10.4028/p-36AEtf

Andrey N. Dmitriev, E. Vyaznikova, G. Vitkina, R. Alektorov

引用次数: 0

Abstract

The initial and final softening (melting) temperatures of redesigned iron ore agglomerates with basicities from 1.2 to 3.0, obtained under laboratory conditions, were investigated. The chemical and phase compositions of the laboratory agglomerates, their microstructures and local chemical compositions, the temperatures at the beginning and end of softening (melting), and the temperature interval of softening were studied. Dependencies of the influence of the basicity of iron ore agglomerates on their softening temperature interval, depending on the proportion of phase components, were obtained. It is shown that as the basicity and proportion of silicoferrite SFCA phases increase, the temperatures at the beginning and end of the softening increase and reach a maximum of 1200 and 1312 °С, respectively (at the basicity of the agglomerate of 1.8), after which the temperatures decrease. Simultaneously, the softening interval increased from 73 to 112 °C.

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研究不同结构和相组成的团聚体软化温度范围

研究了在实验室条件下获得的碱度为 1.2 至 3.0 的重新设计铁矿团块的初始和最终软化（熔化）温度。研究了实验室团聚体的化学成分和相组成、微观结构和局部化学成分、软化（熔化）开始和结束时的温度以及软化的温度间隔。结果表明，铁矿石团块的碱性对其软化温度区间的影响取决于相成分的比例。结果表明，随着硅铁SFCA相的碱性和比例的增加，软化开始和结束时的温度也随之增加，并分别达到 1200 °С 和 1312 °С 的最高值（在团聚体的碱性为 1.8 时），之后温度降低。同时，软化间隔也从 73 °C 增加到 112 °C。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Defect and Diffusion Forum Physics and Astronomy-Radiation

CiteScore

1.20

自引率

0.00%

发文量

127

期刊介绍： Defect and Diffusion Forum (formerly Part A of ''''Diffusion and Defect Data'''') is designed for publication of up-to-date scientific research and applied aspects in the area of formation and dissemination of defects in solid materials, including the phenomena of diffusion. In addition to the traditional topic of mass diffusion, the journal is open to papers from the area of heat transfer in solids, liquids and gases, materials and substances. All papers are peer-reviewed and edited. Members of Editorial Boards and Associate Editors are invited to submit papers for publication in “Defect and Diffusion Forum” . Authors retain the right to publish an extended and significantly updated version in another periodical.