使用 THERMO-CALC 对 Ni25Al25Co14Fe14Ti9Mn8Cr5 高熵合金体系进行热力学和相位预测

IF 1.9 Q3 ENGINEERING, MANUFACTURING

Manufacturing Letters Pub Date : 2024-10-01 DOI:10.1016/j.mfglet.2024.09.020

Emmanuel Olorundaisi , Bukola J Babalola , Ufoma S. Anamu , Moipone L. Teffo , Ngeleshi M. Kibambe , Anthony O. Ogunmefun , Peter Odetola , Peter A. Olubambi

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引用次数: 0

摘要

本研究的重点是利用 THERMOCALC 软件 2021b 版和 TCHEA5 高熵合金（HEAs）数据库预测 NiAl-Ti-Mn-Co-Fe-Cr 高熵合金（HEAs）的相和热机械性能。热力学模拟用于研究 HEA 的相形成和总硬度。热力学模拟结果表明，室温下存在三个主要相，即 BCC 相、SIGMA 相和 HEUSLER 相，其中 BCC 相的体积分数百分比较高，为 62.4%。对所有成分在高温下的活性进行了研究，研究结果表明，镍和铝在高温下是稳定的，这意味着在高温下有望获得优异的机械性能。预测的总硬度为 96.2 HV。

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Thermo-mechanical and phase prediction of Ni25Al25Co14Fe14Ti9Mn8Cr5 high entropy alloys system using THERMO-CALC

This study focuses on predicting phases and thermo-mechanical properties of NiAl-Ti-Mn-Co-Fe-Cr High Entropy Alloys (HEAs) using THERMOCALC software version 2021b with the TCHEA5 HEAs database. The thermodynamic simulation was used to investigate the phase formation and total hardness of the HEAs. The thermodynamic simulation result shows the presence of three major phases at room temperature, namely, BCC, SIGMA, and HEUSLER phases, with the BCC having a higher percentage of volume fraction of 62.4%. The activity of all components at high temperatures was studied, and the study shows Ni and Al to be stable at high temperatures, implying excellent mechanical properties are expected at high temperatures. The predicted total hardness is given as 96.2 HV.

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来源期刊

Manufacturing Letters Engineering-Industrial and Manufacturing Engineering

CiteScore

4.20

自引率

5.10%

发文量

192

审稿时长

60 days