The Impact of Thermomechanical Treatment on Structure, Electrical Resistance and Hardness of Al–4% Cu–3% Mn Alloy Casted in an Electromagnetic Crystallizer

IF 1.1 4区材料科学 Q3 METALLURGY & METALLURGICAL ENGINEERING

Physics of Metals and Metallography Pub Date : 2024-05-08 DOI:10.1134/s0031918x23603177

N. A. Belov, S. O. Cherkasov, N. O. Korotkova, M. M. Motkov

引用次数: 0

Abstract

The impact of thermomechanical treatment on the structure, electrical resistance, and hardness of the Al–4% Cu–3% Mn alloy, which was obtained by casting in an electromagnetic crystallizer, has been investigated using computational and experimental methods. It has been shown that at the cooling rate of more than 1000 K/s, the whole amount of manganese and half of the copper content are dissolved in the aluminum solid solution. This enables the formation of a structure with the maximum possible number of Al₂₀Cu₂Mn₃ dispersoids after subsequent thermomechanical treatment, resulting in a significant improvement in the thermal resistance compared to the known alloys of Al–Cu–Mn system.

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热机械处理对电磁结晶器中铸造的 Al-4% Cu-3% Mn 合金的结构、电阻和硬度的影响

摘要采用计算和实验方法研究了在电磁结晶器中通过铸造获得的铝-4%铜-3%锰合金的热机械处理对其结构、电阻和硬度的影响。研究表明，当冷却速度超过 1000 K/s 时，铝固溶体中会溶解全部的锰和一半的铜。这使得在随后的热机械处理后，能够形成具有尽可能多的 Al20Cu2Mn3 分散体的结构，从而与已知的铝-铜-锰系统合金相比，显著提高了热阻。

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

Physics of Metals and Metallography 工程技术-冶金工程

CiteScore

2.00

自引率

25.00%

发文量

108

审稿时长

3 months

期刊介绍： The Physics of Metals and Metallography (Fizika metallov i metallovedenie) was founded in 1955 by the USSR Academy of Sciences. Its scientific profile involves the theory of metals and metal alloys, their electrical and magnetic properties, as well as their structure, phase transformations, and principal mechanical properties. The journal also publishes scientific reviews and papers written by experts involved in fundamental, application, and technological studies. The annual volume of publications amounts to some 250 papers submitted from 100 leading national scientific institutions.