{"title":"时效处理对高性能Al - 0.35Cu - 0.18Sc - 0.06Zr导体机电性能的影响","authors":"Chunxin Wang, Chenchi Qu, Xin Qi, Binchuan Li, Qing Han, Xudong Luo","doi":"10.1007/s11041-025-01135-4","DOIUrl":null,"url":null,"abstract":"<p>The effect of the aging mode on the mechanical and electrical properties of the heat-resistant electrically conductive aluminum alloy Al – 0.35Cu – 0.18Sc – 0.06Zr is studied. It is found that the highest set of operational properties of the alloy is achieved after aging at a temperature of 663 K for 15 hours. After aging under this mode, the microstructure of the alloy is characterized by a uniform distribution of dispersed inclusions of secondary phases Al<sub>3</sub>(Sc, Zr) 10 – 20 nm in size in the aluminum matrix. Such a structure ensures strengthening of the alloy by the Orowan mechanism, due to which the tensile strength increases to 170 MPa. At the same time, there is a significant increase in the electrical conductivity of the alloy to 60.4% IACS due to a decrease in the distortion of the crystal lattice. The results of heat resistance tests in combination with the plotted Arrhenius curves showed that the effective service life of Al – 0.35Cu – 0.18Sc – 0.06Zr conductors at 503 K reaches 350,400 h.</p>","PeriodicalId":701,"journal":{"name":"Metal Science and Heat Treatment","volume":"67 1-2","pages":"106 - 114"},"PeriodicalIF":0.5000,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Effect of Aging Treatment on Mechanical and Electrical Properties of Al – 0.35Cu – 0.18Sc – 0.06Zr Conductors for High-Performance Applications\",\"authors\":\"Chunxin Wang, Chenchi Qu, Xin Qi, Binchuan Li, Qing Han, Xudong Luo\",\"doi\":\"10.1007/s11041-025-01135-4\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>The effect of the aging mode on the mechanical and electrical properties of the heat-resistant electrically conductive aluminum alloy Al – 0.35Cu – 0.18Sc – 0.06Zr is studied. It is found that the highest set of operational properties of the alloy is achieved after aging at a temperature of 663 K for 15 hours. After aging under this mode, the microstructure of the alloy is characterized by a uniform distribution of dispersed inclusions of secondary phases Al<sub>3</sub>(Sc, Zr) 10 – 20 nm in size in the aluminum matrix. Such a structure ensures strengthening of the alloy by the Orowan mechanism, due to which the tensile strength increases to 170 MPa. At the same time, there is a significant increase in the electrical conductivity of the alloy to 60.4% IACS due to a decrease in the distortion of the crystal lattice. The results of heat resistance tests in combination with the plotted Arrhenius curves showed that the effective service life of Al – 0.35Cu – 0.18Sc – 0.06Zr conductors at 503 K reaches 350,400 h.</p>\",\"PeriodicalId\":701,\"journal\":{\"name\":\"Metal Science and Heat Treatment\",\"volume\":\"67 1-2\",\"pages\":\"106 - 114\"},\"PeriodicalIF\":0.5000,\"publicationDate\":\"2025-07-29\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Metal Science and Heat Treatment\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s11041-025-01135-4\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"METALLURGY & METALLURGICAL ENGINEERING\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Metal Science and Heat Treatment","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s11041-025-01135-4","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"METALLURGY & METALLURGICAL ENGINEERING","Score":null,"Total":0}
Effect of Aging Treatment on Mechanical and Electrical Properties of Al – 0.35Cu – 0.18Sc – 0.06Zr Conductors for High-Performance Applications
The effect of the aging mode on the mechanical and electrical properties of the heat-resistant electrically conductive aluminum alloy Al – 0.35Cu – 0.18Sc – 0.06Zr is studied. It is found that the highest set of operational properties of the alloy is achieved after aging at a temperature of 663 K for 15 hours. After aging under this mode, the microstructure of the alloy is characterized by a uniform distribution of dispersed inclusions of secondary phases Al3(Sc, Zr) 10 – 20 nm in size in the aluminum matrix. Such a structure ensures strengthening of the alloy by the Orowan mechanism, due to which the tensile strength increases to 170 MPa. At the same time, there is a significant increase in the electrical conductivity of the alloy to 60.4% IACS due to a decrease in the distortion of the crystal lattice. The results of heat resistance tests in combination with the plotted Arrhenius curves showed that the effective service life of Al – 0.35Cu – 0.18Sc – 0.06Zr conductors at 503 K reaches 350,400 h.
期刊介绍：
Metal Science and Heat Treatment presents new fundamental and practical research in physical metallurgy, heat treatment equipment, and surface engineering.
Topics covered include:
New structural, high temperature, tool and precision steels;
Cold-resistant, corrosion-resistant and radiation-resistant steels;
Steels with rapid decline of induced properties;
Alloys with shape memory effect;
Bulk-amorphyzable metal alloys;
Microcrystalline alloys;
Nano materials and foam materials for medical use.
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