{"title":"同时提高了碳纳米管增强ZK61基复合材料的导热性和力学性能","authors":"","doi":"10.1016/j.jma.2023.01.011","DOIUrl":null,"url":null,"abstract":"<div><p>Alloying seriously deteriorates the thermal conductivity of magnesium (Mg) alloys, thus, restricts their applications in the fields of computer, communication, and consumer products. In order to improve the thermal conductivity of Mg alloys, adding carbon nanotube (CNT) combined with aging treatment is proposed in this work, i.e. fabricating the D-CNT (a kind of dispersed CNT) reinforced ZK61 matrix composite via powder metallurgy, and conducting aging treatment to the composite. Results indicate the as-aged ZK61/0.6 wt.% D-CNT composite achieved an excellent thermal conductivity of 166 W/(mK), exhibiting 52.3% enhancement in comparison with matrix, as well as tensile yield strength of 321 MPa, ultimate tensile strength of 354 of MPa, and elongation of 14%. The simultaneously enhanced thermal conductivity and mechanical performance are mainly attributed to: (1) the embedded interface of the D-CNT with matrix and (2) the coherent interface of precipitates with matrix. It is expected the current work can provide a clue for devising Mg matrix composites with integrated structural and functional performances, and enlarge the current restricted applications of Mg alloys.</p></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":null,"pages":null},"PeriodicalIF":15.8000,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2213956723000385/pdfft?md5=ee8eec476b728fceedba9718662f1651&pid=1-s2.0-S2213956723000385-main.pdf","citationCount":"0","resultStr":"{\"title\":\"Simultaneously enhanced thermal conductivity and mechanical performance of carbon nanotube reinforced ZK61 matrix composite\",\"authors\":\"\",\"doi\":\"10.1016/j.jma.2023.01.011\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Alloying seriously deteriorates the thermal conductivity of magnesium (Mg) alloys, thus, restricts their applications in the fields of computer, communication, and consumer products. In order to improve the thermal conductivity of Mg alloys, adding carbon nanotube (CNT) combined with aging treatment is proposed in this work, i.e. fabricating the D-CNT (a kind of dispersed CNT) reinforced ZK61 matrix composite via powder metallurgy, and conducting aging treatment to the composite. Results indicate the as-aged ZK61/0.6 wt.% D-CNT composite achieved an excellent thermal conductivity of 166 W/(mK), exhibiting 52.3% enhancement in comparison with matrix, as well as tensile yield strength of 321 MPa, ultimate tensile strength of 354 of MPa, and elongation of 14%. The simultaneously enhanced thermal conductivity and mechanical performance are mainly attributed to: (1) the embedded interface of the D-CNT with matrix and (2) the coherent interface of precipitates with matrix. It is expected the current work can provide a clue for devising Mg matrix composites with integrated structural and functional performances, and enlarge the current restricted applications of Mg alloys.</p></div>\",\"PeriodicalId\":16214,\"journal\":{\"name\":\"Journal of Magnesium and Alloys\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":15.8000,\"publicationDate\":\"2024-07-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S2213956723000385/pdfft?md5=ee8eec476b728fceedba9718662f1651&pid=1-s2.0-S2213956723000385-main.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Magnesium and Alloys\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2213956723000385\",\"RegionNum\":1,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"METALLURGY & METALLURGICAL ENGINEERING\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Magnesium and Alloys","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2213956723000385","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"METALLURGY & METALLURGICAL ENGINEERING","Score":null,"Total":0}
Simultaneously enhanced thermal conductivity and mechanical performance of carbon nanotube reinforced ZK61 matrix composite
Alloying seriously deteriorates the thermal conductivity of magnesium (Mg) alloys, thus, restricts their applications in the fields of computer, communication, and consumer products. In order to improve the thermal conductivity of Mg alloys, adding carbon nanotube (CNT) combined with aging treatment is proposed in this work, i.e. fabricating the D-CNT (a kind of dispersed CNT) reinforced ZK61 matrix composite via powder metallurgy, and conducting aging treatment to the composite. Results indicate the as-aged ZK61/0.6 wt.% D-CNT composite achieved an excellent thermal conductivity of 166 W/(mK), exhibiting 52.3% enhancement in comparison with matrix, as well as tensile yield strength of 321 MPa, ultimate tensile strength of 354 of MPa, and elongation of 14%. The simultaneously enhanced thermal conductivity and mechanical performance are mainly attributed to: (1) the embedded interface of the D-CNT with matrix and (2) the coherent interface of precipitates with matrix. It is expected the current work can provide a clue for devising Mg matrix composites with integrated structural and functional performances, and enlarge the current restricted applications of Mg alloys.
期刊介绍:
The Journal of Magnesium and Alloys serves as a global platform for both theoretical and experimental studies in magnesium science and engineering. It welcomes submissions investigating various scientific and engineering factors impacting the metallurgy, processing, microstructure, properties, and applications of magnesium and alloys. The journal covers all aspects of magnesium and alloy research, including raw materials, alloy casting, extrusion and deformation, corrosion and surface treatment, joining and machining, simulation and modeling, microstructure evolution and mechanical properties, new alloy development, magnesium-based composites, bio-materials and energy materials, applications, and recycling.