{"title":"Development of a sustainable novel aluminum alloy from scrap car wheels through a stir-squeeze casting process","authors":"Alaa Abdulhady Jaber, P. Krishnan","doi":"10.31577/km.2022.3.151","DOIUrl":null,"url":null,"abstract":"Aluminum alloys are extensively finding applications in many industries, including automotive and aerospace, because of their lightweight. This research produced a novel aluminum alloy using a stir squeeze casting technique. Sustainability analysis of three competing processes to produce the alloy was carried out using Analytical Hierarchy Process (AHP) method. Scrap aluminum alloy wheels from cars were used as the matrix material. High entropy alloy (HEA) was used as the alloying element, with a total weight percentage of 2.6 %. Hardness, tensile and compressive strength tests were conducted for the developed alloy. An optical microscope, SEM, and XRD were used to analyze the microstructure. The produced alloy was heat-treated, and then mechanical properties and microstructure were compared before and after heat treatment. The results showed a significant improvement in hardness and compressive strength after heat treatment. This improvement is mainly attributed to the Si particle precipitation that occurred during the aging process.","PeriodicalId":49937,"journal":{"name":"Kovove Materialy-Metallic Materials","volume":null,"pages":null},"PeriodicalIF":0.7000,"publicationDate":"2022-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Kovove Materialy-Metallic Materials","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.31577/km.2022.3.151","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 3
Abstract
Aluminum alloys are extensively finding applications in many industries, including automotive and aerospace, because of their lightweight. This research produced a novel aluminum alloy using a stir squeeze casting technique. Sustainability analysis of three competing processes to produce the alloy was carried out using Analytical Hierarchy Process (AHP) method. Scrap aluminum alloy wheels from cars were used as the matrix material. High entropy alloy (HEA) was used as the alloying element, with a total weight percentage of 2.6 %. Hardness, tensile and compressive strength tests were conducted for the developed alloy. An optical microscope, SEM, and XRD were used to analyze the microstructure. The produced alloy was heat-treated, and then mechanical properties and microstructure were compared before and after heat treatment. The results showed a significant improvement in hardness and compressive strength after heat treatment. This improvement is mainly attributed to the Si particle precipitation that occurred during the aging process.
期刊介绍：
Kovove Materialy - Metallic Materials is dedicated to publishing original theoretical and experimental papers concerned with structural, nanostructured, and functional metallic and selected non-metallic materials. Emphasis is placed on those aspects of the science of materials that address:
the relationship between the microstructure of materials and their properties, including mechanical, electrical, magnetic and chemical properties;
the relationship between the microstructure of materials and the thermodynamics, kinetics and mechanisms of processes;
the synthesis and processing of materials, with emphasis on microstructural mechanisms and control;
advances in the characterization of the microstructure and properties of materials with experiments and models which help in understanding the properties of materials.
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