Development of a sustainable novel aluminum alloy from scrap car wheels through a stir-squeeze casting process

IF 0.7 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Kovove Materialy-Metallic Materials Pub Date : 2022-06-17 DOI:10.31577/km.2022.3.151

Alaa Abdulhady Jaber, P. Krishnan

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.

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用搅拌挤压铸造法从废汽车车轮中开发可持续发展的新型铝合金

由于重量轻，铝合金在许多行业都有广泛的应用，包括汽车和航空航天。本研究采用搅拌挤压铸造技术制备了一种新型铝合金。采用层次分析法(AHP)对三种竞争工艺的可持续性进行了分析。以汽车铝合金轮毂废料为基体材料。合金元素采用高熵合金(HEA)，总重量百分比为2.6%。对所研制的合金进行了硬度、拉伸和抗压强度试验。采用光学显微镜、扫描电镜和x射线衍射仪对其微观结构进行了分析。对制备的合金进行热处理，比较热处理前后的力学性能和显微组织。结果表明，热处理后合金的硬度和抗压强度均有显著提高。这种改善主要归因于时效过程中Si颗粒的析出。

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

Kovove Materialy-Metallic Materials MATERIALS SCIENCE, MULTIDISCIPLINARY-METALLURGY & METALLURGICAL ENGINEERING

CiteScore

1.20

自引率

14.30%

发文量

审稿时长

3 months

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.