Investigation of the structural properties and corrosion behavior of few-layered graphene reinforced Al-Zn matrix P/M composites

IF 3.3 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Solid State Sciences Pub Date : 2025-05-22 DOI:10.1016/j.solidstatesciences.2025.107980

Gökçe Borand , Berk Şenyurt , Duygu Ağaoğulları , Deniz Uzunsoy , Nazlı Akçamlı

{"title":"Investigation of the structural properties and corrosion behavior of few-layered graphene reinforced Al-Zn matrix P/M composites","authors":"Gökçe Borand , Berk Şenyurt , Duygu Ağaoğulları , Deniz Uzunsoy , Nazlı Akçamlı","doi":"10.1016/j.solidstatesciences.2025.107980","DOIUrl":null,"url":null,"abstract":"<div><div>A powder metallurgical production route was employed to produce Al-7.5 wt% Zn matrix composites reinforced with few-layered graphene (FLG). The in-house synthesized FLG by the electric arc discharge (EAD) method was incorporated into the Al-7.5Zn matrix through mechanical alloying (MA) in varying amounts (0, 0.5, 1.0, and 2.0 wt%). The mechanically alloyed (MAed) powders were consolidated by uniaxial pressing, and they were subjected to pressureless sintering at 635 °C for 2 h. The effects of FLG contents (0, 0.5, 1, and 2 wt%) and MA duration (0, 2, 4, and 8 h) were investigated regarding the microstructural, mechanical, tribological, and corrosion properties of bulk composites. The hardness values of 4 h MAed FLG/Al-7.5Zn composites having graphene in amounts of 0, 0.5, 1, and 2 wt% were determined as 77, 89, 107, and 119 HV, respectively. Compared to Al-7.5Zn alloy, 2 wt% FLG addition significantly increased the hardness of 4 h MAed Al-7.5Zn composites by approximately 54 %. In line with the hardness results, the addition of FLG notably and gradually enhanced the wear resistance of the composites. The Al-7.5Zn matrix displayed an ultimate compressive strength (σ<sub>ucs</sub>) of 180 MPa, which significantly rose to 287 MPa for the Al-7.5Zn-1FLG composite, indicating a 1.6-times enhancement. Moreover, the addition of this amount of graphene did not degrade the corrosion performance of the Al-Zn matrix; in fact, it resulted in a slight improvement in the corrosion resistance of the composites.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"167 ","pages":"Article 107980"},"PeriodicalIF":3.3000,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Solid State Sciences","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S129325582500158X","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}

引用次数: 0

Abstract

A powder metallurgical production route was employed to produce Al-7.5 wt% Zn matrix composites reinforced with few-layered graphene (FLG). The in-house synthesized FLG by the electric arc discharge (EAD) method was incorporated into the Al-7.5Zn matrix through mechanical alloying (MA) in varying amounts (0, 0.5, 1.0, and 2.0 wt%). The mechanically alloyed (MAed) powders were consolidated by uniaxial pressing, and they were subjected to pressureless sintering at 635 °C for 2 h. The effects of FLG contents (0, 0.5, 1, and 2 wt%) and MA duration (0, 2, 4, and 8 h) were investigated regarding the microstructural, mechanical, tribological, and corrosion properties of bulk composites. The hardness values of 4 h MAed FLG/Al-7.5Zn composites having graphene in amounts of 0, 0.5, 1, and 2 wt% were determined as 77, 89, 107, and 119 HV, respectively. Compared to Al-7.5Zn alloy, 2 wt% FLG addition significantly increased the hardness of 4 h MAed Al-7.5Zn composites by approximately 54 %. In line with the hardness results, the addition of FLG notably and gradually enhanced the wear resistance of the composites. The Al-7.5Zn matrix displayed an ultimate compressive strength (σ_ucs) of 180 MPa, which significantly rose to 287 MPa for the Al-7.5Zn-1FLG composite, indicating a 1.6-times enhancement. Moreover, the addition of this amount of graphene did not degrade the corrosion performance of the Al-Zn matrix; in fact, it resulted in a slight improvement in the corrosion resistance of the composites.

Abstract Image

查看原文本刊更多论文

石墨烯增强Al-Zn基P/M复合材料的结构性能和腐蚀行为研究

采用粉末冶金工艺制备了Al-7.5 wt% Zn基少层石墨烯增强复合材料。利用电弧放电（EAD）方法合成的FLG通过机械合金化（MA）以不同的量（0、0.5、1.0和2.0 wt%）掺入Al-7.5Zn基体中。机械合金（MAed）粉末通过单轴压实，在635°C下进行无压烧结2小时。研究了FLG含量（0、0.5、1和2 wt%）和MA持续时间（0、2、4和8 h）对块体复合材料显微组织、力学、摩擦学和腐蚀性能的影响。石墨烯含量为0、0.5、1和2 wt%的FLG/Al-7.5Zn复合材料在4 h MAed后的硬度值分别为77、89、107和119 HV。与Al-7.5Zn合金相比，添加2 wt% FLG可显著提高4h MAed Al-7.5Zn复合材料的硬度约54%。与硬度结果一致，FLG的加入显著且逐渐增强了复合材料的耐磨性。Al-7.5Zn- 1flg复合材料的极限抗压强度（σucs）为180 MPa，而Al-7.5Zn- 1flg复合材料的极限抗压强度达到287 MPa，提高1.6倍。此外，加入一定量的石墨烯并没有降低Al-Zn基体的腐蚀性能；事实上，它导致复合材料的耐腐蚀性略有改善。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Solid State Sciences 化学-无机化学与核化学

CiteScore

6.60

自引率

2.90%

发文量

214

审稿时长

27 days

期刊介绍： Solid State Sciences is the journal for researchers from the broad solid state chemistry and physics community. It publishes key articles on all aspects of solid state synthesis, structure-property relationships, theory and functionalities, in relation with experiments. Key topics for stand-alone papers and special issues: -Novel ways of synthesis, inorganic functional materials, including porous and glassy materials, hybrid organic-inorganic compounds and nanomaterials -Physical properties, emphasizing but not limited to the electrical, magnetical and optical features -Materials related to information technology and energy and environmental sciences. The journal publishes feature articles from experts in the field upon invitation. Solid State Sciences - your gateway to energy-related materials.