Corrosion inhibition analysis on cerium induced hydrophobic surface of Al-6061/SiC/Al2O3 hybrid composites

IF 1.9 3区工程技术 Q3 ENGINEERING, MANUFACTURING

Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture Pub Date : 2024-01-22 DOI:10.1177/09544054231222048

Vipin Kumar Sharma, Pardeep Kumar, Shalom Akhai, Vinod Kumar, R. Joshi

{"title":"Corrosion inhibition analysis on cerium induced hydrophobic surface of Al-6061/SiC/Al2O3 hybrid composites","authors":"Vipin Kumar Sharma, Pardeep Kumar, Shalom Akhai, Vinod Kumar, R. Joshi","doi":"10.1177/09544054231222048","DOIUrl":null,"url":null,"abstract":"A new kind Al-6061/SiC/Al2O3 hybrid composite was prepared with traces amount of cerium oxide and its corrosion performance was evaluated by potentio-dynamic polarization electrochemical method. A new kind of intermetallic (γ-phase) has been observed in the microstructure with higher content of cerium oxide and Al elements. The corrosion resistance of Al-6061 alloy improved with addition of cerium oxide and this improvement could attribute to depression of the micro-galvanic couples. The corrosion rates were observed as 0.16 and 0.034 mpy corresponding to 3.5 and 2.5 wt% of NaCl corresponding to 2.5 wt% of cerium oxide. Moreover, the formation of cerium oxide and Al enrichment film over the surface of hybrid composites was also found to be main key factor for the inhibition of corrosion resistance. Another key factor that inhibits the further corrosion was observed as hydrophobicity between the aluminium liquid matrix and Al2O3/SiC reinforcement after incorporation of cerium oxide. Improvement in hydrophobicity of composites with Al2O3/SiC is due to increase in contact angle up to 100.78° after addition of 2.5 wt% cerium oxide. Micro-hardness and impact strength of the hybrid composites improved significantly after addition of traces amount of REOs from 0.5 to 2.5 wt%.","PeriodicalId":20663,"journal":{"name":"Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture","volume":null,"pages":null},"PeriodicalIF":1.9000,"publicationDate":"2024-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1177/09544054231222048","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, MANUFACTURING","Score":null,"Total":0}

引用次数: 0

Abstract

A new kind Al-6061/SiC/Al2O3 hybrid composite was prepared with traces amount of cerium oxide and its corrosion performance was evaluated by potentio-dynamic polarization electrochemical method. A new kind of intermetallic (γ-phase) has been observed in the microstructure with higher content of cerium oxide and Al elements. The corrosion resistance of Al-6061 alloy improved with addition of cerium oxide and this improvement could attribute to depression of the micro-galvanic couples. The corrosion rates were observed as 0.16 and 0.034 mpy corresponding to 3.5 and 2.5 wt% of NaCl corresponding to 2.5 wt% of cerium oxide. Moreover, the formation of cerium oxide and Al enrichment film over the surface of hybrid composites was also found to be main key factor for the inhibition of corrosion resistance. Another key factor that inhibits the further corrosion was observed as hydrophobicity between the aluminium liquid matrix and Al2O3/SiC reinforcement after incorporation of cerium oxide. Improvement in hydrophobicity of composites with Al2O3/SiC is due to increase in contact angle up to 100.78° after addition of 2.5 wt% cerium oxide. Micro-hardness and impact strength of the hybrid composites improved significantly after addition of traces amount of REOs from 0.5 to 2.5 wt%.

查看原文本刊更多论文

Al-6061/SiC/Al2O3 混合复合材料铈诱导疏水表面的腐蚀抑制分析

制备了一种含有微量氧化铈的新型 Al-6061/SiC/Al2O3 混合复合材料，并通过电位动力极化电化学方法对其腐蚀性能进行了评估。在氧化铈和铝元素含量较高的微观结构中观察到了一种新的金属间化合物（γ 相）。添加氧化铈后，Al-6061 合金的耐腐蚀性能得到改善，这可能是由于微观电偶的抑制作用。观察到的腐蚀速率分别为 0.16 和 0.034 mpy，对应于 3.5 和 2.5 wt%的氯化钠，对应于 2.5 wt%的氧化铈。此外，在混合复合材料表面形成氧化铈和铝富集膜也是抑制耐腐蚀性的主要关键因素。另一个抑制进一步腐蚀的关键因素是加入氧化铈后铝液基体与 Al2O3/SiC 增强材料之间的疏水性。添加 2.5 wt% 的氧化铈后，接触角增加到 100.78°，从而改善了 Al2O3/SiC 复合材料的疏水性。添加 0.5 至 2.5 wt%的微量 REO 后，混合复合材料的微硬度和冲击强度显著提高。

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

Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 工程技术-工程：机械

CiteScore

5.10

自引率

30.80%

发文量

167

审稿时长

5.1 months

期刊介绍： Manufacturing industries throughout the world are changing very rapidly. New concepts and methods are being developed and exploited to enable efficient and effective manufacturing. Existing manufacturing processes are being improved to meet the requirements of lean and agile manufacturing. The aim of the Journal of Engineering Manufacture is to provide a focus for these developments in engineering manufacture by publishing original papers and review papers covering technological and scientific research, developments and management implementation in manufacturing. This journal is also peer reviewed. Contributions are welcomed in the broad areas of manufacturing processes, manufacturing technology and factory automation, digital manufacturing, design and manufacturing systems including management relevant to engineering manufacture. Of particular interest at the present time would be papers concerned with digital manufacturing, metrology enabled manufacturing, smart factory, additive manufacturing and composites as well as specialist manufacturing fields like nanotechnology, sustainable & clean manufacturing and bio-manufacturing. Articles may be Research Papers, Reviews, Technical Notes, or Short Communications.