Studies on corrosion behaviour of sintered aluminium based composites in chloride environment

IF 1.9 Q3 ENGINEERING, MANUFACTURING

Manufacturing Review Pub Date : 2021-01-01 DOI:10.1051/mfreview/2021021

S. O. Akinwamide, M. Lesufi, O. J. Akinribide, B. J. Babalola, P. Olubambi

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引用次数: 3

Abstract

Aluminium matrix composites have been developed to replace other conventional engineering materials in specific industries where enhanced properties are required. The corrosion susceptibility of sintered unreinforced aluminium and composites in chloride medium (AMCs) were studied. The powders of pure as-received aluminium (matrix) and particles of ferrotitanium and silicon carbide particles were homogeneously dispersed using ball milling technique. Powder metallurgy route was utilised for consolidating the milled powders into a sintered compact. Microstructural examination of the compacted pure aluminium and composites confirmed an even distribution of the reinforcements in the aluminium matrix. The produced composites also recorded an improved corrosion resistance in a corrosive medium of 3.5 wt.% laboratory prepared sodium chloride, from the potentiodynamic polarization and chronoamperometry (potentiostatic) tests. The corroded specimens were further assessed for pitting using a field emission scanning electron microscope (FE-SEM). The resistance of the fabricated samples to corrosion was improved upon the addition of TiFe and SiC reinforcements.

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烧结铝基复合材料在氯化物环境中的腐蚀行为研究

铝基复合材料已经被开发出来，在需要增强性能的特定工业中取代其他传统工程材料。研究了烧结非增强铝及其复合材料在氯化物介质中的腐蚀敏感性。采用球磨技术将纯铝(基体)粉末、钛铁颗粒和碳化硅颗粒均匀分散。采用粉末冶金的方法将研磨后的粉末固结成烧结体。对压实后的纯铝和复合材料进行显微组织检查，证实了铝基体中增强元素的均匀分布。所生产的复合材料在3.5 wt腐蚀性介质中的耐腐蚀性也有所提高。实验室制备的氯化钠，从动电位极化和计时安培(恒电位)试验。用场发射扫描电镜(FE-SEM)进一步评估腐蚀试样的点蚀。添加fe和SiC增强剂后，制备样品的耐腐蚀性能得到了提高。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Manufacturing Review ENGINEERING, MANUFACTURING-

CiteScore

5.40

自引率

12.00%

发文量

审稿时长

8 weeks

期刊介绍： The aim of the journal is to stimulate and record an international forum for disseminating knowledge on the advances, developments and applications of manufacturing engineering, technology and applied sciences with a focus on critical reviews of developments in manufacturing and emerging trends in this field. The journal intends to establish a specific focus on reviews of developments of key core topics and on the emerging technologies concerning manufacturing engineering, technology and applied sciences, the aim of which is to provide readers with rapid and easy access to definitive and authoritative knowledge and research-backed opinions on future developments. The scope includes, but is not limited to critical reviews and outstanding original research papers on the advances, developments and applications of: Materials for advanced manufacturing (Metals, Polymers, Glass, Ceramics, Composites, Nano-materials, etc.) and recycling, Material processing methods and technology (Machining, Forming/Shaping, Casting, Powder Metallurgy, Laser technology, Joining, etc.), Additive/rapid manufacturing methods and technology, Tooling and surface-engineering technology (fabrication, coating, heat treatment, etc.), Micro-manufacturing methods and technology, Nano-manufacturing methods and technology, Advanced metrology, instrumentation, quality assurance, testing and inspection, Mechatronics for manufacturing automation, Manufacturing machinery and manufacturing systems, Process chain integration and manufacturing platforms, Sustainable manufacturing and Life-cycle analysis, Industry case studies involving applications of the state-of-the-art manufacturing methods, technology and systems. Content will include invited reviews, original research articles, and invited special topic contributions.