Hot compression behaviour and microstructural evolution in aluminium based composites: an assessment of the role of reinforcements and deformation parameters

IF 1.9 Q3 ENGINEERING, MANUFACTURING Manufacturing Review Pub Date : 2021-01-01 DOI:10.1051/MFREVIEW/2021004

S. Babalola, K. Alaneme, S. R. Oke, L. Chown, N. Maledi, M. Bodunrin

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引用次数: 2

Abstract

The response of two different types of aluminium matrix composites (AMCs) reinforced with silicon carbide ceramic particulates or nickel metallic particulates to hot compression testing parameters was evaluated. The composites were produced via two-step stir-casting technique. Axisymmetric compression testing was performed on the samples at different deformation temperatures of 220 and 370 °Ϲ, 0.5 and 5 s−1 strain rates and total strains of 0.6 and 1.2. The initial and post-deformed microstructures were studied using optical and scanning electron microscopy. The results show that flow stress was significantly influenced by imposed deformation parameters and the type of reinforcements used in the AMCs. Nickel particulate reinforced aluminium matrix composite (AMC) showed superior resistance to deformation in comparison with silicon carbide reinforced AMC under the different testing conditions. In both AMCs, work hardening, dynamic recovery and dynamic recrystallisation influenced their response to imposed parameters. The signature of dynamic recrystallisation was very apparent in aluminium matrix composite reinforced with nickel particulates.

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铝基复合材料的热压缩行为和微观结构演变:增强和变形参数作用的评估

研究了碳化硅陶瓷颗粒增强铝基复合材料和金属镍颗粒增强铝基复合材料对热压缩试验参数的响应。采用两步搅拌铸造工艺制备复合材料。在220°和370°Ϲ、0.5和5 s−1应变速率、0.6和1.2总应变下对试样进行轴对称压缩试验。用光学显微镜和扫描电镜研究了变形前后的微观组织。结果表明，施加的变形参数和增强材料的种类对流变应力有显著影响。在不同的试验条件下，与碳化硅增强铝基复合材料相比，镍颗粒增强铝基复合材料表现出更强的抗变形能力。在这两种amc中，加工硬化、动态恢复和动态再结晶都会影响它们对施加参数的响应。镍颗粒增强铝基复合材料的动态再结晶特征非常明显。

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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.