液体冶金法制备高耐磨性AA7075/AL2O3复合材料

Q3 Chemical Engineering

International Journal of Applied Mechanics and Engineering Pub Date : 2022-12-01 DOI:10.2478/ijame-2022-0060

R. Sivaraman, A. Jalil, S. Aravindhan, Zhaoshuai Nan, M. H. Vini, S. Daneshmand

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引用次数: 3

摘要

摘要:采用液相冶金法制备了AA7075/Al2O3复合材料。以AA7075合金为基体，以Al2O3颗粒为增强剂。然后，在AA7075基体中加入3 wt. %和6 wt. %的Al2O3细分物。为了改善润湿性和分布，对每个复合材料样品将增强颗粒预热到550℃。用硬化的EN32钢圆盘作为反端面来评估销对盘的磨损率。结果表明:AA/Al2O3复合材料的磨损率比单片AA7075试样的磨损率小;最后，对试样的磨损表面进行了扫描电镜观察。

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Fabrication of a High Wear Resistance AA7075/AL2O3 Composites Via Liquid Metallurgy Process

Abstract In the present study, AA7075/Al2O3 composites have been fabricated via liquid metallurgy process. AA7075 alloy and Al2O3 particles were taken as the base matrix and reinforcements, respectively. Then, contents of 3 and 6 wt. % of Al2O3 subdivisions were added into the AA7075 matrix. To improve wettability and distribution, reinforcement particles were pre-heated to a temperature of 550°C for each composite sample. A hardened EN32 steel disc as the counter face was used to evaluate the wear rate pin-on-disc. The results showed that the wear rate of the AA/Al2O3 composites was smaller than that of the monolithic AA7075 samples. Finally, the worn surfaces of samples were investigated by SEM.

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来源期刊

International Journal of Applied Mechanics and Engineering Engineering-Civil and Structural Engineering

CiteScore

1.50

自引率

0.00%

发文量

审稿时长

35 weeks

期刊介绍： INTERNATIONAL JOURNAL OF APPLIED MECHANICS AND ENGINEERING is an archival journal which aims to publish high quality original papers. These should encompass the best fundamental and applied science with an emphasis on their application to the highest engineering practice. The scope includes all aspects of science and engineering which have relevance to: biomechanics, elasticity, plasticity, vibrations, mechanics of structures, mechatronics, plates & shells, magnetohydrodynamics, rheology, thermodynamics, tribology, fluid dynamics.