烧结温度和烧结时间对Al 99.9/GNP复合材料显微组织、硬度和磨损性能的影响

IF 1.4 4区材料科学 Q3 MATERIALS SCIENCE, CERAMICS

Science of Sintering Pub Date : 2023-01-01 DOI:10.2298/sos2301029p

M. Pul, U. Erdem, Onur Pehlivanli

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引用次数: 1

摘要

研究了粉末冶金法制备的以Al 99.9为基体的石墨烯纳米板增强复合材料的显微组织、硬度和磨损性能。在烧结过程中采用了不同的温度和时间。复合材料的硬度随烧结温度和时间的增加而增加。硬度值随GNP配筋率的增加而降低。随着烧结温度和烧结时间的增加，磨损量减小。随着国民生产总值增强率的增加，磨损损失也有所减少。结果表明，在复合材料结构中加入GNP增强元件，通过具有一定的润滑作用来降低摩擦系数和磨损损失。结果表明，随着烧结温度和烧结时间的增加，Al 99.9基体晶粒间的颈状和键结形成得到改善。结果表明，随着晶间键的发展，复合材料的孔隙率降低，力学性能提高。

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The effect of sintering temperature and time on microstructure, hardness and wear behaviors of Al 99.9/GNP composites

In this study, it was aimed to investigate the microstructure, hardness and wear behavior of graphene nanoplate (GNP) reinforced composites with Al 99.9 matrix produced by powder metallurgy. Different temperatures and times were applied in the sintering process. The hardness values of the composites increased as the sintering temperature and time increased. The hardness values decreased with the increase of GNP reinforcement ratio. The wear losses decreased depending on the increase in sintering temperature and time. With the increase in the GNP reinforcement ratio, reductions in wear losses were recorded. It has been concluded that the GNP reinforcement element in the composite structure reduces the friction coefficient and wear losses by having some lubricating effect. It was observed that the neck and bonding formation between Al 99.9 matrix grains improved with increasing sintering temperature and time. It was concluded that with the development of intergranular bonds, the porosity in the composite structure decreased and the mechanical properties increased.

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来源期刊

Science of Sintering 工程技术-材料科学：硅酸盐

CiteScore

2.50

自引率

46.70%

发文量

审稿时长

3.3 months

期刊介绍： Science of Sintering is a unique journal in the field of science and technology of sintering. Science of Sintering publishes papers on all aspects of theoretical and experimental studies, which can contribute to the better understanding of the behavior of powders and similar materials during consolidation processes. Emphasis is laid on those aspects of the science of materials that are concerned with the thermodynamics, kinetics and mechanism of sintering and related processes. In accordance with the significance of disperse materials for the sintering technology, papers dealing with the question of ultradisperse powders, tribochemical activation and catalysis are also published. Science of Sintering journal is published four times a year. Types of contribution: Original research papers, Review articles, Letters to Editor, Book reviews.