Wear resistance of nickel-fly ash composite coatings
TL;DR: In this paper, the wear rates of nickel-fly ash composite coatings on mild steel have been measured for unlubricated rubbing against a rotating hardened steel disc, and wear losses of composite composites were lower than those of nickel coating.
About: This article is published in Wear.The article was published on 1991-04-30. It has received 22 citations till now. The article focuses on the topics: Fly ash & Hardened steel.
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TL;DR: In this paper, the use of fly ash as a value-added product beyond incorporation in construction materials is reviewed with the aim of looking at new areas that will expand the positive reuse of Fly Ash, thereby helping to reduce the environmental and economic impacts of disposal.
Abstract: The disposal of fly ash from coal-fired power stations causes significant economic and environmental problems. A relatively small percentage of the material finds application as an ingredient in cement and other construction products, but the vast majority of material generated each year is held in ash dams or similar dumps. This unproductive use of land and the associated long-term financial burden of maintenance has led to realization that alternative uses for fly ash as a value-added product beyond incorporation in construction materials are needed. Utilization of fly ash in such areas as novel materials, waste management, recovery of metals and agriculture is reviewed in this article with the aim of looking at new areas that will expand the positive reuse of fly ash, thereby helping to reduce the environmental and economic impacts of disposal.
347 citations
TL;DR: In this article, a new class of copper based composite material by dispersing both hard and soft reinforcement in appropriate proportions to ensure optimum tribological characteristics was developed by liquid metallurgy route and the results show that the hybrid composites possess higher hardness, higher tensile strength, better wear resistance and lower coefficient of friction when compared to pure copper.
175 citations
TL;DR: In this paper, the authors present a review on the state-of-the-art in the utilization of industrial and agricultural waste materials for the development of metal-matrix composites (MMCs), providing an insight into the challenges and opportunities for the exploitation to their full potential.
Abstract: In this contribution, authors present a review on the state-of-the-art in the utilization of industrial and agricultural waste materials for the development of metal–matrix composites (MMCs), providing, through the judicious analysis of an ample and varied references source – from the oldest to the newest ones – an insight into the challenges and opportunities for the exploitation to their full potential. In addition to its topicality, the novelty of this contribution lies in the presentation of key statistical, technical, and property-related information of a comprehensive variety of waste materials classed into two main groups, namely, fly ash reinforced MMCs and MMCs derived from other waste materials. Although fly ash has been exploited in a broad range of applications, the attention paid for its use in the development of MMCs seems to be insufficient. A purposely designed chart helped to pinpoint the more demanding and profitable applications of fly ash, and establish strategic opportunity ar...
158 citations
Cites background from "Wear resistance of nickel-fly ash c..."
...…are some commonly employed means by which Al/FA composites are fabricated (Chew et al., 2011; Huang et al., 2011; Jailani et al., 2009; Jiang et al., 2012; Luong et al., 2011b; Marin et al., 2012; Ramesh et al., 1991; Rohatgi et al., 2009, 1994; Uju and Oguocha, 2012; Zahi and Daud, 2011)....
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TL;DR: In this paper, the authors investigated the wear performance of Alloy-Based Metal Matrix Composites (MMCs) by liquid metallurgy route and found that increased contents of TiO2 resulted in higher hardness and lower wear coefficient of composites under identical test conditions.
157 citations
TL;DR: In this paper, the authors investigated the electroless Cu coating of fly-ash cenosphere particles in detail using focused ion beam spectroscopy (FIB) and X-ray diffraction.
156 citations
References
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TL;DR: In this paper, wear rates of cast graphitic aluminium-silicon-nickel alloys were lower than those of pure Al, Al-Si and AlSi-Ni alloys especially above pressures of 0.02 kg/mm2.
94 citations
TL;DR: In this article, it was shown that the transition from severe to mild wear and the wear rate of 0.45 wt.% C steel pairs in dry friction were sensitive functions of the normal damping coefficient of the loading system.
10 citations