Friction and dry sliding wear properties of compact graphite iron at room temperature and 100 °C

Rao, S. Venugopal; Venkataramana, M.; Kumar, Amit

doi:10.1016/j.matpr.2020.12.385

Cited by 5 publications

(4 citation statements)

References 10 publications

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“…When the oxide layer on the worn surface is relatively thin, its expanding stress is insufficient to cause shedding. In this state, the oxide layer provides a certain level of protection to the worn surface [16,[24][25][26]. However, during the friction wear process, the oxide layer can be damaged, leading to a loss of its protective effect [27,28].…”

Section: Analysis and Discussionmentioning

confidence: 99%

“…Oxygen element analysis on the wear surfaces, shown in figure 7, reveals heavy oxidation in the smooth areas, indicating the formation of an oxide layer. In contrast, the rough area is caused by the shedding of the oxide layer in the smooth area [16,18,19]. It can be seen that the wear mechanisms of the materials are fatigue wear and surface oxidation wear.…”

Section: Friction Coefficient and Wear Loss Analysismentioning

confidence: 99%

“…Research on the friction and wear of gray cast iron materials at different temperatures is also somewhat limited. Studies have shown that the oxide film formed on the wear surface and the temperature of the wear surface can have a significant impact on the friction and wear of gray cast iron [15,16], but there is little mention of oxidative wear at higher temperatures and the friction and wear of high carbon content gray cast iron at different temperatures.…”

Section: Introductionmentioning

confidence: 99%

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Study on friction and wear behavior of gray cast iron with different carbon content at different temperatures

Chen,

Wang,

Yan

et al. 2024

Mater. Res. Express

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In this paper, the friction and wear properties of gray cast iron with different carbon content at different ambient temperatures and the failure forms of gray cast iron friction and wear are studied. The research concludes that under low-temperature wear conditions, the graphite in the gray cast iron structure can enter into the interface between the friction pair, have a lubricating effect on the wear surface, and reduce the friction coefficient and wear loss of the gray cast iron material. As the graphite content in the gray cast iron structure increases, the lubrication and protection effect of the graphite increases, and the wear failure of gray cast iron is mainly caused by plastic deformation-induced fatigue peeling. Under high-temperature wear conditions, an oxide layer gradually forms on the wear surface. With the increase of experiment temperature, the thickness of the oxide layer increases on the wear surface. When the oxide layer formed on the wear surface reaches a certain level of thickness, the internal expansion stress of the oxide layer increases considerably, causing the oxide layer to peel off and increase the roughness of the wear surface, friction coefficient, and wear loss. Additionally, with the increase of the graphite content in the gray cast iron structure, the surface is more prone to oxidation, leading to the increase of friction coefficient and wear loss. The wear failure of gray cast iron is mainly caused by oxidation layer peeling.

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Section: Analysis and Discussionmentioning

confidence: 99%

Section: Friction Coefficient and Wear Loss Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Study on friction and wear behavior of gray cast iron with different carbon content at different temperatures

Chen,

Wang,

Yan

et al. 2024

Mater. Res. Express

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“…While the quenching process hardens CGI following austenitization, tempering is used to relieve the internal tensions at the operation's end. The tempering conditions can be optimized to achieve the best wear resistance [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

A Comparative Investigation on the Wear Performance of Compacted Graphite Iron (CGI) Treated with Single and Double Tempering

Tan

2022

International Journal of Innovative Engineering Applications

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Original scientific paperCompacted graphite iron (CGI) is a critical material in today's automotive and manufacturing industries. Heat treatment processes can improve CGI wear properties, related primarily to microstructural changes. In this study, single and double tempering heat treatments were carried out to improve the wear properties of CGI. Oil quenching was performed after 90 minutes of austenitization at 900°C, followed by 60 minutes of single and double tempering at three different temperatures (315, 350, and 375°C). The wear performance of the samples was compared using a pin-on disc test and hardness measurements. The volume loss and friction coefficient were evaluated, and wear maps were constructed to determine the samples' wear behavior. SEM and EDS analyses were carried out to worn surfaces to interpret the wear mechanisms. According to the study's findings, double tempering heat treatment may optimize wear performance better than traditional single tempering, and structures with high toughness-wear resistance combinations can be obtained.

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Effect of Elemental Segregation on the Microstructure and Mechanical Properties of Heavy Section Compacted Graphite Iron

Cai

Chen

et al. 2022

Inter Metalcast

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Friction and dry sliding wear properties of compact graphite iron at room temperature and 100 °C

Cited by 5 publications

References 10 publications

Study on friction and wear behavior of gray cast iron with different carbon content at different temperatures

Study on friction and wear behavior of gray cast iron with different carbon content at different temperatures

A Comparative Investigation on the Wear Performance of Compacted Graphite Iron (CGI) Treated with Single and Double Tempering

Effect of Elemental Segregation on the Microstructure and Mechanical Properties of Heavy Section Compacted Graphite Iron

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