Study on fretting behavior of rubber O-ring seal in high-pressure gaseous hydrogen

Zhou, Chilou; Chen, Guohua; Xiao, Shuhu; Hua, Zhengli; Gu, Chaohua

doi:10.1016/j.ijhydene.2019.02.224

Cited by 39 publications

(23 citation statements)

References 29 publications

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“…In general, further improvements of characterization techniques and facilities of in-situ tribological experimental set-ups are needed to get a deeper understanding on influencing parameters of wear and friction behavior of polymers exposed to high-pressure hydrogen conditions. Zhou et al [131] studied the fretting behavior of rubber O-rings using an NBR grade exposed to high-pressure hydrogen (up to 100 MPa) and developed a numerical model describing the influence of hydrogen swelling on the fretting characteristic in terms of contact pressure and von Mises stress. They revealed that higher fretting damages are expected when the amplitude of reciprocating amplitude is higher and this occurs with an increasing swelling behavior of the sealing material as a result of gas exposure.…”

Section: Aging Of Thermoplastics In High-pressure Hydrogenmentioning

confidence: 99%

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A Review on Applicability, Limitations, and Improvements of Polymeric Materials in High-Pressure Hydrogen Gas Atmospheres

et al. 2021

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Typically, polymeric materials experience material degradation and damage over time in harsh environments. Improved understanding of the physical and chemical processes associated with possible damage modes intended in high-pressure hydrogen gas exposed atmospheres will help to select and develop materials well suited for applications fulfilling future energy demands in hydrogen as an energy carrier. In high-pressure hydrogen gas exposure conditions, damage from rapid gas decompression (RGD) and from aging in elastomeric as well as thermoplastic material components is unavoidable. This review discusses the applications of polymeric materials in a multi-material approach in the realization of the "Hydrogen economy". It covers the limitations of existing polymeric components, the current knowledge on polymeric material testing and characterization, and the latest developments. Some improvements are suggested in terms of material development and testing procedures to fill in the gaps in existing knowledge in the literature.

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Section: Aging Of Thermoplastics In High-pressure Hydrogenmentioning

confidence: 99%

“…They revealed that higher fretting damages are expected when the amplitude of reciprocating amplitude is higher and this occurs with an increasing swelling behavior of the sealing material as a result of gas exposure. [131]…”

Section: Aging Of Thermoplastics In High-pressure Hydrogenmentioning

confidence: 99%

A Review on Applicability, Limitations, and Improvements of Polymeric Materials in High-Pressure Hydrogen Gas Atmospheres

et al. 2021

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“…These studies contribute to the understanding of the tribological characteristics of polymers under hydrogen gas. For elastomers, in situ tribological experiments under high-pressure hydrogen have been actively conducted in the last few years [ 21 , 22 , 23 , 24 , 25 ]. Experiments on various types of rubber have been conducted; however, only a few studies were conducted on fillers contained in rubber [ 25 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Functional Fillers on Tribological Characteristics of Acrylonitrile Butadiene Rubber after High-Pressure Hydrogen Exposures

et al. 2022

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In a high-pressure hydrogen environment, the sealing rubber material is swelled by hydrogen, and the mechanical and tribological properties are reduced, causing various problems in the sealing performance. The focus of this study was the effect of the filler type and content on the tribological characteristics of rubber after exposure to high-pressure hydrogen. Acrylonitrile butadiene rubber specimens were exposed to high-pressure hydrogen at 96.6 MPa, and the change in the amount of wear with time after exposure was observed. The wear test was performed using a pin-on-disc ball tip to measure the amount of wear before and after hydrogen exposure of the materials under fixed revolutions per minute and normal load. Scanning electron microscopy was used to observe the wear track and cross section of the specimen to examine the changes in the wear mechanism after hydrogen exposure and to analyze the wear mechanism for each filler. The results of this study are expected to contribute to the evaluation of the tribological properties of the sealing materials used in hydrogen environments.

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“…Guo et al [ 12 ] described an experimental study on the fretting wear behavior and tribological mechanism between rubber and concrete in the process of pipeline laying. Zhou et al [ 13 ] studied the fretting wear behavior of the rubber O-ring seal considering the effect of hydrogen swelling.…”

Section: Introductionmentioning

confidence: 99%

Fretting Wear Behavior of Three Kinds of Rubbers under Sphere-On-Flat Contact

Zhang

Shu

et al. 2021

Materials

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Rubbers are widely used in various fields as the important sealing materials, such as window seal, door seal, valve, pump seal, etc. The fretting wear behavior of rubbers has an important effect on their sealing performance. This paper presents an experimental study on the fretting wear behavior of rubbers against the steel ball under air conditions (room temperature at 20 ± 2 °C and humidity at 40%). Three kinds of rubbers, including EPDM (ethylene propylene diene monomer), FPM (fluororubber), and NBR (nitrile–butadiene rubber), are considered in experiments. The sphere-on-flat contact pattern is used as the contact model. The influences of the displacement amplitude, normal force, frequency, and rubber hardness on the fretting wear behavior are discussed in detail. White light profiler and scanning electron microscope (SEM) are used to analyze the wear mechanism of the rubber surface. The fretting wear performances of three rubbers are compared by considering the effect of the displacement amplitude, normal force, frequency, and rubber hardness. The results show that NBR has the most stable friction coefficient and the best wear resistance among the three rubbers.

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Study on fretting behavior of rubber O-ring seal in high-pressure gaseous hydrogen

Cited by 39 publications

References 29 publications

A Review on Applicability, Limitations, and Improvements of Polymeric Materials in High-Pressure Hydrogen Gas Atmospheres

A Review on Applicability, Limitations, and Improvements of Polymeric Materials in High-Pressure Hydrogen Gas Atmospheres

Effect of Functional Fillers on Tribological Characteristics of Acrylonitrile Butadiene Rubber after High-Pressure Hydrogen Exposures

Fretting Wear Behavior of Three Kinds of Rubbers under Sphere-On-Flat Contact

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