Wear behavior of graphite IG-11 in different gas environments

An SRV friction and wear tester was performed to evaluate the wear behavior of graphite IG-11 used in 10 MW high temperature gas-cooled reactor (HTR-10) in sliding against graphite and stainless ...

Wear of graphite pebbles modeled using a macroscopic …

DOI: 10.1016/j.powtec.2019.11.075 Corpus ID: 212899871; Wear of graphite pebbles modeled using a macroscopic particle model in a pneumatic transport lifting pipe @article{Sun2020WearOG, title={Wear of graphite pebbles modeled using a macroscopic particle model in a pneumatic transport lifting pipe}, author={Qi Sun and Ping Ye and …

Nuclear graphite wear properties and estimation of graphite …

IG-11 graphite, used in the 10MW high temperature gas-cooled test reactor (HTR-10), was tested under different temperatures on an SRV standard wear performance tester.

Formation of transfer layer and its effect on friction and wear …

They observed an amorphous layer of compressed debris within the wear tracks of both the materials, but the layer on the surface of higher-modulus-resin-filled-carbon (steady state wear rate of 5.52 × 10 −7 mm 3 /N m) was significantly thinner than that on softer-electro-graphite material (steady state wear rate of 1.56 × 10 −6 mm 3 /N …

An experimental study on the effect of graphite …

This article comprehensively discusses the mechanical and tribological properties of epoxy matrix composites filled with 100μm graphite particulates, at loadings ranging from 0 to 1wt%. The investigation also focuses on the effects of the graphite filler on the wear surface of the specimens, utilizing an optical microscope for analysis. The …

(PDF) A Friction-Dissipation Based Method for Quantity …

Zhang et al. [25] investigated graphite wear under the dry friction condition and predicted the relationship between frictional dissipation and wear based on graphite/ WC-Ni pairs. Luo et al. [26 ...

Machines | Free Full-Text | Study on Wear Properties of the Graphite …

At a flow rate of 4 m/s, the maximum wear depth of the seal's surface is 8.14 × 10 −8 mm, and the simulation time is 1 s, then the maximum wear rate of graphite can be calculated as 2.567 mm/a. A year of erosive wear on the graphite-sealing surface under full open working conditions will result in a wear depth of 2.567 mm;

Wear of graphite pebbles modeled using a macroscopic particle model …

Temperature effect on IG-11 graphite wear performance. Nucl. Eng. Des., 235 (2005), pp. 2261-2274. View PDF View article View in Scopus Google Scholar [9] X. Luo, S. Yu, Z. Zhang, S. He. Estimation of graphite dust quantity and size distribution of graphite particle in HTR-10. Nucl.

Wear and mechanical characteristics of Al 7075/graphite …

The wear rate of the base alloy and its composites with varying graphite content is shown in Fig. 5.The wear rate decreases with increasing graphite content and it was found to be minimum at 5 wt.% graphite as compared to other compositions.Beyond 5 wt.%, the wear rate increases and it was found to be less than that of the matrix …

Current-Carrying Wear Behavior of Bi-Containing Graphite…

The results show that the mechanical and current-carrying wear properties of the Bi-containing graphite/copper-matrix composite are comparable with those of lead-containing graphite/copper-matrix composites, indicating a potential pantograph slider alternative. ... (11), p 2742–2751. Article CAS Google Scholar Download references ...

Humidity-dependent lubrication of highly loaded contacts by graphite …

Wear tracks are further analyzed using scanning electron microscopy (SEM); see Fig. 3. At low loads, wear on the graphite is barely visible (in Fig. 3a only flattening of the roughness peaks is ...

Understanding the intrinsic water wettability of graphite

Abstract. We report the effect of airborne hydrocarbon contamination on the water wettability of graphite. Graphite is traditionally known to be hydrophobic with water contact angle (WCA) within the 75–95° range. We found that the WCA of highly ordered pyrolytic graphite (HOPG) was 64.4 ± 2.9° when measured within 10 s after exfoliation …

Temperature effect on IG-11 graphite wear performance

Made available by U.S. Department of Energy Office of Scientific and Technical Information ...

Nuclear graphite wear properties and estimation of graphite …

DOI: 10.1016/J.NUCENGDES.2017.02.016 Corpus ID: 114726677; Nuclear graphite wear properties and estimation of graphite dust production in HTR-10 @article{Luo2017NuclearGW, title={Nuclear graphite wear properties and estimation of graphite dust production in HTR-10}, author={Xiaowei Luo and Xiaoxin Wang and Li Shi …

A study on wear behaviour of Al/6101/graphite composites

Fig. 11 shows the variation of wear rate with sliding speed, it is revealed that the wear rate of AMCs reinforced with graphite reinforcement particles reduces with an linear rise in sliding speed and wear rate was found to be optimum at 4 wt.% of graphite in comparasion with other manufactured AMCs.

Navigating the World of Bronze Wear Plates and Graphite

The embedded graphite acts as a lubricant, reducing friction and wear, and thus extending the life of the component and the machinery it supports. Comparative Analysis

A study on wear behaviour of Al/6101/graphite composites

Fig. 11 shows the variation of wear rate with sliding speed, it is revealed that the wear rate of AMCs reinforced with graphite reinforcement particles reduces with an …

Wear behavior of graphite studies in an air-conditioned …

The wear result under line contact is shown in Fig. 3.The average wear rate was 1.02×10 −6 g/m for load=31 N. The wear rate was 1.99×10 −6 g/m for load=62 N which was greater than that for load=31 N. Fig. 3 shows that graphite wear weight loss is linear with wear length. During wear process, the contact line was worn and broaden, so the …

Dry friction and wear characteristics of impregnated graphite in …

The impregnated graphite, which friction coefficient is stable and graphitization degree is in mid level, such #2, is more appropriate to have a work in the corrosion conditions. ... Wear, 2009, 266(11–12): 1141–1154. Article Google Scholar ROE M, TORRANCE A. The surface failure and wear of graphite seals[J]. Tribology ...

Temperature effect on IG-11 graphite wear performance

Temperature effect on IG-11 graphite wear performance @article{Luo2005TemperatureEO, title={Temperature effect on IG-11 graphite wear performance}, author={Xiaowei Luo …

Improvement in the graphite electrode wear characteristic …

On comparing the present graphite wear based on the thermal conductivity, the graphite electrode (λ = 95 W/m.k) was used for machining on Nimonic 90 (λ = 11.47 W/m.k). The result found that a graphite electrode produced a high wear due to the high erosion rate of graphite.

Effect of Graphite Particle Reinforcement on Dry Sliding Wear …

The inclusion of graphite as a solid lubricant is beneficial for dry sliding and is observed to minimize friction and wear when a continuous C tribofilm is formed at the sliding interface [10][11 ...

Wear Strips > Bronze Wear Strips

Bronze Wear Strips - Graphite. These components are made of solid aluminum bronze and come with self-lubricating graphite. Standard sizes are shown. If a standard won't do, SelfLube can make custom sizes. Please call to verify specifications. Minimum thickness is .250" (.375" for steel); max width is 8"; max length is 40". View Spec Sheet

Wear and mechanical characteristics of Al 7075/graphite …

The wear rate decreases with addition of graphite content and reaches its minimum at 5 wt.% graphite. The wear mass loss was found to decrease with increasing sliding distance. ... [10] and reduced temperature rise [11] at the wearing contact surface. Earlier researchers have reported that during dry sliding the metal/Graphite composites ...

Self-lubrication of nuclear graphite in argon at high …

Tribology studies in argon of nuclear graphite previously degassed at 600 °C show lower friction and wear at 600 °C than at room-temperature: the COF decreases from 0.55(14) to 0.33(5) and the specific wear rate decreases from 0.4(3) to 0.06(3) μ g/Nm. Microstructural characterization of the wear spots via digital, polarized, and electron …

Temperature effect on IG-11 graphite wear performance

Abstract. IG-11 graphite, used in the 10 MW high temperature gas-cooled test reactor (HTR-10), was tested under different temperatures on an SRV standard wear …

[PDF] Wear Properties of Nuclear Graphite IG-110 at Elevated

In this study, the wear characteristics of the isotropic graphite IG-110 used in HTR-10 were evaluated. The reciprocating wear test was carried out for graphite …

Influence of a carbon-based tribofilm induced by the friction

The friction coefficient and wear depth of impregnated graphite reduced by 68% and 75%, respectively, at a high temperature of 160 °C compared with those of non-impregnated graphite. The significant properties of the impregnated graphite can be attributed to a transferred carbon-based tribofilm with an ordered structure induced by …

Role of transferred layers in friction and wear for …

Table 1 shows the friction coefficient (μ) variations of the steel XC48/graphite couple and the graphite wear as a function of the gaseous environment with and without magnetic field.It appears that in air, the applied magnetic field leads to a decrease of the mean value of the friction coefficient μ from μ O =0.32 to μ H =0.2. On …

Investigation of anti-wear and extreme pressure properties …

The tribological behavior of graphite and Ag nanoparticles as solid additive to base oil was evaluated on a four-ball test machine and a disc-on-disc tribotester and it is found that Ag nanoparticle have better anti-wear behavior. The tribological behavior of graphite and Ag nanoparticles as solid additive to base oil was evaluated on a four-ball test machine and …

Graphite Wear Strips

Graphite Wear Strips - Plain & Self-Lubricating, L-gibs are made of solid bronze w/graphite. For standard sizing. Custom Graphite Wear Strips Manufacture - Customized Plate Solutions Enhancing Equipment Performance with Graphite Wear Strips Wear strips play a crucial role in guiding and controlling linear motion in various industrial ...

A study on wear behaviour of Al/6101/graphite composites

Besides this, wear rate also simultaneously increased with increase in the volume fraction of graphite reinforcement because of decrease in hardness and toughness of Al/Graphite composites [11, 18 2013; 24]. In various conditions, transition of wear rate from mild to severe range takes place as a result of effect of graphite content in Al ...