Mechanisms of sliding wear of metals and alloys at elevated temperatures

Pauschitz, A.; Roy, Manish; Franek, F.

doi:10.1016/j.triboint.2007.10.003

Cited by 255 publications

(92 citation statements)

References 36 publications

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“…6 that the value of l decreases with the increase in temperature. Similar behaviour of l in the case of different tribo-pairs has also been reported [23]. Highest l of 0.94 was attained at RT, and lowest l of 0.27 was obtained at 1023 K in case of N 80A as shown in Table 4, whereas in case of N 90, highest l of 0.90 was attained at RT and lowest l of 0.58 was obtained at 1023 K as shown in Table 4 (Table 5).…”

Section: Friction Coefficient (L)supporting

confidence: 84%

“…Once the CL is completely formed at the interface, the l attains a steady-state value. The mechanism of formation of MML and CL and their influence on the value of l is also illustrated in [23]. The values of l versus load of N 80A and N 90 against N 75 at 1023 K are shown in Fig.…”

Section: Friction Coefficient (L)mentioning

confidence: 95%

“…The reduction in wear has been attributed to the formations of glazed layer at the interface. Tribological studies to understand mechanism of protective glazed layer formation and its role in controlling friction and wear at high temperatures between various tribo-pairs were conducted [22][23][24][25][26][27][28]. It was observed that at elevated temperature wear behaviour of metallic materials is influenced by different types of surface layer formation.…”

Section: Introductionmentioning

confidence: 99%

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High-Temperature Friction and Wear Studies of Nimonic 80A and Nimonic 90 Against Nimonic 75 Under Dry Sliding Conditions

Khajuria

Wàňi

2017

Tribol Lett

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The present research focuses on dry sliding friction and wear behaviour of Nimonic 80A and Nimonic 90 against Nimonic 75 at high temperature up to 1023 K. The influence of temperature, sliding distance and normal load on friction and wear behaviour of Nimonic 80A and Nimonic 90 against Nimonic 75 was studied using pin (Nimonic 75)-on-disc (Nimonic 80A and Nimonic 90). Lower wear and lower friction of superalloys was observed at high temperatures, as compared to room temperature. Surface morphological and surface analytical studies of fresh and worn surfaces were carried out using optical microscopy, 3D profilometer, scanning electron microscope, energy-dispersive X-ray spectroscopy and Raman spectroscopy to understand the friction and wear behaviour. The mechanism of the formation of microscale glaze layer is also discussed.

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Section: Friction Coefficient (L)supporting

confidence: 84%

Section: Friction Coefficient (L)mentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

High-Temperature Friction and Wear Studies of Nimonic 80A and Nimonic 90 Against Nimonic 75 Under Dry Sliding Conditions

Khajuria

Wàňi

2017

Tribol Lett

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“…There are many reports on the effects of size, shape, orientation and volume fraction on the failure modus and fracture mechanism [7]. However, the literature reports the few data on effect of B4C particles as reinforced AMCs at elevated temperatures.…”

confidence: 99%

Tribological Behaviour of Aa6061 Alloy Reinforced with Boron Carbide Particles at Room and Elevated Temperature

Manohara¹

2017

IJRASET

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The present study deals with the fabrication of AA6061/boron carbide metal matrix composite and investigation on its tribological behaviour at room and elevated temperature. The composite incorporated with 0%, 1%, 2%, 3% and 4% of boron carbide was fabricated through liquid metallurgy route. The microstructure of this composite was examined and uniform distribution of reinforced particles in the matrix was observed. Wear experiments were conducted on Pin-on-disc tester at room and elevated temperature using process parameters such as applied load, sliding velocity, sliding distance, temperature; each varied for different levels. Minimum wear rate was observed for 4% B4C. Worn surface were studied using Scanning Electron Microscope to understand the wear mechanism exhibited by composites prepared. It was observed that, severe delamination occurred as applied load increases. This tribological analysis can be utilized to replace the conventional aerospace, automotive materials with other aluminium metal matrix composites having better wear characteristics.

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“…It is well known that the friction and wear of metal alloys at high temperatures are controlled by their tribochemically generated oxide films [16][17][18][19][20]. Consequently, on a hard metal substrate-formed lubricating soft oxide layer, with low shear strength, results in considerable wear reduction and sometimes a decrease of friction.…”

Section: High Temperature Self-lubricating Alloysmentioning

confidence: 99%