Enhancing the tribological and mechanical properties of M50 steel using solid lubricants – A detailed review

Essa, F.A.; Zhang, Qiaoxin; Huang, Xing‐Jiu; Ibrahim, Ahmed Mohamed Mahmoud; Ali, Mohamed Kamal Ahmed; Sharshir, Swellam W.

doi:10.1177/1350650117723224

Cited by 26 publications

(11 citation statements)

References 75 publications

(158 reference statements)

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“…9(a). Compared to the bare Ti 13 Nb 13 Zr alloy sample, the carburized samples exhibited relatively higher values because of the coarse surface structure [31]. It was also found that all curves of the carburized samples presented similar features, an initial transient state followed by a relative steady state [32].…”

Section: Tribological Propertiesmentioning

confidence: 80%

Structure, tribological properties, and the growth mechanism of in-situ generated TiC in titanium cermet

et al. 2021

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Titanium cermet combining metallic toughness with ceramic wear resistance has been proven to be a potential candidate for implanted joint material. In this work, titanium cermet was synthesized by means of the elevated temperature solid carburizing technology. The Ti13Nb13Zr alloy surface was found to be converted into TiC ceramic layer combined with a carbon strengthened diffusion zone underneath. The overall thickness of the carburized region grew to about 100 µm after 120 min carburization at 1,500 K. In order to clarify the growth behaviors of TiC ceramic layer, a growth mechanism is proposed. At the beginning of carburizing process, carbonaceous gas decomposed from carburizer due to high temperature and then converted to free atomic carbons through reduction reaction. Then, in-situ generated TiC ceramic layer possessing certain thickness formed on the surface, meanwhile, the inner carbon diffusion zone also grew inwards due to physical diffusion of carbon, and finally forming a gradient carbon distribution. In addition, the tribological behaviors of the new materials were evaluated through reciprocating ball-on-plate sliding wear tests in bovine calf serum. Although there was an increase in friction coefficient, the wear rate decreased by 59.6% due to the formation of the wear-resistant TiC ceramic layer. The wear mechanisms evolved from severe abrasive wear for bare Ti13Nb13Zr alloy to mild adhesive wear for titanium cermet.

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Section: Tribological Propertiesmentioning

confidence: 80%

Structure, tribological properties, and the growth mechanism of in-situ generated TiC in titanium cermet

et al. 2021

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“…The tribological properties of MW obtained the best results at 800 °C, where the friction recorded its minimum value of 0.29. 4. Generally speaking, the results in our study provide some suggestions to overcome the challenges when using M50 matrix composites as an MW in mechanical applications under extreme conditions.…”

Section: Resultsmentioning

confidence: 99%

Experimental Study to Improve the Tribological Behaviors of M50 Steel via WS2 Solid Lubricant under High Temperatures

Fa¹

2017

RDMS

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An experimental investigation is conducted to improve the tribological properties of M50 composites (M). Using WS 2 (MW) is investigated under different temperatures (RT, 200, 400, 600, and 800 °C), and constant applied load (12N) and sliding speed (0.2m/s). The XRD, EPMA, FESEM, and EDS Mapping are conducted to understand the major mechanisms leading to improve the tribological properties of the M50 composites. Results suggested that MW provides the best tribological behaviors over the wide temperature range. The friction coefficients of MW are decreased by 13.51% as compared to that of M at 800 °C due to the formation of lubricating tribo-films on the worn surfaces. Research & Development in Material Science2/8 Res Dev Material SciAll previous articles confirmed that ZnO-WS 2 is a good lubricative candidate at elevated temperatures.

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“…3 The dynamic behavior of Cu-based friction material is more evident in a study conducted by Jang et al 4 Research has shown that Cu-based composite prepared by powdered metallurgy techniques enhance the friction and wear properties. 5 Practically, the friction torque of Cu-based composites during clutch engagements does not only depend on the material composites or methods used in its preparation, [6][7][8] but more importantly on temperature, sliding speed, and normal load. 9,10 Nonetheless, research has shown that the clutch frictional characteristics are not influenced to any large extent by the normal load.…”

Section: Introductionmentioning

confidence: 99%

The performance of Cu-based friction material in dry clutch engagement

Koranteng

Shaahu

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part J:

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An enhanced Cu-based friction material was prepared by the powder metallurgy techniques and proposed for use in the dry clutch system. The friction characteristics and wear rate of this friction material sliding against 65Mn steel are obtained using Universal Material Tester-5. The friction pairs were subjected to two operating variables, which are sliding speed and temperature. The effect of these variables during the engagement process of the friction pairs is investigated. Knowing the normal applied force and dimension of the clutch disc, the dynamic friction coefficient was translated to friction torque capacity with time. It was found that instability can be excited at low operational conditions when the resulting friction coefficient is high. At 25 ℃, the dynamic friction torque oscillates with time likewise at 400 ℃. Generally, a more stable friction torque is obtained when the sliding speed is varied compared to varying the temperatures. Moreover, the influence of the operating temperatures and sliding speeds on thermal buckling and thermoelastic instability of the friction disc is the second consideration in this work. The onset of thermoelastic instability occurs when the sliding speed exceeded 200 r/min and the results for the growth rate of hot spots were found to agree well with the critical speed of the system. Also, thermal buckling was highly dependent on the temperature difference between the inner and outer radius of the friction disc.

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Enhancing the tribological and mechanical properties of M50 steel using solid lubricants – A detailed review

Cited by 26 publications

References 75 publications

Structure, tribological properties, and the growth mechanism of in-situ generated TiC in titanium cermet

Structure, tribological properties, and the growth mechanism of in-situ generated TiC in titanium cermet

Experimental Study to Improve the Tribological Behaviors of M50 Steel via WS2 Solid Lubricant under High Temperatures

The performance of Cu-based friction material in dry clutch engagement

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