Solid Lubrication at High-Temperatures—A Review

Understanding the complex nature of wear behavior of materials at high-temperature is of fundamental importance for several engineering applications, including metal processing (cutting, forming, forging), internal combustion engines, etc. At high temperatures (up to 1000 °C), the material removal i...

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Main Authors: Rahul Kumar, Irina Hussainova, Ramin Rahmani, Maksim Antonov
Format: Article
Language:English
Published: MDPI AG 2022-02-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/15/5/1695
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author Rahul Kumar
Irina Hussainova
Ramin Rahmani
Maksim Antonov
author_facet Rahul Kumar
Irina Hussainova
Ramin Rahmani
Maksim Antonov
author_sort Rahul Kumar
collection DOAJ
description Understanding the complex nature of wear behavior of materials at high-temperature is of fundamental importance for several engineering applications, including metal processing (cutting, forming, forging), internal combustion engines, etc. At high temperatures (up to 1000 °C), the material removal is majorly governed by the changes in surface reactivity and wear mechanisms. The use of lubricants to minimize friction, wear and flash temperature to prevent seizing is a common approach in engine tribology. However, the degradation of conventional liquid-based lubricants at temperatures beyond 300 °C, in addition to its harmful effects on human and environmental health, is deeply concerning. Solid lubricants are a group of compounds exploiting the benefit of wear diminishing mechanisms over a wide range of operating temperatures. The materials incorporated with solid lubricants are herein called ‘self-lubricating’ materials. Moreover, the possibility to omit the use of conventional liquid-based lubricants is perceived. The objective of the present paper is to review the current state-of-the-art in solid-lubricating materials operating under dry wear conditions. By opening with a brief summary of the understanding of solid lubrication at a high temperature, the article initially describes the recent developments in the field. The mechanisms of formation and the nature of tribo-films (or layers) during high-temperature wear are discussed in detail. The trends and ways of further development of the solid-lubricating materials and their future evolutions are identified.
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spelling doaj.art-cb3f43aae3814606a770d142a593d0472023-11-23T23:17:26ZengMDPI AGMaterials1996-19442022-02-01155169510.3390/ma15051695Solid Lubrication at High-Temperatures—A ReviewRahul Kumar0Irina Hussainova1Ramin Rahmani2Maksim Antonov3Department of Mechanical & Industrial Engineering, Tallinn University of Technology, Ehitajate tee 5, 19086 Tallinn, EstoniaDepartment of Mechanical & Industrial Engineering, Tallinn University of Technology, Ehitajate tee 5, 19086 Tallinn, EstoniaDepartment of Mechanical & Industrial Engineering, Tallinn University of Technology, Ehitajate tee 5, 19086 Tallinn, EstoniaDepartment of Mechanical & Industrial Engineering, Tallinn University of Technology, Ehitajate tee 5, 19086 Tallinn, EstoniaUnderstanding the complex nature of wear behavior of materials at high-temperature is of fundamental importance for several engineering applications, including metal processing (cutting, forming, forging), internal combustion engines, etc. At high temperatures (up to 1000 °C), the material removal is majorly governed by the changes in surface reactivity and wear mechanisms. The use of lubricants to minimize friction, wear and flash temperature to prevent seizing is a common approach in engine tribology. However, the degradation of conventional liquid-based lubricants at temperatures beyond 300 °C, in addition to its harmful effects on human and environmental health, is deeply concerning. Solid lubricants are a group of compounds exploiting the benefit of wear diminishing mechanisms over a wide range of operating temperatures. The materials incorporated with solid lubricants are herein called ‘self-lubricating’ materials. Moreover, the possibility to omit the use of conventional liquid-based lubricants is perceived. The objective of the present paper is to review the current state-of-the-art in solid-lubricating materials operating under dry wear conditions. By opening with a brief summary of the understanding of solid lubrication at a high temperature, the article initially describes the recent developments in the field. The mechanisms of formation and the nature of tribo-films (or layers) during high-temperature wear are discussed in detail. The trends and ways of further development of the solid-lubricating materials and their future evolutions are identified.https://www.mdpi.com/1996-1944/15/5/1695self-lubricationsolid lubricantsweartribologyhigh temperaturefriction
spellingShingle Rahul Kumar
Irina Hussainova
Ramin Rahmani
Maksim Antonov
Solid Lubrication at High-Temperatures—A Review
Materials
self-lubrication
solid lubricants
wear
tribology
high temperature
friction
title Solid Lubrication at High-Temperatures—A Review
title_full Solid Lubrication at High-Temperatures—A Review
title_fullStr Solid Lubrication at High-Temperatures—A Review
title_full_unstemmed Solid Lubrication at High-Temperatures—A Review
title_short Solid Lubrication at High-Temperatures—A Review
title_sort solid lubrication at high temperatures a review
topic self-lubrication
solid lubricants
wear
tribology
high temperature
friction
url https://www.mdpi.com/1996-1944/15/5/1695
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AT irinahussainova solidlubricationathightemperaturesareview
AT raminrahmani solidlubricationathightemperaturesareview
AT maksimantonov solidlubricationathightemperaturesareview