1st Edition

Extreme Tribology Fundamentals and Challenges

By Ahmed Abdelbary Copyright 2019
    332 Pages 10 Color & 244 B/W Illustrations
    by CRC Press

    330 Pages 10 Color & 244 B/W Illustrations
    by CRC Press

    330 Pages 10 Color & 244 B/W Illustrations
    by CRC Press

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    Tribology is an unfamiliar term for many, but is experienced by all. It is the science of friction, wear and lubrication of contacting surfaces in relative motion. The aim of this book is to introduce the fundamentals of tribology as well as its challenges in extreme operating conditions.

    The book comprises a historical background and an introduction to familiarize both undergraduate and postgraduate readers with such an important topic. It addresses a comprehensive coverage of classical tribology of solid contacts, friction mechanics, wear mechanisms and lubrication technologies. The tribology of polymer composites, MEMS and NEMS are explored. In addition, tribology of automotive components is presented, as are tribological applications in many practical situations.Various test methods used in evaluating wear are reviewed. Diverse techniques applied in predicting wear behavior by mathematical models, FE modeling and ANN approach are discussed.

    The book reviews key features of extraordinary conditions associated with, but not limited to, harsh environments, severe sliding and poor lubrication challenges. A basic understanding of failure modes in tribological systems is covered. The state-of-the-art research on tribology under these extreme conditions is extensively discussed, which will be of interest to researchers. The book highlights solutions for extreme tribology problems and provides an overview of various factors affecting tribosystems in harsh conditions.

    Introduction to Tribology
    History of tribology
    Development and future challenges in tribology
    Knowledge of Tribology: Education, Publications, and Researches

    Tribo-material Properties
    Volume properties
    Surface properties
    Lubricant properties

    Contact of solid surfaces
    Theories of friction
    Laws of sliding friction
    Laws of rolling friction
    Factors affecting friction and wear
    Friction measurements
    Frictional heating
    Contact surface temperature
    Measurements of contact temperature

    Wear mechanisms
    Wear-regime map
    Generation of wear debris
    Measurement of wear (Tribo-measurements)

    Lubricants and lubrication
    Types of lubricants
    Fluid film lubrication
    Gas-lubricated bearings
    Solid film lubrication
    Grease lubrication

    Tribology of Polymer and their Composites
    Wear of polymers
    Friction of polymers
    Severity parameter for friction and wear of polymers
    Sliding mechanics of polymers
    Wear and friction of polymer composites

    Tribology of Automotive Components
    Piston ring
    Valvetrain mechanism
    Crankshaft bearing
    Clutches and brakes
    Automotive lubricants

    Friction and Wear in Extreme Conditions
    Challenges in tribology
    Friction and wear under extreme loads
    Micro/Nano-scale friction and wear
    Friction and wear at high temperatures
    Friction and wear at low and cryogenic temperatures
    Friction and wear at high speeds
    Friction and wear under vacuum conditions
    Wear in mining and mineral processing
    Abrasion of concrete paver blocks

    Lubrication and Coating Challenges in Extreme Conditions
    Lubrication challenges
    Coating challenges
    Surface treatment challenges

    Simulation and Modeling of Tribo-Systems
    Equations and models
    Finite element analysis (FEA)
    Dimensional analysis
    Artificial Neural Networks (ANNs)

    Failures in Tribo-Systems
    Bearing failure
    Gear failure
    Cam/follower failure
    Wheel/rail failure
    Failure of artificial joints





    Ahmed Abdelbary is a Chief Engineer and Tribology Consultant for the Egyptian Government. He earned a B.Sc. (Eng.) from the Military Technical College, Egypt, in 1994, and got his M.Sc. and Ph.D. in 2003 and 2011 respectively, from Alexandria University, Egypt. He is a full member of the Egyptian Society of Tribology, EGTRIB. His publications include a book titled Wear of Polymers and Composites (2014) and numerous research papers in reputed engineering journals.