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Friction and wear transitions of materials
Wear,
142 (1991)
387
387-388
Book Review
Friction
and Wear Transitions of Materials
By Peter J. Blau, published
by Noyes,
Park Ridge, NJ, 476
pp.
This is large but useful book on several aspects of tribology with a major emphasis on the transition phenomena in wear. The hrst three chapters deal with tribology and its nomenclature, friction and types of wear. In the chapters on friction and wear the author identifies the major features of the phenomena involved. He does not, however, attempt to provide a review of detailed theories of friction and wear but he does provide adequate references for classical treatises on such subjects. My only comment on this section is the absence of any discussion on the role of fatigue in sliding wear in the formation of wear particles, particularly where adhesion is a significant effect. The author then discusses the need to identify phenomena such as break in, run in and wear in as separate but related phenomena in the approach to steady state behaviour. Transition phenomena in friction and wear occupy about half this book and starting with phenomena such as published wear maps the author graduates towards a semi-empirical model for such phenomena. On the whole the book deals with tribological contacts where fluid film lubrication is not applicable. It would create a wrong impression of this book to list a series of errors but I must correct a statement relating to the author’s generous comments on my own work on the tribology of surface coatings. I do not claim “thin soft coatings have better wear resistance than thin hard coatings” (p. 260). I point out that the wear resistance of thin soft coatings increases as wear proceeds whilst the opposite is true for thin hard coatings. My overwhelming impression of this book is the author’s healthy sceptism of much published work. Thus, whilst demonstrating the value of wear maps to indicate transition phenomena, he also quotes work which shows that the wear transition can be dependent on the test equipment, e.g. the stiffness of the wear testing machine. Perhaps one might quote the author’s own limerick on p. 186 An entrepreneur was once gloating, About the great wear of his coating; He’d chosen that test Which brought out the best Advantages he was promoting. This is a useful book for those involved in research ahhough it will prove most valuable to those in industry facing a specific tribological problem
Elsevier
Sequoia/Printed
in The Netherlands
which is not amenable to a lubrication solution. My only surprise in such a large book was that out of some 400 references, rather fewer than ten referred to publications of the Institute of Mechanical Engineers. J. HaUing 58 Irby Road Heswall Win-al M 6XF U.K.
142 (1991)
387
387-388
Book Review
Friction
and Wear Transitions of Materials
By Peter J. Blau, published
by Noyes,
Park Ridge, NJ, 476
pp.
This is large but useful book on several aspects of tribology with a major emphasis on the transition phenomena in wear. The hrst three chapters deal with tribology and its nomenclature, friction and types of wear. In the chapters on friction and wear the author identifies the major features of the phenomena involved. He does not, however, attempt to provide a review of detailed theories of friction and wear but he does provide adequate references for classical treatises on such subjects. My only comment on this section is the absence of any discussion on the role of fatigue in sliding wear in the formation of wear particles, particularly where adhesion is a significant effect. The author then discusses the need to identify phenomena such as break in, run in and wear in as separate but related phenomena in the approach to steady state behaviour. Transition phenomena in friction and wear occupy about half this book and starting with phenomena such as published wear maps the author graduates towards a semi-empirical model for such phenomena. On the whole the book deals with tribological contacts where fluid film lubrication is not applicable. It would create a wrong impression of this book to list a series of errors but I must correct a statement relating to the author’s generous comments on my own work on the tribology of surface coatings. I do not claim “thin soft coatings have better wear resistance than thin hard coatings” (p. 260). I point out that the wear resistance of thin soft coatings increases as wear proceeds whilst the opposite is true for thin hard coatings. My overwhelming impression of this book is the author’s healthy sceptism of much published work. Thus, whilst demonstrating the value of wear maps to indicate transition phenomena, he also quotes work which shows that the wear transition can be dependent on the test equipment, e.g. the stiffness of the wear testing machine. Perhaps one might quote the author’s own limerick on p. 186 An entrepreneur was once gloating, About the great wear of his coating; He’d chosen that test Which brought out the best Advantages he was promoting. This is a useful book for those involved in research ahhough it will prove most valuable to those in industry facing a specific tribological problem
Elsevier
Sequoia/Printed
in The Netherlands
which is not amenable to a lubrication solution. My only surprise in such a large book was that out of some 400 references, rather fewer than ten referred to publications of the Institute of Mechanical Engineers. J. HaUing 58 Irby Road Heswall Win-al M 6XF U.K.