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Coatings and surface treatment for corrosion and wear resistance
the contamination of systems, particularly during erection and repair; those with the measurement and identification of contaminant particles in systems; and those dealing with the specification of filters and filter media. The main conclusion to be drawn from the first group is that the principle source of contamination is the failure to clean and flush prior to commissioning, coupled with the ingress of contaminant during top-up and maintenance activities; seals on the other hand appear to be effective in excluding the entry of unwanted material. The application of particle size counters and ferrography to hydraulic fluid is dealt with in some detail; this is a field mainly of interest to researchers and development engineers rather than designers and users. The major point of interest that emerges from a reading of the papers is the still unresolved problem of defining filter characteristics in some meaningful way that will give relevant comparisons between different filters and Published by Mechanical Engineering Publications Ltd, PO Box 24, Northgate A venue, Bury St Edmunds, Suffolk [P 32 6BW, UK. The price is £23.00 (UK) or £30.00 (elsewhere).
provide clear guidance for selection, taking into account how the filter performs under service conditions where it may be subject to vibration, pressure ripples and other disturbing factors. The sense of false security that can be given by filters with by-pass relief valves is especially noted. The problem of adequate selection is particularly critical for the finer filters used in hydraulic systems, but it also applies to the 10-15/~m nominal filters that are increasingly coming into use in industrial lubrication systems. Aside from the main theme of filtration is an interesting paper on particulate removal by electrostatic cleaning. While these papers must be mainly of interest to those concerned with hydraulic systems, they can be recommended to the designers and users of lubrication systems on critical items of plant for the useful tips they give on achieving system cleanliness and the insight given into current thinking on lubricating oil filtration. The volume gives a useful state-of-the-art review.
D. Summers-Smith Cleveland, UK
Coatings and Surface Treatment for Corrosion and Wear Resistance K N Strafford, P K Datta and C G Coogan (Editors) The book comprises 25 papers which were delivered at an Institution of Corrosion Science and Technology Symposium held at Newcastle Polytechnic in the Spring of 1983. At first glance the book is a little "off-putting", probably because of the wide diversity of papers it contains. However, credit is due to the Symposium organizers and editors for tackling this very broad subject of coatings in such an able way.
and polymeric paint coatings.
way, giving plenty of examples. Part 2, on high temperature coatings opens with a review entitled 'The production and performance of high temperature coatings'. In about thirty pages the reader is introduced to the subject, made thoroughly conversant with the problems, methods of treatment (including pvd electron beam techniques) and test evaluation. This most stimulating paper is followed by half a dozen shorter, but equally interesting ones. The first two cover coatings for marine turbines and for the stacks and ducting of gas turbine power stations; the remaining four record experimental work and tend to be more academic. The last of these papers on oxidation inhibition by ion implantation, clearly points in the direction of future research in this very important area. The final part of the book, dealing with polymeric and paint coatings, contains six forward-looking papers. The first, on the future of organic coating systems, is presented in an enthusiastic and exciting way. With one eye on the underlying research and the other on the economics, the writer clearly presents the 'State of the Art'. Other papers in this section are on the blistering of paint in sea water, methods of assessing coatings or resins and the use of polyvinylidene fluoride (pvdf) powder coatings. This 'very readable' book, although packed with basic and practical information does not neglect the research element and gives the reader a view of the coatings of the future. It should be read, not only by those concerned with corrosion and wear, but also by design engineers, materials scientists and a wide spectrum of students in engineering and applied science.
The book is presented in three parts covering metallic and inorganic coatings, high temperature coatings,
Part 1, taking up half the volume, contains some excellent papers for the engineer, corrosion scientist and tribologist. The main structure of this part carries four general papers on wear resistance, protection, developments in protective coatings and spray fused coatings. These are complemented by a further eight papers which are specific to particular processes or treatments, from Sheradising through hot dipping, electrolytic and electroless processes to plasma processes.
At £37.50 it is quite costly for the average individual to purchase, but in terms of "manday rates" at most establishments it is good value. Clearly it is a book for the technical library and a sound investment for employers in the field of coatings utilization.
Published by Ellis Horwood Ltd, Cooper Street, Chichester, Sussex, UK and distributed by John Wiley & Sons Ltd, Bafflns Lane, Chichester, West Sussex PO19 1 UD, UK. ISBN 0 853127522
In every case the writers have successfully dealt with the underlying principles of their subjects yet in general presented them in a practical
National Centre of Tribology UKAEA, Risley, Warrington WA3 6A 7", UK
56
M. Farrow
February 1985 Vol 18 No 1
provide clear guidance for selection, taking into account how the filter performs under service conditions where it may be subject to vibration, pressure ripples and other disturbing factors. The sense of false security that can be given by filters with by-pass relief valves is especially noted. The problem of adequate selection is particularly critical for the finer filters used in hydraulic systems, but it also applies to the 10-15/~m nominal filters that are increasingly coming into use in industrial lubrication systems. Aside from the main theme of filtration is an interesting paper on particulate removal by electrostatic cleaning. While these papers must be mainly of interest to those concerned with hydraulic systems, they can be recommended to the designers and users of lubrication systems on critical items of plant for the useful tips they give on achieving system cleanliness and the insight given into current thinking on lubricating oil filtration. The volume gives a useful state-of-the-art review.
D. Summers-Smith Cleveland, UK
Coatings and Surface Treatment for Corrosion and Wear Resistance K N Strafford, P K Datta and C G Coogan (Editors) The book comprises 25 papers which were delivered at an Institution of Corrosion Science and Technology Symposium held at Newcastle Polytechnic in the Spring of 1983. At first glance the book is a little "off-putting", probably because of the wide diversity of papers it contains. However, credit is due to the Symposium organizers and editors for tackling this very broad subject of coatings in such an able way.
and polymeric paint coatings.
way, giving plenty of examples. Part 2, on high temperature coatings opens with a review entitled 'The production and performance of high temperature coatings'. In about thirty pages the reader is introduced to the subject, made thoroughly conversant with the problems, methods of treatment (including pvd electron beam techniques) and test evaluation. This most stimulating paper is followed by half a dozen shorter, but equally interesting ones. The first two cover coatings for marine turbines and for the stacks and ducting of gas turbine power stations; the remaining four record experimental work and tend to be more academic. The last of these papers on oxidation inhibition by ion implantation, clearly points in the direction of future research in this very important area. The final part of the book, dealing with polymeric and paint coatings, contains six forward-looking papers. The first, on the future of organic coating systems, is presented in an enthusiastic and exciting way. With one eye on the underlying research and the other on the economics, the writer clearly presents the 'State of the Art'. Other papers in this section are on the blistering of paint in sea water, methods of assessing coatings or resins and the use of polyvinylidene fluoride (pvdf) powder coatings. This 'very readable' book, although packed with basic and practical information does not neglect the research element and gives the reader a view of the coatings of the future. It should be read, not only by those concerned with corrosion and wear, but also by design engineers, materials scientists and a wide spectrum of students in engineering and applied science.
The book is presented in three parts covering metallic and inorganic coatings, high temperature coatings,
Part 1, taking up half the volume, contains some excellent papers for the engineer, corrosion scientist and tribologist. The main structure of this part carries four general papers on wear resistance, protection, developments in protective coatings and spray fused coatings. These are complemented by a further eight papers which are specific to particular processes or treatments, from Sheradising through hot dipping, electrolytic and electroless processes to plasma processes.
At £37.50 it is quite costly for the average individual to purchase, but in terms of "manday rates" at most establishments it is good value. Clearly it is a book for the technical library and a sound investment for employers in the field of coatings utilization.
Published by Ellis Horwood Ltd, Cooper Street, Chichester, Sussex, UK and distributed by John Wiley & Sons Ltd, Bafflns Lane, Chichester, West Sussex PO19 1 UD, UK. ISBN 0 853127522
In every case the writers have successfully dealt with the underlying principles of their subjects yet in general presented them in a practical
National Centre of Tribology UKAEA, Risley, Warrington WA3 6A 7", UK
56
M. Farrow
February 1985 Vol 18 No 1