Download or read book Excimer Laser Surface Processing for Tribological Applications in Metals and Ceramics written by and published by . This book was released on 1991 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of pulsed excimer lasers, operating at UV wavelengths, for surface modification has many potential applications in the tribology of metals and ceramics. Alterations of surface chemistry and microstructure are possible on standard engineering materials. We have demonstrated improved tribological performance in stainless steel by the formation of a unique oxide and by Ti mixing and in SiC by Ti mixing. Specifically, we have observed reduced friction in dry sliding conditions and a change in the wear process resulting in greatly reduced surface damage. We have also demonstrated the effectiveness of excimer laser mixing in other systems with potential tribological applications. 22 refs., 7 figs.
Download or read book Excimer Laser Surface Modification written by and published by . This book was released on 1992 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: Surface modification can improve materials for structural, tribological, and corrosion applications. Excimer laser light has been shown to provide a rapid means of modifying surfaces through heat treating, surface zone refining, and mixing. Laser pulses at modest power levels can easily melt the surfaces of many materials. Mixing within the molten layer or with the gas ambient may occur, if thermodynamically allowed, followed by rapid solidification. The high temperatures allow the system to overcome kinetic barriers found in some ion mixing experiments. Alternatively, surface zone refinement may result from repeated melting-solidification cycles. Ultraviolet laser light couples energy efficiently to the surface of metallic and ceramic materials. The nature of the modification that follows depends on the properties of the surface and substrate materials. Alloying from both gas and predeposited layer sources has been observed in metals, semiconductors, and ceramics as has surface enrichment of Cr by zone refinement of stainless steel. Rapid solidification after melting often results in the formation of nonequilibrium phases, including amorphous materials. Improved surface properties, including tribology and corrosion resistance, are observed in these materials.
Download or read book Laser Surface Treatments for Tribological Applications written by Jeyaprakash Natarajan and published by Bentham Science Publishers. This book was released on 2021-11-22 with total page 245 pages. Available in PDF, EPUB and Kindle. Book excerpt: This reference presents comprehensive information about laser surface treatments for tribological applications. Chapters of the book highlight the importance of laser technology in modifying materials to optimize the effects of friction and lubrication, by explaining a range of surface modification methods used in industries. These methods include hardening, melting, alloying, cladding and texturing. The knowledge in the book is intended to give an in-depth understanding about the role of laser technology in tribology and the manufacture of industrial materials and surfaces for special applications. Key Features: - 10 chapters on topics relevant to tribology and industrial applications of laser material processing - Comprehensively covers laser surface modification of metals and alloys - Explains a wide range of surface modification methods (hardening, melting, alloying, cladding and texturing) - Covers material and tribological characterization of surfaces - Presents information in a simple structured layout for easy reading, with introductory notes for learners - Provides references for further reading This book is an ideal reference for students and learners in courses related to engineering, manufacturing and materials science. Researchers, industrial professionals and general readers interested in laser assisted machining processes and surface modification techniques will also find the book to be an informative reference on the subject.
Download or read book Laser Induced Periodic Surface Nano and Microstructures for Tribological Applications written by Jörn Bonse and published by MDPI. This book was released on 2020-11-25 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the printed edition of the Special Issue published in Materials. The book provides an overview of current international research activities in the field of friction and wear management through the laser processing of periodic surface micro- and nanostructures for technical and medical applications. Contributions of renowned scientists from academia and industry provide a bridge between the fields of tribology and laser material processing in order to foster current knowledge and present new ideas for future applications and new technologies.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Laser Surface Engineering written by Jonathan R. Lawrence and published by Elsevier. This book was released on 2014-10-02 with total page 719 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lasers can alter the surface composition and properties of materials in a highly controllable way, which makes them efficient and cost-effective tools for surface engineering. This book provides an overview of the different techniques, the laser-material interactions and the advantages and disadvantages for different applications. Part one looks at laser heat treatment, part two covers laser additive manufacturing such as laser-enhanced electroplating, and part three discusses laser micromachining, structuring and surface modification. Chemical and biological applications of laser surface engineering are explored in part four, including ways to improve the surface corrosion properties of metals. - Provides an overview of thermal surface treatments using lasers, including the treatment of steels, light metal alloys, polycrystalline silicon and technical ceramics - Addresses the development of new metallic materials, innovations in laser cladding and direct metal deposition, and the fabrication of tuneable micro- and nano-scale surface structures - Chapters also cover laser structuring, surface modification, and the chemical and biological applications of laser surface engineering
Download or read book Laser Surface Treatments for Tribological Applications written by Jeyaprakash Natarajan and published by Bentham Science Publishers. This book was released on 2021-11-22 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: This reference presents comprehensive information about laser surface treatments for tribological applications. Chapters of the book highlight the importance of laser technology in modifying materials to optimize the effects of friction and lubrication, by explaining a range of surface modification methods used in industries. These methods include hardening, melting, alloying, cladding and texturing. The knowledge in the book is intended to give an in-depth understanding about the role of laser technology in tribology and the manufacture of industrial materials and surfaces for special applications. Key Features: - 10 chapters on topics relevant to tribology and industrial applications of laser material processing - Comprehensively covers laser surface modification of metals and alloys - Explains a wide range of surface modification methods (hardening, melting, alloying, cladding and texturing) - Covers material and tribological characterization of surfaces - Presents information in a simple structured layout for easy reading, with introductory notes for learners - Provides references for further reading This book is an ideal reference for students and learners in courses related to engineering, manufacturing and materials science. Researchers, industrial professionals and general readers interested in laser assisted machining processes and surface modification techniques will also find the book to be an informative reference on the subject. Audience: Students, researchers, professionals and general readers interested in industrial processes for laser modification of surface and tribology
Download or read book Laser Applications in Surface Modification written by Jianhua Yao and published by Springer Nature. This book was released on 2022-02-27 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces the applications of laser in surface modification, such as laser cladding of Stellite alloys and metal-ceramic composites. Besides, nanomaterials including carbon nanotubes and Al2O3 nanoparticles are brought into the laser processing, to form high-temperature resistance, chemical stability, and wear- and oxidation-resistant composite coatings. The readers will get more knowledge about the basic principle and application of laser cladding and laser surface hardening technologies, and gain a deep insight into the process and characteristics of the nanomaterial-assisted laser surface enhancement. It provides references for the researchers, engineers, and students in the fields of mechanical engineering, laser processing, and material engineering.
Download or read book Excimer Laser Processing of Tool Steel written by and published by . This book was released on 1995 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excimer lasers were used to modify the surface of AISI type A-7 tool steel, a high C, high V, high Cr material used in many cutting applications. Multiple pulses of laser radiation at 248 nm were used to alter the composition of the surface alloy. Hardness and modulus were not significantly affected by the treatment, but friction in dry sliding against an alumina pin was reduced. The reduction was small but persistent for multiply melted and resolidified surfaces. These surfaces showed a marked increase in the surface Cr concentration. Greater reductions in friction were obtained from a Ti rich surface layer formed by laser mixing an evaporated Ti layer into the material. The friction coefficient of the Ti alloyed surface deteriorated after approximately 1000 cycles, indicating wear=through of the modified surface. The observed properties will be discussed in terms of the excimer laser modification process and the microstructure and composition of the resulting surfaces.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1990 with total page 946 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Advanced Materials written by and published by . This book was released on 1993 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Laser Processing of Engineering Materials written by John Ion and published by Elsevier. This book was released on 2005-03-22 with total page 589 pages. Available in PDF, EPUB and Kindle. Book excerpt: The complete guide to understanding and using lasers in material processing!Lasers are now an integral part of modern society, providing extraordinary opportunities for innovation in an ever-widening range of material processing and manufacturing applications. The study of laser material processing is a core element of many materials and manufacturing courses at undergraduate and postgraduate level. As a consequence, there is now a vast amount of research on the theory and application of lasers to be absorbed by students, industrial researchers, practising engineers and production managers. Written by an acknowledged expert in the field with over twenty years' experience in laser processing, John Ion distils cutting-edge information and research into a single key text. Essential for anyone studying or working with lasers, Laser Processing of Engineering Materials provides a clear explanation of the underlying principles, including physics, chemistry and materials science, along with a framework of available laser processes and their distinguishing features and variables. This book delivers the knowledge needed to understand and apply lasers to the processing of engineering materials, and is highly recommended as a valuable guide to this revolutionary manufacturing technology. The first single volume text that treats this core engineering subject in a systematic manner Covers the principles, practice and application of lasers in all contemporary industrial processes; packed with examples, materials data and analysis, and modelling techniques
Download or read book Handbook of Laser Based Sustainable Surface Modification and Manufacturing Techniques written by Hitesh Vasudev and published by CRC Press. This book was released on 2023-07-05 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook provides an insight into the advancements in surface engineering methods, addressing the microstructural features, properties, mechanisms of surface degradation failures, and tribological performance of the components. Emphasis is placed on the use of laser cladding methods because they make it simple to deposit new classes of materials such nano-composites, nanotubes, and smart materials. Handbook of Laser-Based Sustainable Surface Modification and Manufacturing Techniques discusses the main mechanism behind the surface degradation of structural components in strenuous environments. It highlights the capacity of laser cladding to operate on a wide range of substrate materials and shapes as well as presents how laser cladding can offer new possibilities in the reconditioning of components and how, in many cases, these approaches are the only solution for economic efficiency. The handbook illustrates how the type of laser, laser optics, and the parameters of the process can be efficiently selected, and thus the number of applications of laser cladding and its applications can be increased. The standard methods of testing used for various types of biomedical devices and tools, as well as the advantages of combining laser cladding with simultaneous induction heating, are described as well within this handbook. Features: Discusses the role of claddings fabricated with laser technique to withstand wear and corrosion Highlights the role of laser in the manufacturing of alloys and recent advancements in laser based additive manufacturing processes Presents the possibilities, applications and challenges in laser surfacing Illustrates the post-treatments of powders and coatings and case studies related to laser surface technology Offers the standard methods of testing applied to various types of biomedical devices and tools Goes over the advantages of combining laser cladding with simultaneous induction heating The technical outcomes of these surface engineering methods are helpful for academics, students, and professionals who are working in this field, as this enlightens their understanding of the performance of these latest processes. The audience is broad and multidisciplinary.
Download or read book Laser Material Processing written by William M. Steen and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: Laser Material Processing is an introductory book on the application of lasers to cutting, welding, and the many new processes in surface treatment. Background information on surface treatment processes is provided to give the reader a real understanding of the process mechanisms, method of application, and industrial potential. Additionally, there are sections on basic optics, theoretical modelling, automation and safety. The material presented is based upon a course Professor Steen presents to groups from British Aerospace, and to his own MSc students in laser technology. This unique combination of topics has excellent potential as university course material for undergraduate, graduate, and postgraduate studies in optoelectronics, laser processing, and advanced manufacturing. Engineers and technicians in these areas will also find the book a welcome source of information on the rapidly expanding use of industrial lasers.
Download or read book Laser Surface Modification and Adhesion written by K. L. Mittal and published by John Wiley & Sons. This book was released on 2014-09-18 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book provides a unique overview on laser techniques and applications for the purpose of improving adhesion by altering surface chemistry and topography/morphology of the substrate. It details laser surface modification techniques for a wide range of industrially relevant materials (plastics, metals, ceramics, composites) with the aim to improve and enhance their adhesion to other materials. The joining of different materials is of critical importance in the fabrication of many and varied products.
Download or read book Advanced Laser Process for Surface Enhancement written by Jianhua Yao and published by Springer Nature. This book was released on 2020-11-30 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two typical hybrid laser surface modification processes, i.e. electro/magnetic field aided laser process and supersonic laser deposition technology, are introduced in the book, to solve the common problems in quality control and low efficiency of the laser-only surface modification technology, high contamination and high consumption of the traditional surface modification technology. This book focuses on the principle, characteristics, special equipment, process and industrial applications of the hybrid laser surface modification processes based on the recent research results of the author’s group, and provides theoretical guidance and engineering reference for the researchers and engineers engaging in the field of surface engineering and manufacturing.
Download or read book Proceedings of Malaysian International Tribology Conference 2015 written by Mariyam Jameelah Binti Ghazali and published by Malaysian Tribology Society. This book was released on 2015-11-16 with total page 347 pages. Available in PDF, EPUB and Kindle. Book excerpt: This ebook is a compilation of papers presented at the Malaysian International Tribology Conference 2015 (MITC2015) - Penang, Malaysia on 16 ~ 17 November 2015.
