Author: Joseph R. Davis
Publisher: ASM International
ISBN: 1615032509
Category : Technology & Engineering
Languages : en
Pages : 371
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Book Description
Annotation A practical selection guide to help engineers and technicians choose the mot efficient surface hardening techniques that offer consistent and repeatable results. Emphasis is placed on characteristics such as processing temperature, case/coating thickness, bond strength, and hardness level obtained. The advantages and limitations of the various thermochemical, thermal and coating/surface modification technologies are compared
Author: Janez Grum
Publisher:
ISBN: 9789616238670
Category :
Languages : en
Pages : 233
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 52
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Book Description
Study of the laser hardening response of AISI 01, AISI 4340, carburized AISI 1020, and carburized AISI 9310 steels in various prior heat treatment conditions. The laser operating parameter combinations are established to produce maximum hardened case depths without surface melting.
Author: Jeyaprakash Natarajan
Publisher: Bentham Science Publishers
ISBN: 9815036319
Category : Technology & Engineering
Languages : en
Pages : 245
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Book Description
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.
Author: Jonathan R. Lawrence
Publisher: Elsevier
ISBN: 1782420797
Category : Technology & Engineering
Languages : en
Pages : 719
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Book Description
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
Author: V. F. Brekhovskikh
Publisher:
ISBN:
Category :
Languages : en
Pages : 19
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Book Description
The hardening of steel in the zone of action of focused radiation from a laser in the free-generation mode and with modulated-Q is considered. The maximum extent of the hardened areas is estimated, taking into account the characteristics of the laser radiation. The heating and cooling rates of the material were determined theoretically. The surface hardening of metal products is of much interest in machine design. A great many methods of surface hardening of metals are known: high-frequency current hardening, volume hardening of PP (low-annealing) steels, volume hardening of cemented and nitro-cemented items, etc. With the exception of the electron beam all other methods of surface hardening do not permit obtaining case-hardening of micro-regions to a depth of some tens or hundreds of microns. However, use of an electron beam is not always warranted due to the high cost of the equipment and the requirement for placing the item being treated in a vacuum. Experiments have shown that after laser treatment of the surfaces of U8, 45, KhVG and other steels, the micro-hardness in the treatment zone is increased from 300-400 up to 900-1000 kg/sq mm, and in certain cases to 2200 kg/sq mm. In this connection it is of interest to discuss some aspects of the possible use of laser radiation for the thermal treatment of steels and alloys. The paper analyzes some experimental data on the surface hardening of a number of steels and theoretical estimates are made of the dimensions of the regions of hardening obtained after irradiation by a laser. (Author).
Author: J. R. Davis
Publisher: ASM International
ISBN: 1615030727
Category : Corrosion and anti-corrosives
Languages : en
Pages : 286
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Book Description
Engineers are faced with a bewildering array of choices when selecting a surface treatment for a specific corrosion or wear application. This book provides practical information to help them select the best possible treatment. An entire chapter is devoted to process comparisons, and dozens of useful tables and figures compare surface treatment thickness and hardness ranges; abrasion and corrosion resistance; processing time, temperature, and pressure; costs; distortion tendencies; and other critical process factors and coating characteristics. The chapter Practical Guidelines for Surface Engin.
Author: Arthur C. Reardon
Publisher: ASM International
ISBN: 1615038450
Category : Metallurgy
Languages : en
Pages : 527
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Book Description
The completely revised Second Edition of Metallurgy for the Non-Metallurgist provides a solid understanding of the basic principles and current practices of metallurgy. This major new edition is for anyone who uses, makes, buys or tests metal products. For both beginners and others seeking a basic refresher, the new Second Edition of the popular Metallurgy for the Non-Metallurgist gives an all-new modern view on the basic principles and practices of metallurgy. This new edition is extensively updated with broader coverage of topics, new and improved illustrations, and more explanation of basic concepts. Why are cast irons so suitable for casting? Do some nonferrous alloys respond to heat treatment like steels? Why is corrosion so pernicious? These are questions that can be answered in this updated reference with many new illustrations, examples, and descriptions of basic metallurgy.
Author: Materials Information (Firm)
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: Peter Jurči
Publisher: MDPI
ISBN: 303650060X
Category : Science
Languages : en
Pages : 130
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Book Description
Steels and their heat treatment are still very important in modern industry because most industrial components are made from these materials. The proper choice of steel grades along with their suitable processing makes it possible to reduce the weight of the components, which is closely related to energy and fuel savings. This has decisive importance in branches such as the automotive, transport, consumer industries. A great number of novel heat- and surface-treatment techniques have been developed over the past three decades. These techniques involve, for example, vacuum treatment, sub-zero treatment, laser/electron beam surface hardening and alloying, low-pressure carburizing and nitriding, and physical vapour deposition. This Special Issue contains a collection of original research articles on not only advanced heat-treatment techniques—carburizing and sub-zero treatments—but also on the microstructure–property relationships in different ferrous alloys.
