1-20 of 558 Search Results for

surface hardening

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300335
EISBN: 978-1-62708-323-2
... Abstract This chapter covers coatings and treatments that are used to improve the friction and wear behaviors of materials. It describes modifications that work by hardening contacting surfaces, including heat treating, vacuum coating, thermal spray, and plating, and those that separate or...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300199
EISBN: 978-1-62708-323-2
... a way to improve hardenability. Hardenability is the ease with which a steel can harden and the hardened structure depth from the surface after the steel hardens. If a steel has high hardenability, it does not mean that it is the hardest. For example, 4340 steel can through-harden...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.9781627083232
EISBN: 978-1-62708-323-2
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300079
EISBN: 978-1-62708-323-2
...-hardened steels with hardness ranging from about 30 to 50 HRC. Fig. 4.20 Gouging abrasion This is a rather lengthy definition, but everybody knows polishing is rubbing a surface with substances that will make it shiny; shiny is the key word. However, from the theoretical aspect, polishing is...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300227
EISBN: 978-1-62708-323-2
... exhibits passivity, which means that the material will not corrode in an environment that is capable of corroding the material. With stainless steels, the chromium atoms, which are in solid solution in the body-centered cubic (bcc) iron lattice, combine on the surface with oxygen in the air to form a...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300179
EISBN: 978-1-62708-323-2
... like steels. The hardened microstructure in a carbon steel is martensite, a body-centered tetragonal (bct) atomic structure that appears needle-like under optical microscopy. Special heat treatment called austempering can make steels have a bainitic microstructure that is not as soft as ferrite and not...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300163
EISBN: 978-1-62708-323-2
... metallic metals. Pure copper is ductile and it is a good conductor of heat and electricity. It has a face-centered cubic crystal structure and unalloyed, it does not respond to hardening by heat treatment. Pure copper can only be made harder by cold working (like rolling and drawing). Copper alloys also...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300421
EISBN: 978-1-62708-323-2
... counterface, even if it is cast iron, does not have the cross-hatched lapped surface lay of a cylinder wall. The continuous motion of a pin-on-disk test rig does not simulate the reciprocating motion in an internal combustion engine. The friction effect of an oil must be ascertained under conditions that...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300271
EISBN: 978-1-62708-323-2
... often contain tungsten carbide spheres or other shapes ( Fig. 10.17 ). Fig. 10.17 Cermet hardfacing containing carbide spheres in a metal matrix. Original magnification: 100× The selling point of the TiC cermets is that, unlike cemented carbides, they can be machined and then hardened and...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300391
EISBN: 978-1-62708-323-2
... rolling surfaces.” Professor Dowson and many others credit the Egyptians for the first documentation of the use of liquid lubrication. Archeologists discovered a tomb drawing depicting the construction of the pyramids, and it very clearly shows a worker pouring a liquid from a jar in front of a sledge...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300121
EISBN: 978-1-62708-323-2
... solution was (several) new latches that prevented the relative motion. With the new latches, the hatch covers flexed with the ship. Similarly, it is well known that rapidly wearing punch press dies can be made more wear resistant by changing materials from, for example, oil hardening tool steel to...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300301
EISBN: 978-1-62708-323-2
... plastics and tribology is that any molded surface will have somewhat different properties than a machined surface; molding flow patterns can also produce anisotropy. Mold-release agents are usually silicones, which are lubricants; they will not be present below the surface. Any filled plastic (and most...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310331
EISBN: 978-1-62708-326-3
... surface hardening. This chapter introduces solid-state heat treatment of iron castings, covering general considerations for heat treatment and discussing the processes, advantages, and disadvantages of heat treatment of cast iron. annealing cast iron normalizing stress relieving surface...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220273
EISBN: 978-1-62708-259-4
... contacts the rail and generates a compressive state of stresses, making it difficult for surface fatigue cracks to grow (see Chapter 15, “Engineered Special Bar Quality Steel (Engineered Steels),” in this book). Flame or induction hardening are the standard ways of performing localized heating for...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410499
EISBN: 978-1-62708-265-5
... Mechanical components often require surface treatments to meet application demands. This chapter describes several surface hardening treatments for steel and their effect on microstructure, composition, and properties. It discusses flame hardening, induction heating, carburizing, nitriding...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050191
EISBN: 978-1-62708-311-9
... Abstract Induction heat treating is used in a wide range of applications. Typical uses, as described in this chapter, include the surface hardening of many types of shafts as well as gears and sprockets and the through-hardening of gripping teeth, cutting edges, and impact zones incorporated...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050245
EISBN: 978-1-62708-311-9
... Abstract This chapter discusses the methods and procedures used for inspecting induction-hardened parts. It provides information on hardness and case depth measurements, nondestructive testing and surface analysis, the effect of various hardening errors, and relevant test standards. case...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050173
EISBN: 978-1-62708-311-9
... Abstract The surface condition of metals can have a significant effect on the outcome of high-temperature processes and vice versa. This chapter discusses the general cleaning and surface treatment needs of work in-process both before and after induction hardening. It identifies contaminants...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050009
EISBN: 978-1-62708-311-9
... tend to be confined to the outer surface of the workpiece, a phenomenon known as the skin effect. The chapter includes several data plots showing how the depth of heating varies with frequency and how heating time, power density, and thermal conduction rate correspond with hardening depth...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050093
EISBN: 978-1-62708-311-9
...) Swaging with shallow penetration (a) Tube sinking of the inner surface Coining around holes Plastic bending of the stretched side Grinding under gentle conditions Hammer peening Quenching without phase transformation Direct-hardening steel (not through hardened) Case-hardening...