1-20 of 743 Search Results for

hardness

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: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310079
EISBN: 978-1-62708-326-3
... discussed. In addition, the article provides information on the hardenability limits of H-steels after a note on hardenability correlation curves and Jominy equivalence charts. hardenability hardenability curves hardness Jominy end-quench test Jominy equivalence chart steel...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310203
EISBN: 978-1-62708-326-3
.... Tempering of as-quenched martensite The tempering process involves heating steel to any temperature below the Ac 1 temperature. The objective of tempering is to reduce hardness to a desired level and then stop the carbide decomposition by cooling. Direct hardening of steel involves the two-step...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310163
EISBN: 978-1-62708-326-3
... Handbook , ASM International , 2014 , p 130 – 159 10.31399/asm.hb.v04c.a0005873 13. Grange R.A. , Hribal C.R. , and Porter L.F. , Hardness of Tempered Martensite in Carbon and Low-Alloy Steels , Metall. Trans. A , Vol 8 , 1977 , p 1775 – 1785 10.1007/BF02646882 14...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310285
EISBN: 978-1-62708-326-3
... appreciable hardness and ability to cut. Tools such as twist drills and countersinks, milling cutters, turning tools, boring tools, broaches, and saw blades are just a few examples of such applications. The tool steels used for cutting tool applications are usually heat treated to very high hardness...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.9781627083263
EISBN: 978-1-62708-326-3
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310331
EISBN: 978-1-62708-326-3
... hardness and strength Through hardening: heating, quenching, and tempering to provide the highest possible hardness and strength Surface hardening: flame, induction, or laser heating the surface of a casting to increase its wear resistance Most iron-casting producers would like to produce...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310233
EISBN: 978-1-62708-326-3
...-temperature and large-section toughness. They are called ferritic alloys because they remain ferritic at all temperatures and thus cannot be hardened by heating and quenching. They are heat treated for annealing, to reduce excess hardness from cold working. In some cases they can also be heat treated for...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310095
EISBN: 978-1-62708-326-3
... most frequently used steel. Carbon is the main factor affecting the hardness and mechanical properties of steel, and carbon content increases the hardness (strength) for all types of microstructures, with martensitic microstructures having the greatest hardness. ( Fig. 1 ). Hardness increases...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310127
EISBN: 978-1-62708-326-3
... effect of time and temperature on hardness of a medium-carbon low-alloy steel (Nitralloy 135M). Because no austenite is formed, the manner of cooling is important only in its effect on the internal stress condition of the piece—rapid cooling produces relatively high stress, and slow cooling produces...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310351
EISBN: 978-1-62708-326-3
... primarily used for the purpose of increasing hardness, yield strength, and/or tensile strength. Eutectoid transformations, which form the basis of a number of steel heat treatment practices, are much less common in the heat treatment of nonferrous alloys. Eutectoid transformations do occur in various...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310029
EISBN: 978-1-62708-326-3
..., and fracture of steels. Cementite is very hard, ranging in hardness from 800 to 1400 HV, depending on the substitution of elements for iron. Heat treatment also can alter the amount, shape, and distribution of the hard cementite particles in the microstructure of steel. For example, the hard...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310001
EISBN: 978-1-62708-326-3
... bonding of atoms in solids restricts their mobility. But atoms can move around in any substance—even solids. Convincing the untrained person that atoms move about in solid metals and alloys may be a hard sell, but it is absolutely true. Atoms in a solid are constantly vibrating due to their thermal motion...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310055
EISBN: 978-1-62708-326-3
... related to the cooling rates on Jominy end-quench test specimens ( Fig. 8 ). Positions along the Jominy bar are equivalent to cooling rates and can be expressed as equivalent bar diameters (see Chapter 4, “Hardness and Hardenability of Steels,” in this book). The difficulty with CCT diagrams is the...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290193
EISBN: 978-1-62708-319-5
... procedure. Mechanical hardness and strength tabulations are provided to document sintered properties. mechanical properties performance test sintering Sintering produces a strong engineering component. Properties are dominated by composition, such as the high density associated with tungsten...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290251
EISBN: 978-1-62708-319-5
... additive manufacturing, including bound-metal deposition and fused-filament fabrication: oxidation-resistant high-temperature alloys, anisotropic structures, submicrometer-scale structures, surface hard materials, and artist metallic clays. Some of the advances discussed include the developments in process...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290201
EISBN: 978-1-62708-319-5
... alloy. This chapter includes information on the powder options, binders, feedstock, shaping, and thermal processing required to deliver the desired strength, hardness, or other property. The shaping options include powder-binder approaches such as binder jetting, injection molding, extrusion, slip and...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290111
EISBN: 978-1-62708-319-5
... feedstock formulation. The annual production quantity is another significant factor in process selection. The cost of hard, custom-machined tooling is amortized over the production quantity. Options such as die compaction, powder injection molding, and extrusion are generally reserved for production...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.9781627083195
EISBN: 978-1-62708-319-5
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290001
EISBN: 978-1-62708-319-5
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290009
EISBN: 978-1-62708-319-5
.... , Lee S. , Hoh J.W. , Lee S.H. , Jeong I.D. , and Park S.J. , Rheological and Sintering Behaviours of Nanostructured Molybdenum Powder , Int. J. Refract. Met. Hard Mater. , Vol 41 , 2013 , p 442 – 448 10.1016/j.ijrmhm.2013.06.001 • Lawley A. , Atomization: The...