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carburized components

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Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005790
EISBN: 978-1-62708-165-8
... in higher-carbon and alloy steels. The presence of even small amounts of untempered martensite can lead to embrittlement. Induction Thread Softening A practical application of induction normalizing and subcritical annealing is thread softening. The threaded area on carburized components...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005811
EISBN: 978-1-62708-165-8
... of carbonitriding is also briefly described in the article. carbonitriding carburizing chemical reactions quality assurance residual stress steel Introduction There are many occasions when it is beneficial for a component to have the strength and wear resistance of a high-carbon steel...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006406
EISBN: 978-1-62708-192-4
... carburized steel hardness microstructure retained austenite carbides titanium THERE ARE MANY OCCASIONS where it is beneficial for a component to have high strength and wear resistance on its exterior (case) while simultaneously possessing toughness and ductility at the center (core). Carburization...
Image
Published: 01 January 2002
Fig. 49 Steel shaft (AISI 4817) carburized and hardened to HRC 60. Component loaded in rotating bending. Fracture initiation in six fillet areas around the periphery. Six initiation sites are visible as evidenced by multiple sets of beach marks (curved black lines). Source: Ref 29 More
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002400
EISBN: 978-1-62708-193-1
...Abstract Abstract Bending fatigue of carburized steel components is a result of cyclic mechanical loading. This article reviews the alloying and processing factors that influence the microstructures and bending fatigue performance of carburized steels. These include austenitic grain size...
Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005987
EISBN: 978-1-62708-168-9
... hardness. Fig. 2 Gear profile. HPSTC, highest point of single tooth contact; LPSTC, lowest point of single tooth contact. Source: Ref 3 Effective case depth is the most important parameter for a carburized component, and a consistent understanding of its meaning across various functions...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005813
EISBN: 978-1-62708-165-8
...Abstract Abstract Low-pressure carburizing (LPC) is one of the most popular case-hardening processes and is applied to increase the fatigue limit of dynamically loaded components. It takes place in a pressure range between 5 and 15 mbar (4 and 11 torr) and at temperature range between 870...
Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005939
EISBN: 978-1-62708-168-9
... industrial process for enhancing the surface hardness of metal and alloy components. In a typical commercial process, a carburizing gas contacts the workpiece at elevated temperature and carbon atoms diffuse into the metal surface. Hardening occurs through the formation of carbide precipitates. Gas...
Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005978
EISBN: 978-1-62708-168-9
... even if made of the same material in the same type of heat treat operation. Thus, the thermal treatment engineering process is designed and conducted for each component. Details of various thermal treating processes (e.g., carburizing, nitriding, induction hardening, etc.) are described in individual...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001024
EISBN: 978-1-62708-161-0
... at various cutting speeds in the machining of 52100 and 4320 steel tubing Table 1 compares selected mechanical properties of the core material in a quenched and tempered carburizing steel with those of the unhardened portion of an induction-hardened high-carbon steel component. The values for both...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005799
EISBN: 978-1-62708-165-8
...Abstract Abstract This article describes the thermodynamics and kinetics of gas carburizing reactions, and details the mass transfer mechanism during gas carburizing. It discusses the various considerations involved in carburizing process planning, and reviews successful operation of the gas...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005809
EISBN: 978-1-62708-165-8
... in industrial and consumer products. Ideally, during quenching the transformation temperature should be the same throughout the entire cross section of the component so that it is capable of transforming uniformly. However, in case-carburized components, the martensite start transformation temperature...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002466
EISBN: 978-1-62708-194-8
...Abstract Abstract Surface treatments are used in a variety of ways to improve the material properties of a component. This article provides information on surface treatments that improve service performance so that the design engineer may consider surface-engineered components as an alternative...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005771
EISBN: 978-1-62708-165-8
... the atmosphere, carburizing in an oxygen-free environment at very low pressure (vacuum carburizing) has been explored and developed into a viable and important alternative. Although the furnace enclosure in some respects becomes more complex, the atmosphere is greatly simplified. A single-component atmosphere...
Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005951
EISBN: 978-1-62708-168-9
... that will determine the heat treatment to be used, obviously the steel and the treatment must be considered simultaneously. Some carburizing steels are suited to particular types of component applications, such as bearings and gears (which are two major applications of the carburizing process). For example...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002489
EISBN: 978-1-62708-194-8
... and residual stress patterns in heat-treated components: Metalworking, machining, or other forming operations Component heat-up Hold at temperature for through-heating, solutionizing, or thermal chemical treatments such as carburizing or nitriding Quenching from elevated temperature...
Book Chapter

Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005765
EISBN: 978-1-62708-165-8
... and reheat to austenitizing temperatures. Decarburization can occur if components are allowed to air cool without protection. Grinding is necessary to remove surface porosity. It is labor intensive. Carburizing Medium and Compounds The basic component of the carburizing medium is ground...
Book Chapter

By J.Y. Shi
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005812
EISBN: 978-1-62708-165-8
... such as chromium, molybdenum, vanadium, and so forth; however, the carburizing technology used is very simple. By using solid-state electronic theory with programming based on matrix theory, the component design experience formula for multiples of carbon in low-alloy steel was established ( Ref 29 ). Based...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003099
EISBN: 978-1-62708-199-3
... of materials. The data in Table 3 show that the strength and toughness of the core are greater in the quenched and tempered low-carbon steels than in the unhardened portion of an induction-hardened high-carbon steel bearing part. Core properties of carburized versus induction-hardened components Table 3...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005868
EISBN: 978-1-62708-167-2
... of carburized components with the deeper hardened depth that can be achieved with induction. Because carburized components exhibit a carbon content near the eutectoid content, they show higher surface hardness after quenching than the medium-carbon steels typically used for induction. This high hardness can...