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induction tempering

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Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050155
EISBN: 978-1-62708-311-9
... Abstract Induction hardened steels are often tempered to increase their ductility and relieve quenching stresses. During tempering, martensitic microstructures supersaturated with carbon decompose into a more stable, ductile form. This chapter discusses the transformations associated...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310163
EISBN: 978-1-62708-326-3
... Abstract This chapter discusses the processes involved in the heat treatment of steel, namely austenitizing, hardening, quenching, and tempering. It begins with an overview of austenitizing of steels by induction heating, followed by a discussion on the processes involved in transformation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050191
EISBN: 978-1-62708-311-9
.... The initial applications involved hardening of the surfaces of round steel parts such as shafts. Subsequent surface-hardening techniques were developed for other parts whose shapes are not so simple. Most recently, induction-hardening and tempering techniques have been developed for purposes of heat treating...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050001
EISBN: 978-1-62708-311-9
...-to-air missiles. The bodies required a soft nose to allow collapse on impact, to explode the missile. The requirement was for the body to be hard but the nose totally soft. At that time induction tempering did not produce parts in specification. A 20 kW RF induction heater was used for austenitizing...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050057
EISBN: 978-1-62708-311-9
.... Semiatin S.L. and Stutz D.E. , Induction Heat Treating of Steel , American Society for Metals , 1986 12. Induction Tooling , unpublished data 13. Weiss K. , Induction Tempering of Steel , Adv. Mater. Process. , Aug 1999 Selected Reference • Doyon G...
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
... 10.31399/asm.hb.v04c.a0005871 8. Samuels L.E. , Light Microscopy of Carbon Steel , ASM International , 1999 9. Weiss K. , Induction Tempering of Steel , Adv. Mater. Process. , Aug 1999 10. Materials Selection and Design , Vol 20 , ASM Handbook , ASM International...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.9781627083119
EISBN: 978-1-62708-311-9
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050215
EISBN: 978-1-62708-311-9
... for induction hardening is the microstructure produced by quenching and tempering. AISI 4150 steel has high enough carbon to quench optimally to a surface hardness of 63 HRC. However, if 4150 is fully annealed, it may not quench over 54 HRC when induction hardened. Fig. 11.2 As-quenched hardness vs...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440159
EISBN: 978-1-62708-262-4
... workpieces is always helpful in developing specific procedures. Electromagnetic induction is a very important and widely used method of heating a metal part. It can be used for several types of heat treating operations such as normalizing, annealing, heating for hardening, tempering...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050175
EISBN: 978-1-62708-311-9
.... Picral etchants define pearlite and show the ferrite (the decarburized area) as white. The nital etchants that are used for defining induction-hardened cases will not define decarburization very well unless the workpieces are tempered at a sufficiently high temperature to produce dark, tempered...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050263
EISBN: 978-1-62708-311-9
... procedures call for tempering if the workpiece is over the specified hardness. The balance of this Chapter focuses on the typical types of defects found during induction heat treating and possible remedies. Inspection normally starts with first article inspection, followed by a system for periodic testing...
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
... – 584 21.12 Speich G.R. and Szirmae A. , Formation of Austenite from Ferrite and Ferrite-Carbide Aggregates , Trans. TMS-AIME , Vol 245 , 1969 , p 1063 – 1074 21.13 Wong J.D. , Matlock D.K. , and Krauss G. , Effects of Induction Tempering on Microstructure...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740271
EISBN: 978-1-62708-308-9
... various steels respond to heat treatments, such as annealing, normalizing, spheroidizing, tempering, and direct and interrupted quenching, and surface-hardening processes, such as flame and induction hardening, carburizing, nitriding, and carbonitriding. It also addresses the issue of temper embrittlement...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050009
EISBN: 978-1-62708-311-9
... magnetic fields. Fig. 2.1 Induction coils with electromagnetic fields. OD: outside diameter; ID: inside diameter. Source: Ref 1 Induction heat treating involves heating a workpiece from room temperature to a higher temperature, such as is required for induction tempering or induction...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050173
EISBN: 978-1-62708-311-9
..., similar to a thin lacquer, making cleaning very difficult after removal from the tempering furnace. While many types of solvent cleaners can be used, environmentally it is easy to use an industrial washer to remove the oil. Surface finish after quenching an induction-hardened part can be important...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050139
EISBN: 978-1-62708-311-9
... Abstract This chapter discusses the quenching process and its adaptation to induction heat treating. It describes the three stages of quenching, the cooling characteristics of various types of quenchants, and the details of nearly a dozen compatible quenching methods. It also explains how...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050343
EISBN: 978-1-62708-311-9
... for 4150 steel. Tempered 1 h at heat; as quenched, 62 HRC at 120 °C (250 °F). Source: Ref 1 Fig. A5.5 Tempering curve for E52100 steel: average based on a fully quenched structure. Source: Ref 2 References 1. Haimbaugh R.E. , Induction Heat Treating Corp. , personal...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220253
EISBN: 978-1-62708-341-6
.... At the same time, it must be capable of heating billets of various lengths. Handling of materials during induction heat treatment, be it hardening, tempering, or another process, depends to a great extent on part shape. However, handling devices can be broken into two major categories: those...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220085
EISBN: 978-1-62708-341-6
... and Application of Radio Frequency Heating , Van Nostrand , New York , 1947 6. Waggott R. , et al ., Metals Technology , Vol 9 , December , 1982 , p 493 10.1179/030716982803285954 7. Spencer T. H. , et al. , Induction Hardening and Tempering , ASM , Metals Park, OH , 1964...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220001
EISBN: 978-1-62708-341-6
... heating is also useful for selectively preheating bar stock for forming operations such as heading. Induction heating is used in surface and through hardening, tempering, and annealing of steels. A primary advantage is the ability to control the area that is heat treated. Induction hardening, the most...