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vacuum treatment

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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 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...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250163
EISBN: 978-1-62708-345-4
.... , Gear Heat Treatment, Part II , Heat. Treat. Prog. , July/Aug 2002 , p 27 – 31 8. Lindell G.D. , Herring D.H. , Breuer D.J. , and Matlock B.S. , Atmosphere versus Vacuum Carburizing , Heat Treat. Prog. , Nov 2001 , p 33 – 41 9. Titus W.J...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280135
EISBN: 978-1-62708-267-9
..., and practical considerations, including heating and cooling rates for wrought and cast superalloys and combined treatments such as solution annealing and vacuum brazing. annealing precipitation hardening stress relieving superalloys Introduction Heat Treatment Types Heat Treatment Procedures...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.aceg.t68410091
EISBN: 978-1-62708-280-8
...-pressure permanent mold castings and die castings, the functional requirements of each process, and the corresponding suitable alloys and heat treatments; and alloys that are high vacuum die cast for structural castings. The chapter also presents examples of photomicrographs of some alloys cast...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220009
EISBN: 978-1-62708-259-4
... composition and temperature. The first large-scale secondary process developed was vacuum degassing. Because of the problems caused by hydrogen absorbed during the steelmaking process (see Chapter 10, “Conventional Heat Treatment: Basic Concepts,” in this book), vacuum processes have been developed...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240395
EISBN: 978-1-62708-251-8
...Abstract Abstract This chapter discusses the process characteristics, advantages, disadvantages, and applications of various processes involved in surface hardening of steel. These include pack carburizing, liquid carburizing, gas carburizing, vacuum carburizing, plasma carburizing, gas...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220281
EISBN: 978-1-62708-341-6
... treatment and fabrication. This chapter summarizes some of the special applications of induction heating, including those in the plastics, packaging, electronics, glass, chemical, and metal-finishing industries. The chapter concludes with a discussion of the application of induction heating for vacuum...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480161
EISBN: 978-1-62708-318-8
... ksi MPa ksi MPa = m ksi = in. As-cast 895 130 1000 145 8 16 71–77 65–70 Cast + HIP (HIP at 890 °C, or 1650 °F) 870 126 960 139 10 18 91 83 Cast + HIP + near-beta heat treatment (a) 870 126 965 140 8 17 ... ... Cast + HIP + beta heat...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410551
EISBN: 978-1-62708-265-5
...,” in this book. Other microstructural factors, such as grain-size control and residual stresses, remain the same as in gas-carburized steels. Herring describes in detail all aspects of the technology of vacuum heat treatment and carburizing ( Ref 22.23 ). Ion implantation is a surface-modification process...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.htgpge.t67320033
EISBN: 978-1-62708-347-8
..., molybdenum), normally are used. The processes involved in hardening, tempering, recarburizing, and cold treatment of carburized and quenched gears are discussed. Next, the chapter reviews the selection of materials for carburized gears and considerations related to carbon content, core hardness...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350183
EISBN: 978-1-62708-315-7
... when assessing surface treatment costs is part size. There are some critical sizes for each surface-treatment process above which the cost of obtaining the treatment may be high. A number of surface treatments require that the part fit into the work zone of a vacuum chamber. The cost of vacuum...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350087
EISBN: 978-1-62708-315-7
...Abstract Abstract This chapter discusses surface engineering treatments, including flame hardening, induction hardening, high-energy beam hardening, laser melting, and shot peening. It describes the basic implementation of each method, the materials for which they are suited, and their effect...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440141
EISBN: 978-1-62708-262-4
... for the iron-nitrogen system. Treatment times generally range from 1 to 5 h. Plasma nitrocarburizing is a method of surface hardening employing vacuum and glow-discharge technology similar to plasma (ion) nitriding except that mixtures of hydrogen, nitrogen, and a carbon-bearing gas such as methane...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280149
EISBN: 978-1-62708-267-9
... welding techniques, defect prevention, fixturing, heat treatments, and general practices, including the use of filler metals. It also discusses several solid-state welding methods, superplastic forming, and transient liquid phase bonding, a type of diffusion welding process. The chapter includes extensive...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240563
EISBN: 978-1-62708-251-8
... cobalt-based superalloys melting primary fabrication heat treatment secondary fabrication aluminide diffusion coatings overlay coatings SUPERALLOYS are nickel-, iron-nickel-, and cobalt-base alloys generally used at temperatures above approximately 540 °C (1000 °F). They exhibit a combination...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120047
EISBN: 978-1-62708-269-3
... (powder under vacuum), French-made powder; BUS, broken-up structure; TCP, thermochemical processing; REP, rotating-electrode process; STA, solution treated and aged; PREP, plasma rotating-electrode process; ELI, extra-low interstitial; HPLT, high-pressure low-temperature compaction; RA, recrystallization...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350095
EISBN: 978-1-62708-315-7
... properties High degree of control and reproducibility Limited thickness of treated material High-vacuum process Line-of-sight process Alloy concentrations dependent on sputtering Relatively costly process; intensive training required compared to other surface treatment processes...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060197
EISBN: 978-1-62708-261-7
... on hardenability and tempering response. It discusses the significance of critical temperatures, the use of transformation diagrams, and types of annealing treatments. It also provides information on heat treating furnaces, the effect of heating rate on transformation temperatures, quench and temper procedures...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120065
EISBN: 978-1-62708-269-3
... bonding Fig. 9.11 Diffusion welds in hollow fan hub for a gas turbine engine Fig. 9.12 Vacuum hot press used for diffusion bonding of turbofan disks and/or hubs. Courtesy of Pratt & Whitney Aircraft Group Fig. 9.9 Setup for inert gas shielding for gas-tungsten arc welding...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.smnm.t52140189
EISBN: 978-1-62708-264-8
... on surface modification techniques. Surface Heat Treatments Surface Diffusion Layers Summary of the Major Ideas in Chapter 17 References References 17.1. Heat Treater’s Guide: Practices and Procedures for Irons and Steels , ASM International , 1995 17.2. Heat Treating , Vol 4...