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pack cementation boriding

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Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005772
EISBN: 978-1-62708-165-8
... severe wear. This article presents a variety of methods and media used for boriding of ferrous materials, and explains their advantages, limitations, and applications. These methods include pack cementation boriding, gas boriding, plasma boriding, electroless salt bath boriding, electrolytic salt bath...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006420
EISBN: 978-1-62708-192-4
... electrolytic salt bath boriding process developed by Argonne National Laboratory (Illinois, USA) in the late 2000s had some problems with rapid deterioration of process equipment and difficulty of salt removal from the processed workpiece. Pack cementation continues to be the dominant boronizing process method...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003218
EISBN: 978-1-62708-199-3
... discusses the characteristics of different pack cementation processes, including aluminizing, siliconizing, chromizing, boronizing, and multicomponent coating. aluminizing boronizing chemical vapor deposition chemical vapor deposition materials chromizing multicomponent coating siliconizing...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005775
EISBN: 978-1-62708-165-8
... cementation processes are also described in the articles “Boriding (Boronizing) of Metals” and “Thermoreactive Deposition/Diffusion Process for Surface Hardening of Steels” in this Volume. The traditional pack consists of four components: the substrate or part to be coated, the master alloy (i.e...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001318
EISBN: 978-1-62708-170-2
...), refractory carbides and borides have been used for short time periods. Coating deposition techniques that have been used include pack cementation, CVD, and slurry processes. Coating architectures are normally built using combinations of these techniques. In the following sections, typical coating...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001105
EISBN: 978-1-62708-162-7
... 1949 , p 198 – 202 10.1007/BF03398095 89. Binder I. and Moskowitz D. , “Cemented Borides,” PB 121346, Office of Technical Services, U.S. Department of Commerce , 1954–1955 90. Steinitz R. and Binder I. , New Ternary Boride Compounds , Powder Metall. Bull...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001280
EISBN: 978-1-62708-170-2
... of various coating materials, namely, silicate glasses, oxides, carbides, silicides, and cermets. It reviews ceramic coating methods: brushing, spraying, dipping, flow coating, combustion flame spraying, plasma-arc flame spraying, detonation gun spraying, pack cementation, fluidized-bed deposition, vapor...
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
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003059
EISBN: 978-1-62708-200-6
...Abstract Abstract This article provides crystallographic and engineering data for single oxide ceramics, zirconia, silicates, mullite, spinels, perovskites, borides, carbides, silicon carbide, boron carbide, tungsten carbide, silicon-nitride ceramics, diamond, and graphite. It includes data...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005707
EISBN: 978-1-62708-171-9
... by molten metals. The majority of boriding processes are performed at temperatures between 700 and 1000 °C (1300 and 1800 °F). Pack boriding involves the use of boron carbide as a boron source with an activator compound such as BaF 2 , NH 4 Cl, or K 2 BF 4 . Paste boriding requires the application...
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
... in an atmosphere of a volatile compound of the coating material (out-of-contact gas-phase deposition, or chemical vapor deposition). As the coating bond is developed by diffusion, the bond strength is enhanced. Solid-state diffusion methods include pack cementation, which is the most widely employed diffusion...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003422
EISBN: 978-1-62708-195-5
... thermal mismatch stresses and low oxide-scale growth kinetics. In the higher temperature range, 1700 to 2200 °C (3090 to 3990 °F), refractory carbides and borides have been used for short time periods. Coating deposition techniques that have been used include pack cementation, CVD, and slurry processes...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006364
EISBN: 978-1-62708-192-4
... of thick wear-resistant coatings, namely, compound casting, deposition welding, and thermal spraying. abrasive wear-resistant coating borides carbides metal-matrix composites cemented carbides hardness wear-resistant material cobalt alloys iron alloys nickel-base alloys wear...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005773
EISBN: 978-1-62708-165-8
... reagents Stable quality of coating Better throwing power Uniform coating temperature Tight dimensional control Smaller shape distortion Most expensive equipment Good equipment design required for substrate steel hardening High-temperature powder-packing process Less...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001283
EISBN: 978-1-62708-170-2
...-laser CVD, particularly in critical applications where low temperature is essential. Closed-Reactor CVD or Pack Cementation The CVD systems described above use open reactors, in which reactants are introduced continuously and flow through the reactor ( Ref 1 ). Another important system utilizes...
Book Chapter

Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001293
EISBN: 978-1-62708-170-2
.... The article presents information on the coating formation mechanism of superalloys and explains the steps involved in a typical pack cementation process. It concludes with information on the processing procedures and properties of pack aluminized steels. aircraft engines coating formation diffusion...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001313
EISBN: 978-1-62708-170-2
... an aluminide to a silicide base in the mid 1950s. A list of the basic silicide coatings is shown in Table 6 . Most of the silicide coatings are deposited by pack-cementation diffusion processes. A major deficiency in the performance of silicide-base coatings appears when the system is used in low-pressure...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006079
EISBN: 978-1-62708-175-7
... by grinding Chromium carbides, chromium borides, in eutectic matrix Preheat to 315–425 °C (600–800 °F) to prevent cracking; slow cool Seal rings, cement pump screws, valves, cams Copper-base Oxide coating, good protection from atmosphere; good for many acids, bases, and saltwater Good Elastic limit...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003064
EISBN: 978-1-62708-200-6
... technology. The results showed that chemical vapor deposition (CVD) of SiC could provide reliable protection for long periods of time at temperatures below 1700 °C (3092 °F). Experiments with a variety of refractory carbides and boride coatings formed by reaction sintering demonstrated that protection...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003976
EISBN: 978-1-62708-185-6
... typically have been designed for specialized applications. Nonferrous materials, such as superalloys, TZM molybdenum, and cemented carbides, are also sometimes used for severe applications. Table 3 compares service temperatures of die materials used in forging operations. Typical service temperature...