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ion nitriding equipment

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Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003685
EISBN: 978-1-62708-182-5
... film properties—including better adhesion and cohesion of the film, modified residual stress, and higher density— when compared with similar films prepared by PVD without ion bombardment. When the ion beam or the evaporant is a reactive species, compounds such as refractory silicon nitride (Si 3 N 4...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005791
EISBN: 978-1-62708-165-8
... mechanical masking or protective pastes Limitations of ion nitriding include: Inhomogeneous plasma distribution Limited temperature control Expensive equipment Localized overheating and the potential for arcing also are limitations for conventional ion nitriding, where the workpieces...
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
..., nitriding, carbonitriding, and austenitic and ferritic nitrocarburizing, as well as selective-hardening methods, such as laser transformation hardening, electron beam hardening, ion implantation, selective carburizing, and surface hardening with arc lamps. The article also discusses the factors affecting...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006273
EISBN: 978-1-62708-169-6
.... Equal success has been obtained with nitriding trials using simple direct current (dc) ( Ref 4 , 10 ), pulsed dc discharge plasma ( Ref 5 , 11 ), as well as high-frequency plasma ( Ref 6 ) and microwave discharge plasma ( Ref 7 , 12 ) ( Table 4 ). In addition, plasma immersion ion implantation (PIII...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006355
EISBN: 978-1-62708-192-4
... characteristics of nitriding processes along with a general comparison of carburizing processes in a table. It describes the two most common nitriding methods: gas nitriding and ion (plasma) nitriding. The article discusses the wear behavior of nitrided layers and the wear resistance of selected steels. Rolling...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003197
EISBN: 978-1-62708-199-3
... Abstract Case hardening is defined as a process by which a ferrous material is hardened in such a manner that the surface layer, known as the case, becomes substantially harder than the remaining material, known as the core. This article discusses the equipment required, process variables...
Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005977
EISBN: 978-1-62708-168-9
... The S-phase layer presents much-enhanced mechanical, tribological, and fatigue properties as compared to those of the substrate or of a white layer composed mainly of hard nitrides ( Ref 6 ). Pronounced hardening, up to 1400 HV for austenitic stainless steels, is typical of low-temperature ion nitriding...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006269
EISBN: 978-1-62708-169-6
... , 6 , 7 ). The partial pressure of oxygen required for the formation of titanium oxide is extremely low. Therefore, nitriding of titanium requires gases of high purity and very well-sealed equipment for minimizing the content of oxygen or water vapor. In atmospheres containing hydrogen, the negative...
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
... surface hardening and diffusion coatings such as carburizing, nitriding, and carbonitriding. The article also tabulates typical characteristics of carburizing, nitriding, and carbonitriding diffusion treatments. carbonitriding carburizing chemical vapor deposition diffusion coatings electro...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003762
EISBN: 978-1-62708-177-1
...–70 Most ferrous metals, including cast irons Usually used for thin, hard cases <25 μm (1 mil), no white layer, most are proprietary processes Ion 340–565 (650–1050) 75 μm–0.75 mm (3–30 mils) 50–70 Alloy steels, nitriding steels, stainless steels Faster than gas nitriding, no white layer...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002494
EISBN: 978-1-62708-194-8
... of process and equipment modifications to avoid such problems during plasma nitriding. Reference 12 discusses the effect of part geometry on the growth of the nitride layer during ion nitriding and how coating uniformity can be improved for grooved surfaces. As in electroplating, decreasing the aspect...
Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005958
EISBN: 978-1-62708-168-9
... Abstract This article provides a detailed discussion on the heating equipment used for austenitizing, quenching, and tempering tool steels. These include salt bath furnaces, controlled atmosphere furnaces, fluidized-bed furnaces, and vacuum furnaces. The article discusses the types of nitriding...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001290
EISBN: 978-1-62708-170-2
..., when compared with similar films prepared by PVD without ion bombardment. When the ion beam or the evaporant is a reactive species, compounds such as refractory silicon nitride (Si 3 N 4 ) can be synthesized at very low temperatures. Furthermore, adjustment of the ratio of reactive ions to atoms...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001305
EISBN: 978-1-62708-170-2
... electroplating electropolishing emulsion cleaning finishing flame hardening grinding ion implantation laser surface processing mechanical cleaning nitriding painting passivation salt bath descaling solvent cleaning stainless steel surface blackening surface modification surface treatment terne...
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
... baths require frequent maintenance Vacuum Diffused carbon 815–1090 1500–2000 75 μm–1.5 mm (3–60 mils) 50–63 (a) Low-carbon steels, low-carbon alloy steels Excellent process control; bright parts; faster than gas carburizing; high equipment costs Nitriding Gas Diffused nitrogen...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005955
EISBN: 978-1-62708-166-5
... applications can include hardening, annealing, nitriding, carburizing, ion carburizing and ion nitriding, tempering, and stress relieving. Furnace equipment used in vacuum heat treating differs widely in size, shape, construction, and method of loading. Furnaces are equipped for work loads ranging from several...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001311
EISBN: 978-1-62708-170-2
... and oxidation resistance through the use of polishing, buffing, and wire brushing operations. The article also covers a wide range of surface modification and coating processes, including ion implantation, diffusion, chemical and physical vapor deposition, plating, anodizing, and chemical conversion coatings...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003220
EISBN: 978-1-62708-199-3
... elements forming stable 1015-1017 ions/cm2 important nitrides, has found use in tools and dies such as cobalt-cemented tungsten-carbide wire drawing Good adhesion between a film and substrate steel (replacing cadmium), and titanium; and inserts. Nitrogen implantation has been especially (for example...
Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005986
EISBN: 978-1-62708-168-9
... of 250 to 300 V is applied only to the screen ( Fig. 11 ). Fig. 11 Schematic presentation of the active-screen plasma nitriding equipment Nitriding is often combined with subsequent oxidizing in order to obtain a black surface finish. The oxidizing step is usually performed in the plasma...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005776
EISBN: 978-1-62708-165-8
... procedures, as well as the equipment used (salt bath furnaces) and safety precautions to be undertaken during the liquid nitriding process. It describes the different types of liquid nitriding process, namely, liquid pressure nitriding, aerated bath nitriding, and liquid nitrocarburizing. Environmental...