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gas nitrocarburizing

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Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005806
EISBN: 978-1-62708-165-8
... Abstract This article summarizes the terminology for gas reactions, and discusses low-temperature nitriding and nitrocarburizing of stainless steels. It describes the various nitriding processes, namely, high- and low-pressure nitriding, oxynitriding, sulfonitriding, oxysulfonitriding, ferritic...
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
... the structure and properties of nitrided layers. gas nitriding gas nitrocarburizing nitriding plasma nitriding salt bath nitrocarburizing steel NITRIDING IS A GENERAL TERM for all processes based on the addition of nitrogen to the surface of steel, whether or not other interstitial...
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
... steel nitriding, the nitrocarburizing of steel ( Ref 1 ) also is done by the plasma method. Ion nitriding, when compared to conventional (gas) nitriding, offers more precise control of the nitrogen supply at the workpiece surface. Other advantages of ion nitriding are: Improved control of case...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005818
EISBN: 978-1-62708-165-8
... simultaneously with nitrogen. Different methods exist for introducing atomic nitrogen, or both atomic nitrogen and atomic carbon, into the surface of steel. As described in other articles in this Volume, various nitriding/nitrocarburizing atmospheres can be indicated: Gas (NH 3 -H 2 ) mixtures (see “Gas...
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
... and nitrocarburizing processes and the equipment required for heat treating tool steels to improve hardness, wear resistance, and thermal fatigue. The various nitriding and nitrocarburizing processes covered are salt bath nitrocarburizing, gas nitriding and nitrocarburizing, and plasma nitriding and...
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
...-contact fatigue (RCF) occurs in rolling contacts such as bearings, rolls, and gears. The article provides a discussion on rolling-contact fatigue of nitrided steels for aerospace bearing components. nitrocarburized steels nitriding nitrogen carbon nitrocarburizing sulfur sulfonitriding gas...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006428
EISBN: 978-1-62708-192-4
... Abstract This article illustrates typical wear and friction issues encountered in gas and steam turbines and their consequences as well as commonly adopted materials solutions. It contains tables that present the summary of wear and friction related issues encountered in steam turbines and gas...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003197
EISBN: 978-1-62708-199-3
..., carbon and hardness gradients, and process procedures of different types of case hardening methods: carburizing (gas, pack, liquid, vacuum, and plasma), nitriding (gas, liquid, plasma), carbonitriding, cyaniding and ferritic nitrocarburizing. An accurate and repeatable method of measuring case depth is...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005927
EISBN: 978-1-62708-166-5
... the transport of articles to the quench tank to prevent decarburization or oxidation. Fluidized beds, using atmospheres composed of ammonia, natural gas (or methane), nitrogen, and air, or similar combinations, are capable of performing low-temperature nitriding and nitrocarburizing treatments...
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
.... case depth case hardness liquid nitriding liquid nitrocarburizing safety precautions salt bath furnaces salt bath nitrocarburizing steel LIQUID NITRIDING (nitriding in a molten salt bath) employs the same temperature range as gas nitriding, that is, 510 to 580 °C (950 to 1075 °F). The case...
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: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005959
EISBN: 978-1-62708-168-9
.... After the (catalytic) layer is deposited, nitriding, carburizing, or nitrocarburizing can be carried out in conventional gas atmospheres, at sufficiently low temperatures to prevent nitride/carbide formation. The advantages of this method are that activated stainless steel can be stored before the...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005784
EISBN: 978-1-62708-165-8
... and nitrocarburizing in gas is mainly based on a fine tin powder dispersed in a lacquer consisting of a solvent + synthetic binder or water + synthetic emulsion. The stop-off effect is based on a layer of molten tin dispersed on the steel surface. It acts as a gas tight barrier, preventing the...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005928
EISBN: 978-1-62708-166-5
... atmosphere when metals are exposed to elevated temperatures. Prevention of steel decarburization or actually causing it may be another important function of a furnace atmosphere, while some processes such as gas carburizing, carbonitriding, nitrocarburizing, and gas nitriding depend on consistent levels of...
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
... used to modify the composition of the nitrided layer, especially its outer TiN zone, increasing its hardness. The process may also be unintentional when the atmosphere contains some hydrocarbons from the oil pump, or intentional during the nitrocarburizing process ( Ref 30 , 67 ). Gas nitriding of...
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
... involving 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...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005956
EISBN: 978-1-62708-166-5
... of the part. Figure 35 shows this effect for several gas-nitrided (nitrocarburized) hollow cylinders. If the wall thickness of the cylinders is small compared to the compound layer, a positive change in inner and outer diameter is measured, because the stresses result in a circumferential...
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
...-current plasma and low-temperature gaseous nitrocarburizing Type of nitrocarburizing Plasma Gaseous Plasma/gaseous Amount of gas used, m 3 /h 0.6 6.0 10 Total carbon emission via CO/CO 2 , mg/m 3 506 137,253 272 Total amount of NO x gas, mg/m 3 1.2 664 553 Output of...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005762
EISBN: 978-1-62708-165-8
... many names, such as dry cyaniding, gas cyaniding, nicarbing, and others ( Ref 4 , 5 ). The nitriding process of nitrocarburizing also has been improperly used as reference to the carbonitriding process. Part of this confusion is that the term carbonitriding seems to imply a nitriding process...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005870
EISBN: 978-1-62708-167-2