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ion nitriding
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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
... Abstract Plasma (ion) nitriding is a method of surface hardening using glow-discharge technology to introduce nascent (elemental) nitrogen to the surface of a metal part for subsequent diffusion into the material. This article describes the procedures and applications of plasma nitriding...
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in Plasma (Ion) Nitriding and Nitrocarburizing of Steels
> Steel Heat Treating Fundamentals and Processes
Published: 01 August 2013
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in Plasma (Ion) Nitriding and Nitrocarburizing of Steels
> Steel Heat Treating Fundamentals and Processes
Published: 01 August 2013
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in Plasma (Ion) Nitriding and Nitrocarburizing of Steels
> Steel Heat Treating Fundamentals and Processes
Published: 01 August 2013
Fig. 14 Case depth vs. square root of ion nitriding time for Nitralloy 135M and 4140 steel. Source: Ref 18
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Published: 01 January 1994
Fig. 8 Surface (case) and core hardness as functions of ion nitriding time and temperature for 18Ni (300) maraging steel. Source: Ref 20
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Published: 30 September 2014
Fig. 27 Schematic showing basic elements of an ion-nitriding system. High-kinetic-energy nitrogen-ion bombardment on the workpiece surface is indicated by blue-white glow discharge around the components.
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Published: 30 September 2014
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Published: 01 December 2004
Fig. 44 Ion nitrided AISI H13 tool steel with a brittle white-etching iron nitride layer at the extreme surface. (a) Mounted with silica-filled epoxy. (b) Nickel plated and mounted with silica-filled epoxy. Vilella's reagent. Note that in (b) the iron nitride layer may be easily missed due
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in Plasma (Ion) Nitriding and Nitrocarburizing of Steels
> Steel Heat Treating Fundamentals and Processes
Published: 01 August 2013
Fig. 20 Compound layer on the ion-nitrided surface of quenched and tempered 4140 steel. The compound layer is supported by a diffused case, which is not observable in this micrograph. Nital etched. Original magnification: 500×
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in Plasma (Ion) Nitriding and Nitrocarburizing of Steels
> Steel Heat Treating Fundamentals and Processes
Published: 01 August 2013
Fig. 21 Observable diffusion zone on the unetched (white) portion of an ion-nitrided 416 stainless steel. Nital etched. Original magnification: 500×
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in Plasma (Ion) Nitriding and Nitrocarburizing of Steels
> Steel Heat Treating Fundamentals and Processes
Published: 01 August 2013
Fig. 23 Hardness profile for various ion-nitrided materials. 1, gray cast iron; 2, ductile cast iron; 3, AISI 1040; 4, carburizing steel; 5, low-alloy steel; 6, nitriding steel; 7, 5% Cr hot-worked steel; 8, cold-worked die steel; 9, ferritic stainless steel; 10, AISI 420 stainless steel; 11
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Published: 01 January 2002
Fig. 1 SEM images of (a) IG fracture in ion-nitrided layer of ductile iron (ASTM 80-55-06), (b) transgranular fracture by cleavage in ductile iron (ASTM 80-55-06), and (c) ductile fracture with equiaxed dimples from microvoid coalescence around graphite nodules in a ductile iron (ASTM 65-40-10
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Published: 01 January 2002
Fig. 12 Light micrograph of an ion-nitrided H13 tool steel specimen mounted in epoxy thermosetting resin (Epomet). The arrows point to a white-etching iron nitride layer at the surface that probably would not have been observed if the specimen was nickel plated for edge protection. Specimen
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Published: 01 January 1994
Fig. 7 Hardness profiles for various ion-nitrided materials. 1, gray cast iron; 2, ductile cast iron; 3, AISI 1040; 4, carburizing steel; 5, low-alloy steel; 6, nitriding steel; 7, 5% Cr hot-work steel; 8, cold-worked die steel; 9, ferritic stainless steel; 10, AISI 420 stainless steel; 11, 18
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Published: 01 January 1994
Fig. 8 Observable diffusion zone on the unetched (white) portion of an ion-nitrided 416 stainless steel. Nital etched. 500×
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Published: 31 December 2017
Fig. 4 Micrograph and hardness profile in M-2 tool steel bead insert ion nitrided at 482 °C (900 °F) for 15 h in a mixture of 5% nitrogen and 95% hydrogen. Surface hardness: 1080 HV and 94.2 HR-15N. Source: Adapted from Ref 12
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Published: 01 December 2004
Fig. 31 Compound layer of γ′(Fe 4 N) on the ion-nitrided surface of quenched and tempered 4140 steel. The γ′ compound layer is supported by a diffused case, which is not observable in this micrograph. Nital etch. 500×
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Published: 01 December 2004
Fig. 32 Observable diffusion zone on the unetched (white) portion of an ion-nitrided 416 stainless steel. Nital etch. 500×
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Published: 01 December 2004
Fig. 36 Pure diffusion and monophase layers on ion-nitrided steel. (a) Pure diffusion zone with no white layer on Fe-0.31C-2.50Cr-0.2Mo-0.15V steel that was ion nitrided for 36 h at 525 °C (975 °F). Tempered before nitriding to 35 HRC. 2% nital etch. 750×. (b) Monophase surface layer of Fe 4 N
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Published: 15 January 2021
Fig. 4 Light micrograph of an ion-nitrided H13 tool steel specimen mounted in epoxy thermosetting resin. The arrows point to a white-etching iron nitride layer at the surface that probably would not have been observed if the specimen was nickel plated for edge protection. Specimen etched
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