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plasma nitrocarburizing

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Published: 01 August 2013
Fig. 28 Plasma nitrocarburizing installation for heat treating a load of 3000 automotive seat rails. Courtesy of Klockner Ionon GmbH More
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
... studies, and applications of nitrocarburizing of steel. glow-discharge process microstructure nitrocarburizing plasma nitriding plasma nitrocarburizing process control steel Introduction Plasma nitriding (also known as ion nitriding, plasma ion nitriding, or glow-discharge nitriding...
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Published: 01 December 1998
Fig. 18 Microstructure (a) of a plasma nitrocarburized plain carbon steel (En 8) sample with (b) corresponding diffraction pattern. The compound layer consists of varying amounts of Є (Fe 2–3 N) and γ′ (Fe 4 N) nitrides, the amounts of which can be controlled by furnace atmosphere selection. More
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Published: 31 December 2017
Fig. 28 Micrograph of duplex 2205 stainless steel plasma nitrocarburized at 370 °C (700 °F) for 15 h More
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Published: 01 January 1994
Fig. 5 Microstructure of a plasma nitrocarburized P/M steel with a compound surface layer thickness of 10 μm. Source: Ref 7 More
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Published: 01 August 2013
Fig. 25 (a) Microstructure of Armco iron plasma nitrocarburized at 570 °C (1060 °F) for 3 h at a gas pressure of 3.5 mbar. Gas mixture: 90 vol% N 2 , 1 vol% CO 2 , 9 vol% H 2 . Etched in a 1 mL mix of hydrochloric acid (HCl) and ethanol (1 part concentrated HCl + 10 parts ethanol) plus 99 mL 5 More
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Published: 01 August 2013
Fig. 26 (a) Microstructure of a plasma-nitrocarburized EN8 steel sample with (b) the corresponding x-ray diffraction pattern. See Fig. 25 for processing details. More
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Published: 01 August 2013
Fig. 27 (a) Microstructure of a plasma-nitrocarburized EN40B steel sample with (b) the corresponding x-ray diffraction pattern. See Fig. 25 for processing details. More
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Published: 01 October 2014
Fig. 32 Schematic of plasma nitriding and nitrocarburizing equipment. 1 and 2, gas introduction; 3, thermocouple; 4, cathode; 5, pressure sensor; 6 to 8, needle valve; 9, diaphragm valve; 10, solenoid; 11, vacuum pump; 12, sample holder; 13, sample; 14, anode; 15, sealing ring; 16, stainless More
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Published: 01 October 2014
Fig. 19 Chemical profiles for ASTM F138 steel sample plasma nitrided (PN), plasma carburized (PC), and plasma nitrocarburized (PNC) at 425 °C (800 °F). Source: Ref 16 More
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Published: 01 October 2014
Fig. 21 Lost wear volume. Plasma nitriding (PN) at 400 °C (750 °F), plasma carburizing (PC) at 450 °C (840 °F), and plasma nitrocarburizing (PNC) at 400 and 450 °C. Source: Ref 16 More
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Published: 01 October 2014
Fig. 20 Hardness profiles of ASTM F138 steel sample plasma nitrided (PN) at 400 °C (750 °F), plasma carburized (PC) at 450 °C (840 °F), and plasma nitrocarburized (PNC) at 400 and 450 °C. Source: Ref 16 More
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Published: 31 December 2017
Fig. 6 Micrograph and hardness profile in Fe-0.8 wt% P sintered material after plasma nitrocarburizing at 566 °C (1051 °F) for 6 h in a mixture of 70% nitrogen, 3% methane, and 27% hydrogen. Note the porous zone in the compound layer near the surface. More
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
... (cyanate-cyanide) baths Plasma nitriding and plasma nitrocarburizing with ionized gases Typical characteristics of these nitriding processes are summarized in Table 1 along with a general comparison of carburizing processes. Carburizing and carbonitriding involve transformation hardening, which...
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 nitrided layers. It describes the structural changes on the surface of carbon steels, alloy steels, and austenitic stainless steels. The article explains the effects of the various nitriding processes, namely, gaseous nitriding, plasma nitriding, gaseous nitrocarburizing, and salt bath nitrocarburizing...
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
... has less tendency to spall and is thus even more beneficial to fatigue strength. Figure 19 shows the chemical composition depth profiling of elements for ASTM F138 austenitic stainless steel obtained with the following treatments: PN, PC, and plasma nitrocarburizing (PNC) at 425 °C (800 °F...
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...
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 nitrocarburizing...
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Published: 31 December 2017
Fig. 13 Surface roughness of G3500 gray cast iron samples nitrocarburized at 570 °C (1060 °F) for 4 h using plasma (50% nitrogen, 2% methane, and 48% hydrogen) and one-step gas ( K N = 3.5 and K C = 0.24) methods. Adapted from Ref 9 More
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Published: 31 December 2017
Fig. 12 Scanning electron microscopy surface images of G3500 gray cast iron samples nitrocarburized at 570 °C (1060 °F) for 4 h using (a) plasma (50% nitrogen, 2% methane, and 48% hydrogen) and (b) one-step gas ( K N = 3.5 and K C = 0.24) methods. Adapted from Ref 11 More