Plasma nitriding of Fe-18Cr-9Ni in the range of 723-823 K

H. Kuwahara, H. Matsuoka, J. Takada, S. Kikuchi, Y. Tomii, I. Tamura

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

To clarify the mechanism of plasma nitriding, we examined the optical microstructure, the hardness, the precipitation, and the concentration of dissolved nitrogen in Fe-18Cr-9Ni nitrided using plasma in the range of 723-823 K. Compared with ammonia-gas nitriding, the features of plasma nitriding are the formation of small chromium-nitride precipitates (CrN), the absence of an externally nitrided layer, the high concentration of dissolved nitrogen, and the high hardness (HV=1200). The diffusion coefficient of nitrogen in the present alloy was determined using the growth rate of the internally nitrided layer, based on calculations used in internal oxidation. Plasma- and gas-nitriding were also compared with respect to the growth rate of the nitrided layer.

Original languageEnglish
Pages (from-to)143-156
Number of pages14
JournalOxidation of Metals
Volume36
Issue number1-2
DOIs
Publication statusPublished - Aug 1991

Fingerprint

Nitriding
Plasmas
Nitrogen
Hardness
Plasma Gases
Internal oxidation
Chromium
Gases
Ammonia
Nitrides
Precipitates
Microstructure

Keywords

  • CrN precipitates
  • Fe-18Cr-9Ni
  • kinetics
  • nitrogen diffusion
  • plasma nitriding

ASJC Scopus subject areas

  • Metals and Alloys

Cite this

Kuwahara, H., Matsuoka, H., Takada, J., Kikuchi, S., Tomii, Y., & Tamura, I. (1991). Plasma nitriding of Fe-18Cr-9Ni in the range of 723-823 K. Oxidation of Metals, 36(1-2), 143-156. https://doi.org/10.1007/BF00938459

Plasma nitriding of Fe-18Cr-9Ni in the range of 723-823 K. / Kuwahara, H.; Matsuoka, H.; Takada, J.; Kikuchi, S.; Tomii, Y.; Tamura, I.

In: Oxidation of Metals, Vol. 36, No. 1-2, 08.1991, p. 143-156.

Research output: Contribution to journalArticle

Kuwahara, H, Matsuoka, H, Takada, J, Kikuchi, S, Tomii, Y & Tamura, I 1991, 'Plasma nitriding of Fe-18Cr-9Ni in the range of 723-823 K', Oxidation of Metals, vol. 36, no. 1-2, pp. 143-156. https://doi.org/10.1007/BF00938459
Kuwahara H, Matsuoka H, Takada J, Kikuchi S, Tomii Y, Tamura I. Plasma nitriding of Fe-18Cr-9Ni in the range of 723-823 K. Oxidation of Metals. 1991 Aug;36(1-2):143-156. https://doi.org/10.1007/BF00938459
Kuwahara, H. ; Matsuoka, H. ; Takada, J. ; Kikuchi, S. ; Tomii, Y. ; Tamura, I. / Plasma nitriding of Fe-18Cr-9Ni in the range of 723-823 K. In: Oxidation of Metals. 1991 ; Vol. 36, No. 1-2. pp. 143-156.
@article{77fb15a4a59a429a8bf7cba75b3cf288,
title = "Plasma nitriding of Fe-18Cr-9Ni in the range of 723-823 K",
abstract = "To clarify the mechanism of plasma nitriding, we examined the optical microstructure, the hardness, the precipitation, and the concentration of dissolved nitrogen in Fe-18Cr-9Ni nitrided using plasma in the range of 723-823 K. Compared with ammonia-gas nitriding, the features of plasma nitriding are the formation of small chromium-nitride precipitates (CrN), the absence of an externally nitrided layer, the high concentration of dissolved nitrogen, and the high hardness (HV=1200). The diffusion coefficient of nitrogen in the present alloy was determined using the growth rate of the internally nitrided layer, based on calculations used in internal oxidation. Plasma- and gas-nitriding were also compared with respect to the growth rate of the nitrided layer.",
keywords = "CrN precipitates, Fe-18Cr-9Ni, kinetics, nitrogen diffusion, plasma nitriding",
author = "H. Kuwahara and H. Matsuoka and J. Takada and S. Kikuchi and Y. Tomii and I. Tamura",
year = "1991",
month = "8",
doi = "10.1007/BF00938459",
language = "English",
volume = "36",
pages = "143--156",
journal = "Oxidation of Metals",
issn = "0030-770X",
publisher = "Springer New York",
number = "1-2",

}

TY - JOUR

T1 - Plasma nitriding of Fe-18Cr-9Ni in the range of 723-823 K

AU - Kuwahara, H.

AU - Matsuoka, H.

AU - Takada, J.

AU - Kikuchi, S.

AU - Tomii, Y.

AU - Tamura, I.

PY - 1991/8

Y1 - 1991/8

N2 - To clarify the mechanism of plasma nitriding, we examined the optical microstructure, the hardness, the precipitation, and the concentration of dissolved nitrogen in Fe-18Cr-9Ni nitrided using plasma in the range of 723-823 K. Compared with ammonia-gas nitriding, the features of plasma nitriding are the formation of small chromium-nitride precipitates (CrN), the absence of an externally nitrided layer, the high concentration of dissolved nitrogen, and the high hardness (HV=1200). The diffusion coefficient of nitrogen in the present alloy was determined using the growth rate of the internally nitrided layer, based on calculations used in internal oxidation. Plasma- and gas-nitriding were also compared with respect to the growth rate of the nitrided layer.

AB - To clarify the mechanism of plasma nitriding, we examined the optical microstructure, the hardness, the precipitation, and the concentration of dissolved nitrogen in Fe-18Cr-9Ni nitrided using plasma in the range of 723-823 K. Compared with ammonia-gas nitriding, the features of plasma nitriding are the formation of small chromium-nitride precipitates (CrN), the absence of an externally nitrided layer, the high concentration of dissolved nitrogen, and the high hardness (HV=1200). The diffusion coefficient of nitrogen in the present alloy was determined using the growth rate of the internally nitrided layer, based on calculations used in internal oxidation. Plasma- and gas-nitriding were also compared with respect to the growth rate of the nitrided layer.

KW - CrN precipitates

KW - Fe-18Cr-9Ni

KW - kinetics

KW - nitrogen diffusion

KW - plasma nitriding

UR - http://www.scopus.com/inward/record.url?scp=0026206503&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0026206503&partnerID=8YFLogxK

U2 - 10.1007/BF00938459

DO - 10.1007/BF00938459

M3 - Article

AN - SCOPUS:0026206503

VL - 36

SP - 143

EP - 156

JO - Oxidation of Metals

JF - Oxidation of Metals

SN - 0030-770X

IS - 1-2

ER -