ZA823472B - Method for the ionic nitriding of a piece of steel plastically deformed beforehand - Google Patents

Method for the ionic nitriding of a piece of steel plastically deformed beforehand

Info

Publication number
ZA823472B
ZA823472B ZA823472A ZA823472A ZA823472B ZA 823472 B ZA823472 B ZA 823472B ZA 823472 A ZA823472 A ZA 823472A ZA 823472 A ZA823472 A ZA 823472A ZA 823472 B ZA823472 B ZA 823472B
Authority
ZA
South Africa
Prior art keywords
degrees
ionic nitriding
pascal
steel
piece
Prior art date
Application number
ZA823472A
Inventor
Robert Leveque
Original Assignee
Creusot Loire
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Creusot Loire filed Critical Creusot Loire
Publication of ZA823472B publication Critical patent/ZA823472B/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/02—Pretreatment of the material to be coated
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/36—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases using ionised gases, e.g. ionitriding
    • C23C8/38—Treatment of ferrous surfaces

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Physical Vapour Deposition (AREA)
  • Heat Treatment Of Steel (AREA)
  • Materials For Medical Uses (AREA)
  • Forging (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Laminated Bodies (AREA)
  • Investigating And Analyzing Materials By Characteristic Methods (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Catalysts (AREA)

Abstract

1. A method for the ionic nitriding of pieces of steel of any type, which comprises the following four stages in succession : a) a prior cold-working operation on the piece, the final degree of cold-working of which is between 10% and 40% ; b) a first ionic nitriding sequence with a duration of between one hour and 10 hours, carried out at a temperature t1 of between 450 degrees and 520 degrees, in a gaseous mixture consisting of nitrogen and hydrogen, which is such that the nitrogen partial pressure p1 is between 10 and 35 Pascal and such that the total gas pressure is between 200 and 650 Pascal ; c) a second ionic nitriding sequence the duration of which is between 40 and 70 hours, carried out at a temperature t2 of between 500 degrees and 580 degrees C and at least 10 degrees C and at most 50 degrees C above t1 in a gaseous mixture consisting of nitrogen and hydrogen, which is such that the nitrogen partial pressure p2 is between 60 and 80 Pascal, and that the total gas pressure remains between 200 and 650 Pascal ; and d) a final cooling in vacuo.
ZA823472A 1981-05-21 1982-05-19 Method for the ionic nitriding of a piece of steel plastically deformed beforehand ZA823472B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8110129A FR2506339A1 (en) 1981-05-21 1981-05-21 METHOD FOR THE ION NITRURATION OF A PLASTICALLY PREFORMED DEFORMED STEEL PART

Publications (1)

Publication Number Publication Date
ZA823472B true ZA823472B (en) 1983-03-30

Family

ID=9258728

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA823472A ZA823472B (en) 1981-05-21 1982-05-19 Method for the ionic nitriding of a piece of steel plastically deformed beforehand

Country Status (9)

Country Link
EP (1) EP0067098B1 (en)
AT (1) ATE16293T1 (en)
DE (1) DE3267120D1 (en)
DK (1) DK157691C (en)
ES (1) ES512331A0 (en)
FR (1) FR2506339A1 (en)
GR (1) GR75839B (en)
PT (1) PT74775B (en)
ZA (1) ZA823472B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8619436D0 (en) * 1986-08-08 1986-09-17 Verdict Ion Technology Ltd Tooling
DE4429943C1 (en) * 1994-08-24 1996-02-22 Dornier Gmbh Lindauer Drop wire surface hardening
DE102006025008B4 (en) 2006-05-30 2022-09-15 Schaeffler Technologies AG & Co. KG Process for hardening running surfaces of roller bearing components
DE102008060161B4 (en) * 2008-12-02 2012-07-19 Benteler Automobiltechnik Gmbh Method for producing a suspension component with increased fatigue strength and chassis component
LU92514B1 (en) * 2014-08-08 2016-02-09 Plasma Metal S A SURFACE TREATMENT PROCESS OF A STAINLESS STEEL PART
CN105695922A (en) * 2014-11-25 2016-06-22 上海新力动力设备研究所 Surface glow ion nitriding method of 30Cr3SiNiMoVA steel

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR86012E (en) * 1963-12-11 1965-11-26 Berliet Automobiles friction elements particularly resistant to abrasion wear
JPS5458636A (en) * 1977-10-20 1979-05-11 Kawasaki Heavy Ind Ltd Ion nitriding method
JPS5458637A (en) * 1977-10-20 1979-05-11 Kawasaki Heavy Ind Ltd Ion nitriding method
JPS5514839A (en) * 1978-07-14 1980-02-01 Kawasaki Heavy Ind Ltd Treating method for ion nitriding
FR2446326A1 (en) * 1979-01-10 1980-08-08 Creusot Loire IMPROVEMENT IN ION NITRURATION OF ELONGATED HOLLOW BODIES, IN STEEL

Also Published As

Publication number Publication date
ATE16293T1 (en) 1985-11-15
ES8304613A1 (en) 1983-03-01
EP0067098B1 (en) 1985-10-30
PT74775B (en) 1983-11-08
PT74775A (en) 1982-05-01
ES512331A0 (en) 1983-03-01
EP0067098A1 (en) 1982-12-15
FR2506339A1 (en) 1982-11-26
DK157691B (en) 1990-02-05
DE3267120D1 (en) 1985-12-05
DK157691C (en) 1990-07-02
FR2506339B1 (en) 1983-12-23
GR75839B (en) 1984-08-02
DK228982A (en) 1982-11-22

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