GB1129966A - Surface diffusion processes using electrical glow discharges - Google Patents

Surface diffusion processes using electrical glow discharges

Info

Publication number
GB1129966A
GB1129966A GB1890565A GB1890565A GB1129966A GB 1129966 A GB1129966 A GB 1129966A GB 1890565 A GB1890565 A GB 1890565A GB 1890565 A GB1890565 A GB 1890565A GB 1129966 A GB1129966 A GB 1129966A
Authority
GB
United Kingdom
Prior art keywords
gas
reducing gas
treatment
carburising
ions
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB1890565A
Inventor
Donald Frederick Tranter
Brian Arthur Ariss
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZF International UK Ltd
Original Assignee
Lucas Industries Ltd
Joseph Lucas Industries Ltd
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 Lucas Industries Ltd, Joseph Lucas Industries Ltd filed Critical Lucas Industries Ltd
Priority to GB1890565A priority Critical patent/GB1129966A/en
Publication of GB1129966A publication Critical patent/GB1129966A/en
Expired legal-status Critical Current

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
    • C23C8/06—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

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)

Abstract

1,129,966. Gas carburising or nitriding. JOSEPH LUCAS (INDUSTRIES) Ltd. April 1,1966 [May 5, 1965], No.18905/65. Heading C7U. A metal workpiece is cleaned and heated by making it the cathode for a glow discharge in a chamber containing a reducing gas at low pressure, after which the reducing gas is partially replaced by a treating gas the ions of which are heavier than those of the reducing gas. The glow discharge is maintained by rectified alternating current until the reducing gas has been partially replaced by the treatment gas, after which it is maintained by direct current such that the mean kinetic energy imparted to the ions by the alternating current at the instant when the treatment gas is introduced exceeds the energy imported by the direct current. The reducing gas may be hydrogen and the treatment gas nitrogen or a carburising gas.
GB1890565A 1965-05-05 1965-05-05 Surface diffusion processes using electrical glow discharges Expired GB1129966A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1890565A GB1129966A (en) 1965-05-05 1965-05-05 Surface diffusion processes using electrical glow discharges

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1890565A GB1129966A (en) 1965-05-05 1965-05-05 Surface diffusion processes using electrical glow discharges

Publications (1)

Publication Number Publication Date
GB1129966A true GB1129966A (en) 1968-10-09

Family

ID=10120435

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1890565A Expired GB1129966A (en) 1965-05-05 1965-05-05 Surface diffusion processes using electrical glow discharges

Country Status (1)

Country Link
GB (1) GB1129966A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2379615A1 (en) * 1977-02-08 1978-09-01 Vide & Traitement Sa THERMOCHEMICAL TREATMENT PROCESS OF METALS
EP0158271A2 (en) * 1984-04-05 1985-10-16 Kabushiki Kaisha Toyota Chuo Kenkyusho Process for ion nitriding aluminum or aluminum alloys

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2379615A1 (en) * 1977-02-08 1978-09-01 Vide & Traitement Sa THERMOCHEMICAL TREATMENT PROCESS OF METALS
EP0158271A2 (en) * 1984-04-05 1985-10-16 Kabushiki Kaisha Toyota Chuo Kenkyusho Process for ion nitriding aluminum or aluminum alloys
EP0158271A3 (en) * 1984-04-05 1986-04-09 Kabushiki Kaisha Toyota Chuo Kenkyusho Process for ion nitriding aluminum or aluminum alloys

Similar Documents

Publication Publication Date Title
US2946708A (en) Nitriding with electric glow discharge
SU1373326A3 (en) Method of nitriding steel articles in glow discharge
GB2272995B (en) Method for making or treating a semiconductor
GB1446500A (en) Corona discharge method of depleting alkali metal ions from a glass surface region
GB1255321A (en) Surface diffusion processes using electrical glow discharges
GB785878A (en) A method of carrying out industrial processes in a glow discharge
ES466772A1 (en) Thermochemical treatment system and process
GB1129966A (en) Surface diffusion processes using electrical glow discharges
US3650930A (en) Glow discharge masking process
JPS55125267A (en) Surface treating method of improving abrasion resistance and corrosion resistance of iron and steel
FR2262134A1 (en) Electrolytic treatment of stainless steel surfaces - with an acid phosphating solution contg. a chelating cpd.
US3616383A (en) Method of ionitriding objects made of high-alloyed particularly stainless iron and steel
JPS572585A (en) Forming method for aluminum electrode
GB1155864A (en) A Method For Producing Wear-Resistant Surfaces On Spheroidal Graphite Iron
RU2611003C1 (en) Method of ion nitration of titanium alloys
JPS54155156A (en) Vacuum brazing apparatus
US1975064A (en) Treatment of ferrous metals
GB1241967A (en) Method of and device for ionitriding objects made of high-alloyed, particularly stainless, iron and steel
SU1095673A1 (en) Method of nitriding metal articles
FR2403645A2 (en) Furnace for thermochemical metal treatment - ensures ion bombardment by anodes and cathodes without arc discharge
GB744753A (en) Improvements in or relating to gun-barrels
JPH021907B2 (en)
JPS5739167A (en) Glow discharge heat treatment apparatus
Bulat et al. Structural and Phase Transformations in the Near-Surface Layers of Steel Under the Action of an Electric Arc Discharge in Vacuum
GB1170057A (en) Method of Processing Steel Sheet or Strip prior to Surface Treatment