GB877675A - Improvements in and relating to methods of nitriding articles made from a metal alloy - Google Patents

Improvements in and relating to methods of nitriding articles made from a metal alloy

Info

Publication number
GB877675A
GB877675A GB6876/58A GB687658A GB877675A GB 877675 A GB877675 A GB 877675A GB 6876/58 A GB6876/58 A GB 6876/58A GB 687658 A GB687658 A GB 687658A GB 877675 A GB877675 A GB 877675A
Authority
GB
United Kingdom
Prior art keywords
articles made
relating
methods
metal alloy
nitriding
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
GB6876/58A
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.)
Elektrophysikalische Anstalt Bernhard Berghaus
Original Assignee
Elektrophysikalische Anstalt Bernhard Berghaus
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 Elektrophysikalische Anstalt Bernhard Berghaus filed Critical Elektrophysikalische Anstalt Bernhard Berghaus
Publication of GB877675A publication Critical patent/GB877675A/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

Articles made from an alloy containing at least at the surface thereof, less than 85% of iron are nitrided by subjecting them to glow discharge in a nitrogenous atmosphere. The atmosphere may be ammonia in which 50% of the ammonia may be replaced by either hydrogen or nitrogen. Before the nitriding treatment, which may be carried out at a temperature above 500 DEG C., the articles may be cleaned by treatment in a glow discharge in an atmosphere of hydrogen. Specifications 759,694, 805,163, 805,164 and 805,165 are referred to.
GB6876/58A 1957-03-05 1958-03-04 Improvements in and relating to methods of nitriding articles made from a metal alloy Expired GB877675A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH877675X 1957-03-05

Publications (1)

Publication Number Publication Date
GB877675A true GB877675A (en) 1961-09-20

Family

ID=4544548

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6876/58A Expired GB877675A (en) 1957-03-05 1958-03-04 Improvements in and relating to methods of nitriding articles made from a metal alloy

Country Status (1)

Country Link
GB (1) GB877675A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0304047A1 (en) * 1987-08-20 1989-02-22 Renato Della Torre Process and means for making metal inking rolls, particularly for flexographic printing, with highly hardened superficial engraved layer, and rolls obtained with such process and means
EP1507023A1 (en) * 2003-08-14 2005-02-16 Voith Paper Patent GmbH Alloy for making wear-resistant tools.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0304047A1 (en) * 1987-08-20 1989-02-22 Renato Della Torre Process and means for making metal inking rolls, particularly for flexographic printing, with highly hardened superficial engraved layer, and rolls obtained with such process and means
WO1989001414A1 (en) * 1987-08-20 1989-02-23 Renato Della Torre Process and means for making metal inking rolls
EP1507023A1 (en) * 2003-08-14 2005-02-16 Voith Paper Patent GmbH Alloy for making wear-resistant tools.

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