GB243613A - Improvements in the manufacture of articles hardened in their marginal layers by nitrogenisation - Google Patents

Improvements in the manufacture of articles hardened in their marginal layers by nitrogenisation

Info

Publication number
GB243613A
GB243613A GB1284425A GB1284425A GB243613A GB 243613 A GB243613 A GB 243613A GB 1284425 A GB1284425 A GB 1284425A GB 1284425 A GB1284425 A GB 1284425A GB 243613 A GB243613 A GB 243613A
Authority
GB
United Kingdom
Prior art keywords
per cent
nitrogenisation
manufacture
marginal layers
hardened
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
GB1284425A
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.)
Krupp Stahl AG
Fried Krupp AG
Original Assignee
Krupp Stahl AG
Fried Krupp AG
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 Krupp Stahl AG, Fried Krupp AG filed Critical Krupp Stahl AG
Priority to GB1284425A priority Critical patent/GB243613A/en
Publication of GB243613A publication Critical patent/GB243613A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)

Abstract

243,613. Brewer, G., (Krupp Akt.-Ges., F.). May 16, 1925. Alloys.-Articles hardened in their marginal layers by nitrogenization, for example by the method described in Specification 174,580, are made from steel alloys containing 0.5-2 per cent of aluminium, up to 0.6 per cent of carbon, and a total of 0.5-4 per cent of one or more of the elements silicon, manganese, nickel, chromium, molybdenum, tungsten, vanadium, titanium, and zirconium. An example contains 0.5-2 per cent nf aluminium and 0.5-3 per cent of chromium. Specifications 4644/91, 27754/97, 27755/97, 8080/00, 8081/00, 2273/04, 11974/06, and 3445/13 are also referred to.
GB1284425A 1925-05-16 1925-05-16 Improvements in the manufacture of articles hardened in their marginal layers by nitrogenisation Expired GB243613A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1284425A GB243613A (en) 1925-05-16 1925-05-16 Improvements in the manufacture of articles hardened in their marginal layers by nitrogenisation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1284425A GB243613A (en) 1925-05-16 1925-05-16 Improvements in the manufacture of articles hardened in their marginal layers by nitrogenisation

Publications (1)

Publication Number Publication Date
GB243613A true GB243613A (en) 1925-12-03

Family

ID=10012156

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1284425A Expired GB243613A (en) 1925-05-16 1925-05-16 Improvements in the manufacture of articles hardened in their marginal layers by nitrogenisation

Country Status (1)

Country Link
GB (1) GB243613A (en)

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