GB763554A - Process for the treatment of chromized articles - Google Patents

Process for the treatment of chromized articles

Info

Publication number
GB763554A
GB763554A GB32731/54A GB3273154A GB763554A GB 763554 A GB763554 A GB 763554A GB 32731/54 A GB32731/54 A GB 32731/54A GB 3273154 A GB3273154 A GB 3273154A GB 763554 A GB763554 A GB 763554A
Authority
GB
United Kingdom
Prior art keywords
articles
chromized
chromizing
carbon
steel
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
GB32731/54A
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.)
Deutsche Edelstahlwerke AG
Original Assignee
Deutsche Edelstahlwerke 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 Deutsche Edelstahlwerke AG filed Critical Deutsche Edelstahlwerke AG
Publication of GB763554A publication Critical patent/GB763554A/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
    • C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
    • C23C10/60—After-treatment

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

A process for improving the physical properties of chromized steel articles, the steel having a carbon content not exceeding 0.1 per cent or whose carbon is bound in a stable manner by carbide forming elements, e.g. Ti, Ta and/or Nb. and having a substantially carbon-free chromized surface, comprises cooling the articles rapidly from temperature above 900 DEG C. after chromizing. The articles may be cooled directly from the chromizing process by quenching in oil or water or they may be cooled to room temperature, reheated to 950 DEG C. and quenched. The reheating may take place in a protective gas atmosphere, e.g. incompletely burned illuminating gas, which may contain sufficient oxygen to produce a surface of green oxide of chromium.
GB32731/54A 1953-11-12 1954-11-11 Process for the treatment of chromized articles Expired GB763554A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE763554X 1953-11-12

Publications (1)

Publication Number Publication Date
GB763554A true GB763554A (en) 1956-12-12

Family

ID=6671173

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32731/54A Expired GB763554A (en) 1953-11-12 1954-11-11 Process for the treatment of chromized articles

Country Status (1)

Country Link
GB (1) GB763554A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2921877A (en) * 1958-03-13 1960-01-19 David Craven Process of chromizing air hardening tool steel
DE1234478B (en) * 1959-12-15 1967-02-16 Sedis Transmissions Mec Wear-resistant steel parts for articulated connections of power transmission chains and processes for their production
US4686342A (en) * 1985-08-01 1987-08-11 Collier John D Process for making wire mesh screens

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2921877A (en) * 1958-03-13 1960-01-19 David Craven Process of chromizing air hardening tool steel
DE1234478B (en) * 1959-12-15 1967-02-16 Sedis Transmissions Mec Wear-resistant steel parts for articulated connections of power transmission chains and processes for their production
US4686342A (en) * 1985-08-01 1987-08-11 Collier John D Process for making wire mesh screens

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