GB851346A - Process of nitriding hardenable steel - Google Patents
Process of nitriding hardenable steelInfo
- Publication number
- GB851346A GB851346A GB20789/59A GB2078959A GB851346A GB 851346 A GB851346 A GB 851346A GB 20789/59 A GB20789/59 A GB 20789/59A GB 2078959 A GB2078959 A GB 2078959A GB 851346 A GB851346 A GB 851346A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nitriding
- hardenable steel
- objects
- austenizing
- cooling
- 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
Links
- 238000005121 nitriding Methods 0.000 title abstract 6
- 229910000831 Steel Inorganic materials 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 239000010959 steel Substances 0.000 title abstract 2
- 238000001816 cooling Methods 0.000 abstract 2
- 229910001563 bainite Inorganic materials 0.000 abstract 1
- 229910000734 martensite Inorganic materials 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
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
- C23C8/80—After-treatment
-
- 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
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)
- Heat Treatment Of Articles (AREA)
Abstract
A process for nitriding steel objects comprises austenizing the objects, cooling them directly to the nitriding temperature, and then nitriding. The cooling may be carried out by an inert or non-oxidizing gas and the austenizing and nitriding may be performed in a glow-discharge furnace. After nitriding the objects may be cooled to produce a martensitic or bainite structure which may then be tempered.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE851346X | 1958-07-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB851346A true GB851346A (en) | 1960-10-12 |
Family
ID=20362654
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB20789/59A Expired GB851346A (en) | 1958-07-22 | 1959-06-17 | Process of nitriding hardenable steel |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE1230645B (en) |
GB (1) | GB851346A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2148941A (en) * | 1983-09-15 | 1985-06-05 | Welsh Nat School Med | Improvements in and relating to steel castings |
GB2214196A (en) * | 1988-01-14 | 1989-08-31 | Skf Gmbh | Case-hardening |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8310102D0 (en) * | 1983-04-14 | 1983-05-18 | Lucas Ind Plc | Corrosion resistant steel components |
CH682492A5 (en) * | 1990-09-10 | 1993-09-30 | Biennaform Walzprofil Ag | Prodn. of steel profiles esp. for ski edges - involves nitriding of steel followed by cold working to produce austenitic steel having high strength, toughened and corrosion resistance |
DE102017117483A1 (en) * | 2017-08-02 | 2019-02-07 | Schaeffler Technologies AG & Co. KG | Method for producing a roller bearing component made of steel |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE638536C (en) * | 1933-07-25 | 1936-11-17 | Thos Firth & John Brown Ltd | Nitriding steel |
US2472320A (en) * | 1941-02-05 | 1949-06-07 | Ford Motor Co | Method of heat-treating steel |
CH262349A (en) * | 1944-05-04 | 1949-06-30 | Oliver Homerberg Victor | Process for the preparation of nitrided graphitic steel products and product obtained by this process. |
GB748398A (en) * | 1952-09-08 | 1956-05-02 | Erich Fitzer | Improvements in and relating to the surface treatment of ferrous metals |
-
1959
- 1959-06-03 DE DEA32170A patent/DE1230645B/en active Pending
- 1959-06-17 GB GB20789/59A patent/GB851346A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2148941A (en) * | 1983-09-15 | 1985-06-05 | Welsh Nat School Med | Improvements in and relating to steel castings |
GB2214196A (en) * | 1988-01-14 | 1989-08-31 | Skf Gmbh | Case-hardening |
GB2214196B (en) * | 1988-01-14 | 1992-06-03 | Skf Gmbh | Process for the case hardening of rolling-bearing elements of low-alloy steel containing nickel |
Also Published As
Publication number | Publication date |
---|---|
DE1230645B (en) | 1966-12-15 |
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