GB763554A - Process for the treatment of chromized articles - Google Patents
Process for the treatment of chromized articlesInfo
- 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
Links
- 238000000034 method Methods 0.000 title abstract 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 2
- 229910000831 Steel Inorganic materials 0.000 abstract 2
- 229910052799 carbon Inorganic materials 0.000 abstract 2
- 238000005254 chromizing Methods 0.000 abstract 2
- 239000007789 gas Substances 0.000 abstract 2
- 239000010959 steel Substances 0.000 abstract 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 230000000704 physical effect Effects 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
- 238000010791 quenching Methods 0.000 abstract 1
- 230000000171 quenching effect Effects 0.000 abstract 1
- 238000003303 reheating Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- 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.
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)
| 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 |
-
1954
- 1954-11-11 GB GB32731/54A patent/GB763554A/en not_active Expired
Cited By (3)
| 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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