GB338315A - Method of heat treating nitrogenised alloy steel articles - Google Patents
Method of heat treating nitrogenised alloy steel articlesInfo
- Publication number
- GB338315A GB338315A GB3175129A GB3175129A GB338315A GB 338315 A GB338315 A GB 338315A GB 3175129 A GB3175129 A GB 3175129A GB 3175129 A GB3175129 A GB 3175129A GB 338315 A GB338315 A GB 338315A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- alloy steel
- nitrogenised
- heat treating
- steel articles
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/78—Combined heat-treatments not provided for above
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Soft Magnetic Materials (AREA)
Abstract
338,315. Sergeson, R. Oct. 18, 1929. Drawings to Specification. Annealing; cementation.-Alloy steel articles which have been nitrogenized at about 460-560‹ C. for about 5-100 hours are reheated to a temperature between 590‹ C. and the lower critical point of the core material, preferably about 650‹ C., with a view to decreasing the brittleness and increasing the toughness of the case. An alloy steel containing 0.32 per cent of carbon, 0.56 per cent of manganese, 0.18 per cent of silicon, 1.43 per cent of chromium, 0.18 per cent of molybdenum, and 1.3 per cent of aluminium is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3175129A GB338315A (en) | 1929-10-18 | 1929-10-18 | Method of heat treating nitrogenised alloy steel articles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3175129A GB338315A (en) | 1929-10-18 | 1929-10-18 | Method of heat treating nitrogenised alloy steel articles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB338315A true GB338315A (en) | 1930-11-20 |
Family
ID=10327840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3175129A Expired GB338315A (en) | 1929-10-18 | 1929-10-18 | Method of heat treating nitrogenised alloy steel articles |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB338315A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2138028A (en) * | 1983-04-14 | 1984-10-17 | Lucas Ind Plc | Corrosion resistant steel components and method of manufacture thereof |
-
1929
- 1929-10-18 GB GB3175129A patent/GB338315A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2138028A (en) * | 1983-04-14 | 1984-10-17 | Lucas Ind Plc | Corrosion resistant steel components and method of manufacture thereof |
| US4563223A (en) * | 1983-04-14 | 1986-01-07 | Lucas Industries | Corrosion resistant steel components and method of manufacture thereof |
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