GB1125328A - Heat treatment of austenitic stainless steels - Google Patents
Heat treatment of austenitic stainless steelsInfo
- Publication number
- GB1125328A GB1125328A GB50194/66A GB5019466A GB1125328A GB 1125328 A GB1125328 A GB 1125328A GB 50194/66 A GB50194/66 A GB 50194/66A GB 5019466 A GB5019466 A GB 5019466A GB 1125328 A GB1125328 A GB 1125328A
- Authority
- GB
- United Kingdom
- Prior art keywords
- steels
- austenitic stainless
- stainless steels
- heat treatment
- nov
- 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
- 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
-
- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
- Heat Treatment Of Steel (AREA)
- Powder Metallurgy (AREA)
Abstract
1,125,328. Heat-treating stainless steel. GENERAL ELECTRIC CO. Nov. 9, 1966 [Nov. 30, 1965|, No.50194/66. Heading C7A. Austenitic stainless steels are heated in a vacuum or inert atmosphere to a temperature above 1050‹ C, but preferably not exceeding 1300‹ C, for 2 to 10 hours, and are then cooled rapidly to room temperature, as by water quenching. The steels are then reheated to 800‹ - 900‹ C for not less than 1 hour, preferably for several hours, again in a vacuum or an inert atmosphere, after which they are cooled rapidly to room temperature. Corrosion resistance of the steels below 500‹ C is claimed to be improved by the treatment, which produces a microstructure of discrete chromium carbide particles at the grain boundaries.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US51876165A | 1965-11-30 | 1965-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1125328A true GB1125328A (en) | 1968-08-28 |
Family
ID=24065391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB50194/66A Expired GB1125328A (en) | 1965-11-30 | 1966-11-09 | Heat treatment of austenitic stainless steels |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE689967A (en) |
| CH (1) | CH485858A (en) |
| ES (1) | ES333903A1 (en) |
| GB (1) | GB1125328A (en) |
| NL (1) | NL6616591A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1387152A (en) * | 1971-02-15 | 1975-03-12 | Nissan Motor | Motor vehicle safety apparatus |
| FR2523772A1 (en) * | 1982-03-22 | 1983-09-23 | Demoulin Jaroslav | Compact antenna for TV reception - comprises rectangular frame with frame reflector, both tuned to operating band by their dimensions |
-
1966
- 1966-11-09 GB GB50194/66A patent/GB1125328A/en not_active Expired
- 1966-11-21 BE BE689967D patent/BE689967A/xx unknown
- 1966-11-24 NL NL6616591A patent/NL6616591A/xx unknown
- 1966-11-29 ES ES0333903A patent/ES333903A1/en not_active Expired
- 1966-11-30 CH CH1720266A patent/CH485858A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CH485858A (en) | 1970-02-15 |
| ES333903A1 (en) | 1967-11-01 |
| NL6616591A (en) | 1967-05-31 |
| BE689967A (en) | 1967-05-02 |
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