JPS5550424A - Manufacture of large-sized maraging steel product - Google Patents
Manufacture of large-sized maraging steel productInfo
- Publication number
- JPS5550424A JPS5550424A JP12429078A JP12429078A JPS5550424A JP S5550424 A JPS5550424 A JP S5550424A JP 12429078 A JP12429078 A JP 12429078A JP 12429078 A JP12429078 A JP 12429078A JP S5550424 A JPS5550424 A JP S5550424A
- Authority
- JP
- Japan
- Prior art keywords
- martensite
- austenite
- product
- maraging steel
- steel product
- 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.)
- Pending
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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/001—Heat treatment of ferrous alloys containing Ni
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
PURPOSE:To enhance the toughness, ductility and strength of a largesized maraging steel product by subjecting the product to soln. heat treatment and heat treatment in austenite and martensite two-phase zone to form a very fine martensite structure. CONSTITUTION:An 18% Ni maraging steel product is soln.-heat-treated by heating to 850-950 deg.C, cooled to form a martensite structure, and heated to the temp. zone of 550-750 deg.C in which austenite and martensite two phases coexist. The product is then cooled to form an austenite and martensite two-phase structure, which is heated again to the austenite temp. zone of 750-900 deg.C and held for 0.5hr to perform secondary soln. heat treatment. By this treatment the austenite grains are made fine, and they are transformed into martensite by cooling. Thus, a very fine martensite single structure is formed, and the toughness, ductility and strength of the product are improved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12429078A JPS5550424A (en) | 1978-10-09 | 1978-10-09 | Manufacture of large-sized maraging steel product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12429078A JPS5550424A (en) | 1978-10-09 | 1978-10-09 | Manufacture of large-sized maraging steel product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5550424A true JPS5550424A (en) | 1980-04-12 |
Family
ID=14881672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12429078A Pending JPS5550424A (en) | 1978-10-09 | 1978-10-09 | Manufacture of large-sized maraging steel product |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5550424A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6298829A (en) * | 1985-08-02 | 1987-05-08 | リベラ・テレコム・リミテッド | Synthesizer |
| US6858099B2 (en) | 2001-04-06 | 2005-02-22 | Honda Giken Kogyo Kabushiki Kaisha | Steel material production method |
-
1978
- 1978-10-09 JP JP12429078A patent/JPS5550424A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6298829A (en) * | 1985-08-02 | 1987-05-08 | リベラ・テレコム・リミテッド | Synthesizer |
| US6858099B2 (en) | 2001-04-06 | 2005-02-22 | Honda Giken Kogyo Kabushiki Kaisha | Steel material production method |
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