CO2018006462A2 - Hot rolled steels containing metastable austenite - Google Patents
Hot rolled steels containing metastable austeniteInfo
- Publication number
- CO2018006462A2 CO2018006462A2 CONC2018/0006462A CO2018006462A CO2018006462A2 CO 2018006462 A2 CO2018006462 A2 CO 2018006462A2 CO 2018006462 A CO2018006462 A CO 2018006462A CO 2018006462 A2 CO2018006462 A2 CO 2018006462A2
- Authority
- CO
- Colombia
- Prior art keywords
- hot rolled
- steel
- mechanical properties
- same amount
- hot
- Prior art date
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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0231—Warm rolling
-
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
-
- 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/001—Austenite
-
- 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/008—Martensite
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 Sheet Steel (AREA)
- Heat Treatment Of Steel (AREA)
- Metal Rolling (AREA)
Abstract
Calentar un acero metaestable antes o durante el enrollado en frío suprime la transformación de austenita en martensita, resultando en cargas de molino menores y mayores cantidades de reducción a cargas similares. El acero enrollado en caliente tiene propiedades mecánicas mejoradas cuando se compara con acero reducido la misma cantidad por enrollado en frío. El enrollado en caliente seguido por recocido posterior también resulta en mejores propiedades mecánicas que las logradas en el material enrollado en frío la misma cantidad y luego recocido. El acero metaestable que se ha enrollado en caliente, con posterior enrollado a temperatura ambiente (enrollado en frío), también muestra mejora en resistencia y ductilidad.Heating a metastable steel before or during cold rolling suppresses the transformation of austenite into martensite, resulting in smaller mill loads and greater amounts of reduction at similar loads. Hot rolled steel has improved mechanical properties when compared with reduced steel the same amount by cold rolling. Hot rolling followed by subsequent annealing also results in better mechanical properties than those achieved in the cold rolled material the same amount and then annealing. The metastable steel that has been hot rolled, with subsequent winding at room temperature (cold rolled), also shows improvement in strength and ductility.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201662278567P | 2016-01-14 | 2016-01-14 | |
| US201662407001P | 2016-10-12 | 2016-10-12 | |
| PCT/US2017/013717 WO2017124081A1 (en) | 2016-01-14 | 2017-01-17 | Warm rolling of steels containing metastable austenite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CO2018006462A2 true CO2018006462A2 (en) | 2018-07-10 |
Family
ID=58094491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CONC2018/0006462A CO2018006462A2 (en) | 2016-01-14 | 2018-06-22 | Hot rolled steels containing metastable austenite |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US20170204493A1 (en) |
| EP (1) | EP3402906A1 (en) |
| JP (1) | JP6830493B2 (en) |
| KR (1) | KR102249721B1 (en) |
| CN (1) | CN108431242A (en) |
| AU (1) | AU2017208084A1 (en) |
| BR (1) | BR112018013818A2 (en) |
| CA (1) | CA3009514C (en) |
| CO (1) | CO2018006462A2 (en) |
| MX (1) | MX2018008714A (en) |
| PH (1) | PH12018501374A1 (en) |
| TW (2) | TWI623622B (en) |
| WO (1) | WO2017124081A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA3089283C (en) | 2018-03-13 | 2023-02-14 | Ak Steel Properties, Inc. | Reduction at elevated temperature of coated steels containing metastable austenite |
| CN113088652B (en) * | 2021-03-31 | 2024-08-02 | 长春工业大学 | Preparation method of dispersion-strengthened high-stability medical high-nitrogen nickel-free austenitic stainless steel |
| CN114273426B (en) * | 2022-01-10 | 2024-04-16 | 南京理工大学 | Method for preparing high-strength high-plasticity 316L stainless steel by high-strain warm rolling |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3599320A (en) * | 1967-12-26 | 1971-08-17 | United States Steel Corp | Metastable austenitic stainless steel |
| JPS6092457A (en) * | 1983-10-24 | 1985-05-24 | Daido Steel Co Ltd | High strength stainless steel |
| JPH0768584B2 (en) * | 1986-06-09 | 1995-07-26 | 日新製鋼株式会社 | Manufacturing method of stainless steel for springs having excellent spring characteristics |
| JPH076858B2 (en) * | 1987-11-20 | 1995-01-30 | 富士写真フイルム株式会社 | Pressure converter |
| JPH0768584A (en) | 1993-09-07 | 1995-03-14 | Asahi Chem Ind Co Ltd | Manufacture of molding using crystalline vinyliden chloride resin particle |
| TWI271438B (en) * | 2003-05-09 | 2007-01-21 | Nippon Mining Co | Metastable austenite series stainless steel strap with excellent fatigue resistance |
| US9267193B2 (en) * | 2008-11-05 | 2016-02-23 | Honda Motor Co., Ltd | High-strength steel sheet and the method for production therefor |
| TWI415954B (en) * | 2010-10-27 | 2013-11-21 | China Steel Corp | High strength steel and its manufacturing method |
| US9587287B2 (en) * | 2011-03-31 | 2017-03-07 | Nippon Steel and Sumitomo Metal Corporation | Bainite-containing-type high-strength hot-rolled steel sheet having excellent isotropic workability and manufacturing method thereof |
| JP5856002B2 (en) * | 2011-05-12 | 2016-02-09 | Ｊｆｅスチール株式会社 | Collision energy absorbing member for automobiles excellent in impact energy absorbing ability and method for manufacturing the same |
| BR112014007498B1 (en) * | 2011-09-30 | 2019-04-30 | Nippon Steel & Sumitomo Metal Corporation | HIGH RESISTANCE HOT GALVANIZED STEEL SHEET AND SAME PRODUCTION METHOD |
-
2017
- 2017-01-16 TW TW106101455A patent/TWI623622B/en not_active IP Right Cessation
- 2017-01-16 TW TW107112127A patent/TW201825688A/en unknown
- 2017-01-17 MX MX2018008714A patent/MX2018008714A/en unknown
- 2017-01-17 BR BR112018013818A patent/BR112018013818A2/en not_active IP Right Cessation
- 2017-01-17 EP EP17706330.2A patent/EP3402906A1/en active Pending
- 2017-01-17 JP JP2018536491A patent/JP6830493B2/en active Active
- 2017-01-17 CN CN201780005708.8A patent/CN108431242A/en active Pending
- 2017-01-17 WO PCT/US2017/013717 patent/WO2017124081A1/en active Application Filing
- 2017-01-17 CA CA3009514A patent/CA3009514C/en active Active
- 2017-01-17 US US15/407,922 patent/US20170204493A1/en not_active Abandoned
- 2017-01-17 KR KR1020187020518A patent/KR102249721B1/en active IP Right Grant
- 2017-01-17 AU AU2017208084A patent/AU2017208084A1/en not_active Abandoned
-
2018
- 2018-06-22 CO CONC2018/0006462A patent/CO2018006462A2/en unknown
- 2018-06-26 PH PH12018501374A patent/PH12018501374A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BR112018013818A2 (en) | 2018-12-11 |
| KR20180095662A (en) | 2018-08-27 |
| CN108431242A (en) | 2018-08-21 |
| TW201730348A (en) | 2017-09-01 |
| CA3009514C (en) | 2021-03-16 |
| US20170204493A1 (en) | 2017-07-20 |
| JP6830493B2 (en) | 2021-02-17 |
| KR102249721B1 (en) | 2021-05-10 |
| WO2017124081A1 (en) | 2017-07-20 |
| AU2017208084A1 (en) | 2018-07-05 |
| MX2018008714A (en) | 2018-09-21 |
| CA3009514A1 (en) | 2017-07-20 |
| PH12018501374A1 (en) | 2019-02-11 |
| TWI623622B (en) | 2018-05-11 |
| JP2019504213A (en) | 2019-02-14 |
| EP3402906A1 (en) | 2018-11-21 |
| TW201825688A (en) | 2018-07-16 |
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