EP2649214A2 - Procédé de fabrication d'un acier à haute teneur en manganèse présentant une résistance mécanique et une aptitude au formage élevées, et acier obtenu par le procédé - Google Patents
Procédé de fabrication d'un acier à haute teneur en manganèse présentant une résistance mécanique et une aptitude au formage élevées, et acier obtenu par le procédéInfo
- Publication number
- EP2649214A2 EP2649214A2 EP11820814.9A EP11820814A EP2649214A2 EP 2649214 A2 EP2649214 A2 EP 2649214A2 EP 11820814 A EP11820814 A EP 11820814A EP 2649214 A2 EP2649214 A2 EP 2649214A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- steel
- optionally
- annealing
- twip
- content
- 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.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 46
- 239000010959 steel Substances 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000008569 process Effects 0.000 title claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 239000011572 manganese Substances 0.000 title claims description 20
- 229910052748 manganese Inorganic materials 0.000 title claims description 8
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 title claims description 6
- 238000000137 annealing Methods 0.000 claims abstract description 20
- 239000000203 mixture Substances 0.000 claims abstract description 9
- 239000012535 impurity Substances 0.000 claims abstract description 6
- 239000000126 substance Substances 0.000 claims abstract description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 15
- 239000000956 alloy Substances 0.000 claims description 15
- 230000000694 effects Effects 0.000 claims description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 4
- 239000011777 magnesium Substances 0.000 claims description 4
- 229910052749 magnesium Inorganic materials 0.000 claims description 4
- 229910052725 zinc Inorganic materials 0.000 claims description 4
- 239000011701 zinc Substances 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 238000005097 cold rolling Methods 0.000 claims description 2
- 229910000937 TWIP steel Inorganic materials 0.000 abstract description 9
- 238000001953 recrystallisation Methods 0.000 abstract description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- 229910001566 austenite Inorganic materials 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 239000004411 aluminium Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000006641 stabilisation Effects 0.000 description 4
- 238000011105 stabilization Methods 0.000 description 4
- 238000009749 continuous casting Methods 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 229910000859 α-Fe Inorganic materials 0.000 description 3
- 229910001297 Zn alloy Inorganic materials 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910000734 martensite Inorganic materials 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 229910052702 rhenium Inorganic materials 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 229910000967 As alloy Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910001563 bainite Inorganic materials 0.000 description 1
- 238000005255 carburizing Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000035784 germination Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000002436 steel type Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
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
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- 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
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
-
- 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
-
- 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
- C21D6/005—Heat treatment of ferrous alloys containing Mn
-
- 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
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/0447—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the heat treatment
- C21D8/0473—Final recrystallisation annealing
-
- 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
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/561—Continuous furnaces for strip or wire with a controlled atmosphere or vacuum
-
- 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
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
-
- 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
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- 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
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- 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
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- 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
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
-
- 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
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
-
- 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
- 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
- C21D9/48—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals deep-drawing sheets
Definitions
- the present invention refers to the field of products made of high manganese content austenitic steel and with high mechanical resistance and high formabil- ity (steels named as TWIP, Twinning Induced Plasticity) .
- TWIP type steels constitute within high resistance steel field a unique family being characterized in that the same display peculiar mechanical properties.
- TWIP steels have austenitic structure with face-centered cubic lattice (FCC) along with a low stacking fault energy (SFE) promoting the activation of twinning deformation mechanisms (mechanically induced twinning) .
- FCC face-centered cubic lattice
- SFE stacking fault energy
- the atoms of solute interact with dislocations through two mechanisms:
- this TWIP steel type in particular in strip form, is particularly appreciated in the automotive field.
- the TWIP steel strips allow the manufacturing of complexly shaped automotive components in a relatively simple way and use thereof under conditions requiring high mechanical performances, in particular for parts involved in energy absorption and structure reinforcing.
- compositions for single alloy elements or combinations of alloy elements, independently from each other are:
- the proposed process comprises also the further operating step to produce a metallic coating on the hot obtained strip using a zinc based alloy containing magnesium and aluminium.
- the steel according to the invention can be used for the manufacturing of complexly shaped components to be employed for energy absorption, structure reinforcing and in general terms for automotive applications .
- Austenitic TWIP steel according to the invention optionally coated with zinc alloy, can be used in form of strip, sheet, bar, billet, pipe.
- SFE stacking fault energy
- manganese plays a determining role in the stabilization of the austenitic phase. Compositionally the range thereof is 16-18% according to the present inven ⁇ tion. In correspondence of this interval of Mn percentages the maximum stabilization of austenite is observed.
- the silicon exerts the function to increase the mechanical resistance and ductility of the steel.
- Si content is comprised between 0.05 and 2.0%. When the percentage thereof is lower than 0.05, often a thick iron and manganese oxide layer is formed resulting in increased pickling duration, and in decreased corrosion resistance of the annealed steel and surface quality of the cold rolled sheet. When the percentage thereof is higher than 2.0%, stability properties of the steel are decreased.
- the aluminium presence is finalized to the increment of the ductility of the steel.
- the content thereof in the austenitic steel according to the invention is comprised between 0.01 and 2.0%.
- the content of Al is lower than 0.01%, the mechanical resistance is increased but a quick degradation of the ductility occurs.
- it is present in percentage higher than 2.0%, the steel exhibits decreased ductility along with lower castability during the continuous casting and corrosion susceptibility during hot rolling with consequent worsening of the surface quality of the resulting product.
- Nitrogen promotes the gemination generation, by means of reaction with aluminium and precipitation of fine nitrides (during the solidification) within the austenitic grains, the presence thereof improves both mechanical resistance and suitability to be elongated during the steel working. Nitrogen is present in the steel used according to the invention in percentage lower than 0.1%. In fact when the content of N is higher than 0.1%, excess nitride precipitation takes place resulting in cold machinability and formability degradation.
- Nb+Co and Re+W promote the formation of geminations, and improve both the mechanical resistance and the suitability to be elongated during steel working.
- Figure 1 shows the microstructure of a non- deformed TWIP steel, according to example 2 of the present invention.
- Figure 2 shows the microstructure, of a TWIP steel according to example 2 of the present invention after deformation, wherein the presence of geminates is observed.
- a steel containing C 0.6; Mn 18; Ni 0.5; 0.3; Al 1.0; P+Sn+Sb+As 0.1; S+Se+Te 0.01; N 0.05; Nb+Co 0.1,- apart from iron and unavoidable impurities, is subjected to the process according to the present invention.
- a 1.0 mm thick strip of claimed steel is obtained using a continuous casting plant and it is hot rolled, cold rolled and subjected to recrystallization annealing according to the invention as reported hereinafter.
- Continuous recrystallization annealing occurs at 1000°C for 90s in non-decarburizing atmosphere, carbon activity within annealing atmosphere is 0.15, nitrogen content is 100% and dew point -25°C.
- the final product exhibits the following mechanical features: Rp0.2 290 MPa,. Rm 1000 MPa and A80 90%, and has austenitic microstructure.
- This product is used for the manufacturing of auto- motive components requiring high mechanical resistance and high formability, as for example car structural elements .
- a steel containing C 0.6; Mn 17; Si 0.3; Al 0.04; P+Sn+Sb+As ⁇ 0.1; S+Se+Te 0.01; N 0.05; Re+W 0.2, apart from iron and unavoidable impurities, is subjected to the process according to the present invention.
- a 2.0 mm thick tube made of this steel obtained using a continuous casting plant is hot rolled, cold rolled and subjected to recrystallization annealing according to the invention as reported hereinafter.
- the recrystallization annealing is carried out in batch at 750°C for 180 minutes.
- the carbon ⁇ activity within annealing atmosphere is 0.15
- the nitrogen percentage within the furnace is 95%
- the dew point is - 30°C
- hydrogen is 5%.
- the final strip exhibits the following mechanical features Rp0.2 310 MPa, Rm 950 MPa and A80 80% and has austenitic microstructure.
- This product is used for the preparation of automotive components requiring high mechanical resistance and high ductility, as for example structure reinforcing bars of cars.
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 Sheet Steel (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITRM2010A000641A IT1403129B1 (it) | 2010-12-07 | 2010-12-07 | Procedimento per la produzione di acciaio ad alto manganese con resistenza meccanica e formabilità elevate, ed acciaio così ottenibile. |
PCT/IT2011/000401 WO2012077150A2 (fr) | 2010-12-07 | 2011-12-07 | Procédé de fabrication d'un acier à haute teneur en manganèse présentant une résistance mécanique et une aptitude au formage élevées, et acier obtenu par le procédé |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2649214A2 true EP2649214A2 (fr) | 2013-10-16 |
EP2649214B1 EP2649214B1 (fr) | 2016-12-07 |
Family
ID=43737273
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11820814.9A Active EP2649214B1 (fr) | 2010-12-07 | 2011-12-07 | Procédé de fabrication d'un acier à haute teneur en manganèse présentant une résistance mécanique et une aptitude au formage élevées, et acier obtenu par le procédé |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2649214B1 (fr) |
KR (1) | KR20140025324A (fr) |
CN (1) | CN103339279B (fr) |
IT (1) | IT1403129B1 (fr) |
WO (1) | WO2012077150A2 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3095889A1 (fr) | 2015-05-22 | 2016-11-23 | Outokumpu Oyj | Procédé de fabrication d'un composant en acier austénitique |
WO2017081072A1 (fr) | 2015-11-09 | 2017-05-18 | Outokumpu Oyj | Procédé de fabrication d'un élément en acier austénitique et utilisation de ce élément |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013003516A1 (de) | 2013-03-04 | 2014-09-04 | Outokumpu Nirosta Gmbh | Verfahren zur Herstellung eines ultrahochfesten Werkstoffs mit hoher Dehnung |
KR101657808B1 (ko) * | 2014-12-22 | 2016-09-20 | 주식회사 포스코 | 단열성 전단띠 형성에 대한 저항성이 우수한 오스테나이트계 강재 및 이의 제조방법 |
TWI504756B (zh) * | 2015-01-30 | 2015-10-21 | China Steel Corp | Manufacture method of high strength and high ductility steel |
EP3117922B1 (fr) | 2015-07-16 | 2018-03-21 | Outokumpu Oyj | Procédé de fabrication d'un composant en acier austénitique twip ou trip/twip |
WO2017111491A1 (fr) | 2015-12-24 | 2017-06-29 | 주식회사 포스코 | Tôle d'acier à base d'austénite plaquée d'aluminium à l'état fondu ayant d'excellentes propriétés de plaquage et de soudabilité et son procédé de fabrication |
CN105755388B (zh) * | 2016-04-18 | 2018-04-24 | 和县隆盛精密机械有限公司 | 一种机械臂用高强度耐磨铸件的铸造方法 |
DE102016117494A1 (de) * | 2016-09-16 | 2018-03-22 | Salzgitter Flachstahl Gmbh | Verfahren zur Herstellung eines umgeformten Bauteils aus einem mittelmanganhaltigen Stahlflachprodukt und ein derartiges Bauteil |
KR101903174B1 (ko) | 2016-12-13 | 2018-10-01 | 주식회사 포스코 | 강도 및 연성이 우수한 저합금 강판 |
KR20190138835A (ko) | 2017-04-11 | 2019-12-16 | 티센크루프 스틸 유럽 악티엔게젤샤프트 | 벨형 노에서 어닐링 처리된 냉간 압연한 평강 제품 및 그 제조 방법 |
CN107574377B (zh) * | 2017-09-07 | 2019-05-03 | 北京科技大学 | 一种基于纳米结构的高吸能型高锰twip钢及其制备方法 |
KR101952818B1 (ko) | 2017-09-25 | 2019-02-28 | 주식회사포스코 | 강도 및 연성이 우수한 저합금 강판 및 이의 제조방법 |
EP3735479A4 (fr) * | 2018-01-05 | 2021-07-28 | The University of Hong Kong | Acier pour automobile et son procédé d'élaboration |
CN117265419A (zh) * | 2022-06-15 | 2023-12-22 | 宝山钢铁股份有限公司 | 强度1000-1600MPa的高成形性、易磷化高锰冷轧钢板及其制造方法 |
Family Cites Families (9)
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FR2796083B1 (fr) * | 1999-07-07 | 2001-08-31 | Usinor | Procede de fabrication de bandes en alliage fer-carbone-manganese, et bandes ainsi produites |
DE10259230B4 (de) * | 2002-12-17 | 2005-04-14 | Thyssenkrupp Stahl Ag | Verfahren zum Herstellen eines Stahlprodukts |
FR2876711B1 (fr) * | 2004-10-20 | 2006-12-08 | Usinor Sa | Procede de revetement au trempe a chaud dans un bain de zinc des bandes en acier fer-carbone-manganese |
FR2876708B1 (fr) * | 2004-10-20 | 2006-12-08 | Usinor Sa | Procede de fabrication de toles d'acier austenitique fer-carbone-manganese laminees a froid a hautes caracteristiques mecaniques, resistantes a la corrosion et toles ainsi produites |
FR2878257B1 (fr) * | 2004-11-24 | 2007-01-12 | Usinor Sa | Procede de fabrication de toles d'acier austenitique, fer-carbone-manganese a tres hautes caracteristiques de resistance et d'allongement, et excellente homogeneite |
KR20070099684A (ko) * | 2005-02-02 | 2007-10-09 | 코루스 스타알 베.뷔. | 고강도 및 양호한 성형성을 갖는 오스테나이트계 강, 상기강의 제조방법 및 상기 강의 용도 |
EP1878811A1 (fr) * | 2006-07-11 | 2008-01-16 | ARCELOR France | Procede de fabrication d'une tole d'acier austenitique fer-carbone-manganese ayant une excellente resistance a la fissuration differee, et tole ainsi produit |
KR100985286B1 (ko) * | 2007-12-28 | 2010-10-04 | 주식회사 포스코 | 내지연파괴 특성이 우수한 고강도 고망간강 및 제조방법 |
US8528379B2 (en) | 2009-04-08 | 2013-09-10 | Kirk Ernest Williamson | Method and apparatus for applying tension to flexible items |
-
2010
- 2010-12-07 IT ITRM2010A000641A patent/IT1403129B1/it active
-
2011
- 2011-12-07 KR KR1020137017367A patent/KR20140025324A/ko active IP Right Grant
- 2011-12-07 EP EP11820814.9A patent/EP2649214B1/fr active Active
- 2011-12-07 CN CN201180066940.5A patent/CN103339279B/zh not_active Expired - Fee Related
- 2011-12-07 WO PCT/IT2011/000401 patent/WO2012077150A2/fr active Application Filing
Non-Patent Citations (1)
Title |
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See references of WO2012077150A2 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3095889A1 (fr) | 2015-05-22 | 2016-11-23 | Outokumpu Oyj | Procédé de fabrication d'un composant en acier austénitique |
WO2016188948A1 (fr) | 2015-05-22 | 2016-12-01 | Outokumpu Oyj | Procédé de fabrication d'un composant fait d'acier austénitique |
WO2017081072A1 (fr) | 2015-11-09 | 2017-05-18 | Outokumpu Oyj | Procédé de fabrication d'un élément en acier austénitique et utilisation de ce élément |
EP3173504A1 (fr) | 2015-11-09 | 2017-05-31 | Outokumpu Oyj | Procédé de fabrication d'un composant d'acier austenitique et utilisation dudit composant |
Also Published As
Publication number | Publication date |
---|---|
ITRM20100641A1 (it) | 2012-06-08 |
WO2012077150A2 (fr) | 2012-06-14 |
EP2649214B1 (fr) | 2016-12-07 |
CN103339279B (zh) | 2016-09-28 |
WO2012077150A3 (fr) | 2012-11-22 |
CN103339279A (zh) | 2013-10-02 |
IT1403129B1 (it) | 2013-10-04 |
KR20140025324A (ko) | 2014-03-04 |
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