EP2994548A1 - Verfahren zur herstellung von bauteilen aus leichtbaustahl - Google Patents
Verfahren zur herstellung von bauteilen aus leichtbaustahlInfo
- Publication number
- EP2994548A1 EP2994548A1 EP13730795.5A EP13730795A EP2994548A1 EP 2994548 A1 EP2994548 A1 EP 2994548A1 EP 13730795 A EP13730795 A EP 13730795A EP 2994548 A1 EP2994548 A1 EP 2994548A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- forming
- trip
- temperature
- components
- room temperature
- 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
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
- C21D6/04—Hardening by cooling below 0 degrees Celsius
-
- 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
- C21D7/00—Modifying the physical properties of iron or steel by deformation
- C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
- C21D7/10—Modifying the physical properties of iron or steel by deformation by cold working of the whole cross-section, e.g. of concrete reinforcing bars
-
- 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
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
-
- 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
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- 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
- 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
- C21D7/00—Modifying the physical properties of iron or steel by deformation
Definitions
- the invention relates to a method for the production of components made of lightweight steel according to the preamble of claim 1.
- the z. B. from ribbons, sheets or tubes are formed by deformation and, for example, in areas of mechanical engineering, plant, steel and shipbuilding, and in particular in automotive z. B. for body or chassis components application.
- Vehicle components on the other hand, but also a passive safety of the passengers promoting behavior of the individual components with high static and dynamic stresses during operation and in the event of a crash.
- the individual components must meet a variety of requirements in terms of strength, toughness, wear resistance, etc.
- airbag holders which must have a very high degree of toughness in order to be able to absorb the introduced energy in the event of a sudden load.
- Si is 0.05 to 6.0
- Requirement Cr, Cu, Ti, Zr, V and Nb are added.
- This known lightweight steel has a partially stabilized mixed crystal structure with defined stacking fault energy with a z. T. multiple TRIP effect, which transforms the stress- or strain-induced transformation of a face-centered mixed crystal (austenite) into a -Martensit (hexagonal closest packing), which then transforms on further deformation in a body-centered -Martensit and Restaustenit.
- the high degree of deformation is achieved by TRIP (Transformation Induced Plasticity) and TWIP (Twinning Induced Plasticity) properties of the steel.
- the object of the invention is to provide a method for producing components made of metastable austenitic lightweight structural steel with TRIP and TWIP properties, with which it is possible in a simple and cost-effective manner to produce using a material components that meet different requirements in the operating condition can be.
- the forming at a TRIP- / TWIP effect avoiding temperature above room temperature, at 40 to 160 ° C, and to achieve in particular a high component strength, the forming at a den TRIP / TWIP effect reinforcing temperature below room temperature, at -65 to 0 ° C, made.
- Room temperature is understood below to mean a temperature range of 19 ° C to 27 ° C.
- the essence of the invention is to adjust the required forming temperatures according to the requirements of the component. Is used while the
- the sheets, circuit boards or tubes used for the production of the components can be provided in accordance with the invention with metallic blank or with a metallic coating.
- the TRIP effect is based on the difference between the free energies of the individual phases. If the difference of the energies is exceeded by the forming energy, the structure works accordingly.
- the ⁇ phase at room temperature is the stable phase, but it has a very low energy difference to the a- or ⁇ -phase ( Figure).
- the TRIP effect can be intensified at low temperatures, since the energy to be overcome is low. If the forming is carried out at temperatures above room temperature, the austenite stabilizes, since the energy to be overcome increases sharply.
- the resulting in the forming temperature increase in the component can be used selectively.
- the component undergoes an increase in temperature from about room temperature to about 40 to 160 ° C.
- refrigeration is now dispensed with according to the invention or a tempering of the tools to 40 to 160 ° C. is deliberately carried out. In this way, components are produced which have a stable austenitic structure with high ductility.
- the conversion to a component should therefore be carried out at temperatures of about 40-160 ° C and to achieve a high component strength between about -65 and 0 ° C.
- the high forming capacity of austenitic materials can be optimized without the additional addition of alloying elements by using a
- Multi-stage forming process in the first forming stages of the TRIP or TWIP effect is suppressed and so before the last forming stage still the forming capacity of the base material is present.
- low-temperature forming can favor the TRIP or TWIP effect. So can also without adding more
- Alloy elements component strength can be increased.
- the deformation in the first stage or in further stages may be done at a deformation-induced TRIP / TWIP effect above room temperature to maintain the ductility of the starting material and in the final stage, the transformation may be carried out at a TRIP / TWIP Effect enhancing temperature below room temperature to produce a high strength component.
- the forming takes place in several stages, wherein in the individual stages, the forming temperature and / or the degree of deformation and / or the deformation rate can be varied.
- the component in the different transformation stages very different material characteristics can be impressed, which offers a variety of ways to meet different component requirements.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Heat Treatment Of Steel (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/DE2013/000266 WO2014180456A1 (de) | 2013-05-06 | 2013-05-06 | Verfahren zur herstellung von bauteilen aus leichtbaustahl |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2994548A1 true EP2994548A1 (de) | 2016-03-16 |
| EP2994548B1 EP2994548B1 (de) | 2022-10-26 |
Family
ID=48672312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP13730795.5A Active EP2994548B1 (de) | 2013-05-06 | 2013-05-06 | Verfahren zur herstellung von bauteilen aus leichtbaustahl |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US10214790B2 (de) |
| EP (1) | EP2994548B1 (de) |
| KR (1) | KR101749201B1 (de) |
| RU (1) | RU2631219C2 (de) |
| WO (1) | WO2014180456A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018083029A1 (de) * | 2016-11-02 | 2018-05-11 | Salzgitter Flachstahl Gmbh | Nahtlos hergestelltes und halbwarmumgeformtes rohr aus einem mittelmanganhaltigen stahl und verfahren zu seiner herstellung |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3095889A1 (de) | 2015-05-22 | 2016-11-23 | Outokumpu Oyj | Verfahren zur herstellung einer komponente aus austenitischem stahl |
| TR201808389T4 (tr) | 2015-07-16 | 2018-07-23 | Outokumpu Oy | Ostenitli twip veya trip/twip çeliği bileşeni üretimi için metod. |
| DE102015111680A1 (de) * | 2015-07-17 | 2017-01-19 | Benteler Steel/Tube Gmbh | Gasgenerator |
| DE102015112215A1 (de) * | 2015-07-27 | 2017-02-02 | Salzgitter Flachstahl Gmbh | Hochlegierter Stahl insbesondere zur Herstellung von mit Innenhochdruck umgeformten Rohren und Verfahren zur Herstellung derartiger Rohre aus diesem Stahl |
| EP3173504A1 (de) | 2015-11-09 | 2017-05-31 | Outokumpu Oyj | Verfahren zur herstellung eines austenitischen stahlbauteils und verwendung des bauteils |
| DE102016104800A1 (de) * | 2016-03-15 | 2017-09-21 | Salzgitter Flachstahl Gmbh | Verfahren zur Herstellung eines warmumgeformten Stahlbauteils und ein warmumgeformtes Stahlbauteil |
| DE102016110661A1 (de) * | 2016-06-09 | 2017-12-14 | Salzgitter Flachstahl Gmbh | Verfahren zur Herstellung eines kaltgewalzten Stahlbandes aus einem hochfesten, manganhaltigen Stahl |
| WO2018036918A1 (de) * | 2016-08-23 | 2018-03-01 | Salzgitter Flachstahl Gmbh | Verfahren zur herstellung eines höchstfesten stahlbandes mit verbesserten eigenschaften bei der weiterverarbeitung und ein derartiges stahlband |
| 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 |
| DE102016117502A1 (de) * | 2016-09-16 | 2018-03-22 | Salzgitter Flachstahl Gmbh | Verfahren zur Herstellung eines Warm- oder Kaltbandes und/oder eines flexibel gewalzten Stahlflachprodukts aus einem hochfesten manganhaltigen Stahl und Stahlflachprodukt hiernach |
| RU2725939C1 (ru) * | 2016-09-16 | 2020-07-07 | Зальцгиттер Флахшталь Гмбх | Способ изготовления подвергнутой повторному формованию детали из плоского стального продукта с содержанием марганца и деталь такого типа |
| CN111727265B (zh) * | 2018-03-13 | 2023-03-24 | Ak钢铁产权公司 | 含介稳态奥氏体的镀钢在升高温度下的减缩 |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU223123A1 (de) * | 1966-09-15 | 1968-08-02 | ||
| SU427069A1 (ru) * | 1972-04-30 | 1974-05-05 | Ю. Н. Гойхенберг, М. М. Штейнберг, Д. А. Мирзаев , М. А. Смирнов | Способ обработки нержавеющей стали аустенитного класса |
| SU685703A1 (ru) * | 1978-04-04 | 1979-09-15 | Ждановский металлургический институт | Способ упрочнени сталей с нестабильным аустенитом |
| SU850696A1 (ru) * | 1979-06-14 | 1981-07-30 | Ленинградский Ордена Ленинаполитехнический Институт Им.M.И.Калинина | Способ обработки метастабильнойАуСТЕНиТНОй СТАли |
| US4865662A (en) | 1987-04-02 | 1989-09-12 | Ipsco Inc. | Aluminum-manganese-iron stainless steel alloy |
| WO1993013233A1 (en) * | 1991-12-30 | 1993-07-08 | Pohang Iron & Steel Co., Ltd. | Austenitic high manganese steel having superior formability, strength and weldability, and manufacturing process therefor |
| DE19900199A1 (de) | 1999-01-06 | 2000-07-13 | Ralf Uebachs | Leichtbaustahllegierung |
| EP1699582B1 (de) * | 2003-12-23 | 2013-12-11 | Salzgitter Flachstahl GmbH | Verfahren zum erzeugen von warmbändern aus leichtbaustahl |
| DE102004061284A1 (de) | 2003-12-23 | 2005-07-28 | Salzgitter Flachstahl Gmbh | Verfahren zum Erzeugen von Warmbändern aus Leichtbaustahl |
| BRPI0419185A (pt) * | 2004-11-03 | 2007-12-18 | Thyssenkrupp Steel Ag | chapa ou fita de aço de resistência superior, apresentando propriedades twip, e processo para sua fabricação por meio de "direct strip casting" |
| DE202005021771U1 (de) | 2005-12-20 | 2010-02-18 | Salzgitter Flachstahl Gmbh | Umformbarer Leichtbaustahl |
| DE102006033973A1 (de) * | 2006-07-20 | 2008-01-24 | Technische Universität Bergakademie Freiberg | Nichtrostender austenitischer Stahlguss und seine Verwendung |
| DE102006054300A1 (de) | 2006-11-14 | 2008-05-15 | Salzgitter Flachstahl Gmbh | Höherfester Dualphasenstahl mit ausgezeichneten Umformeigenschaften |
| EP2406404B1 (de) | 2009-03-11 | 2017-08-23 | Salzgitter Flachstahl GmbH | Verfahren zum erzeugen eines warmbandes aus einem ferritischen stahl mittels horizontalem bandgiessen |
| US20120121452A1 (en) | 2009-03-11 | 2012-05-17 | Salzgitter Flachstahl Gmbh | Method for producing a hot rolled strip and hot rolled strip produced from triplex lightweight steel |
| DE102009013631B8 (de) * | 2009-03-18 | 2010-12-23 | Burkhard Weiss | Verfahren zur prozessstufenarmen Herstellung hochfester, hochwertiger Formteile aus hochlegierten Stählen mit Plastizitätseffekt und deren Verwendung |
| DE102010024664A1 (de) | 2009-06-29 | 2011-02-17 | Salzgitter Flachstahl Gmbh | Verfahren zum Herstellen eines Bauteils aus einem lufthärtbaren Stahl und ein damit hergestelltes Bauteil |
| DE102009053260B4 (de) | 2009-11-05 | 2011-09-01 | Salzgitter Flachstahl Gmbh | Verfahren zum Beschichten von Stahlbändern und beschichtetes Stahlband |
| DE102010034161B4 (de) * | 2010-03-16 | 2014-01-02 | Salzgitter Flachstahl Gmbh | Verfahren zur Herstellung von Werkstücken aus Leichtbaustahl mit über die Wanddicke einstellbaren Werkstoffeigenschaften |
| DE102011117135A1 (de) | 2010-11-26 | 2012-05-31 | Salzgitter Flachstahl Gmbh | Energie speicherndes Behältnis aus Leichtbaustahl |
| DE112013001144A5 (de) * | 2012-02-25 | 2014-10-30 | Technische Universität Bergakademie Freiberg | Verfahren zur Herstellung hochfester Formteile aus hochkohlenstoff- und hochmanganhaltigem austenitischem Stahlguss mit TRIP/TWIP-Eigenschaften |
-
2013
- 2013-05-06 US US14/889,391 patent/US10214790B2/en active Active
- 2013-05-06 WO PCT/DE2013/000266 patent/WO2014180456A1/de not_active Ceased
- 2013-05-06 RU RU2015152135A patent/RU2631219C2/ru active
- 2013-05-06 EP EP13730795.5A patent/EP2994548B1/de active Active
- 2013-05-06 KR KR1020157033253A patent/KR101749201B1/ko not_active Expired - Fee Related
Non-Patent Citations (2)
| Title |
|---|
| None * |
| See also references of WO2014180456A1 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018083029A1 (de) * | 2016-11-02 | 2018-05-11 | Salzgitter Flachstahl Gmbh | Nahtlos hergestelltes und halbwarmumgeformtes rohr aus einem mittelmanganhaltigen stahl und verfahren zu seiner herstellung |
| WO2018083028A1 (de) * | 2016-11-02 | 2018-05-11 | Salzgitter Flachstahl Gmbh | Nahtloses rohr aus einem mittelmanganhaltigen stahl und verfahren zu seiner herstellung |
Also Published As
| Publication number | Publication date |
|---|---|
| US10214790B2 (en) | 2019-02-26 |
| KR20160003744A (ko) | 2016-01-11 |
| US20160122839A1 (en) | 2016-05-05 |
| EP2994548B1 (de) | 2022-10-26 |
| RU2631219C2 (ru) | 2017-09-19 |
| RU2015152135A (ru) | 2017-06-13 |
| WO2014180456A1 (de) | 2014-11-13 |
| KR101749201B1 (ko) | 2017-06-20 |
| WO2014180456A8 (de) | 2015-08-20 |
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