EP1930456A3 - Powder-metallurgically produced steel plate, application of such a steel plate and method for its manufacture - Google Patents

Powder-metallurgically produced steel plate, application of such a steel plate and method for its manufacture Download PDF

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Publication number
EP1930456A3
EP1930456A3 EP07122626A EP07122626A EP1930456A3 EP 1930456 A3 EP1930456 A3 EP 1930456A3 EP 07122626 A EP07122626 A EP 07122626A EP 07122626 A EP07122626 A EP 07122626A EP 1930456 A3 EP1930456 A3 EP 1930456A3
Authority
EP
European Patent Office
Prior art keywords
component
steel plate
hardness
steel sheet
manufacture
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.)
Withdrawn
Application number
EP07122626A
Other languages
German (de)
French (fr)
Other versions
EP1930456A2 (en
Inventor
Peter Grüneberg
Heiner Rohr
Claudia Dr. Ernst
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Deutsche Edelstahlwerke GmbH
Original Assignee
Deutsche Edelstahlwerke GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Deutsche Edelstahlwerke GmbH filed Critical Deutsche Edelstahlwerke GmbH
Publication of EP1930456A2 publication Critical patent/EP1930456A2/en
Publication of EP1930456A3 publication Critical patent/EP1930456A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/12—Both compacting and sintering
    • B22F3/14—Both compacting and sintering simultaneously
    • B22F3/15—Hot isostatic pressing
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
    • C22C29/005—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides comprising a particular metallic binder
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/02—Making ferrous alloys by powder metallurgy
    • C22C33/0207—Using a mixture of prealloyed powders or a master alloy
    • C22C33/0228—Using a mixture of prealloyed powders or a master alloy comprising other non-metallic compounds or more than 5% of graphite
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/02—Making ferrous alloys by powder metallurgy
    • C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
    • C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
    • C22C33/0285—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5% with Cr, Co, or Ni having a minimum content higher than 5%
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/02—Making ferrous alloys by powder metallurgy
    • C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
    • C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
    • C22C33/0292—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5% with more than 5% preformed carbides, nitrides or borides
    • 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
    • C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
    • 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
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium

Abstract

Die Erfindung schlägt ein für Beschussanwendungen im Zivilbereich geeignetes Stahlblech, eine bevorzugte Verwendung eines solchen Stahlblechs und einen zu seiner Herstellung geeigneten Weg vor, bei dem vereinfachte Produktionsabläufe mit einer größtmöglichen Fehlerfreiheit des erhaltenen Materials kombiniert sind. Ein erfindungsgemäßes Stahlblech ist zu diesem Zweck aus mindestens zwei Komponenten pulvermetallurgisch hergestellt, wobei die eine Komponente eine Härte von 35 - 55 HRC und die zweite Komponente eine Härte aufweist, die jeweils größer ist als die Härte der ersten Komponente und dabei im Bereich von 50 - 75 HRC liegt, wobei mindestens eine der Komponenten eine Stahllegierung ist, die unter folgende Grundzusammensetzung fällt (in Gew.-%): C: ≤ 0,10 %, Si: ≤ 0,50 %, Mn: ≤ 0,50 %, P: ≤ 0,015 %, S: ≤ 0,015 %, Mo: 2,0 - 8,0 %, Ni: 10,0 - 20,0 % Al: ≤ 1,0 %, Co: 6,0 - 16,0 %, Ti: ≤ 3,0 % Rest Eisen und unvermeidbare Verunreinigungen, - und die andere Komponente entweder ebenfalls eine Stahllegierung, die unter die Grundzusammensetzung fällt, oder eine nicht metallische Verbindung ist, die der Gruppe der Oxidkeramiken oder der Gruppe der nichtoxidischen Hartstoffe angehört.The invention proposes a steel sheet suitable for bombardment applications in the civil sector, a preferred use of such a steel sheet, and a route suitable for its manufacture in which simplified production processes are combined with the greatest possible accuracy of the resulting material. For this purpose, a steel sheet according to the invention is produced by powder metallurgy from at least two components, one component having a hardness of 35-55 HRC and the second component having a hardness which is in each case greater than the hardness of the first component and in the range of 50.degree. 75 HRC, wherein at least one of the components is a steel alloy which falls under the following basic composition (in% by weight): C: ≦ 0.10%, Si: ≦ 0.50%, Mn: ≦ 0.50%, P: ≦ 0.015%, S: ≦ 0.015%, Mo: 2.0-8.0%, Ni: 10.0-20.0% Al: ≦ 1.0%, Co: 6.0-16.0 %, Ti: ≤ 3.0% balance iron and unavoidable impurities, and - the other component is either also a steel alloy falling within the base composition or a non-metallic compound belonging to the group of oxide ceramics or the group of non-oxide hard materials ,

EP07122626A 2006-12-07 2007-12-07 Powder-metallurgically produced steel plate, application of such a steel plate and method for its manufacture Withdrawn EP1930456A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006058066A DE102006058066B3 (en) 2006-12-07 2006-12-07 Powder metallurgically produced steel sheet

Publications (2)

Publication Number Publication Date
EP1930456A2 EP1930456A2 (en) 2008-06-11
EP1930456A3 true EP1930456A3 (en) 2009-09-09

Family

ID=39247275

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07122626A Withdrawn EP1930456A3 (en) 2006-12-07 2007-12-07 Powder-metallurgically produced steel plate, application of such a steel plate and method for its manufacture

Country Status (2)

Country Link
EP (1) EP1930456A3 (en)
DE (1) DE102006058066B3 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5270926B2 (en) 2008-02-20 2013-08-21 三菱製鋼株式会社 Iron-based sintered alloy powder
EP3115134A1 (en) * 2015-07-06 2017-01-11 Deutsche Edelstahlwerke GmbH Method of producing a multi-layer composite sheet comprising a multi-layer composite metal material and an existing composite sheet, multilayer composite sheet and use of such a composite sheet
DE102015116880B4 (en) 2015-10-05 2022-07-14 Benteler Automobiltechnik Gmbh vehicle armor component
DE102019116363A1 (en) 2019-06-17 2020-12-17 Benteler Automobiltechnik Gmbh Method for the production of an armor component for motor vehicles
EP3881954A1 (en) * 2020-03-17 2021-09-22 Sandvik Machining Solutions AB A powder for additive manufacturing, use thereof, and an additive manufacturing method
JPWO2022196778A1 (en) * 2021-03-18 2022-09-22
CN113549842A (en) * 2021-06-21 2021-10-26 首钢集团有限公司 High-strength bulletproof helmet shell and preparation method thereof
EP4363138A1 (en) * 2021-07-01 2024-05-08 Sandvik Machining Solutions AB A powder for additive manufacturing, use thereof, and an additive manufacturing method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1126720A (en) * 1966-06-23 1968-09-11 Deutsche Edelstahlwerke Ag A machinable and hardenable sintered steel alloy
EP0260235A2 (en) * 1986-09-01 1988-03-16 Sandvik Aktiebolag Protecting plate of compound design and method of manufacturing the same
EP1052089A2 (en) * 1999-05-11 2000-11-15 Aktiengesellschaft der Dillinger Hüttenwerke Method of manufacturing a composite steel sheet, particularly for the protection of vehicles against bombardment
WO2007027724A2 (en) * 2005-08-30 2007-03-08 Ati Properties, Inc. Steel compositions, methods of forming the same, and articles formed therefrom

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5538683A (en) 1993-12-07 1996-07-23 Crucible Materials Corporation Titanium-free, nickel-containing maraging steel die block article and method of manufacture
DE4344879C2 (en) * 1993-12-29 1997-08-07 G & S Tech Gmbh Schutz Und Sic Composite steel for the protection of vehicles, process for its production and use as a vehicle trim part
SE503422C2 (en) * 1994-01-19 1996-06-10 Soederfors Powder Ab Process when making a composite product of stainless steel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1126720A (en) * 1966-06-23 1968-09-11 Deutsche Edelstahlwerke Ag A machinable and hardenable sintered steel alloy
EP0260235A2 (en) * 1986-09-01 1988-03-16 Sandvik Aktiebolag Protecting plate of compound design and method of manufacturing the same
EP1052089A2 (en) * 1999-05-11 2000-11-15 Aktiengesellschaft der Dillinger Hüttenwerke Method of manufacturing a composite steel sheet, particularly for the protection of vehicles against bombardment
WO2007027724A2 (en) * 2005-08-30 2007-03-08 Ati Properties, Inc. Steel compositions, methods of forming the same, and articles formed therefrom

Also Published As

Publication number Publication date
DE102006058066B3 (en) 2008-08-14
EP1930456A2 (en) 2008-06-11

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