EP1008659B1 - Verwendung eines martensitaushärtenden Stahles in Form eines Panzerungsbleches - Google Patents
Verwendung eines martensitaushärtenden Stahles in Form eines Panzerungsbleches Download PDFInfo
- Publication number
- EP1008659B1 EP1008659B1 EP99123069A EP99123069A EP1008659B1 EP 1008659 B1 EP1008659 B1 EP 1008659B1 EP 99123069 A EP99123069 A EP 99123069A EP 99123069 A EP99123069 A EP 99123069A EP 1008659 B1 EP1008659 B1 EP 1008659B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sheet
- martensite
- temperature
- maraging steel
- nitriding
- 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.)
- Expired - Lifetime
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
-
- 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
- C21D6/007—Heat treatment of ferrous alloys containing Co
-
- 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
- C22C38/105—Ferrous alloys, e.g. steel alloys containing cobalt containing Co and Ni
-
- 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
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/02—Pretreatment of the material to be coated
-
- 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
- C21D6/02—Hardening by precipitation
Definitions
- the invention is concerned with armor plates made of martensitic steel.
- DE-A-43 44 879 describes such a composite steel made of martensitic hardening Steels.
- the outer layer has 4.0 to 6.0% Mo, 17.0 to 18.0% Ni, ⁇ 0.05% Cr, 1.7 to 1.8% Ti and 14.0 to 15.0% Co
- the inner layer 4.0 to 6.0% Mo, 17.0 to 18.0% Ni, ⁇ 0.08% Cr, 0.5 to 0.8% Ti and 7.0 to 9.0% Co; both layers also contain ⁇ 0.02% C, ⁇ 0.06% Si, ⁇ 0.01% Mn, ⁇ 0.01% P, ⁇ 0.01% S and below ⁇ 0.02% Cu.
- the thickness ratio of the outer layer to the inner layer should be about 3: 2.
- DE-A-21 42 360 is mentioned without criticism, which armor from another Composite steel for the content.
- DE-A-43 09 558 is concerned with projectiles which penetrate the steel sheet lose a substantial part of their energy, but still pierce the steel sheet. This is to be vulcanized or glued to the back of the steel sheet Plastic coating, especially aramid coating, can be counteracted.
- a drill head made of a martensitic steel which is to be arranged in a freely rotating manner on a drill bit of a rock drill.
- the drill head is nitrided to increase the sliding ability of its bearing bore on a cemented journal.
- the abrasion resistance of the surface provided with cutting inserts is increased.
- the subject of WO-A-96 32 508 is a screwdriver. To increase its wear resistance and service life, it should preferably consist of a martensitic steel and be nitrided.
- the present invention has for its object to provide an armor plate to provide, which allows protection with comparatively little effort, the high Security requirements.
- the invention fulfills this purpose by using a martensitic steel, in particular the composition ⁇ 0.03% C, ⁇ 0.1% Si, ⁇ 0.1% Mn, ⁇ 0.01% P, ⁇ 0.01% S. 0.05 to 0.15% Al, 17.0 to 19.0% Ni, 7.0 to 16.0% Co, 4.0 to 6.5% Mo and 0.5 to 2% Ti 0.5% Cr, ⁇ 0.5% Cu, ⁇ 0.2% Nb, ⁇ 0.2% V, ⁇ 0.2% Zr and / or ⁇ 0.2% W, remainder Fe and process-related impurities, the by heating to a temperature below the transformation temperature of martensite ⁇ austenite, and then additionally hardening the surface by nitriding, carbonitriding or sulfonitriding using a temperature which is also below the transformation temperature of martensite ⁇ austenite, in the form of an armor plate to protect against shelling and explosion.
- a martensitic steel in particular the composition ⁇ 0.03% C, ⁇ 0.1% Si, ⁇ 0.
- the hardened layer only has a thickness of 0.10 to 0.15 mm, within which the nitrogen concentration and thus the hardness continuously decrease.
- the layer thickness of the hard layer is 3 to 6 mm and there is an interface between the layers, which always forms a weak point.
- Plasma nitriding is particularly suitable as the nitriding treatment.
- Sheets of 9 mm thickness with the composition 0.003% C, 0.03% Si, 0.02% Mn, 0.002% P, 0.003% S, 0.001% N, 0.10% Al, 4.06% Mo, 18.50% Ni, 11.35% Co and 1.24% Ti were solution annealed and hardened by aging.
- a first sample of the nitrided sheets showed a metallographically determined depth of nitriding of 0.11 mm.
- the hardness was Distance from the top [mm] 0.04 0.12 0.20 0.28 0.36 0.44 Hardness HRC 60.6 59.4 57.5 56.3 57.1 58.1.
- a second sample showed a metallographically determined depth of nitriding of 0.10 mm.
- the hardness was Distance from the top [mm] 0.04 0.12 0.20 0.28 0.36 0.44 HRC 61.0 57.9 57.6 57.1 58.8 58.1.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Plasma & Fusion (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Laminated Bodies (AREA)
- Heat Treatment Of Articles (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
- Ink Jet (AREA)
Description
Die Zusammensetzungen sind hier andere, es handelt sich um kein martensitaushärtendes Material. Die Offenlegungsschrift befasst sich vornehmlich mit der Schweißbarkeit; vorgesehen ist, die Bleche nur an der weicheren Innenlage zu verschweißen.
Als Stand der Technik erwähnt ist die Verschweißung bestimmter Panzerbleche im Zweiten Weltkrieg, die eine oberflächengehärtete dünne Schicht martensitischen Charakters und auf der anderen Seite eine dicke perlitisch-ferritische Zone aufwiesen, die, wenn auch unter Schwierigkeiten, geschweißt werden konnte. Kritisiert ist an diesem Stand der Technik, die äußere Schicht sei dünn und spröde gewesen, darin entstandene Risse konnten sich bis in den weicheren Bereich fortleiten. Die Herstellung sei aufwendig und mit Verzug der Konstruktion verbunden. Gegenwärtige Anforderungen werden nicht mehr erfüllt.
Gegenstand der WO-A-96 32 508 ist ein Schraubendreher. Zur Steigerung seiner Verschleißfestigkeit und Lebensdauer soll er bevorzugt aus einem martensitaushärtenden Stahl bestehen und nitriergehärtet werden.
in Form eines Panzerungsbleches zum Schutz vor Beschuss und Explosionseinwirkung.
Bei den Verbundstählen beträgt demgegenüber die Schichtdicke der harten Schicht 3 bis 6 mm und es besteht eine Grenzfläche zwischen den Lagen, die immer eine Schwachstelle bildet.
- Hier schließt sich Seite 3, Zeile 12 der ursprünglichen Unterlagen an.
Die Härte betrug im | ||||||
Abstand von der Oberseite [mm] | 0,04 | 0,12 | 0,20 | 0,28 | 0,36 | 0,44 |
Härte HRC | 60,6 | 59,4 | 57,5 | 56,3 | 57,1 | 58,1. |
Die Härte betrug im | ||||||
Abstand von der Oberseite [mm] | 0,04 | 0,12 | 0,20 | 0,28 | 0,36 | 0,44 |
HRC | 61,0 | 57,9 | 57,6 | 57,1 | 58,8 | 58,1. |
Claims (4)
- Verwendung eines martensitaushärtenden Stahles, insbesondere der Zusammensetzung ≤ 0,03% C, ≤ 0,1% Si, ≤ 0,1% Mn, ≤ 0,01% P, ≤ 0,01% S, 0,05 bis 0.15% Al, 17,0 bis 19,0% Ni, 7,0 bis 16,0% Co, 4,0 bis 6,5% Mo und 0,5 bis 2% Ti, ggf. ferner ≤ 0,5% Cr, ≤ 0,5% Cu, ≤ 0,2% Nb, ≤ 0,2% V, ≤ 0,2% Zr und/oder ≤ 0,2%W, Rest Fe und verfahrensbedingte Verunreinigungen, der durch Erwärmen auf eine Temperatur unter der Umwandlungstemperatur Martensit → Austenit ausgehärtet worden ist und bei dem auf der Einwirkungsseite anschließend zusätzlich eine Oberflächenhärtung durch Nitrieren, Carbonitrieren oder Sulfonitrieren vorgenommen worden ist unter Anwendung einer Temperatur, die gleichfalls unter der Umwandlungstemperatur Martensit → Austenit liegt,
in Form eines Panzerungsbleches zum Schutz vor Beschuss und Explosionseinwirkung. - Verwendung nach Anspruch 1,
dadurch gekennzeichnet, dass die Aushärtung des Panzerungsbleches nach dem Ausschneiden und Formen des Zuschnitts vorgenommen wird. - Verwendung nach Anspruch 1 oder 2 eines Stahles, bei dem eine Plasmanitrierung vorgenommen worden ist.
- Verwendung nach einem der Ansprüche 1 bis 3 in Form eines Verbundstahlbleches, bei dem die äußere Lage durch Nitrieren, Carbonitrieren oder Sulfonitrieren oberflächengehärtet worden ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19857156 | 1998-12-11 | ||
DE19857156A DE19857156B4 (de) | 1998-12-11 | 1998-12-11 | Verwendung eines Panzerungsbleches aus martensitaushärtendem Stahl |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1008659A1 EP1008659A1 (de) | 2000-06-14 |
EP1008659B1 true EP1008659B1 (de) | 2003-06-25 |
Family
ID=7890714
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99123069A Expired - Lifetime EP1008659B1 (de) | 1998-12-11 | 1999-11-20 | Verwendung eines martensitaushärtenden Stahles in Form eines Panzerungsbleches |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1008659B1 (de) |
AT (1) | ATE243768T1 (de) |
DE (2) | DE19857156B4 (de) |
ES (1) | ES2202992T3 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006122731A1 (de) * | 2005-05-20 | 2006-11-23 | Carl Aug. Picard Gmbh & Co. Kg | Sicherheitspanzerung zum schutz gegen beschuss sowie verfahren zu ihrer herstellung |
DE102007039993A1 (de) | 2007-08-23 | 2009-02-26 | Edag Gmbh & Co. Kgaa | Strukturteil für eine Fahrzeug-Panzerung |
DE102008014914A1 (de) | 2007-08-23 | 2009-09-24 | Edag Gmbh & Co. Kgaa | Strukturteil für eine Fahrzeug-Panzerung |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19961948A1 (de) * | 1999-12-22 | 2001-06-28 | Dillinger Huettenwerke Ag | Verbundstahlblech, insbesondere zum Schutz von Fahrzeugen gegen Beschuß |
US7754028B2 (en) * | 2002-07-29 | 2010-07-13 | Koninklijke Philips Electronics N.V. | Plasma-nitriding of maraging steel, shaver cap for an electric shaver, cutting device made out of such steel and an electric shaver |
DE102008010168B4 (de) * | 2008-02-20 | 2010-04-22 | Benteler Automobiltechnik Gmbh | Panzerung für ein Fahrzeug |
DE102010005262B4 (de) | 2009-01-21 | 2019-09-12 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zur Herstellung von eine Hartstoffbeschichtung aufweisenden Werkzeugen und deren Verwendungen |
DE102010047020A1 (de) * | 2010-09-30 | 2012-04-05 | Obeko Gmbh | Verfahren zum Beschichten von Oberflächen |
DE102012007292A1 (de) * | 2012-04-12 | 2013-10-17 | Linde Aktiengesellschaft | Verfahren und Behandlungsstrecke zum abschnittsweise Veredeln eines Metallprodukts |
DE102015116619B4 (de) | 2015-09-30 | 2018-11-29 | Thyssenkrupp Ag | Herstellung von Halbzeugen und Strukturbauteilen mit bereichsweise unterschiedlichen Materialdicken |
CN112251684B (zh) * | 2020-09-29 | 2022-02-15 | 中国科学院金属研究所 | 一种微纳米晶马氏体时效钢及其制备方法 |
CN113549842A (zh) * | 2021-06-21 | 2021-10-26 | 首钢集团有限公司 | 一种高强度防弹头盔壳及其制备方法 |
CN114000118B (zh) * | 2021-10-25 | 2024-03-22 | 哈尔滨工程大学 | 一种钛合金表面硬度梯度分布层厚可调的氮化层制备方法 |
CN114381696B (zh) * | 2021-11-30 | 2022-10-25 | 西安交通大学 | 一种微型多源金属超薄膜电极超高真空蒸镀装置及方法 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3341372A (en) * | 1965-07-12 | 1967-09-12 | Int Nickel Co | Process for heat treating cast maraging steels |
DE1228427B (de) * | 1965-09-15 | 1966-11-10 | Deutsche Edelstahlwerke Ag | Verwendung eines martensitaushaertenden nickelhaltigen Baustahles als Werkstoff fuer durch Chromieren korrosionsbestaendig gemachte Gegenstaende |
FR2106939A5 (en) * | 1970-09-30 | 1972-05-05 | Creusot Forges Ateliers | Weldable clad steel sheet - for armour plate |
US3779720A (en) * | 1971-11-17 | 1973-12-18 | Chromalloy American Corp | Plasma sprayed titanium carbide tool steel coating |
DE2921854C1 (de) * | 1979-05-30 | 1990-11-15 | Thyssen Ind Ag Maschb | Verfahren zum Herstellen einer aus Mehrlagenstahl bestehenden Panzerung |
JPS62500574A (ja) * | 1984-10-17 | 1987-03-12 | エス・ア−ル・アイ・インタ−ナシヨナル | 金属に被膜を施用する方法並びにそれによつて得られた製品 |
CA1270408A (en) * | 1987-04-07 | 1990-06-19 | James Alexander Evert Bell | Coated article having a base of age-hardened metal |
US4969378A (en) * | 1989-10-13 | 1990-11-13 | Reed Tool Company | Case hardened roller cutter for a rotary drill bit and method of making |
DE4309558A1 (de) * | 1993-03-24 | 1994-09-29 | Metzger Stahlbau Gmbh | Martensitaushärtbarer Stahl |
DE4344879C2 (de) * | 1993-12-29 | 1997-08-07 | G & S Tech Gmbh Schutz Und Sic | Verbundstahl für den Schutz von Fahrzeugen, Verfahren zu dessen Herstellung sowie Verwendung als Fahrzeugverkleidungsteil |
DE19513366A1 (de) * | 1995-04-08 | 1996-10-10 | Werner Hermann Wera Werke | Schraubendreher, Schraubendrehereinsatz oder dergleichen |
JPH1025539A (ja) * | 1996-07-12 | 1998-01-27 | Honda Motor Co Ltd | 高疲労強度プレス成形部材 |
-
1998
- 1998-12-11 DE DE19857156A patent/DE19857156B4/de not_active Expired - Fee Related
-
1999
- 1999-11-20 AT AT99123069T patent/ATE243768T1/de active
- 1999-11-20 EP EP99123069A patent/EP1008659B1/de not_active Expired - Lifetime
- 1999-11-20 ES ES99123069T patent/ES2202992T3/es not_active Expired - Lifetime
- 1999-11-20 DE DE59906082T patent/DE59906082D1/de not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006122731A1 (de) * | 2005-05-20 | 2006-11-23 | Carl Aug. Picard Gmbh & Co. Kg | Sicherheitspanzerung zum schutz gegen beschuss sowie verfahren zu ihrer herstellung |
DE102007039993A1 (de) | 2007-08-23 | 2009-02-26 | Edag Gmbh & Co. Kgaa | Strukturteil für eine Fahrzeug-Panzerung |
DE102008014914A1 (de) | 2007-08-23 | 2009-09-24 | Edag Gmbh & Co. Kgaa | Strukturteil für eine Fahrzeug-Panzerung |
DE102008014914B4 (de) * | 2007-08-23 | 2013-07-04 | Vps Vehicle Protection Systems Gmbh | Strukturteil für eine Fahrzeug-Panzerung |
Also Published As
Publication number | Publication date |
---|---|
ES2202992T3 (es) | 2004-04-01 |
DE19857156B4 (de) | 2005-03-24 |
ATE243768T1 (de) | 2003-07-15 |
DE19857156A1 (de) | 2000-06-21 |
DE59906082D1 (de) | 2003-07-31 |
EP1008659A1 (de) | 2000-06-14 |
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