EP1008659B1 - Verwendung eines martensitaushärtenden Stahles in Form eines Panzerungsbleches - Google Patents

Verwendung eines martensitaushärtenden Stahles in Form eines Panzerungsbleches Download PDF

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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
Application number
EP99123069A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1008659A1 (de
Inventor
Christoph Dr. Dilg
Uwe Hofmann
Claus Dr. Just
Hans-Jürgen Rögele
Helmut Schönberger
Jürgen Vogt
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.)
AG Der Dillinger Huettenwerke
Dillinger Huettenwerke AG
Original Assignee
AG Der Dillinger Huettenwerke
Dillinger Huettenwerke AG
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 AG Der Dillinger Huettenwerke, Dillinger Huettenwerke AG filed Critical AG Der Dillinger Huettenwerke
Publication of EP1008659A1 publication Critical patent/EP1008659A1/de
Application granted granted Critical
Publication of EP1008659B1 publication Critical patent/EP1008659B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (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)
EP99123069A 1998-12-11 1999-11-20 Verwendung eines martensitaushärtenden Stahles in Form eines Panzerungsbleches Expired - Lifetime EP1008659B1 (de)

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 (es)
AT (1) ATE243768T1 (es)
DE (2) DE19857156B4 (es)
ES (1) ES2202992T3 (es)

Cited By (3)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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
AU2003281863A1 (en) * 2002-07-29 2004-02-23 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)

* Cited by examiner, † Cited by third party
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
WO1986002290A1 (en) * 1984-10-17 1986-04-24 Sri International Process for applying coatings to metals and resulting product
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

Cited By (4)

* Cited by examiner, † Cited by third party
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
EP1008659A1 (de) 2000-06-14
DE59906082D1 (de) 2003-07-31
DE19857156A1 (de) 2000-06-21
ATE243768T1 (de) 2003-07-15

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