EP2252721B1 - Hartstoffbeschichteter körper - Google Patents

Hartstoffbeschichteter körper Download PDF

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Publication number
EP2252721B1
EP2252721B1 EP09718954.2A EP09718954A EP2252721B1 EP 2252721 B1 EP2252721 B1 EP 2252721B1 EP 09718954 A EP09718954 A EP 09718954A EP 2252721 B1 EP2252721 B1 EP 2252721B1
Authority
EP
European Patent Office
Prior art keywords
layer
layers
hard material
hard
coated body
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.)
Active
Application number
EP09718954.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2252721A1 (de
Inventor
Hendrikus Van Den Berg
Hartmut Westphal
Volkmar Sottke
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.)
Kennametal Inc
Original Assignee
Kennametal Inc
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=40586932&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2252721(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Kennametal Inc filed Critical Kennametal Inc
Priority to PL09718954T priority Critical patent/PL2252721T3/pl
Priority to EP15185878.4A priority patent/EP3031948B1/de
Publication of EP2252721A1 publication Critical patent/EP2252721A1/de
Application granted granted Critical
Publication of EP2252721B1 publication Critical patent/EP2252721B1/de
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Classifications

    • 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
    • C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
    • C23C30/005—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process on hard metal substrates
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
    • Y10T428/2495—Thickness [relative or absolute]
    • Y10T428/24967—Absolute thicknesses specified
    • Y10T428/24975—No layer or component greater than 5 mils thick

Definitions

  • the invention relates to a hard-coated body with a plurality of CVD applied hard material layers.
  • the cutting material should be resistant to abrasion, which at an early stage has led to hard metal or cermet substrate bodies being provided with surface coatings, with carbides, nitrides or carbonitrides of titanium and later aluminum oxide layers being used as wear protection layers.
  • hard metal or cermet substrate bodies being provided with surface coatings, with carbides, nitrides or carbonitrides of titanium and later aluminum oxide layers being used as wear protection layers.
  • multi-layer wear protection layers of different hard materials As wear-reducing layers, for example, aluminum oxide layers are known, which are arranged on one or more intermediate layers such as titanium carbonitride or titanium nitride.
  • Ti-Al-N layer which can be produced as a monophase layer with aluminum contents up to 60% by PVD. At higher aluminum contents, however, a mixture of cubic and hexagonal TiAlN is formed, and with even higher proportions of aluminum, only the softer and not wear-resistant hexagonal wurtzite structure is produced.
  • PVD plasma CVD
  • plasma CVD requires high plasma homogeneity because the plasma power density has a direct bearing on the Ti / Al atomic ratio of the layer.
  • the production of single-phase cubic Ti 1-x Al x -N layers with a high aluminum content is not possible with the industrially used PVD processes.
  • WO 2007/003648 A1 in order to improve the wear resistance and the oxidation resistance, it is proposed to produce a hard-coated body with a single or multilayer coating system by CVD containing at least one Ti 1-x Al x N hard material layer, including the body in a reactor at temperatures in the range of 700 ° C to 900 ° C by CVD without plasma excitation is coated and should be used as precursors titanium hallogenides, aluminum halides and reactive nitrogen compounds, which are mixed at elevated temperature.
  • the chlorine content is in the range between 0.05 to 0.9 at%. It is also known from this document that the Ti 1-x Al x N hard-material layer or layers can contain up to 30% by mass of amorphous layer constituents.
  • the hardness value of the layers obtained is in the range of 2,500 HV to 3,800 HV.
  • the layer system applied to a substrate body consists of a titanium nitride, titanium carbonitride or titanium carbide bonding layer applied to the body, followed by a phase gradient layer and finally an outer layer of a single- or multi-phase Ti 1-x Al x N hard-material layer.
  • the phase gradient layer consists of a TiN / h-AlN phase mixture on its side facing the connection layer and, with increasing layer thickness, has an increasing phase fraction of fcc-TiAIN with a proportion of more than 50% and, concomitantly, a simultaneous decrease in the phase proportions of TiN and h- AlN on.
  • the thermal resistance of the coating is of great importance for the application of this material during machining operations, in particular at high cutting speeds.
  • temperatures are well above 1,000 ° C. At such temperatures, different coefficients of expansion that exist for the substrates between the individual layers, significantly. This leads to the formation of stresses between the individual layers and, if the high temperature is transported by heat conduction from the outer layer to the substrate body, in the worst case to a detachment of the coating, making the cutting insert is unusable.
  • Ti 1-x Al x N, Ti 1-x Al x C or Ti 1-x Al x CN layer instead of a TiCN layer commonly used in the prior art has the advantage that the thermal conductivity in the layer disposed below the Al 2 O 3 layer is about 80% smaller, so that the Ti 1-x Al x N, Ti 1-x Al x C or -CN layer as significantly improved thermal insulation for Substrate body proves.
  • the outer Al 2 O 3 layer is also more resistant to oxidation and harder by about 50% compared to a TiCN outer layer, resulting in a higher wear resistance.
  • the Ti 1-x Al x CN, Ti 1-x Al x C or Ti 1-x Al x N layer may be single-phase and have a cubic structure or be multi-phase, and in addition to a main cubic phase another phase in wurtzite structure and / or have TiN. Up to 30 mass% may contain amorphous layer constituents. The chlorine content is between 0.01 to 3 At%.
  • a TiN and / or TiCN layer can be used as a bonding layer to the substrate body, which consists of a hard metal, a cermet or a ceramic, so that the sequence of layers from inside to outside TiN or TiCN TiAlC (N) -Al 2 O 3 is.
  • TiCN layers are also present between the Al 2 O 3 outer layer and the Ti 1-x Al x N layer, Ti 1-x Al x C layer or the Ti 1-x Al x CN layer possible.
  • the aluminum content as metal content is preferably between 70% and 90%.
  • the layer thickness of a Ti 1-x Al x N layer, Ti 1-x Al x C layer or a Ti 1-x Al x CN layer may vary between 2 ⁇ m to 10 ⁇ m, preferably 3 ⁇ m to 7 ⁇ m.
  • the aforementioned layer may also contain proportions of hexagonal aluminum nitride, at most 25%.
  • TiAlN / TiAlCN / TiAlC alternating layer then has a total thickness resulting from the sum of the thicknesses of each individual layer, which is between 1 nm and 5 nm.
  • the total thickness should be at least 1 micron to 5 microns.
  • Ti 1-x Al x N or Ti 1-x Al x CN or Ti 1-x Al x C successively until reaching the desired total thickness of between 1 micron and 5 microns applied.
  • the TiAlN, TiAIC or TiAICN layer can contain up to 30% amorphous constituents and chlorine contents up to 3 at%.
  • the consisting of a hard metal, a cermet or a ceramic substrate body is subjected to a CVD coating at coating temperatures between 650 ° C and 900 ° C, wherein in the gas atmosphere titanium and aluminum chlorides and ammonia are introduced to produce a TiAIN layer.
  • a first between 2 .mu.m and 10 .mu.m preferably 3 microns to 7 microns thick layer is applied in a conventional manner by means of the CVD method at least 2 microns maximum 10 microns thick Al 2 O 3 layer.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Vapour Deposition (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Carbon And Carbon Compounds (AREA)
EP09718954.2A 2008-03-12 2009-01-20 Hartstoffbeschichteter körper Active EP2252721B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL09718954T PL2252721T3 (pl) 2008-03-12 2009-01-20 Korpus powlekany twardym materiałem
EP15185878.4A EP3031948B1 (de) 2008-03-12 2009-01-20 Hartstoffbeschichteter körper

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008013965A DE102008013965A1 (de) 2008-03-12 2008-03-12 Hartstoffbeschichteter Körper
PCT/EP2009/000309 WO2009112115A1 (de) 2008-03-12 2009-01-20 Hartstoffbeschichteter körper

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP15185878.4A Division-Into EP3031948B1 (de) 2008-03-12 2009-01-20 Hartstoffbeschichteter körper
EP15185878.4A Division EP3031948B1 (de) 2008-03-12 2009-01-20 Hartstoffbeschichteter körper

Publications (2)

Publication Number Publication Date
EP2252721A1 EP2252721A1 (de) 2010-11-24
EP2252721B1 true EP2252721B1 (de) 2015-11-04

Family

ID=40586932

Family Applications (2)

Application Number Title Priority Date Filing Date
EP09718954.2A Active EP2252721B1 (de) 2008-03-12 2009-01-20 Hartstoffbeschichteter körper
EP15185878.4A Revoked EP3031948B1 (de) 2008-03-12 2009-01-20 Hartstoffbeschichteter körper

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP15185878.4A Revoked EP3031948B1 (de) 2008-03-12 2009-01-20 Hartstoffbeschichteter körper

Country Status (13)

Country Link
US (1) US8389134B2 (ko)
EP (2) EP2252721B1 (ko)
JP (1) JP5863241B2 (ko)
KR (1) KR20100122918A (ko)
CN (2) CN103834928B (ko)
BR (1) BRPI0908924B1 (ko)
CA (1) CA2717187C (ko)
DE (1) DE102008013965A1 (ko)
ES (2) ES2628524T3 (ko)
MX (1) MX2010009890A (ko)
PL (2) PL2252721T3 (ko)
RU (1) RU2491368C2 (ko)
WO (1) WO2009112115A1 (ko)

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JP5924507B2 (ja) 2014-09-25 2016-05-25 三菱マテリアル株式会社 硬質被覆層がすぐれた耐チッピング性を発揮する表面被覆切削工具
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JP6931452B2 (ja) 2015-10-30 2021-09-08 三菱マテリアル株式会社 硬質被覆層がすぐれた耐摩耗性および耐チッピング性を発揮する表面被覆切削工具
JP6931453B2 (ja) 2015-10-30 2021-09-08 三菱マテリアル株式会社 硬質被覆層がすぐれた耐チッピング性を発揮する表面被覆切削工具
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WO2018047733A1 (ja) * 2016-09-06 2018-03-15 住友電工ハードメタル株式会社 切削工具およびその製造方法
WO2018047734A1 (ja) * 2016-09-06 2018-03-15 住友電工ハードメタル株式会社 切削工具およびその製造方法
WO2018047735A1 (ja) * 2016-09-06 2018-03-15 住友電工ハードメタル株式会社 切削工具およびその製造方法
JP6781954B2 (ja) * 2017-01-25 2020-11-11 三菱マテリアル株式会社 硬質被覆層がすぐれた耐チッピング性、耐剥離性を発揮する表面被覆切削工具
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EP3031948A1 (de) 2016-06-15
BRPI0908924B1 (pt) 2024-01-23
RU2010141746A (ru) 2012-04-20
CA2717187A1 (en) 2009-09-17
CA2717187C (en) 2015-11-17
JP2011516722A (ja) 2011-05-26
MX2010009890A (es) 2010-09-30
US20100323176A1 (en) 2010-12-23
ES2561597T3 (es) 2016-02-29
CN103834928B (zh) 2016-11-02
KR20100122918A (ko) 2010-11-23
CN103834928A (zh) 2014-06-04
JP5863241B2 (ja) 2016-02-16
BRPI0908924A2 (pt) 2015-08-18
WO2009112115A1 (de) 2009-09-17
RU2491368C2 (ru) 2013-08-27
EP3031948B1 (de) 2017-03-15
US8389134B2 (en) 2013-03-05
PL2252721T3 (pl) 2016-02-29
ES2628524T3 (es) 2017-08-03
PL3031948T3 (pl) 2017-07-31
EP2252721A1 (de) 2010-11-24
DE102008013965A1 (de) 2009-09-17

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