JP2016528379A - 新規な粉末 - Google Patents
新規な粉末 Download PDFInfo
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- JP2016528379A JP2016528379A JP2016520394A JP2016520394A JP2016528379A JP 2016528379 A JP2016528379 A JP 2016528379A JP 2016520394 A JP2016520394 A JP 2016520394A JP 2016520394 A JP2016520394 A JP 2016520394A JP 2016528379 A JP2016528379 A JP 2016528379A
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- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
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- 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
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/02—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers
- B22F7/04—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers with one or more layers not made from powder, e.g. made from solid metal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K10/00—Welding or cutting by means of a plasma
- B23K10/02—Plasma welding
- B23K10/027—Welding for purposes other than joining, e.g. build-up welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/34—Laser welding for purposes other than joining
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3033—Ni as the principal constituent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3053—Fe as the principal constituent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3053—Fe as the principal constituent
- B23K35/3066—Fe as the principal constituent with Ni as next major constituent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3053—Fe as the principal constituent
- B23K35/308—Fe as the principal constituent with Cr as next major constituent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3053—Fe as the principal constituent
- B23K35/308—Fe as the principal constituent with Cr as next major constituent
- B23K35/3086—Fe as the principal constituent with Cr as next major constituent containing Ni or Mn
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
- B32B15/011—Layered products comprising a layer of metal all layers being exclusively metallic all layers being formed of iron alloys or steels
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/0433—Nickel- or cobalt-based alloys
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
- C22C19/058—Alloys based on nickel or cobalt based on nickel with chromium without Mo and W
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
-
- 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
- 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
- C22C38/08—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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
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- 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
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
- C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
- C23C24/106—Coating with metal alloys or metal elements only
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- 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
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
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- 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
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/12—Metallic powder containing non-metallic particles
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- 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
- B22F2301/00—Metallic composition of the powder or its coating
- B22F2301/35—Iron
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- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
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- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Optics & Photonics (AREA)
- Composite Materials (AREA)
- Manufacturing & Machinery (AREA)
- Coating By Spraying Or Casting (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Powder Metallurgy (AREA)
Abstract
Description
1. 5〜20%のCr;0.5〜5%のSi;0.2〜3.5%のB;12〜70%のNi;0〜1.5%のC、0〜2%のP;残部がFeからなる、金属部品を溶射する又は溶接肉盛することによる表面被覆に適合した金属粉末。
2. 5〜9%のCr;2〜3%のSi;0.2〜2%のB;16〜55%のNi;0〜1.5%のC、0〜2%のP;残部がFeからなる、上記1に記載の金属粉末。
3. 5.5〜8%のCr、2〜3%のSi;0.2〜2%のB、16〜50%のNi;0〜1.5%のC、0〜2%のP;残部がFeからなる、上記1又は2に記載の金属粉末。
4. プラズマアーク溶接又はレーザ肉盛による表面被覆に適合した、上記1から3までのいずれか1つに記載の金属粉末。
5. 鋳鉄を表面被覆するのに適合した、上記1から4のいずれか1つに記載の金属粉末。
6. 鋳鉄構成部品のプラズマアーク溶接又はレーザ肉盛のための、上記1から5のいずれか1つに記載の金属粉末の使用。
7. 上記1から5のいずれか1つに記載の粉末を用いて作製された表面被覆を有する金属又は鋳鉄構成部品。
以下の実施例で用いた粉末は慣用的なガス微粒化によって作製され、次いで、53から150μmの間に篩分けをした。種々の粉末の含有量は、表1に示される。
90mmの直径及びほぼ35mmの高さを持つラメラ鋳鉄パック(puck)を以下のように被覆した。パックを、380℃の空気中にて、炉中で予熱した。ほぼ1cmの幅を持つ1つの層をパック直径に沿って付着させた。以下の溶接パラメータを用いた;溶接電流90〜105A、溶接速度6〜7cm/分、供給速度28〜30g/分、3.5リットル/分の供給ガス、PTAビームの振動、1〜2Aの監視電流。溶接の後、試料をバーミキュライト中で冷却した。
90mmの直径及びほぼ35mmの高さを持つラメラ鋳鉄パックを、以下のようにレーザ肉盛りした。パックを、380℃の空気中にて、炉中で予熱した。共軸粉末供給装置を備えた、12×2mmのスポットを持つ4kWダイレクトダイオードレーザを用いることによって、ほぼ1cmの幅を持つ1つの層をパック直径に沿って付着させた。以下のレーザ肉盛パラメータを用いた:2kW電力、4〜5mm/秒の間の肉盛速度、粉末供給速度31g/分及びシールドガス10〜11リットル/分。達成された結果を表2に示す。
ダイ浸透剤を用いることによって、溶接したままの構成部品を被膜中の亀裂形成に関して評価した。毛細管作用を介して表面の欠陥又は亀裂に吸い込まれる、高度に浸透性の赤色染料で試料を被覆した。一定の時間の後、過剰な染料を表面から除去し、白色顕色剤を適用する。顕色剤は、表面に開いている欠陥から浸透剤を吸出し、表面に接触している亀裂が存在するかを見るのを可能とする。いずれの被覆も表面に接触した亀裂を示さなかった。
基材材料からの希釈。試料の表面を軽く研磨して、表面酸化物を除去し、被覆の化学的性質を、携帯式X線蛍光アナライザーによって、ほぼ7mm2の2つの領域で、各々、分析した。次いで、平均的な被覆の化学的性質を評価した。粉末の、及び基材材料の化学組成を知ることによって、希釈は以下のように計算された。
希釈=ρc(Xc+s−Xc)/ρs(Xs−Xc+s)+ρc(Xc+s−Xc)
ρc=溶融した粉末合金の密度(kg/m3)
ρs=基材材料の密度(kg/m3)
Xc+s=皮膜中の元素Xの重量%
Xc=粉末合金中の元素Xの重量%
Xs=基材中の元素Xの重量%
行った試験は、全ての材料について5〜20%の範囲の希釈を示した。
30kgfの負荷でのビッカース硬度(HV30)は、被覆表面にてビューラー(Buehler)硬度計で測定した。硬度測定に先立って、被覆を酸化アルミニウム石で平面研磨して、試料の底部に平行な平坦な表面を達成した。平面研磨に続いて、500メッシュ、次いで、800メッシュの炭化ケイ素ペーパーでの精研磨を行った。5回の圧痕を被覆表面で行い、平均硬度を計算した。
微細構造。光学顕微鏡下で試料を分析した。金属組織学的検討用の試料を、被覆のほぼ中央において溶接方向に垂直に切断した。試料をベークライト中で成形し、次いで、Al2O3石上で、及び9μmの布上で平面研磨した。次いで、試料を3μmの布、続いて、1μmの布上で磨いて、鏡面状の表面を得た。試料を磨いたままの条件で調べて、基材に対する結合度、最大長さが100μmを超える気孔の数、遊離黒鉛の存在、被覆中及び/又は鋳鉄熱影響域中の亀裂を評価した。被覆中で亀裂は見出されなかった。いくつかの試料では、被覆エッジで出発する鋳鉄HAZにおいて亀裂が観察された。亀裂の長さを測定し、双方の被覆エッジにおける合計亀裂長は、PTA被覆試料については表1で、レーザ肉盛りした試料については表2で報告する。調べた断面における最大長さが100μmを超える気孔の数は0から5の間であり、比較例1から3におけるように同様な量であった。
粉末1を、フレーム溶射後、溶着によって低合金炭素鋼上に付着させた。20mmの直径を持つ円柱ロッドを被覆した。ロッドをまず磨き、次いで、Metco 5P−IIガンで溶射した。溶着は、空気中にて、オキシアセチレントーチによって行った。溶射及び溶着双方の間、ロッドを回転させた。基材への良好な結合及び通常の気孔率が達成された。図3参照。
粉末1を、UniqueCoat TechnologiesのM3 HVAFガンによって、低合金炭素鋼上に付着させた。試験のための選択された粒度は25〜37μmであった。直径がほぼ20mmのコインを被覆した。被覆に先立って、試料をグリットブラスト処理した。空気及びプロパンを燃焼ガスとして用い、他方、空気をキャリアガスとして用いた。供給速度は100g/分であった。被覆の概要は図4に示される。結合領域における黒色粒子は、グリットブラスティング工程からのアルミナである。
粉末1を、PTA溶接によって、アルミニウム青銅基材タイプSS5716−15(典型的な化学組成77〜82%のCu、8.5〜11%のAl、4〜6%のNi、2.5〜5%のFe)上に付着させた。被覆は、直径が約920mm及び高さが30mmのパック上で行った。被覆に先立って、パックを、空気中で450℃にて予熱した。以下の処理パラメータ、即ち、Effect 90A、溶接速度7cm/分、供給速度25g/分を用いた。1つの層を付着させた。基材への結合が良好な無亀裂被覆を得ることができた。図5。
粉末1を、ステンレス基材タイプAISI316L上にPTA溶接によって付着させた。被覆は、50×100×30mmのサイズを持つ棒上で行った。被覆のために、以下の処理パラメータを用いた。Effect 110A、溶接速度7cm/分、供給速度25g/分。1つの層を付着させた。基材への結合が良好な無亀裂被覆が達成された。
50%の粉末1を、50%の球状鋳造炭化タングステンWC/W2Cと混合した。4kWのダイオードレーザを用いることによって、混合物をレーザ肉盛りした。混合物は、3kWの電力及び5mm/秒の肉盛速度を用いて肉盛処理した。被覆の断面は図6に示される。
Claims (7)
- 金属部品を溶射又は溶接肉盛することによる表面被覆に適合した金属粉末であって、5〜20%のCr、0.5〜5%のSi、0.2〜3.5%のB、12〜70%のNi、0〜1.5%のC、0〜2%のP、そして残部がFeからなる金属粉末。
- 5〜9%のCr、2〜3%のSi、0.2〜2%のB;16〜55%のNi、0〜1.5%のC、0〜2%のP、残部がFeからなる、請求項1に記載の金属粉末。
- 5.5〜8%のCr、2〜3%のSi、0.2〜2%のB、16〜50%のNi、0〜1.5%のC、0〜2%のP、残部がFeからなる、請求項1又は2に記載の金属粉末。
- プラズマアーク溶接又はレーザ肉盛による表面被覆に適合した、請求項1から3のいずれか一項に記載の金属粉末。
- 鋳鉄を表面被覆するのに適合した、請求項1から4のいずれか一項に記載の金属粉末。
- 鋳鉄構成部品のプラズマアーク溶接又はレーザ肉盛のための、請求項1から5のいずれか一項に記載の金属粉末の使用。
- 請求項1から5のいずれか一項に記載の粉末を用いて作製された表面被覆を有する金属又は鋳鉄構成部品。
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