JP7397868B2 - 付加製造された耐火金属部材、付加製造方法及び粉末 - Google Patents
付加製造された耐火金属部材、付加製造方法及び粉末 Download PDFInfo
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- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 47
- 229910052750 molybdenum Inorganic materials 0.000 claims description 47
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- MGRWKWACZDFZJT-UHFFFAOYSA-N molybdenum tungsten Chemical compound [Mo].[W] MGRWKWACZDFZJT-UHFFFAOYSA-N 0.000 claims description 9
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- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 description 10
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- YUSUJSHEOICGOO-UHFFFAOYSA-N molybdenum rhenium Chemical compound [Mo].[Mo].[Re].[Re].[Re] YUSUJSHEOICGOO-UHFFFAOYSA-N 0.000 description 1
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- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/28—Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
- C22C27/04—Alloys based on tungsten or molybdenum
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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
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/30—Process control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/141—Processes of additive manufacturing using only solid materials
- B29C64/153—Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y80/00—Products made by additive manufacturing
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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
- C22C1/045—Alloys based on refractory metals
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
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- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/06—Metallic powder characterised by the shape of the particles
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- 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
- B22F2301/20—Refractory metals
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- 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
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Description
- 低減された欠陥、特に亀裂頻度
- 改善された破壊靭性
- 改善された延性
- 改善された密度
- 閉孔性
本発明によるものではないサンプルについては、ふるい分級<40マイクロメートルの球状化したMo粉末を使用した。
本発明によるサンプルについては、ふるい分級40μm未満の、溶融相によって球状化した粉末を使用した(サンプル番号2、3及び4)。粉末の化学的及び物理的特性は、表1に示されている。これらの粉末の加工は、モリブデンの体積増加についての典型的なパラメータで、800℃の製造スペース温度で行った。組織特性評価及び密度測定用のサンプルは、10mm×10mm×10mmの寸法を有していた。曲げサンプルは、35mm×8mm×8mmのサイズを有していた。
2 レーザーミラー
3 ドクターブレード
4 粉末供給物
5 ベースプレート
6 粉末貯蔵容器
7 製造スペース
8 部材
Claims (20)
- 少なくとも以下のステップ:
モリブデン、モリブデン基合金、タングステン、タングステン基合金、及びモリブデン-タングステン基合金からなる群から選択される少なくとも1つの材料を含む出発粉末を提供するステップと、
レーザー又は電子ビームによって前記出発粉末の粒子を層状に溶け合わせるステップと、
を含む、立体構造を有する部材(8)を製造するための付加製造方法であって、
前記出発粉末は、少なくとも1つの元素をさらに含み、
前記少なくとも1つの元素は、
前記材料がモリブデンまたはモリブデン基合金の場合は、MoO2及びMoO3の少なくとも一方に対して、
前記材料がタングステンまたはタングステン基合金の場合は、WO2及びWO3の少なくとも一方に対して、並びに
前記材料がモリブデン-タングステン基合金の場合は、MoO2、MoO3、WO2、及びWO3からなる群から選択される少なくとも1つの酸化物に対して、
少なくとも≧1500℃の温度範囲において還元的に作用し、かつ、前記出発粉末において少なくとも部分的な非酸化形態で存在する、
付加製造方法。 - 前記出発粉末における前記少なくとも1つの元素のうちの少なくとも1つは、部分的に溶解して、モリブデンリッチ又はタングステンリッチ相中に存在する、請求項1に記載の付加製造方法。
- 前記少なくとも1つの元素のうちの少なくとも1つは、金属元素である、請求項1または2に記載の付加製造方法。
- 前記少なくとも1つの元素のうちの少なくとも1つは、周期表の第2、3又は4族の元素である、請求項1~3のいずれか1項に記載の付加製造方法。
- 前記部材(8)は、TiO 2 、ZrO 2 又はHfO 2 を含有する、請求項1~4のいずれか1項に記載の付加製造方法。
- 前記部材(8)中の前記少なくとも1つの元素の含有率は、非酸化形態及び酸化形態で、0.05原子%~20原子%の範囲にある、請求項1~5のいずれか1項に記載の付加製造方法。
- 前記部材(8)中の炭素含有率は、0.05原子%~20原子%の範囲である、請求項1~6のいずれか1項に記載の付加製造方法。
- 前記部材(8)中の炭素は、少なくとも部分的に炭化物の形態で存在する、請求項7に記載の付加製造方法。
- モリブデン含有率、タングステン含有率、又は、モリブデンおよびタングステンの総含有率は、60原子%超である、請求項1~8のいずれか1項に記載の付加製造方法。
- 前記部材(8)が、10000平方マイクロメートル未満の平均結晶粒面積を有する結晶粒組織を有する、請求項1~9のいずれか1項に記載の付加製造方法。
- 前記部材(8)が、1マイクロメートル未満の炭化物粒子、窒化物粒子又はホウ化物粒子を含む、請求項1~10のいずれか1項に記載の付加製造方法。
- 前記部材(8)中の酸化形態の前記少なくとも1つの元素が、5マイクロメートル未満の平均サイズを有する酸化物析出物の形態で存在する、請求項1~11のいずれか1項に記載の付加製造方法。
- 前記出発粉末中で、前記少なくとも1つの元素の原子%での合計が、前記出発粉末の原子%での酸素含有率の1.5倍以上である、請求項1~12のいずれか1項に記載の付加製造方法。
- モリブデン、モリブデン基合金、タングステン、タングステン基合金及びモリブデン-タングステン基合金を含む群から選択される少なくとも1つの材料からの粒子を有し、前記粒子が、造粒及び溶融相の少なくとも一方によって製造されている付加製造用粉末であって、
前記粉末が、さらに、少なくとも1つの元素を有し、
前記少なくとも1つの元素は、
前記材料がモリブデンまたはモリブデン基合金の場合は、MoO2及びMoO3の少なくとも一方に対して、
前記材料がタングステンまたはタングステン基合金の場合は、WO2及びWO3の少なくとも一方に対して、並びに
前記材料がモリブデン-タングステン基合金の場合は、MoO2、MoO3、WO2及びWO3の群の少なくとも1つの酸化物に対して、
少なくとも≧1500℃の温度範囲において還元的に作用する還元元素であり、
前記少なくとも1つの元素のうちの少なくとも1つが、少なくとも部分的な非酸化形態で存在することを特徴とする、
付加製造用粉末。 - 前記粉末中の前記還元元素又は前記還元元素のうちの少なくとも1つが、モリブデンリッチ又はタングステンリッチ相に部分的に溶解している、請求項14に記載の付加製造用粉末。
- 前記少なくとも1つの元素のうちの少なくとも1つは、金属元素である、請求項14または15に記載の付加製造用粉末。
- 前記少なくとも1つの元素のうちの少なくとも1つは、周期表の第2、3又は4族の元素である、請求項14~16のいずれか1項に記載の付加製造用粉末。
- 前記少なくとも1つの元素の含有率は、0.05原子%~20原子%の範囲にある、請求項14~17のいずれか1項に記載の付加製造用粉末。
- モリブデン含有率、タングステン含有率、又は、モリブデンおよびタングステンの総含有率は、60原子%超である、請求項14~18のいずれか1項に記載の付加製造用粉末。
- 前記粉末中で、全ての前記還元元素の原子%での合計が、前記粉末の原子%での酸素含有率の1.5倍以上である、請求項14~19のいずれか1項に記載の付加製造用粉末。
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