JP4771958B2 - 超微細サブミクロン粒子チタニウムまたはチタニウム合金製品を製造する方法 - Google Patents
超微細サブミクロン粒子チタニウムまたはチタニウム合金製品を製造する方法 Download PDFInfo
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- JP4771958B2 JP4771958B2 JP2006541730A JP2006541730A JP4771958B2 JP 4771958 B2 JP4771958 B2 JP 4771958B2 JP 2006541730 A JP2006541730 A JP 2006541730A JP 2006541730 A JP2006541730 A JP 2006541730A JP 4771958 B2 JP4771958 B2 JP 4771958B2
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/14—Both compacting and sintering simultaneously
- B22F3/15—Hot isostatic pressing
- B22F3/156—Hot isostatic pressing by a pressure medium in liquid or powder form
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- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/05—Metallic powder characterised by the size or surface area of the particles
- B22F1/054—Nanosized particles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
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- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/05—Metallic powder characterised by the size or surface area of the particles
- B22F1/054—Nanosized particles
- B22F1/056—Submicron particles having a size above 100 nm up to 300 nm
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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
- B22F1/07—Metallic powder characterised by particles having a nanoscale microstructure
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- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
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- 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
- C22C1/0458—Alloys based on titanium, zirconium or hafnium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
- C22F1/18—High-melting or refractory metals or alloys based thereon
- C22F1/183—High-melting or refractory metals or alloys based thereon of titanium or alloys based thereon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
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- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
- B22F2009/041—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling by mechanical alloying, e.g. blending, milling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
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- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
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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
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
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Description
り小さなチタニウムおよびチタニウム合金製品を成形する方法を提供することが望まれている。
本発明は、好ましくは、低温ミル加工(またはクライオミリング)し、圧密化することによってチタニウムまたはチタニウム合金製品を成形し、そうすることで粒子径を非常に小さくし、それと同時に均一性を改良した微細構造の材料を製造することによって達成される、厳密な機械的変形を利用する。
て、高強度で安定な超微細サブミクロン粒子径材料粉末が製造される。クライオミリング加工された粉末がHIP加工によって再び圧密化された後の得られたナノ結晶性粒子径は、均一であり、サブミクロンである。一度クライオミリング加工された粉末が圧密化されると、押出しまたは引き抜き加工され、航空宇宙用締結部材のような高強度チタニウムおよびチタニウム合金の構成品および製品の製造に使用することができる種々の形状にしてもよい。
図1を参照すると、超微細サブミクロン粒子冶金学的構造を持つチタニウムまたはチタニウム合金製品を製造する論理フローチャートが、一般的に、10として示されている。加工は、ステップ12において、粗い粒子チタニウムまたはチタニウム合金原料粉末を、
高エネルギー低温アトライタ型ボールミル装置へ導入することによって始まる。先に列挙したチタニウムまたはチタニウム合金材料粉末は、当技術分野で周知の任意のチタニウムまたはチタニウム合金材料で構成されていてよい。商業的に純粋な(CP)および2成分系チタニウム合金、たとえば、Ti−6Al−4VおよびTi−5Al−2.5Snの2つの好ましい組成物を含む、β−Ti−Moおよびα−Ti−Alが、本発明では、特に挙げられる。
Claims (10)
- 超微細サブミクロン粒子チタニウムまたはチタニウム合金製品を製造する方法であって、
第1粒子径を持つ、粗い粒子状チタニウムまたはチタニウム合金材料を提供するステップと、
該粗い粒子状チタニウムまたはチタニウム合金材料を液体窒素、液体アルゴンまたは液体ヘリウムを用いて冷却してミル加工し、前記第1粒子径より小さい第2粒子径を持つ超微細サブミクロン粒子材料とするステップと、
該超微細サブミクロン粒子チタニウムまたはチタニウム合金材料をガス抜きするステップと、
該超微細サブミクロン粒子材料を緻密化し、緻密化された超微粒子材料を成形するステップと、
該緻密化された超微細サブミクロン粒子チタニウムまたはチタニウム合金材料から製品を成形するステップと、
を含む方法。 - 前記超微細サブミクロンの第2粒子径の材料が、ナノ結晶性の範囲内にある、請求項1記載の方法。
- 前記超微細サブミクロン粒子材料を緻密化して緻密化超微細サブミクロン粒子材料を成形するステップが、該超微細サブミクロン粒子材料を熱間静圧圧縮成形し、緻密化超微細サブミクロン粒子材料を成形するステップを含む、請求項1記載の方法。
- 前記超微細サブミクロン粒子材料を緻密化して緻密化超微細サブミクロン粒子材料を成形するステップが、該超微細サブミクロン粒子材料をセラコン型鍛造圧密化し、緻密化超微細サブミクロン粒子材料を成形するステップを含む、請求項1記載の方法。
- 前記チタニウム合金材料が、β−Ti−Moおよびα−Ti−Alのような2成分系チタニウム組成物からなる群から選択される、請求項1記載の方法。
- 前記ミル加工が、
前記チタニウムまたはチタニウム合金材料をミル加工装置の撹拌チャンバーに導入するステップと、
該チタニウムまたはチタニウム合金材料を、前記粗い粒子状チタニウムまたはチタニウム合金材料に機械的変形を与え、該チタニウムまたはチタニウム合金材料に関し超微細サブミクロン粒子構造を成形するために充分な所定の時間、ミル加工手段と接触させるステップと、
該超微細サブミクロン粒子チタニウムまたはチタニウム合金材料を、出口を通してまたは他の方法で前記撹拌チャンバーから取り出すステップとを含む、請求項1記載の方法。 - 前記超微細サブミクロン粒子チタニウムまたはチタニウム合金材料から製品を機械的に成形するステップが、該超微細サブミクロン粒子チタニウムまたはチタニウム合金材料から製品を冷間加工するステップを含む、請求項6記載の方法。
- ミル加工が、ステアリン酸添加物とともにミル加工することを含む、請求項1記載の方法。
- 前記緻密化された超微細サブミクロン粒子チタニウムまたはチタニウム合金材料から製品を成形するステップが、
前記超微細サブミクロン粒子チタニウムまたはチタニウム合金材料を機械的成形型の空洞内に導入するステップと、
該超微細サブミクロン粒子チタニウムまたはチタニウム合金材料を前記機械的成形型の所定の位置に設けられたシェア装置を用いて切断するステップと、
切断した超微細サブミクロン粒子チタニウムまたはチタニウム合金材料を前記機械的成形型から取り出すステップとを含む、請求項5記載の方法。 - さらに、前記切断された超微細サブミクロン粒子チタニウムまたはチタニウム合金材料に対して、所定の時間エイジングを実行することを含む、請求項9記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/707,173 US7241328B2 (en) | 2003-11-25 | 2003-11-25 | Method for preparing ultra-fine, submicron grain titanium and titanium-alloy articles and articles prepared thereby |
US10/707,173 | 2003-11-25 | ||
PCT/US2004/039631 WO2005051579A2 (en) | 2003-11-25 | 2004-11-24 | Method for preparing ultra-fine, submicron grain titanium and titanium-alloy articles and articles prepared thereby |
Publications (3)
Publication Number | Publication Date |
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JP2007515551A JP2007515551A (ja) | 2007-06-14 |
JP2007515551A5 JP2007515551A5 (ja) | 2007-12-06 |
JP4771958B2 true JP4771958B2 (ja) | 2011-09-14 |
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JP2006541730A Expired - Fee Related JP4771958B2 (ja) | 2003-11-25 | 2004-11-24 | 超微細サブミクロン粒子チタニウムまたはチタニウム合金製品を製造する方法 |
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US (2) | US7241328B2 (ja) |
EP (1) | EP1687112A2 (ja) |
JP (1) | JP4771958B2 (ja) |
WO (1) | WO2005051579A2 (ja) |
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US20050109158A1 (en) | 2005-05-26 |
JP2007515551A (ja) | 2007-06-14 |
US7785530B2 (en) | 2010-08-31 |
US20080089802A1 (en) | 2008-04-17 |
WO2005051579A2 (en) | 2005-06-09 |
EP1687112A2 (en) | 2006-08-09 |
WO2005051579A3 (en) | 2006-01-12 |
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