[go: up one dir, main page]

EP1548138A4 - Nano-crystal austenitic metal bulk material having high hardness, high strength and toughness , and method for production thereof - Google Patents

Nano-crystal austenitic metal bulk material having high hardness, high strength and toughness , and method for production thereof

Info

Publication number
EP1548138A4
EP1548138A4 EP03798565A EP03798565A EP1548138A4 EP 1548138 A4 EP1548138 A4 EP 1548138A4 EP 03798565 A EP03798565 A EP 03798565A EP 03798565 A EP03798565 A EP 03798565A EP 1548138 A4 EP1548138 A4 EP 1548138A4
Authority
EP
European Patent Office
Prior art keywords
nano
bulk material
crystal
metal
metal bulk
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.)
Withdrawn
Application number
EP03798565A
Other languages
German (de)
French (fr)
Japanese (ja)
Other versions
EP1548138A1 (en
Inventor
Harumatsu Miura
Nobuaki Miyao
Hidenori Ogawa
Kazuo Oda
Munehide Katsumura
Masaru Mizutani
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.)
Nano Technology Institute Inc
Original Assignee
Nano Technology Institute 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
Application filed by Nano Technology Institute Inc filed Critical Nano Technology Institute Inc
Publication of EP1548138A1 publication Critical patent/EP1548138A1/en
Publication of EP1548138A4 publication Critical patent/EP1548138A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • B22F3/006—Amorphous articles
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C14/00—Alloys based on titanium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/12—Alloys based on aluminium with copper as the next major constituent
    • 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
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • 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
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • 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
    • 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
    • C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C9/00—Alloys based on copper
    • C22C9/01—Alloys based on copper with aluminium as the next major constituent
    • 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
    • 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
    • B22F3/10—Sintering only
    • B22F2003/1032—Sintering only comprising a grain growth inhibitor
    • 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
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • 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
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10—Processes characterised by the sequence of their steps
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C2200/00—Crystalline structure
    • C22C2200/04—Nanocrystalline

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Powder Metallurgy (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)

Abstract

A nano-crystal metal bulk material which comprises an aggregate of metal nano crystal grains, wherein it further comprises an oxide, nitride, carbide, boride or the like of a metal or metalloid between the above nano crystal grains and/or inside of the grain as a substance inhibiting the growth of the crystal grain; and a method for producing the nano-crystal metal bulk material which comprises subjecting respective fine powders of the components of the nano-crystal metal bulk material to mechanical alloying (MA) by means of a ball mill or the like to prepare nano metal powders, and then subjecting the powders to a massing and forming treatment such as hot massing and forming, for example, spark plasma sintering, extruding or rolling, or explosion forming. The nano-crystal metal bulk material exhibits high hardness, high strength and toughness.
EP03798565A 2002-09-30 2003-09-30 Nano-crystal austenitic metal bulk material having high hardness, high strength and toughness , and method for production thereof Withdrawn EP1548138A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2002287950 2002-09-30
JP2002287950 2002-09-30
PCT/JP2003/012530 WO2004029313A1 (en) 2002-09-30 2003-09-30 Nano-crystal austenitic metal bulk material having high hardness, high strength and toughness , and method for production thereof

Publications (2)

Publication Number Publication Date
EP1548138A1 EP1548138A1 (en) 2005-06-29
EP1548138A4 true EP1548138A4 (en) 2007-07-18

Family

ID=32040626

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03798565A Withdrawn EP1548138A4 (en) 2002-09-30 2003-09-30 Nano-crystal austenitic metal bulk material having high hardness, high strength and toughness , and method for production thereof

Country Status (7)

Country Link
US (1) US20060127266A1 (en)
EP (1) EP1548138A4 (en)
CN (1) CN1685071A (en)
AU (1) AU2003266721A1 (en)
RU (1) RU2324576C2 (en)
UA (1) UA77578C2 (en)
WO (1) WO2004029313A1 (en)

Families Citing this family (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003002243A2 (en) 2001-06-27 2003-01-09 Remon Medical Technologies Ltd. Method and device for electrochemical formation of therapeutic species in vivo
US7615446B2 (en) * 2005-10-13 2009-11-10 Samsung Electronics Co., Ltd. Charge trap flash memory device, fabrication method thereof, and write/read operation control method thereof
CN100351409C (en) * 2005-12-30 2007-11-28 北京科技大学 Nanometer SiC/ Bi2Te3 base thermoelectric material preparation method
US8840660B2 (en) 2006-01-05 2014-09-23 Boston Scientific Scimed, Inc. Bioerodible endoprostheses and methods of making the same
US8089029B2 (en) 2006-02-01 2012-01-03 Boston Scientific Scimed, Inc. Bioabsorbable metal medical device and method of manufacture
US8048150B2 (en) 2006-04-12 2011-11-01 Boston Scientific Scimed, Inc. Endoprosthesis having a fiber meshwork disposed thereon
US8052743B2 (en) 2006-08-02 2011-11-08 Boston Scientific Scimed, Inc. Endoprosthesis with three-dimensional disintegration control
CA2663220A1 (en) 2006-09-15 2008-03-20 Boston Scientific Limited Medical devices and methods of making the same
EP2399616A1 (en) 2006-09-15 2011-12-28 Boston Scientific Scimed, Inc. Bioerodible endoprosthesis with biostable inorganic layers
JP2010503489A (en) 2006-09-15 2010-02-04 ボストン サイエンティフィック リミテッド Biodegradable endoprosthesis and method for producing the same
CA2663271A1 (en) 2006-09-15 2008-03-20 Boston Scientific Limited Bioerodible endoprostheses and methods of making the same
EP2068962B1 (en) 2006-09-18 2013-01-30 Boston Scientific Limited Endoprostheses
KR100841418B1 (en) 2006-11-29 2008-06-25 희성금속 주식회사 Preparation of Precious Metal Targets by Discharge Plasma Sintering
US8080055B2 (en) 2006-12-28 2011-12-20 Boston Scientific Scimed, Inc. Bioerodible endoprostheses and methods of making the same
CN100421787C (en) * 2007-03-23 2008-10-01 厦门大学 Platinum tetrahedral nanocrystal catalyst and its preparation method and application
US8052745B2 (en) 2007-09-13 2011-11-08 Boston Scientific Scimed, Inc. Endoprosthesis
US7998192B2 (en) 2008-05-09 2011-08-16 Boston Scientific Scimed, Inc. Endoprostheses
US8236046B2 (en) 2008-06-10 2012-08-07 Boston Scientific Scimed, Inc. Bioerodible endoprosthesis
US7985252B2 (en) 2008-07-30 2011-07-26 Boston Scientific Scimed, Inc. Bioerodible endoprosthesis
US8382824B2 (en) 2008-10-03 2013-02-26 Boston Scientific Scimed, Inc. Medical implant having NANO-crystal grains with barrier layers of metal nitrides or fluorides
RU2398027C1 (en) * 2008-12-29 2010-08-27 Государственное образовательное учреждение высшего профессионального образования "Кубанский государственный технологический университет" (ГОУВПО "КубГТУ") Procedure for production of nano-structured nickel-aluminium coating on steel with shape memory effect
US8267992B2 (en) 2009-03-02 2012-09-18 Boston Scientific Scimed, Inc. Self-buffering medical implants
JP5445750B2 (en) * 2009-07-28 2014-03-19 公立大学法人大阪府立大学 High temperature bearing formed of Ni3 (Si, Ti) intermetallic compound alloy and method for manufacturing the same
JP4766408B2 (en) 2009-09-25 2011-09-07 日本発條株式会社 Nanocrystalline titanium alloy and method for producing the same
RU2427451C2 (en) * 2009-11-16 2011-08-27 Федеральное Государственное Унитарное Предприятие "Центральный Научно-Исследовательский Институт Конструкционных Материалов "Прометей" (Фгуп "Цнии Км "Прометей") Method of producing nanocrystalline magnetic powder for fabricating wideband radar absorbent materials
WO2011119573A1 (en) 2010-03-23 2011-09-29 Boston Scientific Scimed, Inc. Surface treated bioerodible metal endoprostheses
RU2425166C1 (en) * 2010-06-03 2011-07-27 Государственное образовательное учреждение высшего профессионального образования "Пермский государственный технический университет" Procedure for production of mechanically alloyed nitrogen containing steel
US10234410B2 (en) 2012-03-12 2019-03-19 Massachusetts Institute Of Technology Stable binary nanocrystalline alloys and methods of identifying same
CN102618774B (en) * 2012-04-17 2014-03-12 江苏大学 Manufacturing method of metal matrix nanocomposites with high toughness
EP2956180B1 (en) 2013-02-15 2018-08-01 Boston Scientific Scimed, Inc. Bioerodible magnesium alloy microstructures for endoprostheses
JP6649876B2 (en) 2013-03-14 2020-02-19 マサチューセッツ インスティテュート オブ テクノロジー Sintered nanocrystalline alloy
KR102100370B1 (en) 2013-04-26 2020-04-14 삼성디스플레이 주식회사 Method for forming nano crystalline and manufacturing of organic light emitting display device including the same
CN103537688B (en) * 2013-10-11 2015-12-09 上海大学 A kind of nano-powder prepares the method for Fe-Al alloy
JP2017501756A (en) 2013-10-29 2017-01-19 ボストン サイエンティフィック サイムド，インコーポレイテッドＢｏｓｔｏｎ Ｓｃｉｅｎｔｉｆｉｃ Ｓｃｉｍｅｄ，Ｉｎｃ． Bioerodible magnesium alloy microstructure for internal prostheses
CN103572088B (en) * 2013-11-27 2015-09-09 山东建筑大学 Titanium-based porous sintered composite material with nanocrystalline structure and preparation method thereof
CN103817334B (en) * 2014-02-24 2015-09-30 重庆大学 A kind of Al-Zn composite and solid alloy preparation method thereof
CN103990792B (en) * 2014-03-28 2016-05-04 燕山大学 A kind of method of preparing particle strengthening metal-base nanometer composite material
CN104372241B (en) * 2014-10-31 2016-06-15 中山市恒翔不锈钢丸有限公司 A kind of shock proof alloy material and preparation method thereof
CN104630601A (en) * 2015-01-27 2015-05-20 安徽同盛环件股份有限公司 Preparation process of high temperature resistant alloy steel
CN107427603A (en) 2015-03-11 2017-12-01 波士顿科学国际有限公司 Bioerodible magnesium alloy micro-structural for interior prosthese
CN104910652B (en) * 2015-04-27 2017-07-28 昆山德泰新材料科技有限公司 A kind of bronze movable type pigment and preparation method thereof
US11644288B2 (en) 2015-09-17 2023-05-09 Massachusetts Institute Of Technology Nanocrystalline alloy penetrators
US11053562B2 (en) * 2015-10-30 2021-07-06 Hitachi, Ltd. Dispersion strengthened austenitic stainless steel article, method for manufacturing same and product made of same
KR101736636B1 (en) * 2015-12-23 2017-05-17 주식회사 포스코 HIHG-Mn STEEL PLATE HAVING EXCELLENT DAMPING PROPERTY AND METHOD FOR PRODUCING THE SAME
CN106001560B (en) * 2016-05-25 2018-08-28 北京理工大学 A kind of preparation method of nanocrystalline silver bullion body
JP2020518726A (en) * 2017-05-04 2020-06-25 マサチューセッツ インスティテュート オブ テクノロジー Iron-containing alloys, and related systems and methods
CN108218436B (en) * 2018-01-23 2021-05-07 中国航发北京航空材料研究院 A method for reducing the sintering temperature of ZrB2-SiC ceramic materials
CN108588530B (en) * 2018-05-07 2020-03-13 西安工业大学 Low-density heat-resistant iron-based alloy and preparation method thereof
CN109778085B (en) * 2019-03-14 2020-04-17 安徽智磁新材料科技有限公司 Amorphous alloy with good toughness and preparation method thereof
CN110153667B (en) * 2019-05-06 2022-04-05 浙江超亿消防装备有限公司 Automatic snatch assembly quality that fire control valve body moulds cap
CN110578082A (en) * 2019-06-20 2019-12-17 西安工业大学 A kind of high strength and high thermal conductivity iron-based alloy and preparation method thereof
CN112111684B (en) * 2020-10-10 2021-11-30 广东博杰特新材料科技有限公司 3D prints ternary boride Mo2NiB2Alloy powder and production process thereof
CN113621844A (en) * 2021-08-10 2021-11-09 湖南金天铝业高科技股份有限公司 Particle reinforced titanium-based composite material and preparation method thereof
CN116179879B (en) * 2022-12-14 2024-06-07 宁波伏尔肯科技股份有限公司 Preparation method of waste steel aluminum-based silicon carbide
CN116837251B (en) * 2023-06-13 2025-07-18 武汉大学 Medical high-strength low-elasticity titanium-zinc composite material with core-shell-gradient structure and preparation method and application thereof
CN119973103A (en) * 2025-03-03 2025-05-13 哈尔滨工业大学(深圳)(哈尔滨工业大学深圳科技创新研究院) Ultra-high strength pure metal and preparation method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1234894A1 (en) * 2001-02-27 2002-08-28 Hitachi, Ltd. Corrosion resistant, high strength alloy and a method for manufacturing the same
EP1555332A1 (en) * 2002-09-27 2005-07-20 Nano Technology Institute, Inc. Nano-crystal austenitic steel bulk material having ultra-hardness and toughness and excellent corrosion resistance, and method for production thereof

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE794959A (en) * 1972-02-04 1975-04-14
DE3714239C2 (en) * 1987-04-29 1996-05-15 Krupp Ag Hoesch Krupp Process for the production of a material with a structure of nanocrystalline structure
JPH05117716A (en) * 1991-09-03 1993-05-14 Hiroshi Kimura Production of functional material
RU2048582C1 (en) * 1992-12-18 1995-11-20 Совместное советско-британское предприятие "Росбри-Интернейшнл Лимитед" Sintered austenitic cast iron
DE4336694A1 (en) * 1993-10-27 1995-05-04 Inst Neue Mat Gemein Gmbh Process for the production of metal and ceramic sintered bodies and layers
JP2843900B2 (en) * 1995-07-07 1999-01-06 工業技術院長 Method for producing oxide-particle-dispersed metal-based composite material
JPH1088289A (en) * 1996-09-12 1998-04-07 Hitachi Ltd High Corrosion Resistance High Strength Cr-Mn Austenitic Sintered Steel, Its Manufacturing Method and Its Use
JPH1143748A (en) * 1997-07-23 1999-02-16 Hitachi Ltd High-strength austenitic sintered steel, its production method and its use
US6746508B1 (en) * 1999-10-22 2004-06-08 Chrysalis Technologies Incorporated Nanosized intermetallic powders
JP2001207202A (en) * 1999-11-19 2001-07-31 Shigeru Mashita Method for producing bulk metal material having high coercive force, bulk metal material produced thereby and target material
JP3645811B2 (en) * 2000-12-28 2005-05-11 住友石炭鉱業株式会社 Rotary table type electric pressure sintering machine
JP4975916B2 (en) * 2001-09-21 2012-07-11 株式会社日立製作所 High toughness and high strength ferritic steel and its manufacturing method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1234894A1 (en) * 2001-02-27 2002-08-28 Hitachi, Ltd. Corrosion resistant, high strength alloy and a method for manufacturing the same
EP1555332A1 (en) * 2002-09-27 2005-07-20 Nano Technology Institute, Inc. Nano-crystal austenitic steel bulk material having ultra-hardness and toughness and excellent corrosion resistance, and method for production thereof

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
MIURA H ET AL: "COMPOSITION DEPENDENCE OF MICROSTRUCTURE OF MECHANICALLY ALLOYED POWDERS AND THEIR COMPACTS OF HIGH NITROGEN CR-MN STEELS", MATERIALS TRANSACTIONS. JIM, SENDAI, JP, vol. 40, no. 9, September 1999 (1999-09-01), pages 907 - 910, XP009079823, ISSN: 0916-1821 *
See also references of WO2004029313A1 *

Also Published As

Publication number Publication date
AU2003266721A1 (en) 2004-04-19
UA77578C2 (en) 2006-12-15
EP1548138A1 (en) 2005-06-29
US20060127266A1 (en) 2006-06-15
RU2005109265A (en) 2006-02-20
WO2004029313A1 (en) 2004-04-08
CN1685071A (en) 2005-10-19
RU2324576C2 (en) 2008-05-20

Similar Documents

Publication Publication Date Title
EP1548138A4 (en) Nano-crystal austenitic metal bulk material having high hardness, high strength and toughness , and method for production thereof
EP1555332A4 (en) Nano-crystal austenitic steel bulk material having ultra-hardness and toughness and excellent corrosion resistance, and method for production thereof
JP6474389B2 (en) New manufacturing method of cemented carbide and product obtained thereby
JP2629151B2 (en) Compressed article and method for producing the same
UA95912C2 (en) Composite rotating tool, method for forming and method for producing rotating tool
US7771649B2 (en) Method of producing ultrafine crystalline TiN/TIB2 composite cermet
WO2005079209A3 (en) Nanocrystalline material layers using cold spray
EP1359130A1 (en) Cubic boron nitride sintered body and cutting tool
TW200513543A (en) Hot rolled steel sheet and method of producing the same
Rana et al. Microstructure and mechanical properties of nanocrystalline high strength Al–Mg–Si (AA6061) alloy by high energy ball milling and spark plasma sintering
Sheibani et al. Role of process control agent on synthesis and consolidation behavior of nano-crystalline copper produced by mechano-chemical route
EP1087026A1 (en) TICN-based cermet
EP3054029B1 (en) Sputtering target comprising tungsten carbide or titanium carbide
Borrell et al. Bulk TiCxN1− x–15% Co cermets obtained by direct spark plasma sintering of mechanochemical synthesized powders
AU2003251472A1 (en) Highly shock-resistant ceramic material
JP2003013169A (en) WC-Co based fine-grain cemented carbide with excellent oxidation resistance
JP2005281768A (en) Nanocrystal white cast iron powder having high hardness, tough nanocrystal white cast iron bulk material having high hardness and high strength and production method therefor
Farinha et al. Energetic materials for nanocrystalline stainless steel production
AU2003267920A1 (en) Process and plant for manufacturing fine iron and steel powders, fine iron and steel powders and use of powders manufactured by the process
JP2005281769A (en) High hardness high carbon nanocrystal iron alloy powder and bulk material and production method therefor
Klimova et al. Kinetics of recrystallization and grain growth in an ultra-fine grained CoCrFeNiMn-type high-entropy alloy
Yushioka et al. Preparation of high speed steel by HS-PM/SPS process
KR101573711B1 (en) Compressional and torsional severe plastic deformation method using restrictive ring
JP2009097081A (en) Cemented carbide and cutting tools and miniature drills
JP3292950B2 (en) Molybdenum nitride powder and method for producing the same

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20050324

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

DAX Request for extension of the european patent (deleted)
RIC1 Information provided on ipc code assigned before grant

Ipc: B22F 3/00 20060101AFI20070323BHEP

A4 Supplementary search report drawn up and despatched

Effective date: 20070615

17Q First examination report despatched

Effective date: 20071108

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20080520