WO2008018901A3 - Method of consolidating precipitation-hardenable alloys to form consolidated articles with ultra-fine grain microstructures - Google Patents

Method of consolidating precipitation-hardenable alloys to form consolidated articles with ultra-fine grain microstructures Download PDF

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Publication number
WO2008018901A3
WO2008018901A3 PCT/US2007/000732 US2007000732W WO2008018901A3 WO 2008018901 A3 WO2008018901 A3 WO 2008018901A3 US 2007000732 W US2007000732 W US 2007000732W WO 2008018901 A3 WO2008018901 A3 WO 2008018901A3
Authority
WO
WIPO (PCT)
Prior art keywords
consolidating
chips
precipitation
ultra
fine grain
Prior art date
Application number
PCT/US2007/000732
Other languages
French (fr)
Other versions
WO2008018901A2 (en
WO2008018901A8 (en
Inventor
M Ravi Shankar
Srinivasan Chandrasekar
Walter Dale Compton
Alexander H King
Kevin P Trumbley
Original Assignee
Purdue Research Foundation
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 Purdue Research Foundation filed Critical Purdue Research Foundation
Publication of WO2008018901A2 publication Critical patent/WO2008018901A2/en
Publication of WO2008018901A3 publication Critical patent/WO2008018901A3/en
Publication of WO2008018901A8 publication Critical patent/WO2008018901A8/en

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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
    • 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
    • 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
    • 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
    • B22F3/24—After-treatment of workpieces or articles
    • B22F2003/248—Thermal after-treatment
    • 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
    • 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
    • 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
    • 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
    • B22F2009/045—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling by other means than ball or jet milling
    • B22F2009/046—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling by other means than ball or jet milling by cutting
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Nanotechnology (AREA)
  • Powder Metallurgy (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)

Abstract

A method by which consolidated articles can be produced from nanocrystalline materials to have mechanical properties that can be improved through thermal treatment. The method entails machining a body to produce polycrystalline chips having nanocrystalline microstructures, and then consolidating the chips to form a consolidated article having mechanical properties that exceed that of the body from which the chips were formed. In particular, consolidation of nanocrystalline chips formed by machining a supersaturated solid-solution body causes precipitation of a fine dispersion of precipitates in the consolidated article, with the potential for certain properties to even improve during consolidation or subsequent thermal treatment of the consolidated article.
PCT/US2007/000732 2006-05-03 2007-01-11 Method of consolidating precipitation-hardenable alloys to form consolidated articles with ultra-fine grain microstructures WO2008018901A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/381,519 US20060278308A1 (en) 2000-10-28 2006-05-03 Method of consolidating precipitation-hardenable alloys to form consolidated articles with ultra-fine grain microstructures
US11/381,519 2006-05-03

Publications (3)

Publication Number Publication Date
WO2008018901A2 WO2008018901A2 (en) 2008-02-14
WO2008018901A3 true WO2008018901A3 (en) 2008-07-31
WO2008018901A8 WO2008018901A8 (en) 2009-07-09

Family

ID=39033432

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/000732 WO2008018901A2 (en) 2006-05-03 2007-01-11 Method of consolidating precipitation-hardenable alloys to form consolidated articles with ultra-fine grain microstructures

Country Status (2)

Country Link
US (1) US20060278308A1 (en)
WO (1) WO2008018901A2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120003114A1 (en) * 2005-10-27 2012-01-05 Ian Baker Nanostructured Mn-Al Permanent Magnets And Methods of Producing Same
US8999233B2 (en) 2005-10-27 2015-04-07 The Trustees Of Dartmouth College Nanostructured Mn-Al permanent magnets and methods of producing same
US20100218858A1 (en) * 2005-10-27 2010-09-02 Ian Baker Nanostructured mn-al permanent magnets and methods of producing same
US7617750B2 (en) * 2006-12-06 2009-11-17 Purdue Research Foundation Process of producing nanocrystalline bodies
KR101225122B1 (en) * 2009-09-07 2013-01-22 포항공과대학교 산학협력단 Method for producing nano-crystalline titanium alloy without severe deformation
ITMI20111019A1 (en) * 2011-06-07 2012-12-08 Ennio Corrado PROCEDURE FOR THE PREPARATION OF MANUFACTURED ARTICLES IN ALUMINUM OR ITS ALLOYS.
ITTO20130855A1 (en) * 2013-10-21 2015-04-22 Itt Italia Srl METHOD FOR OBTAINING BRAKE PADS AND ASSOCIATED BRAKE PAD
US10385622B2 (en) 2014-09-18 2019-08-20 Halliburton Energy Services, Inc. Precipitation hardened matrix drill bit
CN109732398B (en) * 2019-03-11 2020-02-21 广东工业大学 Ultra-precision cutting optimization control method and system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020150496A1 (en) * 2000-10-28 2002-10-17 Srinivasan Chandrasekar Method of forming nano-crystalline structures and product formed thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4362553A (en) * 1979-11-19 1982-12-07 Marko Materials, Inc. Tool steels which contain boron and have been processed using a rapid solidification process and method
US6120624A (en) * 1998-06-30 2000-09-19 Howmet Research Corporation Nickel base superalloy preweld heat treatment

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020150496A1 (en) * 2000-10-28 2002-10-17 Srinivasan Chandrasekar Method of forming nano-crystalline structures and product formed thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SHANKAR ET AL: "Microstructure and stability of nanocrystalline aluminum 6061 created by large strain machining", ACTA MATERIALIA, ELSEVIER, OXFORD, GB, vol. 53, no. 18, 1 October 2005 (2005-10-01), pages 4781 - 4793, XP005089848, ISSN: 1359-6454 *

Also Published As

Publication number Publication date
WO2008018901A2 (en) 2008-02-14
WO2008018901A8 (en) 2009-07-09
US20060278308A1 (en) 2006-12-14

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