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GB2472544A - High thermal gradient casting with tight packing of directionally solidified casting - Google Patents

High thermal gradient casting with tight packing of directionally solidified casting Download PDF

Info

Publication number
GB2472544A
GB2472544A GB1019412A GB201019412A GB2472544A GB 2472544 A GB2472544 A GB 2472544A GB 1019412 A GB1019412 A GB 1019412A GB 201019412 A GB201019412 A GB 201019412A GB 2472544 A GB2472544 A GB 2472544A
Authority
GB
United Kingdom
Prior art keywords
casting
high thermal
thermal gradient
directionally solidified
tight packing
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Withdrawn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
GB1019412A
Other versions
GB201019412D0 (en
Inventor
Douglas G Konitzer
Joseph D Rigney
Laura J Carroll
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB201019412D0 publication Critical patent/GB201019412D0/en
Publication of GB2472544A publication Critical patent/GB2472544A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
    • B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
    • B22D27/045—Directionally solidified castings
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B11/00—Single-crystal growth by normal freezing or freezing under temperature gradient, e.g. Bridgman-Stockbarger method
    • C30B11/002—Crucibles or containers for supporting the melt
    • 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
    • C22C19/051—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
    • C22C19/057—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being less 10%
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B11/00—Single-crystal growth by normal freezing or freezing under temperature gradient, e.g. Bridgman-Stockbarger method
    • C30B11/003—Heating or cooling of the melt or the crystallised material
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
    • C30B29/10—Inorganic compounds or compositions
    • C30B29/52—Alloys
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B35/00—Apparatus not otherwise provided for, specially adapted for the growth, production or after-treatment of single crystals or of a homogeneous polycrystalline material with defined structure
    • C30B35/002—Crucibles or containers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2230/00—Manufacture
    • F05B2230/20—Manufacture essentially without removing material
    • F05B2230/21—Manufacture essentially without removing material by casting
    • F05B2230/211—Manufacture essentially without removing material by casting by precision casting, e.g. microfusing or investment casting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2253/00—Other material characteristics; Treatment of material
    • F05C2253/08—Crystalline
    • F05C2253/083—Directionally-solidified crystalline structure
    • F05C2253/0831—Directionally-solidified crystalline structure monocrystalline

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

Method for forming directionally solidified articles in tightly packed mold cavities withdrawn into liquid metal cooling bath. The withdrawal rate and the spacing between adjacent mold cavities cooperate to provide a high thermal gradient. The cast articles exhibit primary dendrite arm spacing of between about 6 to about 12 mils (about 150-300 microns).
GB1019412A 2008-05-30 2009-04-29 High thermal gradient casting with tight packing of directionally solidified casting Withdrawn GB2472544A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/129,867 US20090293994A1 (en) 2008-05-30 2008-05-30 High thermal gradient casting with tight packing of directionally solidified casting
PCT/US2009/042084 WO2009148726A1 (en) 2008-05-30 2009-04-29 High thermal gradient casting with tight packing of directionally solidified casting

Publications (2)

Publication Number Publication Date
GB201019412D0 GB201019412D0 (en) 2010-12-29
GB2472544A true GB2472544A (en) 2011-02-09

Family

ID=41152117

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1019412A Withdrawn GB2472544A (en) 2008-05-30 2009-04-29 High thermal gradient casting with tight packing of directionally solidified casting

Country Status (6)

Country Link
US (1) US20090293994A1 (en)
JP (1) JP2011523901A (en)
CA (1) CA2724387A1 (en)
DE (1) DE112009001167T5 (en)
GB (1) GB2472544A (en)
WO (1) WO2009148726A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110076180A1 (en) * 2009-09-30 2011-03-31 General Electric Company Nickel-Based Superalloys and Articles
US20110076181A1 (en) * 2009-09-30 2011-03-31 General Electric Company Nickel-Based Superalloys and Articles
US20110076182A1 (en) * 2009-09-30 2011-03-31 General Electric Company Nickel-Based Superalloys and Articles
FR2995235B1 (en) * 2012-09-11 2016-12-09 Snecma FOUNDRY MODEL
US20150231696A1 (en) * 2014-02-18 2015-08-20 General Electric Company Methods for directional solidification casting
CN110923513B (en) * 2019-12-06 2021-01-08 北京钢研高纳科技股份有限公司 Vacuum induction melting process of GH4720Li alloy, GH4720Li alloy and aviation parts

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3763926A (en) * 1971-09-15 1973-10-09 United Aircraft Corp Apparatus for casting of directionally solidified articles
EP0059550A2 (en) * 1981-02-27 1982-09-08 PCC Airfoils, Inc. Method of casting
US4969501A (en) * 1989-11-09 1990-11-13 Pcc Airfoils, Inc. Method and apparatus for use during casting
US5577547A (en) * 1994-04-28 1996-11-26 Precision Castparts Corp. Method of casting a metal article
EP0967036A2 (en) * 1998-06-26 1999-12-29 General Electric Company Unidirectionally solidified cast article and method of making
EP1153681A1 (en) * 2000-05-11 2001-11-14 PCC Airfoils, Inc. System for casting a metal article using a fluidized bed
US6651728B1 (en) * 2002-07-02 2003-11-25 Pcc Airfoils, Inc. Casting articles

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3763926A (en) * 1971-09-15 1973-10-09 United Aircraft Corp Apparatus for casting of directionally solidified articles
EP0059550A2 (en) * 1981-02-27 1982-09-08 PCC Airfoils, Inc. Method of casting
US4969501A (en) * 1989-11-09 1990-11-13 Pcc Airfoils, Inc. Method and apparatus for use during casting
US5577547A (en) * 1994-04-28 1996-11-26 Precision Castparts Corp. Method of casting a metal article
EP0967036A2 (en) * 1998-06-26 1999-12-29 General Electric Company Unidirectionally solidified cast article and method of making
EP1153681A1 (en) * 2000-05-11 2001-11-14 PCC Airfoils, Inc. System for casting a metal article using a fluidized bed
US6651728B1 (en) * 2002-07-02 2003-11-25 Pcc Airfoils, Inc. Casting articles

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Materials Science and Enineeering A: Structural Materials: Properties, Microstructure & Processing, Vol. 479, Nos. 1-2, 2008, pp. 356-364. *

Also Published As

Publication number Publication date
CA2724387A1 (en) 2009-12-10
JP2011523901A (en) 2011-08-25
US20090293994A1 (en) 2009-12-03
DE112009001167T5 (en) 2011-05-05
GB201019412D0 (en) 2010-12-29
WO2009148726A1 (en) 2009-12-10

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)