KR930013190A - Al- Li합금의 초소성화 가공열처리 방법 - Google Patents

Al- Li합금의 초소성화 가공열처리 방법 Download PDF

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Publication number
KR930013190A
KR930013190A KR1019910024401A KR910024401A KR930013190A KR 930013190 A KR930013190 A KR 930013190A KR 1019910024401 A KR1019910024401 A KR 1019910024401A KR 910024401 A KR910024401 A KR 910024401A KR 930013190 A KR930013190 A KR 930013190A
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South Korea
Prior art keywords
alloy
heat treatment
present
rolling
ultra
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KR1019910024401A
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English (en)
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KR940008071B1 (ko
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문인기
박종우
유재은
Original Assignee
박원희
한국과학기술 연구원
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Priority to KR1019910024401A priority Critical patent/KR940008071B1/ko
Priority to GB9225215A priority patent/GB2262744B/en
Publication of KR930013190A publication Critical patent/KR930013190A/ko
Priority to US08/233,019 priority patent/US5456774A/en
Application granted granted Critical
Publication of KR940008071B1 publication Critical patent/KR940008071B1/ko

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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
    • 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
    • C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • C22F1/057—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with copper as the next major constituent
    • 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
    • C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S420/00—Alloys or metallic compositions
    • Y10S420/902—Superplastic

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  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Metal Rolling (AREA)

Abstract

본 발명은 경량고강도합금의 일종인 Al-Li합금의 초소성화를 위한 가공열처리 방법에 관한 것이다.
본 발명에서 초소성화 가공열처리 대상으로 하는 Al-Li합금의 조성은 Al-Cu-Li-Mg-Zr계로서 본 발명은 이같은 합금에 대하여 500~550℃에서 10~30시간동안 균질화처리한 다음 300~500℃의 온도에서 2~20m/분의 압연속도와 패스당 압하율 2~18%로 제어압연하여 Al-Li합금에 초소성특성을 부여하는 가공열처리 과정으로 이루어진다.
본 발명의 가공열처리 방법은 초소성 가공열처리 조건의 확대에 따른 작업성이 우수하면서 기존의 방법에 비해 빠른 변형속도에서 우수한 초소성특성을 나타내도록 하는 점에 있어서 장점이 있다.

Description

Al-Li합금의 초소성화 가공열처리 방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 가공열처리 공정을 보인 시간-온도 그래프,
제2도는 본 발명의 가공열처리 후 고온인장미세화된 결정립에 대한 조직확대사진,
제3도는 본 발명의 가공열처리 후 고온인장시 연신율-변형속도의 관계를 보인 그래프.

Claims (3)

  1. Cu 2-3.3%, Li 1.9-3.3%, Mg 0.2-1.2%, Zr 0.08-0.16%와 잔부 Al로 이루어진 Al-Li 합금을 500~550℃에서 10~30시간 균질화 처리한 다음 300~500℃의 온도에서 온간압연 하여 초소성특성을 부여함을 특징으로 하는 Al-Li합금의 초소성화 가공열처리 방법.
  2. 제1항에 있어서, 압연전 유지시간을 30~120분으로 함을 특징으로 하는 Al-Li합금의 초소성화 가공열처리 방법.
  3. 제1항에 있어서, 압연시 압연속도를 2-20m/분으로 하고 패스당 압하량을 2~18%로 함을 특징으로 하는 Al+Li합금의 초소성화 가공 열처리 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019910024401A 1991-12-26 1991-12-26 Al-Li합금의 초소성화 가공열처리 방법 KR940008071B1 (ko)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1019910024401A KR940008071B1 (ko) 1991-12-26 1991-12-26 Al-Li합금의 초소성화 가공열처리 방법
GB9225215A GB2262744B (en) 1991-12-26 1992-12-02 Thermo mechanical treatment method for providing superplasticity to al-li alloy
US08/233,019 US5456774A (en) 1991-12-26 1994-04-25 Thermomechanical treatment method for providing super-plasticity to Al-Li Alloy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910024401A KR940008071B1 (ko) 1991-12-26 1991-12-26 Al-Li합금의 초소성화 가공열처리 방법

Publications (2)

Publication Number Publication Date
KR930013190A true KR930013190A (ko) 1993-07-21
KR940008071B1 KR940008071B1 (ko) 1994-09-01

Family

ID=19326037

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910024401A KR940008071B1 (ko) 1991-12-26 1991-12-26 Al-Li합금의 초소성화 가공열처리 방법

Country Status (3)

Country Link
US (1) US5456774A (ko)
KR (1) KR940008071B1 (ko)
GB (1) GB2262744B (ko)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6171296B1 (en) 1998-04-28 2001-01-09 Microtherapeutics, Inc. Flow directed catheter

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4582544A (en) * 1983-03-31 1986-04-15 Alcan International Limited Production of metallic articles
FR2561260B1 (fr) * 1984-03-15 1992-07-17 Cegedur Alliages al-cu-li-mg a tres haute resistance mecanique specifique
FR2561264B1 (fr) * 1984-03-15 1986-06-27 Cegedur Procede d'obtention de produits en alliages al-li-mg-cu a ductilite et isotropie elevees
US4648913A (en) * 1984-03-29 1987-03-10 Aluminum Company Of America Aluminum-lithium alloys and method
US4816087A (en) * 1985-10-31 1989-03-28 Aluminum Company Of America Process for producing duplex mode recrystallized high strength aluminum-lithium alloy products with high fracture toughness and method of making the same
ES2014248B3 (es) * 1985-11-28 1990-07-01 Pechiney Rhenalu Procedimiento de desensibilizacion a la corrosion exfoliante con obtencion simultanea de una elevada resistencia mecanica y buena resistencia frente a los deterioros de aleaciones de aluminio que contienen litio.
DE68913561T2 (de) * 1988-01-28 1994-10-20 Aluminum Co Of America Aluminium-Lithium-Legierungen.
US4830682A (en) * 1988-05-25 1989-05-16 Reynolds Metals Company Process for producing aluminum-lithium alloys having improved superplastic properties

Also Published As

Publication number Publication date
GB2262744A (en) 1993-06-30
GB2262744B (en) 1995-01-04
US5456774A (en) 1995-10-10
KR940008071B1 (ko) 1994-09-01
GB9225215D0 (en) 1993-01-20

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