KR960023162A - Ultra-light magnesium alloy with excellent workability and specific strength and manufacturing method - Google Patents

Ultra-light magnesium alloy with excellent workability and specific strength and manufacturing method Download PDF

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Publication number
KR960023162A
KR960023162A KR1019940033863A KR19940033863A KR960023162A KR 960023162 A KR960023162 A KR 960023162A KR 1019940033863 A KR1019940033863 A KR 1019940033863A KR 19940033863 A KR19940033863 A KR 19940033863A KR 960023162 A KR960023162 A KR 960023162A
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KR
South Korea
Prior art keywords
ultra
specific strength
manufacturing
alloy
magnesium alloy
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KR1019940033863A
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Korean (ko)
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KR0119555B1 (en
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김경현
이정무
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서상기
한국기계연구원
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Priority to KR1019940033863A priority Critical patent/KR0119555B1/en
Publication of KR960023162A publication Critical patent/KR960023162A/en
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Publication of KR0119555B1 publication Critical patent/KR0119555B1/en

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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C23/00—Alloys based on magnesium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/02—Making non-ferrous alloys by melting
    • 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
    • C22F1/02—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working in inert or controlled atmosphere or vacuum
    • 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
    • C22F1/06—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of magnesium or alloys based thereon

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

Abstract

본 발명은 Mg 합금에 관한 것으로 특히 비강도 및 냉간가공성이 우수한 극경량 Mg-Li-Al계 합금과 이의 제조방법에 관한 것이다.The present invention relates to an Mg alloy, and more particularly to an ultra-lightweight Mg-Li-Al-based alloy excellent in specific strength and cold workability and a method of manufacturing the same.

본 가공성과 비강도가 우수한 극경량 마그네슘합금은 중량%로 Li : 7∼10%, Al : 2∼4%, Mg : 나머지로 조성되고 그 제조방법은 Mg, Al을 용해로에 장입하여 10-4Torr의 진공도와 770±10℃의 온도로 Ar 분위기하에서 용해하는 단계와, 상기 용탕에 순 Li을 투입하여 용해하는 단계와, 상기 용해된 용탕을 700±5℃의 온도에서 주형에 주입하는 단계와, 상기 주조된 제품을 370±5℃에서 4시간동안 균질화 처리를 수행하는 단계와, 상기 균질화 처리된 제품을 370±5℃에서 50%의 입하율로 열간압연하는 단계로 이루어진다.The ultra-light magnesium alloy with excellent workability and specific strength is composed of Li: 7-10%, Al: 2-4%, Mg: remainder, and the manufacturing method is 10 -4 by charging Mg and Al into the melting furnace. Dissolving in an Ar atmosphere at a vacuum of Torr and a temperature of 770 ± 10 ° C., injecting pure Li into the melt, and injecting the melted melt into a mold at a temperature of 700 ± 5 ° C .; Performing a homogenization treatment for 4 hours at 370 ± 5 ℃ the cast product, and hot-rolled the homogenized product at a 370 ± 5 ℃ 50% acceptance rate.

Description

가공성과 비강도가 우수한 극경량 마그네슘합금 및 그 제조방법Ultra-light magnesium alloy with excellent workability and specific strength and manufacturing method

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 Mg-8%Li-4%Al 합금의 주조상태와 60% 냉간압연상태의 미세조직사진으로서 (a)는 주조상태의 조직사진, (b)는 압연된 상태의 조직사진,1 is a microstructure photograph of the cast state and 60% cold rolled state of Mg-8% Li-4% Al alloy, (a) is a texture photograph of the cast state, (b) is a tissue photograph of the rolled state,

제2도는 Mg-8%Li 합금에서 Al 첨가량에 따른 압연가공한계도 변화,2 shows the change of rolling limit according to the amount of Al added in the Mg-8% Li alloy,

제3도는 냉간압연율에 따른 경도 변화.3 is the hardness change according to the cold rolling rate.

Claims (2)

중량%로 Li : 7∼10%, Al : 2∼4%, Mg : 나머지로 조성되는 것을 특징으로 하는 냉간가공성과 비강도가 우수한 극경량 Mg-Li계 합금.Ultra-light Mg-Li alloy having excellent cold workability and specific strength, wherein the composition is composed of Li: 7 to 10%, Al: 2 to 4%, and Mg: remainder. Mg, Al을 용해로에 장입하여 10-4Torr의 진공도와 770±10℃의 온도로 Ar 분위기하에서 용해하는 단계와, 상기 용탕에 순 Li을 투입하여 용해하는 단계와, 상기 용해된 용탕을 700±5℃의 온도에서 주형에 주입하는 단계와, 상기 주조된 제품을 370±5℃에서 4시간동안 균질화 처리를 수행하는 단계와, 상기 균질화 처리된 제품을 370±5℃에서 50%의 입하율로 열간압연하는 단계로 이루어진 것을 특징으로 하는 냉간가공성과 비강도가 우수한 극경량 Mg-Li계 합금의 제조방법.Mg and Al were charged into a melting furnace to dissolve in an Ar atmosphere at a vacuum of 10 −4 Torr and a temperature of 770 ± 10 ° C., injecting pure Li into the molten metal, and dissolving the melted melt 700 ±. Injecting the mold into a mold at a temperature of 5 ° C., homogenizing the cast product at 370 ± 5 ° C. for 4 hours, and 50% acceptance rate of the homogenized product at 370 ± 5 ° C. Method for producing an ultra-lightweight Mg-Li alloy having excellent cold workability and specific strength, characterized in that the step of hot rolling. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940033863A 1994-12-13 1994-12-13 Making method of mg alloy and the same product KR0119555B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940033863A KR0119555B1 (en) 1994-12-13 1994-12-13 Making method of mg alloy and the same product

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940033863A KR0119555B1 (en) 1994-12-13 1994-12-13 Making method of mg alloy and the same product

Publications (2)

Publication Number Publication Date
KR960023162A true KR960023162A (en) 1996-07-18
KR0119555B1 KR0119555B1 (en) 1997-10-22

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Application Number Title Priority Date Filing Date
KR1019940033863A KR0119555B1 (en) 1994-12-13 1994-12-13 Making method of mg alloy and the same product

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101292191B1 (en) * 2011-03-21 2013-08-02 한국기계연구원 The method for preparation of Mg alloy sheet using different speed rolling and magnesium alloy sheet using the same

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KR0119555B1 (en) 1997-10-22

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