JP3110512B2 - High strength and high toughness magnesium alloy material - Google Patents
High strength and high toughness magnesium alloy materialInfo
- Publication number
- JP3110512B2 JP3110512B2 JP03261262A JP26126291A JP3110512B2 JP 3110512 B2 JP3110512 B2 JP 3110512B2 JP 03261262 A JP03261262 A JP 03261262A JP 26126291 A JP26126291 A JP 26126291A JP 3110512 B2 JP3110512 B2 JP 3110512B2
- Authority
- JP
- Japan
- Prior art keywords
- crystalline
- amorphous
- magnesium alloy
- surface layer
- strength
- 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.)
- Expired - Fee Related
Links
- 239000000956 alloy Substances 0.000 title claims description 16
- 229910000861 Mg alloy Inorganic materials 0.000 title claims description 13
- 239000002344 surface layer Substances 0.000 claims description 15
- 238000005266 casting Methods 0.000 claims description 9
- 239000010410 layer Substances 0.000 claims description 4
- 239000011777 magnesium Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 239000006104 solid solution Substances 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 3
- 229910052684 Cerium Inorganic materials 0.000 claims description 2
- 229910001122 Mischmetal Inorganic materials 0.000 claims description 2
- 229910052746 lanthanum Inorganic materials 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 229910052723 transition metal Inorganic materials 0.000 claims description 2
- 229910052727 yttrium Inorganic materials 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 239000000463 material Substances 0.000 description 12
- 229910045601 alloy Inorganic materials 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 238000004512 die casting Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000879 optical micrograph Methods 0.000 description 2
- 238000007712 rapid solidification Methods 0.000 description 2
- 229910018137 Al-Zn Inorganic materials 0.000 description 1
- 229910018573 Al—Zn Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000002178 crystalline material Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 102220253765 rs141230910 Human genes 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
Landscapes
- Continuous Casting (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明は、高強度高靭性マグネシ
ウム合金材料に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high strength and high toughness magnesium alloy material.
【0002】[0002]
【従来の技術】従来のマグネシウム基合金には、Mg−
Al系、Mg−Al−Zn系、Mg−Th−Zr系、M
g−Th−Zn−Zr系、Mg−Zn−Zr系、Mg−
Zn−Zr−RE(希土類元素)系等の成分系の合金が
知られており、その材料特性に応じて、例えば、航空
機、車輛等の軽量構造部材として、あるいは電池用材
料、犠牲電極等として広範囲に使用されている。そし
て、近年では非晶質相を含む高力マグネシウム合金も提
案されている(特開平3−10041号公報参照)。こ
れらの合金は、その組織が結晶質、非晶質又は結晶質と
非晶質の混相に大別することができ、全体として均一な
相構成よりなるものである。2. Description of the Related Art Conventional magnesium-based alloys include Mg-
Al-based, Mg-Al-Zn-based, Mg-Th-Zr-based, M
g-Th-Zn-Zr system, Mg-Zn-Zr system, Mg-
Component alloys such as Zn-Zr-RE (rare earth elements) are known, and depending on their material properties, for example, as lightweight structural members for aircraft, vehicles, etc., or as battery materials, sacrificial electrodes, etc. Widely used. In recent years, a high-strength magnesium alloy containing an amorphous phase has also been proposed (see JP-A-3-10041). These alloys can be roughly classified into crystalline, amorphous, or a mixed phase of crystalline and amorphous, and have a uniform phase structure as a whole.
【0003】[0003]
【発明が解決しようとする課題】従来の合金では、機械
的性質や物理的性質など優れた性質をもたせるために
は、全体の組織を所定の性質を示すものとする必要があ
るが、組織制御が難しい場合が多い。例えば、非晶質を
得ることを目的とし急冷凝固を行っても、十分な冷却速
度が及ぶ範囲は限られており、従来の非晶質単相合金で
は非晶質を形成できなかった部分は、粗大な化合物が析
出するなど好ましくない組織となる。In a conventional alloy, in order to provide excellent properties such as mechanical properties and physical properties, it is necessary to make the entire structure exhibit a predetermined property. Is often difficult. For example, even if rapid solidification is performed for the purpose of obtaining an amorphous phase, the range over which a sufficient cooling rate can be reached is limited, and portions where an amorphous phase cannot be formed with a conventional amorphous single-phase alloy are: And an unfavorable structure such as precipitation of a coarse compound.
【0004】又、一般に従来の合金では、非晶質のもの
は高強度であるが伸びが少なく、結晶質は伸びが大きく
強度は低いという機械的性質を示す。そこで本発明で
は、材料を複層組織とすることで、非晶質の高強度と結
晶質の大きな伸びを兼ね備える、優れた機械的性質を示
す高強度高靭性マグネシウム合金材料を提供することを
目的とする。In general, conventional alloys exhibit mechanical properties such that amorphous ones have high strength but low elongation, and crystalline materials have high elongation and low strength. In view of the above, an object of the present invention is to provide a high-strength and high-toughness magnesium alloy material exhibiting excellent mechanical properties, having both amorphous high strength and crystalline large elongation by forming the material into a multilayer structure. And
【0005】[0005]
【課題を解決するための手段】本発明は、組成式:Mg
100-x-yTxQy(但し、TはCu、Ni、Znの中から
選ばれる少なくとも1つ以上の遷移金属元素であり、Q
はY、La、Ce、およびミッシュメタルの中から選ば
れる少なくとも1つ以上の希土類元素であり、xおよび
yは原子パーセントで0.5≦x≦15、0.5≦y≦
15)で表されるマグネシウム合金であり、鋳造品の断
面組織が表面層と中心部で異なる複層組織を示し、該複
層組織は、表面層が非晶質で、中心部が非晶質と結晶
質の混相、表面層が非晶質と結晶質の混相で、中心部
が結晶質、表面層が過飽和固溶体で、中心部が複相の
結晶質のいずれかであることを特徴とする高強度高靭性
マグネシウム合金材料である。According to the present invention, there is provided a composition comprising:
100-xy T x Q y (where T is at least one or more transition metal elements selected from Cu, Ni, and Zn;
Is at least one or more rare earth elements selected from Y, La, Ce, and misch metal, and x and y are 0.5 ≦ x ≦ 15, 0.5 ≦ y ≦
A magnesium alloy represented by 15), casting the cross-sectional structure is shown a multilayer structure having different surface layer and the central portion, said plurality
The layer structure is such that the surface layer is amorphous and the center is amorphous and crystalline.
Mixed phase, the surface layer is an amorphous and crystalline mixed phase.
Is crystalline, the surface layer is a supersaturated solid solution, and the center is
A high-strength, high-toughness magnesium alloy material characterized by being crystalline .
【0006】そして、かかる材料の製造法としては、上
記組成の合金溶湯を金型鋳造法、特にダイカストの如き
高圧鋳造法により急冷凝固させることによって鋳造品と
して形成する。あるいは双ロール法によって急冷凝固さ
せて形成する方法もある。[0006] As a method for producing such a material, a molten alloy having the above composition is rapidly solidified by a die casting method, particularly a high-pressure casting method such as die casting to form a cast product. Alternatively, there is a method of forming by rapid solidification by a twin roll method.
【0007】表面層の厚さは鋳造品の大きさによるが、
5〜100μmの範囲が適当で、目的に応じて急冷速度
をコントロールし、表面層の厚さをコントロールする。[0007] The thickness of the surface layer depends on the size of the casting,
The range of 5 to 100 μm is appropriate. The quenching rate is controlled according to the purpose, and the thickness of the surface layer is controlled.
【0008】[0008]
【作用】本発明においては、冷却速度が異なる表面と内
部では形成される組織も異なり、表面層は大きな速度で
冷却されるため非常に高強度の非晶質あるいは非晶質と
結晶質の混相または過飽和固溶体となり強度に大きく寄
与する。一方、中心部の比較的小さな結晶粒を持つ通常
組織は高靭性であるために伸び等に寄与する。したがっ
て、鋳造品全体としてみれば、高強度であり、かつ良好
な靭性を示す材料である。According to the present invention, organizations vary the cooling rate is formed at the surface and inside the different surface layer mixed phase of amorphous or amorphous and crystalline extremely high strength because it is cooled at a greater rate Or it becomes a supersaturated solid solution and greatly contributes to strength. On the other hand, a normal structure having relatively small crystal grains in the center has high toughness and thus contributes to elongation and the like. Therefore, the cast product as a whole is a material having high strength and good toughness.
【0009】さらに非晶質の持つ耐食性、耐摩耗性など
の機能を、鋳造品表面の冷却面に形成された非晶質層に
付与することができる。但し、組成が特許請求の範囲に
おいて規定した範囲を外されると、合金材料の組織は、
前記本発明の特徴である複層組織とはならず、機械的性
質は劣る。Further, the functions of the amorphous material, such as corrosion resistance and abrasion resistance, can be imparted to the amorphous layer formed on the cooling surface of the surface of the casting. However, when the composition is out of the range specified in the claims, the structure of the alloy material is:
It does not have a multi-layer structure, which is a feature of the present invention, and has poor mechanical properties.
【0010】又、前記特徴の組織を得るためには、冷却
速度が大きい金型鋳造法、特にダイカスト等の高圧鋳造
法が適している。In order to obtain the structure having the above characteristics, a die casting method having a high cooling rate, particularly a high pressure casting method such as die casting is suitable.
【0011】[0011]
【実施例】高周波溶解炉によってAr雰囲気中母合金を
溶製し、次いで0.2MPaの真空中にて銅製鋳型に
0.3MPaの噴出ガス圧にて鋳込み、直径3mm、長
さ50mmの丸棒を得た。表1に上記により得られた材
料の引張試験の結果を示すように、本発明による合金材
料を比較例として挙げた市販のマグネシウム合金材料
(AZ91)と比較すると、本発明材料の方が従来のマ
グネシウム合金材料よりも高強度であることがわかる。EXAMPLE A master alloy was melted in an Ar atmosphere by a high-frequency melting furnace, and then cast into a copper mold under a gas pressure of 0.3 MPa in a vacuum of 0.2 MPa to obtain a round bar having a diameter of 3 mm and a length of 50 mm. I got As shown in Table 1, the results of the tensile tests of the materials obtained as described above show that when the alloy material according to the present invention is compared with a commercially available magnesium alloy material (AZ91) listed as a comparative example, the material of the present invention is more conventional. It can be seen that the strength is higher than that of the magnesium alloy material.
【0012】[0012]
【表1】 [Table 1]
【0013】図1、図2に本発明によるマグネシウム合
金(Mg90Cu5Y5)材料の断面組織を示す。図1は表
面層の組織であり、過飽和固溶体を形成している。また
図2は同じ鋳造品の中心部の組織であり、比較的細かい
が通常の鋳造組織となっている。FIGS. 1 and 2 show sectional structures of a magnesium alloy (Mg 90 Cu 5 Y 5 ) material according to the present invention. FIG. 1 shows the structure of the surface layer, which forms a supersaturated solid solution. FIG. 2 shows the structure of the central part of the same cast product, which has a relatively fine but normal casting structure.
【0014】図3は、本発明によるマグネシウム合金で
あるMg92Cu4Y4の、鋳造したままの直径3mmのも
のと、機械加工により表面層を削り落とした直径2mm
および直径1.5mmのものについての、引張強さと断
面積比(直径3mmを1とする)の関係を表わしたもの
である。図3より、表面層が無くなると強度が低下する
ことがわかる。FIG. 3 shows a magnesium alloy Mg 92 Cu 4 Y 4 according to the present invention having a diameter of 3 mm as cast and a diameter of 2 mm obtained by cutting off a surface layer by machining.
It shows the relationship between the tensile strength and the cross-sectional area ratio (3 mm in diameter is 1) for those having a diameter of 1.5 mm. FIG. 3 shows that the strength decreases when the surface layer disappears.
【0015】[0015]
【発明の効果】本発明によれば、高強度と高靭性とを兼
ね備えたマグネシウム合金の鋳造材を生産性よく提供す
ることができる。According to the present invention, a cast material of a magnesium alloy having both high strength and high toughness can be provided with high productivity.
【図1】本発明による鋳造材料の表面層の断面の金属組
織を示す光学顕微鏡写真である。FIG. 1 is an optical micrograph showing a metal structure of a cross section of a surface layer of a casting material according to the present invention.
【図2】本発明による鋳造材料の中心部の断面の金属組
織を示す光学顕微鏡写真である。FIG. 2 is an optical micrograph showing a metal structure of a cross section of a central portion of a casting material according to the present invention.
【図3】引張強さと断面積比の関係を示すグラフであ
る。FIG. 3 is a graph showing the relationship between tensile strength and cross-sectional area ratio.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 増本 健 宮城県仙台市青葉区上杉3丁目8番22号 (72)発明者 井上 明久 宮城県仙台市青葉区川内無番地川内住宅 11−806 (72)発明者 佐藤 智 宮城県仙台市太白区八木山南3丁目15番 5号 (72)発明者 柴田 利介 宮城県仙台市青葉区米ケ袋1丁目5番12 号 (72)発明者 西山 信行 宮城県仙台市青葉区土樋1丁目6番15号 (56)参考文献 特開 平3−10041(JP,A) 特開 昭61−193745(JP,A) (58)調査した分野(Int.Cl.7,DB名) C22C 23/00 - 23/04 C22F 1/06 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Takeshi Masumoto 3-8-22 Uesugi, Aoba-ku, Sendai City, Miyagi Prefecture (72) Inventor Akihisa Inoue Kawachi Mudachi Kawachi Housing 11-806 (72) Inventor: Satoshi Sato 3-15-5, Yagiyama-Minami, Taihaku-ku, Sendai-city, Miyagi Prefecture (72) Inventor: Risuke Shibata 1-5-112, Yonegabukuro, Aoba-ku, Sendai, Miyagi Prefecture (72) Inventor: Nobuyuki Nishiyama, Sendai, Miyagi Prefecture (6) References JP-A-3-10041 (JP, A) JP-A-61-193745 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) C22C 23/00-23/04 C22F 1/06
Claims (1)
はCu、Ni、Znの中から選ばれる少なくとも1つ以
上の遷移金属元素であり、QはY、La、Ce、および
ミッシュメタルの中から選ばれる少なくとも1つ以上の
希土類元素であり、xおよびyは原子パーセントで0.
5≦x≦15、0.5≦y≦15)で表されるマグネシ
ウム合金であり、鋳造品の断面組織が表面層と中心部で
異なる複層組織を示し、該複層組織は、表面層が非晶
質で、中心部が非晶質と結晶質の混相、表面層が非晶
質と結晶質の混相で、中心部が結晶質、表面層が過飽
和固溶体で、中心部が複相の結晶質のいずれかであるこ
とを特徴とする高強度高靭性マグネシウム合金材料。A composition formula: Mg 100-xy T x Q y (where T
Is at least one or more transition metal elements selected from Cu, Ni, and Zn; Q is at least one or more rare earth elements selected from Y, La, Ce, and misch metal; y is 0 in atomic percent.
5 ≦ x ≦ 15,0.5 a magnesium alloy represented by ≦ y ≦ 15), casting the cross-sectional structure is shown a multilayer structure having different surface layer and the central portion, said plurality layer tissue surface layer Is amorphous
, With a mixed phase of amorphous and crystalline in the center and amorphous in the surface layer
Mixed phase of crystalline and crystalline, crystalline in center, oversaturated surface layer
A high-strength and high-toughness magnesium alloy material characterized by being a solid-solid solution and having a central part of any of a plurality of crystalline phases .
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP03261262A JP3110512B2 (en) | 1991-09-13 | 1991-09-13 | High strength and high toughness magnesium alloy material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP03261262A JP3110512B2 (en) | 1991-09-13 | 1991-09-13 | High strength and high toughness magnesium alloy material |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0570880A JPH0570880A (en) | 1993-03-23 |
JP3110512B2 true JP3110512B2 (en) | 2000-11-20 |
Family
ID=17359384
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JP03261262A Expired - Fee Related JP3110512B2 (en) | 1991-09-13 | 1991-09-13 | High strength and high toughness magnesium alloy material |
Country Status (1)
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JP (1) | JP3110512B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6346958B2 (en) | 2000-01-24 | 2002-02-12 | Fuji Xerox Co., Ltd. | Method for detecting quantity of laser scanning positional deviation on photosensitive body, correcting method thereof and laser color image forming apparatus |
US6366336B1 (en) | 1998-02-13 | 2002-04-02 | Nec Corporation | Image forming apparatus and method |
CN102375231B (en) * | 2010-08-05 | 2014-07-30 | 佳能株式会社 | Light scanning apparatus and image forming apparatus |
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JP2807374B2 (en) * | 1992-04-30 | 1998-10-08 | ワイケイケイ株式会社 | High-strength magnesium-based alloy and its solidified material |
JPH10506150A (en) | 1994-08-01 | 1998-06-16 | フランツ ヘーマン、 | Processes selected for non-equilibrium lightweight alloys and products |
GB9502238D0 (en) * | 1995-02-06 | 1995-03-29 | Alcan Int Ltd | Magnesium alloys |
US6726783B1 (en) * | 2000-05-18 | 2004-04-27 | Energy Conversion Devices, Inc. | High storage capacity alloys having excellent kinetics and a long cycle life |
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JP5948124B2 (en) * | 2012-04-18 | 2016-07-06 | 日本発條株式会社 | Magnesium alloy member and manufacturing method thereof |
CN104328320B (en) * | 2014-11-28 | 2017-01-04 | 重庆市科学技术研究院 | A kind of high-strength high-plasticity magnesium alloy |
CN108315617B (en) * | 2018-01-22 | 2020-04-28 | 陕西科技大学 | Two-step preparation method of controllable-dissolution magnesium-rich alloy |
CN117660819B (en) * | 2024-01-25 | 2024-05-07 | 龙南龙钇重稀土科技股份有限公司 | Gao Jiangke magnesium-dissolving alloy and preparation method thereof |
-
1991
- 1991-09-13 JP JP03261262A patent/JP3110512B2/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6366336B1 (en) | 1998-02-13 | 2002-04-02 | Nec Corporation | Image forming apparatus and method |
US6346958B2 (en) | 2000-01-24 | 2002-02-12 | Fuji Xerox Co., Ltd. | Method for detecting quantity of laser scanning positional deviation on photosensitive body, correcting method thereof and laser color image forming apparatus |
CN102375231B (en) * | 2010-08-05 | 2014-07-30 | 佳能株式会社 | Light scanning apparatus and image forming apparatus |
Also Published As
Publication number | Publication date |
---|---|
JPH0570880A (en) | 1993-03-23 |
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