JPH03111538A - Hyper-eutectic al-si series-alloy composite and its manufacture - Google Patents
Hyper-eutectic al-si series-alloy composite and its manufactureInfo
- Publication number
- JPH03111538A JPH03111538A JP24986689A JP24986689A JPH03111538A JP H03111538 A JPH03111538 A JP H03111538A JP 24986689 A JP24986689 A JP 24986689A JP 24986689 A JP24986689 A JP 24986689A JP H03111538 A JPH03111538 A JP H03111538A
- Authority
- JP
- Japan
- Prior art keywords
- alloy
- eutectic
- hyper
- series
- sic grains
- 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.)
- Granted
Links
- 239000000956 alloy Substances 0.000 title claims abstract description 35
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 32
- 239000002131 composite material Substances 0.000 title claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 239000011159 matrix material Substances 0.000 claims abstract description 14
- 230000005496 eutectics Effects 0.000 claims abstract description 4
- 239000002245 particle Substances 0.000 claims description 28
- 229910000676 Si alloy Inorganic materials 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 3
- 229910021364 Al-Si alloy Inorganic materials 0.000 claims 2
- 238000003756 stirring Methods 0.000 abstract description 9
- 229910052751 metal Inorganic materials 0.000 abstract description 7
- 239000002184 metal Substances 0.000 abstract description 7
- 229910018125 Al-Si Inorganic materials 0.000 abstract 4
- 229910018520 Al—Si Inorganic materials 0.000 abstract 4
- 230000001131 transforming effect Effects 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 1
- 238000007712 rapid solidification Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 239000000843 powder Substances 0.000 description 6
- 239000013078 crystal Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 238000012937 correction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000013528 metallic particle Substances 0.000 description 2
- 238000010587 phase diagram Methods 0.000 description 2
- 239000007790 solid phase Substances 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000005551 mechanical alloying Methods 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- 239000011156 metal matrix composite Substances 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
Landscapes
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Abstract
Description
【発明の詳細な説明】
ａ、 産業上の利用分野
本発明は過共晶Ａ １−Ｓｉ系合金をマトリックスに、
ＳｉＣ粒子を複合材として添加してなる金属基複合材料
と、その製造方法に関する。[Detailed description of the invention] a. Industrial application field The present invention uses a hypereutectic A 1-Si alloy as a matrix,
The present invention relates to a metal matrix composite material in which SiC particles are added as a composite material, and a method for producing the same.
ｂ、 従来の技術
マトリックスとする合金材料を粉末化し、これと非金属
粒子や繊維を混合し、加圧と押し出しにより合金粉末を
接合し、複合材料を製造する方法がある（粉末冶金法）
。b. Conventional technology There is a method of manufacturing a composite material by pulverizing an alloy material used as a matrix, mixing it with non-metallic particles or fibers, and joining the alloy powder by pressure and extrusion (powder metallurgy method).
.
またマトリックスとする合金材料を粉末化し、これと非
金属粒子とを混合し、これらを機械式に練り合わせて、
粉末中に前記粒子を練り入れ複合材料を製造する方法が
ある（メカニカルアロイング法）。In addition, the alloy material used as the matrix is powdered, mixed with non-metal particles, and mechanically kneaded together.
There is a method of manufacturing a composite material by kneading the particles into powder (mechanical alloying method).
さらにマトリックスとする合金材料を加熱して半溶融状
態とし、これに非金属粒子や繊維を添加して、機械式の
撹拌を与えることで複合材料を製造する方法がある（コ
ンポキャスト法）。Furthermore, there is a method of manufacturing a composite material by heating an alloy material used as a matrix to a semi-molten state, adding non-metallic particles or fibers to this, and applying mechanical stirring (compocasting method).
Ｃ８発明が解決しようとする課題
前記従来技術のうち、合金粉末を使用する場合において
、この合金粉末の製造には大がかりな製造装置が必要で
あり、従ってコストも高くなる。C8 Problems to be Solved by the Invention Among the above-mentioned conventional techniques, when alloy powder is used, a large-scale manufacturing apparatus is required to manufacture the alloy powder, and therefore the cost becomes high.
また合金粉末を製造素材として使用する場合、工程が多
くなり好ましくない。Moreover, when alloy powder is used as a manufacturing material, the number of steps increases, which is not preferable.
さらにマトリックスとする合金粉末は固相であるため、
添加される材料、たとえばＳｉＣ粒子などの間の反応は
殆どなく、したがって両者の密着強度は弱い。Furthermore, since the alloy powder used as the matrix is in a solid phase,
There is almost no reaction between the added materials, such as SiC particles, and therefore the adhesion strength between the two is weak.
本発明は前記事情に鑑み、特に複合材とマトリックス合
金との間の密着強度を高めた複合材料とその製造方法を
提供することを目的とする。In view of the above circumstances, it is an object of the present invention to provide a composite material in which the adhesion strength between the composite material and the matrix alloy is particularly increased, and a method for manufacturing the same.
ｄ、 課題を解決するための手段
前記目的に添い、本発明はＡ １−５ｉ系合金を全溶融
状態に溶融し、これに平均粒子径０．１〜２０μ蔭のＳ
ｉＣ粒子を添加したあと、温度５７０〜６９０’Ｃの部
分凝固状態で撹拌を与えて反応させ、鋳込んでなる過共
晶Ａ ｅ−５ｉ系合金複合材料と、その製造方法とする
ことによって前記課題を解決した。d. Means for Solving the Problems In accordance with the above objects, the present invention involves melting an A1-5i alloy to a completely molten state, and adding S to this with an average particle diameter of 0.1 to 20 μm.
After adding iC particles, stirring is applied in a partially solidified state at a temperature of 570 to 690'C to cause a reaction, and the hypereutectic A e-5i alloy composite material and its manufacturing method are obtained by casting. Solved the problem.
以下、本発明の実施例について図面を参照しながら詳細
に説明する。Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
第２図はＡ ｊ！−Ｓｉ系合金の状態図で、Ｓｉの含有
量が１１．７ｗｔ％、温度５６０°Ｃに共晶点が存在す
る。Figure 2 shows A j! - In the phase diagram of the Si-based alloy, the eutectic point exists at a Si content of 11.7 wt% and a temperature of 560°C.
すなわち、Ｓｌの含有量が１．１．７ｗｔ％を超えると
過共晶合金となり、溶融状態から冷却してゆくと、初晶
としてＳｉ結晶が晶出する。That is, when the content of Sl exceeds 1.1.7 wt%, it becomes a hypereutectic alloy, and when it is cooled from a molten state, Si crystals are crystallized as primary crystals.
本発明では、溶融状態にある、この過共晶Ａｊ！−ｓｉ
系合金を用いて、そのａｆ −１５〜２５−１％Ｓｉ系
合金をマトリックスとし、これに平均粒径が０．１〜２
０μ盾のＳｉＣ粒子を添加し、・撹拌によって複合化し
たあと、冷却してＳｉＣ粒子をＡ ｊ！−５ｉ系合金中
に分散せしめてなる複合材料である。In the present invention, this hypereutectic Aj! is in a molten state. -si
The af -15~25-1% Si type alloy is used as a matrix, and the average grain size is 0.1~2.
0 μ shield SiC particles are added and mixed by stirring, then cooled and the SiC particles are A j! It is a composite material made by dispersing it in a -5i alloy.
まず具体的にはＡｆ ２０ｗｔ％Ｓｉ合金を、第１図
に示すように溶融炉内に設置したルツボ１内で加熱熔融
する。この合金を８００℃の全溶融状態（温度６９０’
Ｃ以上）としたあと、この溶湯に平均粒子径３μｍのＳ
ｉＣ粒子を、１５−ｔ％の割合で添加し、撹拌棒２によ
って低速回転（１０〜１００ｒ、ｐ、ｍ）による撹拌を
加える。First, specifically, an Af 20wt%Si alloy is heated and melted in a crucible 1 placed in a melting furnace as shown in FIG. This alloy was heated to a fully molten state at 800°C (temperature 690'
C or higher), then S with an average particle size of 3 μm is added to this molten metal.
iC particles are added at a rate of 15-t% and stirred by a stirring bar 2 with low speed rotation (10-100 r, p, m).
ＳｉＣ粒子が溶湯によって充分に加熱されたあと、撹拌
速度を３００〜１０．００Ｏｒ、ｐ、ｓ＋まで高める。After the SiC particles are sufficiently heated by the molten metal, the stirring speed is increased to 300 to 10.00 Or, p, s+.
この撹拌操作は固相（Ｓｉ結晶）を晶出させて複合化の
効率をよくするために、−旦、溶湯を冷却して部分凝固
状態（温度５７０〜６９０°Ｃ）とするためのもので、
鋳込み時まで継続して撹拌する。This stirring operation is to first cool the molten metal to a partially solidified state (temperature 570 to 690°C) in order to crystallize the solid phase (Si crystals) and improve the efficiency of composite formation. ,
Continue stirring until pouring.
過共晶Ａ ｆｆ１−５ｉ系合金は、通常、初晶ＳｉとＡ
ｆ−Ｓｉの共晶からなる組織を呈する。そして溶湯から
晶出してくる初晶Ｓｔは、添加したＳＩＣ粒子が有する
遊離Ｃとその表面層で反応してＳｉＣを形成し、初晶内
部にＳｉＣ粒子を容易に取り込む、またＳｉＣ粒子が前
記のように微粒子である場合は、溶融状態のＡＮとも表
面層で反応してＡｎ！ｎｃｓ（一部Ａ２□Ｃ４も含む）
を形成し、Ａｌ中へも容易に取り込まれる。Hypereutectic A ff1-5i alloys usually consist of primary Si and A
It exhibits a structure consisting of f-Si eutectic. The primary St crystals crystallized from the molten metal react with the free C possessed by the added SIC particles on its surface layer to form SiC, and the SiC particles are easily incorporated into the primary crystals. In the case of fine particles like this, they react with molten AN in the surface layer and An! ncs (including some A2□C4)
It forms and is easily incorporated into Al.
このように過共晶Ａ ｆ−５ｉ系合金をマトリックスと
して、これに微細なＳＩＣ粒子を添加して複合化する場
合、互に相性がよ（、ＣｕやＮｉ等の金属でＳｉＣ粒子
をコーティングしなくとも簡単に濡れて良好な分散を示
し、マトリックス合金と粒子との密着強度の強い複合材
料が得られる。In this way, when a hypereutectic A f-5i alloy is used as a matrix and fine SIC particles are added to form a composite, they are compatible with each other (coating the SiC particles with metals such as Cu and Ni). At the very least, it is possible to obtain a composite material that is easily wetted, exhibits good dispersion, and has strong adhesion strength between the matrix alloy and the particles.
前記反応が充分おこなわれたあと、鋳込みを容易にする
ため、再び全溶融状１！（温度６９０°Ｃ以上）に加熱
し、前記ルツボ１内のストッパー３を引きあげて、下方
の湯口４から、鋳型５内に溶湯を鋳込み、急冷凝固させ
る。After the above reaction has been sufficiently carried out, in order to facilitate casting, the entire molten state 1! The crucible 1 is heated to a temperature of 690° C. or higher, and the stopper 3 in the crucible 1 is pulled up, and the molten metal is poured into the mold 5 through the lower sprue 4 and rapidly solidified.
なお、前記Ａ １．−Ｓｉ系合金でＳｉ含有量が２５ｗ
ｔ％を越えると、合金自体が脆くなる。また１５ｗｔ％
未満では所期の効果かえられない。In addition, the above A1. -Si-based alloy with Si content of 25w
If it exceeds t%, the alloy itself becomes brittle. Also 15wt%
If the amount is less than that, the desired effect cannot be achieved.
さらに前記ＳｉＣ粒子の粒子径が２０μ■を越えるもの
を添加して複合化すると・、製造した複合材料の強度や
靭性が低下するので好ましくない。また粒子径が０．１
未満の粒子を用いた場合には、撹拌法による複合化が難
しく、コストも高くなる。Furthermore, it is not preferable to add SiC particles having a particle size exceeding 20 .mu.m to form a composite, since the strength and toughness of the manufactured composite material will decrease. Also, the particle size is 0.1
If less than 100 particles are used, it will be difficult to form a composite using a stirring method, and the cost will be high.
また、ＳｉＣ粒子の添加量は、複合材料として要求され
る物性とその程度によって適宜、選定する。Further, the amount of SiC particles to be added is appropriately selected depending on the physical properties required for the composite material and their degree.
ｅ、 発明の効果
本発明によれば、マトリックス成分の９０％を越えるＡ
２とＳｔとの両方と、ＳｉＣ粒子が反応するため、複合
化後の密着強度の高い複合材料かえられる。e. Effect of the invention According to the present invention, more than 90% of the matrix components are A.
Since the SiC particles react with both 2 and St, a composite material with high adhesion strength after compositing can be obtained.
また、ＳｉＣ粒子自体の硬度もＨＶ２０００〜３０００
と非常に高いのでマトリックス合金の硬度を高め、耐摩
耗性を改善した複合材料となる。In addition, the hardness of the SiC particles themselves is HV2000-3000.
The hardness of the matrix alloy is increased, resulting in a composite material with improved wear resistance.
さらに５〜６μｍ以下の粒径のＳｉＣ粒子を添加した場
合、強度をより高めた合金とすることができる。Furthermore, when SiC particles having a particle size of 5 to 6 μm or less are added, an alloy with even higher strength can be obtained.
また、本発明の方法は過共晶Ａ １−Ｓｔ系合金の特性
を利用し、
比較的簡単な操作によって、
高性
能の複合材料かえられる。Furthermore, the method of the present invention utilizes the properties of hypereutectic A1-St alloys, and can produce high-performance composite materials through relatively simple operations.
４、4,
第 図は本発明に係る複合材料を製造する装置の説明図、 第２図はＡｌ ｉ 系合金の状態図であ る。 １・・・ルツボ、 ・・・撹拌棒。 特 許 出 願 人 鈴木自動車工業株式会社 （ほか２名） 派 手 続 主甫 正 （Ｉ： （自発） １゜ 事件の表示 平成 １ 年特許願第２４９８６６号 ３゜ 補正をする者 名称 （２０Ｂ）鈴木自動車工業株式会社 明細書の ［発明の詳細な説明］ の欄。 補正の内容 １） 明細書第６頁第１０行〜第１１行に ［９０％を越える］ とあるのを削除する。 No. The figure is an explanatory diagram of an apparatus for manufacturing a composite material according to the present invention, Figure 2 shows Al i This is a phase diagram of the alloy Ru. 1...crucible, ... Stirring rod. Special permission Out wish Man Suzuki Automobile Industry Co., Ltd. (2 others) sect hand Continued Lord Fu Positive (I: (spontaneous) 1゜ Display of incidents 1999 Patent Application No. 249866 3゜ person who makes corrections name (20B) Suzuki Automobile Industry Co., Ltd. statement of statement [Detailed description of the invention] column. Contents of correction 1) On page 6 of the specification, lines 10 to 11 [Over 90%] Delete that.
Claims (1)
とし、これに平均粒径０．１〜２０μｍのＳｉＣ粒子を
添加してなる遇共晶Ａｌ−Ｓｉ系合金複合材料。 ２）Ａｌ−１５〜２５ｗｔ％Ｓｉ系合金を全溶融状態に
溶融し、これに平均粒子径０．１〜２０μｍのＳｉＣ粒
子を添加したあと、温度５７０〜６９０℃の部分凝固状
態で撹拌を与えて反応させ、鋳込むことを特徴とする過
共晶Ａｌ−Ｓｉ系合金複合材料の製造方法。[Scope of Claims] 1) A eutectic Al-Si alloy composite material comprising an Al-15 to 25 wt% Si alloy as a matrix and SiC particles having an average particle size of 0.1 to 20 μm added thereto. 2) Al-15 to 25 wt% Si-based alloy is melted to a fully molten state, SiC particles with an average particle size of 0.1 to 20 μm are added thereto, and then stirred in a partially solidified state at a temperature of 570 to 690°C. 1. A method for producing a hypereutectic Al-Si alloy composite material, which comprises reacting and casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24986689A JP2864391B2 (en) | 1989-09-26 | 1989-09-26 | Hypereutectic Al-Si alloy composite material and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24986689A JP2864391B2 (en) | 1989-09-26 | 1989-09-26 | Hypereutectic Al-Si alloy composite material and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03111538A true JPH03111538A (en) | 1991-05-13 |
| JP2864391B2 JP2864391B2 (en) | 1999-03-03 |
Family
ID=17199357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24986689A Expired - Lifetime JP2864391B2 (en) | 1989-09-26 | 1989-09-26 | Hypereutectic Al-Si alloy composite material and method for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2864391B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103160702A (en) * | 2013-03-19 | 2013-06-19 | 山东大学 | Method for preparing silicon carbide particle reinforced aluminum matrix composite material |
| CN109943755A (en) * | 2019-04-19 | 2019-06-28 | 中国兵器科学研究院宁波分院 | A kind of preparation method of aluminum matrix composite used for electronic packaging |
-
1989
- 1989-09-26 JP JP24986689A patent/JP2864391B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103160702A (en) * | 2013-03-19 | 2013-06-19 | 山东大学 | Method for preparing silicon carbide particle reinforced aluminum matrix composite material |
| CN109943755A (en) * | 2019-04-19 | 2019-06-28 | 中国兵器科学研究院宁波分院 | A kind of preparation method of aluminum matrix composite used for electronic packaging |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2864391B2 (en) | 1999-03-03 |
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