JPH10219310A - Capsule powder for producing in-situ composite material and preform body - Google Patents
Capsule powder for producing in-situ composite material and preform bodyInfo
- Publication number
- JPH10219310A JPH10219310A JP9031417A JP3141797A JPH10219310A JP H10219310 A JPH10219310 A JP H10219310A JP 9031417 A JP9031417 A JP 9031417A JP 3141797 A JP3141797 A JP 3141797A JP H10219310 A JPH10219310 A JP H10219310A
- Authority
- JP
- Japan
- Prior art keywords
- particles
- powder
- situ
- base material
- composite material
- 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
- 239000000843 powder Substances 0.000 title claims abstract description 100
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 74
- 239000002775 capsule Substances 0.000 title claims abstract description 62
- 239000002131 composite material Substances 0.000 title claims abstract description 45
- 239000002245 particle Substances 0.000 claims abstract description 112
- 239000000463 material Substances 0.000 claims abstract description 55
- 238000006243 chemical reaction Methods 0.000 claims abstract description 38
- 238000010438 heat treatment Methods 0.000 claims abstract description 22
- 229910052751 metal Inorganic materials 0.000 claims abstract description 22
- 239000002184 metal Substances 0.000 claims abstract description 22
- 229910052755 nonmetal Inorganic materials 0.000 claims abstract description 6
- 150000001875 compounds Chemical class 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 11
- 239000000654 additive Substances 0.000 claims description 8
- 230000000996 additive effect Effects 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 150000002736 metal compounds Chemical class 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 abstract description 17
- 239000012779 reinforcing material Substances 0.000 abstract description 16
- 238000005204 segregation Methods 0.000 abstract description 4
- 206010024769 Local reaction Diseases 0.000 abstract description 3
- 230000003014 reinforcing effect Effects 0.000 abstract 2
- 239000011159 matrix material Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 4
- 229910004298 SiO 2 Inorganic materials 0.000 description 4
- 238000005266 casting Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000000879 optical micrograph Methods 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 150000001247 metal acetylides Chemical class 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000007970 homogeneous dispersion Substances 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- DRLFMBDRBRZALE-UHFFFAOYSA-N melatonin Chemical compound COC1=CC=C2NC=C(CCNC(C)=O)C2=C1 DRLFMBDRBRZALE-UHFFFAOYSA-N 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000011863 silicon-based powder Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009718 spray deposition Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ｉｎ−ｓｉｔｕ複
合材製造用カプセル粉末及びプリフォーム体に係り、特
に、粒子分散型の耐熱・耐摩耗Ａｌ合金におけるｉｎ−
ｓｉｔｕ複合材製造用カプセル粉末及びプリフォーム体
に関するものである。[0001] The present invention relates to a capsule powder and a preform for producing an in-situ composite material, and more particularly to an in-situ heat- and abrasion-resistant aluminum alloy of a particle dispersion type.
The present invention relates to a capsule powder for producing a situ composite material and a preform.
【０００２】[0002]
【従来の技術】Ａｌ合金の弱点である耐熱強度および耐
摩耗性の向上を目的として、様々な方法による複合材化
によって強化が行われている。各種の複合材製造プロセ
スは大別して、鋳造法、粉末冶金法、スプレーフォーミ
ング法の３つに分類される。2. Description of the Related Art For the purpose of improving heat resistance and wear resistance, which are the weak points of Al alloys, reinforcement has been made by using composite materials by various methods. Various composite material manufacturing processes are roughly classified into three types: casting, powder metallurgy, and spray forming.
【０００３】中でも、鋳造法は、更に加圧鋳造法、溶湯
添加法、コンポキャスティング法、ＰＲＩＭＥＸ ＣＡ
ＳＴTM、ｉｎ−ｓｉｔｕ法の５つに細分される。[0003] Among them, the casting method further includes a pressure casting method, a molten metal addition method, a component casting method, and a PRIMEX CA.
ST ™ and in-situ method.
【０００４】特に、ｉｎ−ｓｉｔｕ法により作製された
ｉｎ−ｓｉｔｕ複合材は、材料内部（母材中）で反応さ
せた強化材（例えば、２Ｂ＋Ｔｉ＋Ａｌ→ＴｉＢ2 ＋Ａ
ｌ）により母材を複合強化するため、熱力学的に安定で
あり、また、母材中で強化材が反応生成するため、母相
と粒子の界面は汚染されておらず、強固な界面強度が得
られる。さらに、微細な粒子（強化材）が母材中に分散
されているため高特性の複合材を、低コストで得ること
ができる。[0004] In particular, an in-situ composite material produced by an in-situ method uses a reinforcing material (eg, 2B + Ti + Al → TiB 2 + A) reacted inside the material (in the base material).
The composite material strengthens the base material according to 1), so that it is thermodynamically stable. In addition, since the reinforcing material reacts in the base material, the interface between the matrix and the particles is not contaminated, and the solid interface strength is strong. Is obtained. Further, since fine particles (reinforcing material) are dispersed in the base material, a high-performance composite material can be obtained at low cost.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、ｉｎ−
ｓｉｔｕ反応の制御が難しく、強化材の偏析が起こり易
いという問題があった。However, the in-
There is a problem that it is difficult to control the situ reaction and segregation of the reinforcing material easily occurs.
【０００６】そこで本発明は、上記課題を解決し、ｉｎ
−ｓｉｔｕ反応の制御が容易で、強化材を均質分散する
ことができるｉｎ−ｓｉｔｕ複合材製造用カプセル粉末
及びプリフォーム体を提供することにある。Therefore, the present invention solves the above-mentioned problems, and
It is an object of the present invention to provide an in-situ composite material-producing capsule powder and a preform that can easily control a -situ reaction and can uniformly disperse a reinforcing material.
【０００７】[0007]
【課題を解決するための手段】上記課題を解決するため
に請求項１の発明は、母材中にｉｎ−ｓｉｔｕ反応させ
るべく添加する添加粒子において、上記添加粒子を母粒
子と子粒子とからなるカプセル粉末で形成したものであ
る。Means for Solving the Problems In order to solve the above-mentioned problems, the invention according to claim 1 is directed to an additive particle added for in-situ reaction in a base material. Formed of capsule powder.
【０００８】請求項２の発明は、上記母粒子が金属、非
金属、金属化合物、または非金属化合物からなる粉末で
あり、上記子粒子が上記母材と同じ金属または上記母材
中でｉｎ−ｓｉｔｕ反応しない金属からなる粉末である
請求項１記載のｉｎ−ｓｉｔｕ複合材製造用カプセル粉
末である。According to a second aspect of the present invention, the base particles are powders composed of a metal, a non-metal, a metal compound, or a non-metal compound, and the child particles are in the same metal as the base material or in-metal in the base material. The capsule powder for producing an in-situ composite material according to claim 1, which is a powder made of a metal that does not react in situ.
【０００９】請求項３の発明は、上記母材がＡｌまたは
Ａｌ合金である請求項１記載のｉｎ−ｓｉｔｕ複合材製
造用カプセル粉末である。The invention according to claim 3 is the capsule powder for producing an in-situ composite material according to claim 1, wherein the base material is Al or an Al alloy.
【００１０】請求項４の発明は、母材中に添加された添
加粒子を、ｉｎ−ｓｉｔｕ反応させて該母材を複合強化
するプリフォーム体において、上記添加粒子を母粒子と
子粒子とからなるカプセル粉末で形成し、該カプセル粉
末を上記母材粉末と配合し形成したものである。According to a fourth aspect of the present invention, there is provided a preform in which added particles added to a base material are subjected to in-situ reaction to compositely strengthen the base material, wherein the added particles are formed from base particles and child particles. The capsule powder is formed by mixing the capsule powder with the base material powder.
【００１１】請求項５の発明は、上記カプセル粉末にお
ける上記子粒子と上記母粒子の体積比（子粒子／母粒
子）がｉｎ−ｓｉｔｕ反応用加熱源に近付くにつれ増す
ように、該カプセル粉末を上記母材粉末中に傾斜配合し
たものである請求項４記載のｉｎ−ｓｉｔｕ複合材製造
用プリフォーム体である。[0011] The invention according to claim 5 is that the capsule powder is prepared such that the volume ratio (child particle / base particle) of the child particles and the mother particles in the capsule powder increases as the heating source for the in-situ reaction approaches. The preform body for producing an in-situ composite material according to claim 4, wherein the preform body is inclinedly compounded in the base material powder.
【００１２】請求項６の発明は、上記ｉｎ−ｓｉｔｕ反
応用加熱源が、レーザ、アークなどである請求項４記載
のｉｎ−ｓｉｔｕ複合材製造用プリフォーム体である。The invention according to claim 6 is the preform for producing an in-situ composite material according to claim 4, wherein the heating source for the in-situ reaction is a laser, an arc or the like.
【００１３】以上の構成によれば、母材中にｉｎ−ｓｉ
ｔｕ反応させるべく添加する添加粒子において、上記添
加粒子を母粒子と子粒子とからなるカプセル粉末で形成
したため、ｉｎ−ｓｉｔｕ反応の制御が容易で、強化材
を均質分散することができるｉｎ−ｓｉｔｕ複合材製造
用カプセル粉末を得ることができる。According to the above configuration, in-situ is contained in the base material.
In the additive particles to be added for the tu reaction, the additive particles are formed of capsule powder composed of base particles and child particles, so that the in-situ reaction can be easily controlled and the reinforcing material can be homogeneously dispersed. A capsule powder for producing a composite material can be obtained.
【００１４】[0014]
【発明の実施の形態】 以下、本発明の実施の形態を説
明する。Embodiments of the present invention will be described below.
【００１５】本発明のｉｎ−ｓｉｔｕ複合材製造用カプ
セル粉末の模式図を図１に示す。FIG. 1 is a schematic view of a capsule powder for producing an in-situ composite material of the present invention.
【００１６】図１に示すように、本発明のｉｎ−ｓｉｔ
ｕ複合材製造用カプセル粉末１は、母材（図示せず）中
に強化材（図示せず）をｉｎ−ｓｉｔｕ反応させて母材
を複合強化すべく、母材中に添加する強化用の添加粒子
を、母粒子２と、各母粒子２の周囲にカプセル化される
子粒子３で形成したものである。As shown in FIG. 1, the in-situ of the present invention
The u-composite manufacturing capsule powder 1 is used for strengthening to be added to a base material (not shown) in order to cause an in-situ reaction of a reinforcing material (not shown) in the base material (not shown) to compositely strengthen the base material. The additive particles are formed by base particles 2 and child particles 3 encapsulated around each base particle 2.
【００１７】母粒子２は、金属、非金属、金属化合物、
または非金属化合物の粉末からなるものであり、子粒子
３は、母材と同じ金属または母材中でｉｎ−ｓｉｔｕ反
応しない金属の粉末からなるものである。The base particles 2 are made of metal, nonmetal, metal compound,
Alternatively, the child particles 3 are made of a powder of a nonmetallic compound, and the child particles 3 are made of a powder of the same metal as the base material or a metal that does not undergo an in-situ reaction in the base material.
【００１８】添加粒子は、単一の母粒子２を用いて（例
えば、ＳｉＯ2 粉末のみを母粒子として）形成したカプ
セル粉末１に特に限定するものではなく、ｉｎ−ｓｉｔ
ｕ反応に応じて、異なる母粒子２を用いて（例えば、Ｓ
ｉＣ粉末とＴｉ粉末をそれぞれ母粒子として）形成した
カプセル粉末であってもよいことは言うまでもない。The additive particles are not particularly limited to the capsule powder 1 formed by using a single base particle 2 (for example, using only SiO 2 powder as a base particle).
u, using different base particles 2 (for example, S
Needless to say, it may be a capsule powder formed by forming iC powder and Ti powder as base particles.
【００１９】本発明のｉｎ−ｓｉｔｕ複合材製造用プリ
フォーム体の模式図を図２に示す。FIG. 2 is a schematic view of a preform for producing an in-situ composite material of the present invention.
【００２０】図２に示すように、ｉｎ−ｓｉｔｕ複合材
製造用プリフォーム体１１は、図１に示したカプセル粉
末１における子粒子３と母粒子２の体積比（子粒子／母
粒子）が、加熱源（ｉｎ−ｓｉｔｕ反応用加熱源）５に
近付くにつれ増すように、カプセル粉末１の子粒子３の
量を加熱源５からの距離に応じて変化させて母材粉末４
中に傾斜配合し、圧粉成形したものである。As shown in FIG. 2, the preform body 11 for producing an in-situ composite material has a volume ratio (child particle / base particle) of the child particles 3 and the mother particles 2 in the capsule powder 1 shown in FIG. The amount of the child particles 3 of the capsule powder 1 is changed according to the distance from the heating source 5 so as to increase as approaching the heating source (heating source for in-situ reaction) 5.
It is a compound that is graded into and compacted.
【００２１】加熱源５としては、特に限定するものでは
ないが、プリフォーム体１１全体を溶解するのではな
く、プリフォーム体１１を部分溶解することが可能なレ
ーザ、アーク等が好ましい。The heating source 5 is not particularly limited, but is preferably a laser or an arc capable of partially melting the preform 11 instead of melting the entire preform 11.
【００２２】次に、本発明の作用を説明する。Next, the operation of the present invention will be described.
【００２３】本発明で言うｉｎ−ｓｉｔｕ複合材とは、
Ａｌを主成分とした粒子分散強化合金において、その分
散粒子が母相Ａｌ中で化学反応によって晶出または析出
したものであり、したがって、それらの分散粒子はＡｌ
との濡れ性が良好である。このような反応は、溶融金属
中において溶質元素が熱力学的に安定な状態、即ちギブ
スの標準生成自由エネルギーが低い状態をとることによ
って起こる。The in-situ composite material referred to in the present invention is:
In a particle-dispersion strengthened alloy containing Al as a main component, the dispersed particles are those crystallized or precipitated by a chemical reaction in the parent phase Al.
With good wettability. Such a reaction occurs when the solute element in the molten metal is thermodynamically stable, that is, the Gibbs standard free energy of formation is low.
【００２４】酸化物の標準生成自由エネルギー温度図を
図３に示す。図中における横軸は温度を示し、縦軸はギ
ブスの標準生成自由エネルギーを示している。FIG. 3 shows a standard free energy temperature diagram of oxide formation. In the figure, the horizontal axis represents temperature, and the vertical axis represents the standard free energy of formation of Gibbs.
【００２５】図３に示すように、母相Ａｌ中にＡｌ2 Ｏ
3 （図中、標準生成自由エネルギー温度線Ｂで表され
る）を生成させたい場合には、Ａｌ中で溶融し、かつ、
標準生成自由エネルギーがＡｌ2 Ｏ3 よりも高い添加粒
子（例えば、標準生成自由エネルギー温度線Ａで表され
るＳｉＯ2 ）を母相Ａｌ中に添加すると、 ２Ａｌ＋ＳｉＯ2 →２／３・Ａｌ＋Ｓｉ＋２／３・Ａｌ2 Ｏ3 ＋ΔＱ… （ΔＱ：Ａｌ2 Ｏ3 生成に伴い発生するジュール熱）と
いうようなｉｎ−ｓｉｔｕ反応を起こす。As shown in FIG. 3, Al 2 O is contained in the matrix Al.
3 (in the figure, represented by a standard free energy temperature line B), it is necessary to melt in Al and
When added particles having a standard free energy of formation higher than that of Al 2 O 3 (for example, SiO 2 represented by a standard free energy temperature line A) are added to the matrix Al, 2Al + SiO 2 → 2/3 · Al + Si + 2/3 An in-situ reaction such as Al 2 O 3 + ΔQ (ΔQ: Joule heat generated with the generation of Al 2 O 3 ) occurs.
【００２６】上記した式の場合、先ず、強化材となる
Ａｌ2 Ｏ3 をＡｌ母材中にｉｎ−ｓｉｔｕ反応させるべ
く、Ａｌ母材中に添加する添加粒子を母粒子と子粒子と
からなるカプセル粉末とし、ＳｉＯ2 粉末を母粒子、母
材と同じ金属または母材中でｉｎ−ｓｉｔｕ反応しない
金属の粉末（ここではＣｕ粉末）を子粒子とする。In the case of the above formula, first, in order for Al 2 O 3 as a reinforcing material to undergo an in-situ reaction in the Al base material, additional particles to be added to the Al base material are composed of base particles and child particles. Capsule powder is used, and SiO 2 powder is used as base particles, and powder of the same metal as the base material or metal (in this case, Cu powder) that does not undergo in-situ reaction in the base material is used as child particles.
【００２７】次に、このカプセル粉末を固形化してプリ
フォームを製造する際に、カプセル粉末における子粒子
と母粒子の体積比（子粒子／母粒子）が、加熱源に近付
くにつれ増すように、カプセル粉末の子粒子の量を加熱
源からの距離に応じて変化させて母材粉末中に傾斜配合
する。Next, when the capsule powder is solidified to produce a preform, the volume ratio (child particle / base particle) of the child particles to the parent particles in the capsule powder is increased so as to approach the heating source. The amount of the child particles of the capsule powder is changed according to the distance from the heating source, and the capsule particles are mixed into the base material powder in a gradient.
【００２８】その後、このカプセル粉末と母材粉末を傾
斜配合したものを圧粉成形し、プリフォーム体を作製す
る。Thereafter, a mixture of the capsule powder and the base material powder in a graded mixture is compacted to produce a preform.
【００２９】カプセル粉末と母材粉末を傾斜配合したも
のの圧粉成形方法は特に限定するものではなく、例え
ば、ＣＩＰなどに代表される各種の金属粉末成形法が挙
げられる。The method of compacting the capsule powder and the base material powder in an inclined manner is not particularly limited, and examples thereof include various metal powder molding methods represented by CIP and the like.
【００３０】すなわち、本発明のｉｎ−ｓｉｔｕ複合材
製造用カプセル粉末およびプリフォーム体においては、
母材中にｉｎ−ｓｉｔｕ反応させるべく添加する添加粒
子を、母粒子と子粒子とからなるカプセル粉末で形成
し、母粒子の周囲にカプセル化される子粒子として、母
材と同じ金属または母材中でｉｎ−ｓｉｔｕ反応しない
金属の粉末を用いているため、母材に対する影響が無く
または強化材の生成を妨げず、加熱時の局所的な反応を
抑制・制御でき、偏析がなく均質なｉｎ−ｓｉｔｕ複合
材を得ることができる。That is, in the capsule powder and preform of the present invention for producing an in-situ composite material,
Additive particles to be added to the base material for in-situ reaction are formed of capsule powder composed of base particles and child particles, and the same metal or mother as the base material is used as the child particles encapsulated around the base particles. Since metal powder that does not react in-situ in the material is used, it has no effect on the base material or does not hinder the formation of the reinforcing material, can suppress and control local reactions during heating, and has no homogenization without segregation. An in-situ composite can be obtained.
【００３１】また、カプセル粒子と母材粒子を配合した
ものを圧粉成形してなるプリフォーム体において、加熱
源の近くは温度が高く、ｉｎ−ｓｉｔｕ反応が進行し易
いため、加熱源から遠いカプセル粉末の子粒子の量より
も加熱源に近いカプセル粉末の子粒子の量を多くするこ
とで、ｉｎ−ｓｉｔｕ反応を抑制・制御できると共に、
プリフォーム体全体において均一にｉｎ−ｓｉｔｕ反応
させることができる。Further, in a preform formed by compacting a mixture of capsule particles and base material particles, the temperature is high near the heating source, and the in-situ reaction easily proceeds, so that the heating source is far from the heating source. By increasing the amount of the capsule particles closer to the heating source than the amount of the capsule particles, the in-situ reaction can be suppressed and controlled,
The in-situ reaction can be uniformly performed in the entire preform body.
【００３２】[0032]
（実施例）マトリックス（母材）として平均粒径が１０
０μｍのＡｌ粉末、添加粒子として母粒子がＴｉ粉末、
子粒子がＡｌ粉末からなり、かつ、平均粒径が２０μｍ
のＴｉカプセル粉末および母粒子がＳｉＣ粉末、子粒子
がＡｌ粉末からなり、かつ、平均粒径が２０μｍのＳｉ
Ｃカプセル粉末を用い、Ａｌ粉末：Ｔｉカプセル粉末：
ＳｉＣカプセル粉末の配合比が６０：２０：２０となる
ように配合する。(Example) A matrix (base material) having an average particle size of 10
0 μm Al powder, mother particles as additive particles Ti powder,
Child particles are made of Al powder, and the average particle size is 20 μm
Of Si capsule powder and mother particles of SiC powder and child particles of Al powder, and having an average particle size of 20 μm.
Using C capsule powder, Al powder: Ti capsule powder:
The SiC capsule powder is blended so as to have a blending ratio of 60:20:20.
【００３３】この時、加熱源から近い方のＴｉカプセル
粉末およびＳｉＣカプセル粉末における子粒子と母粒子
の体積比（子粒子／母粒子）が、加熱源から遠い方のＴ
ｉカプセル粉末およびＳｉＣカプセル粉末における子粒
子と母粒子の体積比（子粒子／母粒子）よりも大きくな
るように、各カプセル粉末をＡｌ粉末中に傾斜配合す
る。At this time, the volume ratio (child particle / base particle) of the child particles and the mother particles in the Ti capsule powder and the SiC capsule powder closer to the heating source is smaller than that of the T capsule farther from the heating source.
Each capsule powder is compounded in the Al powder so as to be larger than the volume ratio of the child particles to the mother particles (child particles / base particles) in the i capsule powder and the SiC capsule powder.
【００３４】その後、Ａｌ粉末、Ｔｉカプセル粉末、お
よびＳｉＣカプセル粉末を配合してなるものを圧粉成形
する。その圧粉体に電流１５０Ａ、電圧２０ＶのＴＩＧ
交流電源により１分間アーク溶解を施すことによって、
Ａｌ母材中にＴｉＣがｉｎ−ｓｉｔｕ生成する。Thereafter, a mixture of Al powder, Ti capsule powder and SiC capsule powder is compacted. A TIG with a current of 150 A and a voltage of 20 V is applied to the compact.
By performing arc melting for 1 minute with an AC power supply,
TiC is generated in-situ in the Al base material.
【００３５】（比較例）マトリックス（母材）として平
均粒径が１００μｍのＡｌ粉末、添加粒子として平均粒
径が２０μｍのＴｉ粉末および平均粒径が２０μｍのＳ
ｉＣ粉末を用い、Ａｌ粉末：Ｔｉ粉末：ＳｉＣ粉末の配
合比が６０：２０：２０となるように配合する。(Comparative Example) Al powder having an average particle diameter of 100 μm as a matrix (base material), Ti powder having an average particle diameter of 20 μm, and S having an average particle diameter of 20 μm as added particles.
The iC powder is blended so that the blending ratio of Al powder: Ti powder: SiC powder is 60:20:20.
【００３６】その後、Ａｌ粉末、Ｔｉ粉末、およびＳｉ
Ｃ粉末を配合してなるものを圧粉成形する。その圧粉体
に電流１５０Ａ、電圧２０ＶのＴＩＧ交流電源により１
分間通電加熱を施すことによって、Ａｌ母材中にＴｉＣ
がｉｎ−ｓｉｔｕ生成する。実施例および比較例におけ
るｉｎ−ｓｉｔｕ反応は、 Ａｌ＋ＳｉＣ＋Ｔｉ→Ａｌ＋ＴｉＣ＋Ｓｉ＋ΔＱ… （ΔＱ：ＳｉＣ＋Ｔｉ→ＴｉＣ＋Ｓｉに伴い発生するジ
ュール熱）である。Thereafter, Al powder, Ti powder and Si powder
A product obtained by blending C powder is compacted. The green compact is supplied with a current of 150 A and a voltage of 20 V by a TIG AC power supply for 1
By applying electric heating for minutes, TiC
Is generated in-situ. The in-situ reaction in Examples and Comparative Examples is Al + SiC + Ti → Al + TiC + Si + ΔQ (ΔQ: Joule heat generated with SiC + Ti → TiC + Si).
【００３７】炭化物の標準生成自由エネルギー温度図を
図４に示す。図中における横軸は温度を示し、縦軸はギ
ブスの標準生成自由エネルギーを示し、曲線ＣはＳｉＣ
の標準生成自由エネルギー温度線を示し、曲線ＤはＡｌ
4 Ｃ3 の標準生成自由エネルギー温度線を示し、曲線Ｅ
はＴｉＣの標準生成自由エネルギー温度線を示してい
る。FIG. 4 shows a standard free energy temperature diagram for formation of carbides. In the figure, the horizontal axis indicates temperature, the vertical axis indicates the standard free energy of formation of Gibbs, and the curve C indicates SiC.
Shows the standard free energy temperature line of formation, and curve D shows Al
4 shows the standard free energy isothermal line of C 3, curve E
Indicates a standard free energy temperature line of formation of TiC.
【００３８】図４に示すように、０℃〜約２，８００℃
の温度域に亘って、曲線Ｃで表されるＳｉＣの標準生成
自由エネルギー温度線よりも曲線Ｅで表されるＴｉＣの
標準生成自由エネルギー温度線の方が下方に位置してい
ることからわかるように、ＳｉＣよりもＴｉＣの方がエ
ネルギー的に安定である。これによって、上記した式
の反応が起こる。As shown in FIG. 4, 0 ° C. to about 2,800 ° C.
It can be seen from the fact that the standard free energy line of formation energy of TiC represented by the curve E is located lower than the free energy temperature line of formation of SiC represented by the curve C over the temperature range of In addition, TiC is more energetically stable than SiC. This causes the reaction of the above formula.
【００３９】ここで、実施例において、子粒子としてＡ
ｌ粉末を選択したのは、Ａｌマトリックス中に添加して
も影響が無い点、およびｉｎ−ｓｉｔｕ反応によって生
成する強化材であるＴｉＣが、Ａｌの炭化物（Ａｌ4 Ｃ
3 ）よりもエネルギー的に安定である（０℃〜約２，８
００℃の温度域に亘って、曲線Ｄで表されるＡｌ4 Ｃ3
の標準生成自由エネルギー温度線よりも曲線Ｅで表され
るＴｉＣの標準生成自由エネルギー温度線の方が下方に
位置している）ためである。Here, in the examples, A was used as a child particle.
1 powder was selected because it had no effect when added into the Al matrix, and TiC, a reinforcing material generated by an in-situ reaction, was found to be a carbide of Al (Al 4 C
3 ) More energetically stable (0 ° C. to about 2.8
Over the temperature range of 00 ° C., Al 4 C 3 represented by curve D
This is because the standard free energy line of formation of TiC represented by the curve E is located lower than the standard free energy temperature line of formation.
【００４０】実施例におけるｉｎ−ｓｉｔｕ複合材の金
属組織顕光学微鏡写真を図５に示す。比較例におけるｉ
ｎ−ｓｉｔｕ複合材の金属組織光学顕微鏡写真を図６に
示す。ここで、図５および図６の写真の倍率は、ともに
２５倍であり、一目盛りの長さは２００μｍである。FIG. 5 shows a metallographic microscopic photograph of the in-situ composite material in the example. I in Comparative Example
FIG. 6 shows a metallographic optical micrograph of the n-situ composite. Here, the magnifications of the photographs in FIGS. 5 and 6 are both 25 times, and the length of one scale is 200 μm.
【００４１】図５に示すように、本発明のｉｎ−ｓｉｔ
ｕ複合材製造用カプセル粉末及びプリフォーム体を用い
て作製した実施例におけるｉｎ−ｓｉｔｕ複合材は、Ａ
ｌ母相６中に強化材であるＴｉＣ粒子７が均一に分散し
ており、均質なｉｎ−ｓｉｔｕ複合材が得られる。As shown in FIG. 5, the in-situ of the present invention
The in-situ composite material in the examples manufactured using the capsule powder for producing the u-composite material and the preform body is A
1 The TiC particles 7 as a reinforcing material are uniformly dispersed in the mother phase 6, and a homogeneous in-situ composite material is obtained.
【００４２】これに対して、図６に示すように、比較例
における従来の製造方法によるｉｎ−ｓｉｔｕ複合材
は、Ａｌ母相６中に、強化材であるＴｉＣ粒子７が偏析
して分散しており、ｉｎ−ｓｉｔｕ複合材は不均質とな
っている。On the other hand, as shown in FIG. 6, in the in-situ composite material according to the conventional manufacturing method in the comparative example, the TiC particles 7 as the reinforcing material are segregated and dispersed in the Al matrix 6. And the in-situ composite is heterogeneous.
【００４３】本発明のｉｎ−ｓｉｔｕ複合材製造用カプ
セル粉末及びプリフォーム体を用いて作製したｉｎ−ｓ
ｉｔｕ複合材は、ピストン（特に、ピストン燃焼室リッ
プ部、リング溝部など）、コネクティングロッド、スプ
リングリテーナ、シリンダブロック（特に、Ｃ／Ｈ（シ
リンダヘッド）のバルブポート間、バルブシートな
ど）、ダンパプーリ等の耐熱・耐摩耗性が要求されるＡ
ｌ合金部品に適用することができる。In-s prepared using the capsule powder and preform of the present invention for producing an in-situ composite material
Itu composite materials include pistons (particularly, piston combustion chamber lips, ring grooves, etc.), connecting rods, spring retainers, cylinder blocks (particularly, between C / H (cylinder head) valve ports, valve seats, etc.), damper pulleys, etc. A which is required to have heat resistance and wear resistance
It can be applied to 1 alloy parts.
【００４４】[0044]
【発明の効果】以上要するに本発明によれば、次のよう
な優れた効果を発揮する。In summary, according to the present invention, the following excellent effects are exhibited.
【００４５】（１） 母材中にｉｎ−ｓｉｔｕ反応させ
るべく添加する添加粒子を、母粒子と子粒子とからなる
カプセル粉末で形成しすることで、ｉｎ−ｓｉｔｕ反応
の制御が容易で、強化材が均質分散したｉｎ−ｓｉｔｕ
複合材を得ることができる。(1) By forming the added particles to be added to the base material to cause an in-situ reaction in the capsule powder composed of the base particles and the child particles, the control of the in-situ reaction is easy and the strengthening is achieved. In-situ with homogeneous dispersion of wood
A composite can be obtained.
【００４６】（２） 子粒子として、母材と同じ金属ま
たは母材中でｉｎ−ｓｉｔｕ反応しない金属の粉末を用
いることで、母材に対する影響が無くまたは強化材の生
成を妨げず、加熱時の局所的な反応を抑制・制御でき、
偏析がなく均質なｉｎ−ｓｉｔｕ複合材を得ることがで
きる。(2) By using the same metal as the base material or a powder of a metal that does not undergo in-situ reaction in the base material as the child particles, there is no influence on the base material or the formation of the reinforcing material is not hindered, Can suppress and control the local reaction of
A homogeneous in-situ composite material without segregation can be obtained.
【００４７】（３） カプセル粒子と母材粒子を配合し
たものを圧粉成形してなるプリフォーム体において、加
熱源から遠いカプセル粉末の子粒子の量よりも加熱源に
近いカプセル粉末の子粒子の量を多くした傾斜配合とす
ることで、ｉｎ−ｓｉｔｕ反応を抑制・制御できると共
に、プリフォーム体全体において均一にｉｎ−ｓｉｔｕ
反応させることができる。(3) In a preform formed by compacting a mixture of capsule particles and base material particles, the child particles of the capsule powder closer to the heating source than the amount of the child particles of the capsule powder far from the heating source And the in-situ reaction can be suppressed and controlled, and the in-situ reaction is uniformly performed in the entire preform body.
Can react.
【図１】本発明のｉｎ−ｓｉｔｕ複合材製造用カプセル
粉末の模式図である。FIG. 1 is a schematic view of a capsule powder for producing an in-situ composite material of the present invention.
【図２】本発明のｉｎ−ｓｉｔｕ複合材製造用プリフォ
ーム体の模式図である。FIG. 2 is a schematic diagram of a preform body for producing an in-situ composite material of the present invention.
【図３】酸化物の標準生成自由エネルギー温度図であ
る。FIG. 3 is a graph showing a standard free energy of formation temperature of an oxide.
【図４】炭化物の標準生成自由エネルギー温度図であ
る。FIG. 4 is a standard free energy temperature diagram of formation of carbides.
【図５】実施例におけるｉｎ−ｓｉｔｕ複合材の金属組
織光学顕微鏡写真である。FIG. 5 is a metallographic optical micrograph of an in-situ composite material in an example.
【図６】比較例におけるｉｎ−ｓｉｔｕ複合材の金属組
織光学顕微鏡写真である。FIG. 6 is a metallographic optical micrograph of an in-situ composite material in a comparative example.
【符号の説明】 １ カプセル粉末 ２ 母粒子 ３ 子粒子 ４ 母材粉末 ５ 加熱源（ｉｎ−ｓｉｔｕ反応用加熱源）[Description of Signs] 1 Capsule powder 2 Base particle 3 Child particle 4 Base material powder 5 Heating source (heating source for in-situ reaction)
───────────────────────────────────────────────────── フロントページの続き (72)発明者 小池 朝夫 神奈川県藤沢市土棚８番地 株式会社い すゞ中央研究所内 (72)発明者 元吉 正人 神奈川県藤沢市土棚８番地 株式会社い すゞ中央研究所内 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor, Asao Koike, 8 Dosana, Fujisawa-shi, Kanagawa Prefecture, Isuzu Central Research Institute Co., Ltd. Inside
Claims (6)
添加する添加粒子において、上記添加粒子を母粒子と子
粒子とからなるカプセル粉末で形成したことを特徴とす
るｉｎ−ｓｉｔｕ複合材製造用カプセル粉末。1. An in-situ composite material manufacturing method, wherein said additive particles are added to a base material so as to cause an in-situ reaction, wherein said additional particles are formed of a capsule powder composed of base particles and child particles. Capsule powder.
物、または非金属化合物からなる粉末であり、上記子粒
子が上記母材と同じ金属または上記母材中でｉｎ−ｓｉ
ｔｕ反応しない金属からなる粉末である請求項１記載の
ｉｎ−ｓｉｔｕ複合材製造用カプセル粉末。2. The method according to claim 1, wherein the base particles are powders of a metal, a nonmetal, a metal compound, or a nonmetal compound, and the child particles are in-situ in the same metal as the base material or in the base material.
The capsule powder for producing an in-situ composite material according to claim 1, which is a powder made of a metal that does not react with tu.
求項１記載のｉｎ−ｓｉｔｕ複合材製造用カプセル粉
末。3. The capsule powder for producing an in-situ composite material according to claim 1, wherein the base material is Al or an Al alloy.
ｓｉｔｕ反応させて該母材を複合強化するプリフォーム
体において、上記添加粒子を母粒子と子粒子とからなる
カプセル粉末で形成し、該カプセル粉末を上記母材粉末
と配合し形成したことを特徴とするｉｎ−ｓｉｔｕ複合
材製造用プリフォーム体。4. The method according to claim 1, wherein the added particles added to the base material are in-
In a preform body in which the base material is compositely reinforced by a situ reaction, the additional particles are formed of a capsule powder composed of base particles and child particles, and the capsule powder is formed by blending with the base material powder. A preform for producing an in-situ composite material.
上記母粒子の体積比（子粒子／母粒子）がｉｎ−ｓｉｔ
ｕ反応用加熱源に近付くにつれ増すように、該カプセル
粉末を上記母材粉末中に傾斜配合したものである請求項
４記載のｉｎ−ｓｉｔｕ複合材製造用プリフォーム体。5. A volume ratio (child particle / base particle) of said child particles and said mother particles in said capsule powder is in-situ.
The preform body for producing an in-situ composite material according to claim 4, wherein said capsule powder is inclinedly blended into said base material powder so as to increase as approaching the heating source for u reaction.
ーザ、アークなどである請求項４記載のｉｎ−ｓｉｔｕ
複合材製造用プリフォーム体。6. The in-situ reaction source according to claim 4, wherein the heating source for the in-situ reaction is a laser, an arc or the like.
Preform body for composite material production.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03141797A JP3503390B2 (en) | 1997-01-31 | 1997-01-31 | Capsule powder and preform for in-situ composite material production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03141797A JP3503390B2 (en) | 1997-01-31 | 1997-01-31 | Capsule powder and preform for in-situ composite material production |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10219310A true JPH10219310A (en) | 1998-08-18 |
| JP3503390B2 JP3503390B2 (en) | 2004-03-02 |
Family
ID=12330694
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP03141797A Expired - Fee Related JP3503390B2 (en) | 1997-01-31 | 1997-01-31 | Capsule powder and preform for in-situ composite material production |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160143849A (en) * | 2014-04-18 | 2016-12-14 | 지멘스 에너지, 인코포레이티드 | Forming a secondary structure directly onto a turbine blade by additive manufacturing method and a turbine blade having an additively manufactured snubber on its wall |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07502938A (en) * | 1990-12-07 | 1995-03-30 | ボード・オブ・リージェンツ，ザ・ユニバーシティ・オブ・テキサス・システム | Manufacture of parts by compound formation of precursor powders |
-
1997
- 1997-01-31 JP JP03141797A patent/JP3503390B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07502938A (en) * | 1990-12-07 | 1995-03-30 | ボード・オブ・リージェンツ，ザ・ユニバーシティ・オブ・テキサス・システム | Manufacture of parts by compound formation of precursor powders |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160143849A (en) * | 2014-04-18 | 2016-12-14 | 지멘스 에너지, 인코포레이티드 | Forming a secondary structure directly onto a turbine blade by additive manufacturing method and a turbine blade having an additively manufactured snubber on its wall |
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| Publication number | Publication date |
|---|---|
| JP3503390B2 (en) | 2004-03-02 |
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