JPH04224601A - Manufacture of titanium-based composite material - Google Patents
Manufacture of titanium-based composite materialInfo
- Publication number
- JPH04224601A JPH04224601A JP2414247A JP41424790A JPH04224601A JP H04224601 A JPH04224601 A JP H04224601A JP 2414247 A JP2414247 A JP 2414247A JP 41424790 A JP41424790 A JP 41424790A JP H04224601 A JPH04224601 A JP H04224601A
- Authority
- JP
- Japan
- Prior art keywords
- titanium
- powder
- composite material
- based composite
- titania
- 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.)
- Pending
Links
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 239000010936 titanium Substances 0.000 title claims abstract description 42
- 229910052719 titanium Inorganic materials 0.000 title claims abstract description 42
- 239000002131 composite material Substances 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 239000000843 powder Substances 0.000 claims abstract description 23
- 229910001069 Ti alloy Inorganic materials 0.000 claims abstract description 17
- 238000005245 sintering Methods 0.000 claims abstract description 6
- 230000001590 oxidative effect Effects 0.000 claims description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract description 22
- 239000000919 ceramic Substances 0.000 abstract description 14
- 230000003647 oxidation Effects 0.000 abstract description 4
- 238000007254 oxidation reaction Methods 0.000 abstract description 4
- 230000001070 adhesive effect Effects 0.000 abstract 2
- 230000000052 comparative effect Effects 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000011812 mixed powder Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Landscapes
- Powder Metallurgy (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明はチタン又はチタン合金に
チタニア（セラミックス）を分散させることにより高強
度のチタン基複合材を得るチタン基複合材の製造方法に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a titanium-based composite material by dispersing titania (ceramics) in titanium or a titanium alloy to obtain a high-strength titanium-based composite material.
【０００２】0002
【従来の技術】チタン基複合材は、理論上高い強度を得
ることができると共に、耐熱性及び耐蝕性が優れている
ことから、航空宇宙分野及び自動車分野等において構造
材として実用化することが試みられている。[Prior Art] Titanium-based composite materials can theoretically have high strength and have excellent heat resistance and corrosion resistance, so they can be put to practical use as structural materials in the aerospace and automobile fields. is being attempted.
【０００３】従来、チタン基複合材を製造する場合、チ
タン又はチタン合金の粉末とチタニア（ＴｉＯ２ ）等
のセラミックス粉末とを所定の割合で均一に混合したも
のを原料粉末とする。そして、この原料粉末をプレスし
て圧粉体を作製した後、この圧粉体を真空中又はアルゴ
ンガス中にて加熱して焼結させることによりチタン基複
合材を製造している。また、ホットプレス又は熱間静水
圧プレスを使用して、前記原料粉末を加圧すると同時に
加熱して焼結させることにより、チタン基複合材からな
る所望の形状の製品を得ようと試みられている。Conventionally, when producing a titanium-based composite material, a raw material powder is prepared by uniformly mixing titanium or titanium alloy powder and ceramic powder such as titania (TiO2) in a predetermined ratio. A titanium-based composite material is manufactured by pressing this raw material powder to produce a green compact, and then heating and sintering the green compact in a vacuum or argon gas. In addition, attempts have been made to obtain a titanium-based composite product in a desired shape by pressing and simultaneously heating and sintering the raw material powder using a hot press or hot isostatic press. There is.
【０００４】0004
【発明が解決しようとする課題】しかしながら、上述し
た従来のチタン基複合材料の製造方法においては、セラ
ミックスの分散によるチタン基複合材料の強化特性は、
チタン又はチタン合金とセラミックスとの界面における
接着性の良否により決定される。チタンは金属中では活
性が高いものであるが、本来、セラミックスは耐火性が
高い材料であるため、チタン又はチタン合金とセラミッ
クスとの界面に良好な接着性を得ることは極めて困難で
ある。従って、原料としてチタン又はチタン合金の粉末
とセラミックス粉末とを混合したものを使用した場合、
得られるチタン基複合材料は延性が低く、実際の強度が
理論強度よりも極めて低いという問題点がある。[Problems to be Solved by the Invention] However, in the above-mentioned conventional method for manufacturing titanium-based composite materials, the strengthening properties of the titanium-based composite materials due to the dispersion of ceramics are
It is determined by the quality of adhesion at the interface between titanium or titanium alloy and ceramics. Titanium is highly active among metals, but since ceramics are inherently highly refractory materials, it is extremely difficult to obtain good adhesion at the interface between titanium or titanium alloy and ceramics. Therefore, when a mixture of titanium or titanium alloy powder and ceramic powder is used as a raw material,
The resulting titanium-based composite material has a problem in that it has low ductility and its actual strength is much lower than its theoretical strength.
【０００５】本発明はかかる問題点に鑑みてなされたも
のであって、チタン又はチタン合金とセラミックスとの
界面における接着性を高めることができ、高強度且つ高
延性のチタン基複合材を製造することができるチタン基
複合材の製造方法を提供することを目的とする。[0005] The present invention was made in view of these problems, and it is possible to improve the adhesion at the interface between titanium or titanium alloy and ceramics, and to produce a titanium-based composite material with high strength and high ductility. The purpose of the present invention is to provide a method for manufacturing a titanium-based composite material.
【０００６】[0006]
【課題を解決するための手段】本発明に係るチタン基複
合材料の製造方法は、チタン又はチタン合金の粉末の表
面を酸化する工程と、表面が酸化された前記粉末を焼結
させる工程とを有することを特徴とする。[Means for Solving the Problems] A method for producing a titanium-based composite material according to the present invention includes the steps of oxidizing the surface of titanium or titanium alloy powder, and sintering the powder whose surface has been oxidized. It is characterized by having.
【０００７】[0007]
【作用】本願発明者はチタン又はチタン合金とセラミッ
クスとの界面における接着性を高めるべく種々実験を重
ねた。本発明はこの実験結果に基づいてなされたもので
ある。[Operation] The inventors of the present invention have conducted various experiments in order to improve the adhesion at the interface between titanium or titanium alloy and ceramics. The present invention was made based on the results of this experiment.
【０００８】即ち、本発明においては、先ずチタン又は
チタン合金の粉末に酸化処理を施すことにより、この粉
末の表面にチタニア（セラミックス）を生成させる。こ
のチタニアは酸化処理によって前記粉末の表面に強固に
生成するため、チタン又はチタン合金との接着性が極め
て高い。次いで、表面が酸化された前記粉末を所望の形
状に成形し、これを焼結させることによりチタン基複合
材を製造する。従って、本発明によれば、チタン又はチ
タン合金とセラミックスとの界面における接着性を高め
ることができるので、高強度且つ高延性のチタン基複合
材を製造することができる。That is, in the present invention, titanium or titanium alloy powder is first subjected to oxidation treatment to form titania (ceramics) on the surface of the powder. Since this titania is strongly formed on the surface of the powder by the oxidation treatment, it has extremely high adhesion to titanium or titanium alloy. Next, the powder whose surface has been oxidized is molded into a desired shape and sintered to produce a titanium-based composite material. Therefore, according to the present invention, adhesion at the interface between titanium or a titanium alloy and ceramics can be improved, so a titanium-based composite material with high strength and high ductility can be manufactured.
【０００９】[0009]
【実施例】次に、本発明の実施例についてその比較例と
比較して説明する。EXAMPLES Next, examples of the present invention will be explained in comparison with comparative examples thereof.
【００１０】先ず、平均粒径が２５μｍのチタン粉末を
大気雰囲気にて ８００℃の温度で ２時間加熱して酸
化処理を施すことにより、前記チタン粉末の表面にチタ
ニアを生成させた。次いで、前述の如く表面が酸化され
た前記チタン粉末を鉄製のケースに充填し、このケース
を密閉した後、熱間静水圧プレスにより温度が１２００
℃、圧力が１０００気圧の条件にて前記ケース内の前記
チタン粉末を焼結させた。その後、機械加工により焼結
体から前記ケースを剥離した。これにより、 ５重量％
のチタニアを含有する本実施例のチタン基複合材を製造
した。[0010] First, titanium powder having an average particle diameter of 25 μm was oxidized by heating at 800° C. in the air for 2 hours, thereby producing titania on the surface of the titanium powder. Next, the titanium powder whose surface has been oxidized as described above is filled into an iron case, the case is sealed, and then heated to a temperature of 1200°C using a hot isostatic press.
The titanium powder in the case was sintered at a temperature of 1000 atm at a pressure of 1000 atm. Thereafter, the case was peeled off from the sintered body by machining. As a result, 5% by weight
A titanium-based composite material of this example containing titania was manufactured.
【００１１】また、平均粒径が２５μｍのチタン粉末と
、平均粒径が ５μｍのチタニア粉末とを重量比が９５
： ５になるように均一に混合し、この混合粉末を上述
の実施例と同様の方法により焼結させた。これにより、
５重量％のチタニアを含有する比較例のチタン基複合
材を製造した。[0011] Furthermore, titanium powder with an average particle size of 25 μm and titania powder with an average particle size of 5 μm are mixed in a weight ratio of 95 μm.
: 5, and this mixed powder was sintered in the same manner as in the above example. This results in
A comparative titanium-based composite containing 5% by weight titania was produced.
【００１２】このようにして得られた実施例及び比較例
に係るチタン基複合材について、引張強度及び伸びを測
定した。その結果を下記表１に示す。The tensile strength and elongation of the titanium-based composite materials of Examples and Comparative Examples thus obtained were measured. The results are shown in Table 1 below.
【００１３】この表１から明らかなように、本実施例に
係るチタン基複合材は引張強度が７０ｋｇ／ｍｍ２ で
あり、伸びが１０％であって、強度及び延性が共に優れ
たものであった。As is clear from Table 1, the titanium-based composite material according to this example had a tensile strength of 70 kg/mm2, an elongation of 10%, and was excellent in both strength and ductility. .
【００１４】一方、チタン粉末とセラミック粉末との混
合粉末を焼結させた比較例に係るチタン基複合材は引張
強度が５８ｋｇ／ｍｍ２ と低く、伸びが ０．８％と
小さいものであった。On the other hand, a titanium-based composite material according to a comparative example obtained by sintering a mixed powder of titanium powder and ceramic powder had a low tensile strength of 58 kg/mm 2 and a small elongation of 0.8%.
【００１５】[0015]
【表１】[Table 1]
【００１６】[0016]
【発明の効果】以上説明したように本発明によれば、チ
タン又はチタン合金の粉末の表面を酸化してチタニアを
生成させた後、この粉末を焼結させるから、チタン又は
チタン合金とセラミックスとの界面における接着性を著
しく高めることができる。従って、高強度且つ高延性の
チタン基複合材を製造することができる。As explained above, according to the present invention, the surface of titanium or titanium alloy powder is oxidized to produce titania, and then this powder is sintered, so titanium or titanium alloy and ceramics can be bonded together. Adhesion at the interface can be significantly improved. Therefore, a titanium-based composite material with high strength and high ductility can be manufactured.
Claims (1)
酸化する工程と、表面が酸化された前記粉末を焼結させ
る工程とを有することを特徴とするチタン基複合材の製
造方法。1. A method for producing a titanium-based composite material, comprising the steps of: oxidizing the surface of titanium or titanium alloy powder; and sintering the surface-oxidized powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2414247A JPH04224601A (en) | 1990-12-25 | 1990-12-25 | Manufacture of titanium-based composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2414247A JPH04224601A (en) | 1990-12-25 | 1990-12-25 | Manufacture of titanium-based composite material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04224601A true JPH04224601A (en) | 1992-08-13 |
Family
ID=18522746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2414247A Pending JPH04224601A (en) | 1990-12-25 | 1990-12-25 | Manufacture of titanium-based composite material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04224601A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1190236A (en) * | 1997-09-22 | 1999-04-06 | Ebara Corp | Photocatalyst and reaction device using photocatalyst |
| JP2011195864A (en) * | 2010-03-18 | 2011-10-06 | Katsuyoshi Kondo | Titanium based composite material, and method for producing the same |
| JP2012241241A (en) * | 2011-05-20 | 2012-12-10 | Katsuyoshi Kondo | Titanium material and producing method therefor |
| CN107262729A (en) * | 2017-07-04 | 2017-10-20 | 中南大学 | It is a kind of to strengthen the preparation method of mutually equally distributed particulate reinforced metal-based complex spherical powder material |
| US20230084462A1 (en) * | 2020-02-27 | 2023-03-16 | Toho Titanium Co., Ltd. | Method for Manufacturing Porous Metal Body, and Porous Metal Body |
-
1990
- 1990-12-25 JP JP2414247A patent/JPH04224601A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1190236A (en) * | 1997-09-22 | 1999-04-06 | Ebara Corp | Photocatalyst and reaction device using photocatalyst |
| JP2011195864A (en) * | 2010-03-18 | 2011-10-06 | Katsuyoshi Kondo | Titanium based composite material, and method for producing the same |
| JP2012241241A (en) * | 2011-05-20 | 2012-12-10 | Katsuyoshi Kondo | Titanium material and producing method therefor |
| CN107262729A (en) * | 2017-07-04 | 2017-10-20 | 中南大学 | It is a kind of to strengthen the preparation method of mutually equally distributed particulate reinforced metal-based complex spherical powder material |
| US20230084462A1 (en) * | 2020-02-27 | 2023-03-16 | Toho Titanium Co., Ltd. | Method for Manufacturing Porous Metal Body, and Porous Metal Body |
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