JPS6187860A - Production of composite material - Google Patents

Production of composite material

Info

Publication number
JPS6187860A
JPS6187860A JP59208018A JP20801884A JPS6187860A JP S6187860 A JPS6187860 A JP S6187860A JP 59208018 A JP59208018 A JP 59208018A JP 20801884 A JP20801884 A JP 20801884A JP S6187860 A JPS6187860 A JP S6187860A
Authority
JP
Japan
Prior art keywords
wire
alloy
composite material
fecraly
heat treatment
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
Application number
JP59208018A
Other languages
Japanese (ja)
Inventor
Hiromitsu Takeda
博光 竹田
Masayuki Ito
伊藤　昌行
Takao Suzuki
隆夫 鈴木
Yuka Takahashi
高橋　由加
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority to JP59208018A priority Critical patent/JPS6187860A/en
Publication of JPS6187860A publication Critical patent/JPS6187860A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/18—After-treatment
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/06—Metallic material
    • C23C4/073—Metallic material containing MCrAl or MCrAlY alloys, where M is nickel, cobalt or iron, with or without non-metal elements
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • C23C4/137—Spraying in vacuum or in an inert atmosphere

Abstract

PURPOSE:To produce a composite material having low porosity and excellent mechanical properties by subjecting a W wire to plasma spraying of a base material consisting of an FeCrAlY alloy in an inert atmosphere under a relatively low pressure then subjecting the same to a heat treatment in a vacuum at an adequate temp. CONSTITUTION:The W wire is subjected to the plasma spraying of the base material of the FeCrAlY alloy consisting of about 5-40wt% Cr, about 3-20% Al, about 0.05-3% Y and the balance substantially Fe in the inert atmosphere under 50-500Torr, by which the W wire is compounded and united with said material in the 1st stage. The result ant composite material is subjected to the heat treatment in the vacuum for preferably about >=30min treatment time in a 1,000-1,300 deg.C temp. range. The FeCrAlY alloy is thereby stuck onto the surface of the W wire in the state of having no intergranular oxide at a good yield and further the metallic structure of the FeCrAlY alloy is made thorough. The composite W/FeCrAlY material which is excellent in terms of cost and characteristic is thus obtd.

Description

【発明の詳細な説明】 〔発明の技術分野〕 本発明は複合材料の製造方法に係り、特に高温ですぐれ
た機械的性質を示すＷ線強化Ｆｅ　基合金の複合材料の
製造方法１こ関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a method for manufacturing a composite material, and particularly to a method for manufacturing a composite material of a W-wire reinforced Fe 2 -based alloy that exhibits excellent mechanical properties at high temperatures.

〔発明の技術的背景とその問題点〕[Technical background of the invention and its problems]

資源の涸渇が問題視されている今日においては、省資源
の観点からガスタービンで代表される大形のエネルギ変
換機器の高効率化が重要である。高効率化の基本的手段
として、機器の作動温度の高温化が挙げられる。この場
合、機器に用いられる部材の耐用温度が構造上大きな問
題となるがが、従来から採用されてきているＮｉ基、Ｆ
ｅ基、ＣＯ基超合金算では耐用温度上昇の開発も既に限
界に近い状況に達している。そこで、次の世代の耐熱材
料として高融点金属材料の繊維で従来の超合金を強化し
た複合材料が着目され始めている。In today's world where resource depletion is viewed as a problem, it is important to improve the efficiency of large energy conversion equipment, such as gas turbines, from the perspective of resource conservation. A basic means of increasing efficiency is increasing the operating temperature of equipment. In this case, the withstand temperature of the components used in the equipment becomes a major structural problem, but the Ni-based, F-based
In terms of e-based and CO-based superalloys, the development of durable temperature increases has already reached its limit. Therefore, attention is beginning to be paid to composite materials in which conventional superalloys are reinforced with fibers of high-melting point metal materials as the next generation of heat-resistant materials.

その代表的なものがＷ線強化Ｆｅ　基合金の複合材料で
ある。これは、高融点金属であるＷ線をＦｅ基合金中に
埋込んで一体化したものであるが、この組合せの特徴は
高温での長時間安定性１こある。A typical example is a composite material of a W-line reinforced Fe-based alloy. This is a product in which W wire, which is a high melting point metal, is embedded and integrated into an Fe-based alloy, and the feature of this combination is long-term stability at high temperatures.

即ち、上述の高融点金属／超合金の組み合せ（こおいて
は高温での相互拡散が重要な問題となっているが、その
中で最も相互拡散の程度が低い組み合せとしてＷ／Ｆｅ
が選定されている。That is, the above-mentioned combination of high melting point metal/superalloy (in which interdiffusion at high temperatures is an important issue, but W/Fe is the combination with the lowest degree of interdiffusion.
has been selected.

本複合材料の製造方法としてはＷ線上にプラズマ溶射に
よってＦｅＣｒｋｅＹ合金を析出させ複合一体化する方
法がある。特に、最近では低圧容器内でプラズマ溶射を
実施し、ＦｅＣｒＡ／Ｙ合金の特性を向上する方法がと
られている。As a manufacturing method of this composite material, there is a method of depositing FeCrkeY alloy on the W wire by plasma spraying and integrating the composite material. In particular, a method has recently been adopted in which plasma spraying is carried out in a low-pressure vessel to improve the properties of FeCrA/Y alloys.

しかしながら、該低圧プラズマ溶射法は、その％像であ
る少ない気孔率、少ない未溶融粒子を再現させる為１こ
は、アーク電流、アークガス、補助ガス、粉末供給量、
距離算種々のプラズマ溶射条件を高精度で制御する必要
があった。さらにこれらの条件を最適化して溶射を実施
する場合、大気中の溶射法に比べて入力エネルギー、粉
末の付着犠共に大幅に歩留りが低下する。いう欠点があ
った。However, in order to reproduce the low-pressure plasma spraying method, which has a low porosity and a small number of unmelted particles, the following problems are required: arc current, arc gas, auxiliary gas, powder supply amount,
Distance calculation It was necessary to control various plasma spraying conditions with high precision. Furthermore, when thermal spraying is carried out with these conditions optimized, the yield is significantly reduced in terms of input energy and powder adhesion costs, compared to thermal spraying in the atmosphere. There was a drawback.

〔発明の目的〕[Purpose of the invention]

本発明は上記の点に鑑み、低圧プラズマ溶射のすぐれた
特性を活かし、かつ歩留り良く気孔率の少ない優れたＷ
線Ｉ　ＦｅＣｒｋｅＹ合金基材からなる複合材料を製造
する方法を提供するものである。In view of the above points, the present invention utilizes the excellent characteristics of low-pressure plasma spraying, and provides excellent W with high yield and low porosity.
A method of manufacturing a composite material comprising a wire I FeCrkeY alloy substrate is provided.

し発明の概要〕 本発明はＷ線にＦｅＣｒｋｅＹ合金基材を５０〜５００
Ｔｏｒｒの不活性雰囲気中でプラズマ溶射し複合一体化
する第１の工程と、 前記第１の工程で得た複合体を真空中で１０００℃〜１
３５０’Ｃの温度範囲で熱処理を施す第２の工程とを具
備する複合材料の製造方法である。[Summary of the invention] The present invention provides a W wire with a FeCrkeY alloy base material of 50 to 500%
A first step of plasma spraying and composite integration in an inert atmosphere of Torr; and heating the composite obtained in the first step at 1000°C to 100°C in a vacuum.
and a second step of performing heat treatment in a temperature range of 350'C.

つまり本発明方法では所定条件下でＦｅＣｒＡｌＹ合金
をＷ線１こ溶射した後、特定の熱処理を施す事を最大の
特長とするものである。In other words, the greatest feature of the method of the present invention is that after thermal spraying one W line of FeCrAlY alloy under predetermined conditions, a specific heat treatment is performed.

なお本発明方法においてＦｅＣｒＡｌＹ合金とは重量％
でＣ「５〜４０％、　　ｋｅ３〜２０％　、　　Ｙｏ、
０５〜３％残部が実質的１こＦｅ　からなるものである
。In addition, in the method of the present invention, FeCrAlY alloy refers to
So C "5~40%, ke3~20%, Yo,
The balance of 0.5 to 3% consists essentially of 1 Fe.

まだ、各数値限定は以下の如き理由に−よるものである
低圧溶射条件を５０〜５００Ｔｏｒｒとしたのは、５０
Ｔｏｒｒ末端では粉末の付着効率が著しく低下し、５０
０Ｔｏｒｒを超えると大気溶射との差異が認められず、
本発明効果が充分得られないからである。However, each numerical limitation is based on the following reasons.
At the Torr end, the powder adhesion efficiency decreases significantly, and 50
When the temperature exceeds 0 Torr, there is no difference between atmospheric spraying and
This is because the effects of the present invention cannot be sufficiently obtained.

さらｆこ第２の工程における熱処理条件を真空中で１０
００’〜１３５０’Ｃ，としたのは、１０００′ＣＪ未
満ではＦｅ−ＣｒＡ／Ｙ合金からなる母地の緻密化が図
れず、１３５０°Ｃを越えるとタングステンと母地の反
応が著しく進行し、複合一体化が困難となる為である。Furthermore, the heat treatment conditions in the second step were set to 10% in vacuum.
00' to 1350'CJ is because if the temperature is less than 1000'CJ, the matrix made of Fe-CrA/Y alloy cannot be densified, and if the temperature exceeds 1350°C, the reaction between tungsten and the matrix will proceed significantly. This is because complex integration becomes difficult.

なおこの熱処理は通常Ｉ　Ｔｏｒｒ以上の真空中で行わ
れ、又熱処理時間は熱処理温度との関係で適宜選択され
るが、実用上３０分以上とする事が好ましい。Note that this heat treatment is usually performed in a vacuum of I Torr or more, and the heat treatment time is appropriately selected in relation to the heat treatment temperature, but in practice it is preferably 30 minutes or more.

〔発明の効果〕〔Effect of the invention〕

本発明方法により得られた複合材料は、粒界酸化物の存
在が認められず、かつ気孔、未溶粉末の巻き込み等のな
いＷ線に付着したＦｅＣｒＡ／Ｙ合金を得る事ができ、
またＦｅＣｒ人ＩＹ合金の歩留り（供給粉末量ｌこ対す
るＷ線上の付着量）も著しく向上したものとなる。In the composite material obtained by the method of the present invention, the presence of grain boundary oxides is not recognized, and it is possible to obtain a FeCrA/Y alloy that adheres to the W wire without pores or entrainment of undissolved powder.
Furthermore, the yield of the FeCr-IY alloy (the amount of deposited powder on the W line relative to the amount of powder supplied) is also significantly improved.

〔発明の概要〕[Summary of the invention]

本発明は供給する粉末量とＷ線上に付着する量との割合
、すなわち付着歩留りが最もすぐれた条件でＦｅＣｒＡ
ｌ！Ｙを低圧プラズマ溶射し、Ｗ線強化ＦｅＣｒｋｅＹ
合金複合材料を得る工程と該複合材料をｌ　Ｔｏｒｒ以
上の真空中で１０００℃以上１３５０℃以下の温度、３
０分以上の熱処理の工程とからなることを特徴とするｗ
／Ｆｅ　Ｃｒ　ＡＩＹ　？Ｊ合材料の製造方法である。In the present invention, FeCrA
l! Low-pressure plasma spraying of Y and W line reinforced FeCrkeY
A step of obtaining an alloy composite material and heating the composite material at a temperature of 1000°C or more and 1350°C or less in a vacuum of 1 Torr or more,
It is characterized by consisting of a step of heat treatment for 0 minutes or more.
/Fe Cr AIY? This is a method for manufacturing J composite material.

〔発明の効果〕〔Effect of the invention〕

本発明に係る複合材料は前述の如く、高価なＦｅＣｒ人
／Ｙ合金を歩留り良く、かつ粒界酸化物のない状態でＷ
線表面上に付着せしめている。また、後熱処理１こより
、低圧プラズマ溶射時においては不十分であったＦｅＣ
ｒ人／Ｙ合金の金属組織を完全なものとしている。これ
らにより、本発明に係るＷ／ＦｅＣｒ　ＡｅＹ複合材料
は価格的蒼こも特性的１こもすぐれたものとなる。As mentioned above, the composite material according to the present invention is capable of converting the expensive FeCr/Y alloy into W at a high yield and in the absence of grain boundary oxides.
It is attached to the surface of the wire. In addition, from the first post-heat treatment, FeC, which was insufficient during low-pressure plasma spraying, was improved.
The metal structure of the r/Y alloy is perfected. As a result, the W/FeCr AeY composite material according to the present invention is superior in terms of price and properties.

〔実施例〕〔Example〕

０３φのＷ線を矩形の枠に並べて張り、これに低圧容器
内でＦｅ−２４Ｃｒ−８人／−０ｊＹ合金を磁圧３７ｖ
＋選流８００ＡＩ粉体供給量２７０ｇ／ｒｎｉｎ　　真
空度２５０Ｔｏｒｒ　のアルゴン雰囲気下でプラズマ溶
射しＷ線とＦｅＣｒＡｌＹ合金とを複合一体化した。こ
の複合体を１，１００℃Ｘ４　ｈ　ｒ＋　ｌ　Ｘ　Ｉ　
Ｑ　ＴＯｒｒの真空下で熱処理した。Ｗ線上１こ付着し
たＦｅＣｒ人ｅＹ合金の歩留りは５５チあり、低圧プラ
ズマ溶射て最もすぐれた皮膜を形成する際の歩留り１５
〜２５チ　　に比べ２倍以上すぐれていた。また、熱処
理後のＦｅＣｒＡ／Ｙ合金の金属組織は気孔のない緻密
なもので、かつ相互拡散により均質化されており、最高
条件で低圧プラズマ注射したものの金属組織よりもすぐ
れていた。03φ W wires are lined up and stretched in a rectangular frame, and Fe-24Cr-8/-0jY alloy is applied to the wires at a magnetic pressure of 37V in a low-pressure container.
+ Selective flow 800AI powder supply amount 270 g/rnin, plasma spraying in an argon atmosphere with a degree of vacuum of 250 Torr to composite and integrate the W wire and the FeCrAlY alloy. This complex was heated at 1,100°C x 4 hours r+ l
Heat treated under a vacuum of Q TOrr. The yield of FeCr/eY alloy deposited on the W wire is 55 chips, and the yield when forming the best film by low-pressure plasma spraying is 15.
It was more than twice as good as ~25chi. Furthermore, the metal structure of the FeCrA/Y alloy after heat treatment was dense with no pores and was homogenized by interdiffusion, which was superior to that of the metal structure injected with low-pressure plasma under the highest conditions.

Claims (1)

【特許請求の範囲】 Ｗ線にＦｅＣｒＡｌＹ合金基材を５０〜５００Ｔｏｒｒ
の不活性雰囲気中でプラズマ溶射し複合一体化する第１
の工程と、 前記第１の工程で得た複合体を真空中で１０００℃〜１
３５０℃の温度範囲で熱処理を施す第２の工程とを具備
した事を特徴とする複合材料の製造方法。[Claims] A FeCrAlY alloy base material is applied to the W wire at a pressure of 50 to 500 Torr.
The first step is to integrate the composite by plasma spraying in an inert atmosphere.
and heating the composite obtained in the first step in vacuum at 1000°C to 100°C.
A method for producing a composite material, comprising a second step of performing heat treatment in a temperature range of 350°C.
JP59208018A 1984-10-05 1984-10-05 Production of composite material Pending JPS6187860A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59208018A JPS6187860A (en) 1984-10-05 1984-10-05 Production of composite material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59208018A JPS6187860A (en) 1984-10-05 1984-10-05 Production of composite material

Publications (1)

Publication Number Publication Date
JPS6187860A true JPS6187860A (en) 1986-05-06

Family

ID=16549310

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59208018A Pending JPS6187860A (en) 1984-10-05 1984-10-05 Production of composite material

Country Status (1)

Country Link
JP (1) JPS6187860A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63235448A (en) * 1987-03-23 1988-09-30 Tokin Corp Composite magnetic wire rod
JPS6442562A (en) * 1987-08-07 1989-02-14 Tokin Corp Composite magnetic wire and production thereof
US5211776A (en) * 1989-07-17 1993-05-18 General Dynamics Corp., Air Defense Systems Division Fabrication of metal and ceramic matrix composites

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63235448A (en) * 1987-03-23 1988-09-30 Tokin Corp Composite magnetic wire rod
JPS6442562A (en) * 1987-08-07 1989-02-14 Tokin Corp Composite magnetic wire and production thereof
US5211776A (en) * 1989-07-17 1993-05-18 General Dynamics Corp., Air Defense Systems Division Fabrication of metal and ceramic matrix composites

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