JPH06299276A - Ti-Al alloy parts - Google Patents
Ti-Al alloy partsInfo
- Publication number
- JPH06299276A JPH06299276A JP8332193A JP8332193A JPH06299276A JP H06299276 A JPH06299276 A JP H06299276A JP 8332193 A JP8332193 A JP 8332193A JP 8332193 A JP8332193 A JP 8332193A JP H06299276 A JPH06299276 A JP H06299276A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- alloy
- piston head
- present
- effect
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/02—Light metals
- F05C2201/021—Aluminium
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
(57)【要約】
【目的】 高強度、耐熱性に優れ、軽量化可能なＴｉ−
Ａｌ合金製部品を提供する。
【構成】 Ｔｉ−Ａｌ合金製部品は、主Ａｌ：３２〜３
６重量％、残部ＴｉからなるＴｉ−Ａｌ金属間化合物で
ある。前記合金組成に加えて、Ｎｂ、Ｔａ、Ｍｏ、Ｗの
１種以上の元素を合計量で０．２〜６．０重量％含有す
る。このＴｉ−Ａｌ合金製部品、例えばピストンヘッド
では、高強度、軽量かつ耐熱性に優れた部品を作製する
ことができる。(57) [Summary] [Purpose] High strength, heat resistance, and lightweight Ti-
An Al alloy part is provided. [Structure] Ti-Al alloy parts are mainly Al: 32 to 3
It is a Ti-Al intermetallic compound consisting of 6% by weight and the balance Ti. In addition to the alloy composition, it contains one or more elements of Nb, Ta, Mo and W in a total amount of 0.2 to 6.0% by weight. With this Ti-Al alloy component, for example, a piston head, a component having high strength, light weight, and excellent heat resistance can be manufactured.
Description
【０００１】[0001]
【産業上の利用分野】本発明は、耐熱性に優れたＴｉ−
Ａｌ合金製部品に関する。FIELD OF THE INVENTION The present invention relates to Ti-
The present invention relates to Al alloy parts.
【０００２】[0002]
【従来の技術】例えば自動車においては、エンジンの効
率化や近年の排ガス規制に対応するため、軽量で高強度
および耐熱性に優れた部品、例えばエンジンに使用され
る動力部品であるピストンヘッド、ピストンピン、コン
ロッド、エンジンバルブの要求が増加している。2. Description of the Related Art In automobiles, for example, parts that are lightweight and have high strength and heat resistance, such as piston heads and pistons, which are power parts used in engines, in order to cope with engine efficiency and recent emission regulations. Demand for pins, connecting rods and engine valves is increasing.
【０００３】従来、この種の高強度、耐熱性部品とし
て、例えばピストンヘッドでは、鋳鉄、Ａｌ合金が知ら
れている。このうち鋳鉄製ピストンヘッドは価格も安い
上に、シリンダーと同じ熱膨張係数をもっていること
や、鋳鉄自身の潤滑性などから摩耗も少ない。これに対
し、Ａｌ合金製ピストンヘッドでは、Ａｌと鉄の比重
が、鉄：７．２に対しＡｌ：２．８であり、また熱伝導
率はＡｌのほうが鋳鉄の約３倍大きい値である。以上の
ことからＡｌ合金製ピストンヘッドが鋳鉄製ピストンヘ
ッドに比べていかに軽く、そしていかに熱を早く外に逃
すか判る。Conventionally, cast iron and Al alloy have been known as high-strength and heat-resistant parts of this kind, for example, in piston heads. Of these, the cast iron piston head is inexpensive and has less wear due to the same coefficient of thermal expansion as the cylinder and the lubricity of the cast iron itself. On the other hand, in the Al alloy piston head, the specific gravity of Al and iron is Al: 2.8 with respect to iron: 7.2, and the thermal conductivity of Al is about three times larger than that of cast iron. . From the above, it can be seen that the Al alloy piston head is significantly lighter than the cast iron piston head, and how quickly heat is released to the outside.
【０００４】[0004]
【発明が解決しようとする課題】しかし、前記鋳鉄を使
用する部品では、相対的に重いために慣性力が大きくな
り、高速往復運動が必要とされる動力部品には適さない
上、熱伝導も悪く、混合気が自然着火し易いなどの問題
がある。また、Ａｌ合金を使用する部品では、鋳鉄に比
べ耐熱性が低いため、高温での使用ができないという問
題がある。However, the parts using cast iron have a large inertial force because they are relatively heavy, and are not suitable for power parts that require high-speed reciprocating motion, and also have heat conduction. It is bad, and there is a problem that the air-fuel mixture spontaneously ignites. Further, the parts using the Al alloy have lower heat resistance than cast iron, so that there is a problem that they cannot be used at high temperatures.
【０００５】本発明は、上記問題を解決するためになさ
れたもので、その目的とするところは、軽量かつ耐熱性
に優れ、室温延性の良好なＴｉ−Ａｌ合金製部品を提供
することにある。The present invention has been made to solve the above problems, and an object of the present invention is to provide a Ti-Al alloy part which is lightweight, has excellent heat resistance, and has good room temperature ductility. .
【０００６】[0006]
【課題を解決するための手段】前記課題を解決するため
の本発明の第１の発明によるＴｉ−Ａｌ合金製部品は、
Ａｌ：３２〜３６重量％、残部Ｔｉからなる金属間化合
物であることを特徴とする。本発明の第２発明によるの
Ｔｉ−Ａｌ合金製部品は、前記合金の組成に加えて、Ｎ
ｂ、Ｔａ、Ｍｏ、Ｗの１種以上の元素を合計量で０．２
〜６．０重量％含有することを特徴とする。A Ti-Al alloy part according to the first aspect of the present invention for solving the above-mentioned problems is
Al: An intermetallic compound consisting of 32 to 36% by weight and the balance Ti. The Ti-Al alloy part according to the second aspect of the present invention is characterized in that, in addition to the composition of the alloy,
b, Ta, Mo, W one or more elements in a total amount of 0.2
.About.6.0% by weight.
【０００７】本発明の第３発明によるＴｉ−Ａｌ合金製
部品は、前記第１、第２発明の合金の組成に加えて、Ｃ
ｒ、Ｍｎの１種以上の元素を合計量で０．２〜６．０重
量％含有することを特徴とする。さらに、本発明の第４
発明によるＴｉ−Ａｌ合金製部品は、前記第１、第２、
第３発明の合金合金の組成に加えて、Ｖ：０．１〜３．
０重量％、 Ｓｉ：０．０１〜１．０重量％、Ｚｒ：
０．０１〜１．０重量％、 Ｃ：０．０１〜０．５重
量％、Ｂ：０．０１〜０．５重量％のうちの１種以上の
元素を含有することを特徴とする。The Ti-Al alloy component according to the third invention of the present invention is C-component in addition to the alloy composition of the first and second inventions.
It is characterized by containing one or more elements of r and Mn in a total amount of 0.2 to 6.0% by weight. Furthermore, the fourth aspect of the present invention
The Ti-Al alloy component according to the invention comprises the first, second, and
In addition to the alloy composition of the third invention, V: 0.1-3.
0% by weight, Si: 0.01 to 1.0% by weight, Zr:
It is characterized by containing at least one element of 0.01 to 1.0% by weight, C: 0.01 to 0.5% by weight, and B: 0.01 to 0.5% by weight.
【０００８】前記第１、第２、第３、第４の発明による
Ｔｉ−Ａｌ合金の組成を前記のとおり限定したのは、次
の理由による。Ａｌは、Ｔｉとともに金属間化合物Ｔｉ
ＡｌおよびＴｉ3 Ａｌを構成する必須の元素でありＡｌ
含有量が３２重量％未満では、Ｔｉ3 Ａｌの生成量が多
くなりすぎて延性および靭性が低下するとともに耐酸化
性も劣る。また、Ａｌ含有量が３６重量％を超えるとＴ
ｉＡｌ単相化したり、またはＡｌ3 Ｔｉの生成量が多く
なり、延性および靭性が低下する。The composition of the Ti--Al alloy according to the first, second, third and fourth inventions is limited as described above for the following reason. Al is an intermetallic compound Ti together with Ti.
Al and Ti 3 Al, which is an essential element that constitutes Al
When the content is less than 32% by weight, the amount of Ti 3 Al produced is too large, which reduces ductility and toughness and also deteriorates oxidation resistance. Further, when the Al content exceeds 36% by weight, T
The iAl single phase is formed or the amount of Al 3 Ti produced is increased, and the ductility and toughness are reduced.
【０００９】Ｎｂ、Ｔａ、Ｍｏ、Ｗは、ＴｉＡｌの耐酸
化性を改善させる元素である。この効果を得るためには
０．２重量％以上の添加量が必要であり、６．０重量％
を超えるとこの効果は飽和する傾向がある。またこれら
の元素は比重が大きく、高価であるため、多量の添加は
材料の比重を大きくするばかりかコストを上昇させる結
果となる。Nb, Ta, Mo and W are elements that improve the oxidation resistance of TiAl. To obtain this effect, it is necessary to add 0.2% by weight or more, and 6.0% by weight.
Above, this effect tends to saturate. Further, since these elements have a large specific gravity and are expensive, addition of a large amount results in not only increasing the specific gravity of the material but also increasing the cost.
【００１０】Ｃｒ、Ｍｎは、ＴｉＡｌの延性を改善する
元素である。この効果を得るためには添加量０．２重量
％以上が必要であり、また６．０重量％を超えるとその
効果は飽和し、むしろ延性が低下する傾向があるととも
に、耐酸化性が劣化する。Ｖは、ＴｉＡｌに固溶してＴ
ｉＡｌの強度を上げる効果がある。この効果を得るため
には、０．１重量％以上の添加が必要であり、３．０重
量％を超えると効果は飽和する。Cr and Mn are elements that improve the ductility of TiAl. To obtain this effect, it is necessary to add 0.2% by weight or more, and if it exceeds 6.0% by weight, the effect is saturated and the ductility tends to decrease, and the oxidation resistance deteriorates. To do. V is a solid solution in TiAl and T
It has the effect of increasing the strength of iAl. In order to obtain this effect, it is necessary to add 0.1% by weight or more, and if it exceeds 3.0% by weight, the effect is saturated.
【００１１】Ｓｉは、ＴｉＡｌ中に固溶し、時効熱処理
によりシリサイドとして析出する。また過飽和のＳｉは
凝固時にシリサイドとして最終凝固部に晶出する。これ
らのシリサイドは引張強度およびクリープ強度を改善す
る。このような効果は０．０１重量％以上で得られる。
また、１．０重量％を超える添加はシリサイドが多量に
生成し、延性および靭性に欠けるＴｉ−Ａｌ合金性部品
となる。Si is solid-solved in TiAl and is precipitated as silicide by aging heat treatment. Further, supersaturated Si crystallizes in the final solidified portion as silicide during solidification. These silicides improve tensile strength and creep strength. Such an effect is obtained at 0.01% by weight or more.
Further, addition of more than 1.0% by weight produces a large amount of silicide, resulting in a Ti—Al alloy component lacking in ductility and toughness.
【００１２】Ｚｒは、ＴｉＡｌに固溶し、強度を向上さ
せる。この効果を得るためには、０．０１重量％以上の
添加が必要であり、１．０重量％を超えると効果は飽和
する。Ｃは、ＴｉＡｌに固溶し、ＴｉＡｌの強度を上げ
る効果がある。この効果を得るためには、０．０１重量
％以上の添加が必要であり、０．５重量％を超える添加
は延性が著しく低下する。Zr forms a solid solution in TiAl and improves the strength. In order to obtain this effect, it is necessary to add 0.01% by weight or more, and if it exceeds 1.0% by weight, the effect is saturated. C has the effect of forming a solid solution in TiAl and increasing the strength of TiAl. In order to obtain this effect, addition of 0.01% by weight or more is necessary, and addition of more than 0.5% by weight remarkably reduces ductility.
【００１３】Ｂは、凝固時にボライトとして晶出し、結
晶粒を微細化する効果がある。この効果を得るために
は、０．０１重量％以上の添加が必要であり、０．５重
量％を超える添加は、ボライドが多くなり、延性および
脆性が低下する。B has the effect of crystallizing as borite during solidification and refining the crystal grains. In order to obtain this effect, it is necessary to add 0.01% by weight or more, and if it exceeds 0.5% by weight, boride increases and ductility and brittleness decrease.
【００１４】[0014]
【発明の作用および効果】本発明のＴｉ−Ａｌ合金製部
品は、比重が３．８とＴｉ合金よりも小さく、高温強度
はＮｉ基超合金と同程度であり、鋳鉄、鋳鋼および鍛鋼
に比べ高強度で破損しにくい効果があるとともに、軽量
かつ耐熱性に著しく優れた効果がある。The Ti-Al alloy component of the present invention has a specific gravity of 3.8, which is smaller than that of the Ti alloy, and has a high temperature strength comparable to that of the Ni-base superalloy, and is superior to cast iron, cast steel and forged steel. It has high strength and is less likely to be damaged, and is also lightweight and has excellent heat resistance.
【００１５】[0015]
【実施例】以下、本発明の実施例を説明する。 第１実施例 本発明の第１実施例で用いたＴｉ−Ａｌ合金材料の化学
成分は表１のとおりである。EXAMPLES Examples of the present invention will be described below. First Example Table 1 shows the chemical composition of the Ti-Al alloy material used in the first example of the present invention.
【００１６】[0016]
【表１】 前記表１に示す組成をもつＴｉ−Ａｌ合金材料の試験片
は、次のようにして作製した。試料５ｋｇをプラズマス
カル溶解炉を用いて溶解し、溶湯を金型に鋳造して直径
１００ｍｍのインゴットを鋳造した。その後、インゴッ
トから平行部径６ｍｍの室温引張試験片、平行部８ｍｍ
の回転曲げ疲労試験片および直径８ｍｍのピンオンディ
スク摩耗試験片を作成した。[Table 1] A test piece of Ti-Al alloy material having the composition shown in Table 1 was prepared as follows. 5 kg of the sample was melted using a plasma skull melting furnace, and the molten metal was cast into a mold to cast an ingot having a diameter of 100 mm. Then, a room temperature tensile test piece with a parallel part diameter of 6 mm and a parallel part 8 mm from the ingot.
A rotating bending fatigue test piece and a pin-on-disc wear test piece having a diameter of 8 mm were prepared.
【００１７】これらの試験片を用いて、引張試験および
疲労試験を５００℃で、ピンオンディスク摩耗試験を室
温で実施した。ピンオンディスク摩耗試験の相手材には
軸受鋼ＳＵＪ２を用いた。また荷重５ｋｇ、滑り速度
１．０ｍｍ／ｓ、時間７ｈｒで実施した。Using these test pieces, a tensile test and a fatigue test were carried out at 500 ° C., and a pin-on-disk wear test was carried out at room temperature. Bearing steel SUJ2 was used as the mating material for the pin-on-disc wear test. The load was 5 kg, the sliding speed was 1.0 mm / s, and the time was 7 hours.
【００１８】[0018]
【表２】 表２の結果から本発明材は比較材に比べ強度、疲労およ
び耐摩耗性に優れていることが判り、本発明合金製部材
が耐熱性、耐摩耗性を要求される部材に適用可能である
ということがいえる。 第２実施例 本発明に係るＴｉ−Ａｌ合金でピストンヘッドを作製し
た。詳細を図１に示す。また、断面ＡＡから見たピスト
ンヘッド断面を図２に示す。[Table 2] From the results in Table 2, it is found that the material of the present invention is superior in strength, fatigue and wear resistance to the comparative material, and the alloy member of the present invention can be applied to a member requiring heat resistance and wear resistance. That can be said. Second Example A piston head was made of the Ti-Al alloy according to the present invention. Details are shown in FIG. Further, a cross section of the piston head viewed from the cross section AA is shown in FIG.
【００１９】本実施例のＴｉ−Ａｌ合金製部品をピスト
ンヘッド１として使用したところ、軽量かつ高強度、耐
熱性に優れ、従来の鋳鉄製ピストンヘッドに比べ、約１
／２の軽量化が可能となり、また、使用温度を５００℃
まで上げることが可能となった。また、性能試験後のピ
ストンヘッドには、損傷は認められずピストンヘッドと
しての信頼性が高いことが確認された。When the Ti-Al alloy component of this embodiment is used as the piston head 1, it is lightweight, high in strength and excellent in heat resistance, and is about 1 in comparison with the conventional cast iron piston head.
/ 2 weight reduction is possible, and the operating temperature is 500 ° C
It has become possible to raise. Moreover, no damage was observed in the piston head after the performance test, and it was confirmed that the piston head has high reliability.
【００２０】なお、本発明に係るＴｉ−Ａｌ合金製ピス
トンヘッドをエンジンに適用することにより、エンジン
の軽量化と高出力化をはかれる。By applying the Ti-Al alloy piston head according to the present invention to an engine, it is possible to reduce the weight and increase the output of the engine.
【図１】本発明の第２実施例によるピストンヘッドの縦
断面図である。FIG. 1 is a vertical sectional view of a piston head according to a second embodiment of the present invention.
【図２】本発明の第２実施例によるピストンヘッドの縦
断面のＡ−Ａ線断面図である。FIG. 2 is a cross-sectional view taken along line AA of a vertical cross section of a piston head according to a second embodiment of the present invention.
Claims (4)
なる金属間化合物であることを特徴とするＴｉ−Ａｌ合
金製部品。1. A Ti-Al alloy component, which is an intermetallic compound consisting of Al: 32-36% by weight and the balance Ti.
Ｎｂ、Ｔａ、Ｍｏ、Ｗの１種以上の元素を合計量で０．
２〜６．０重量％含有することを特徴とする請求項１記
載のＴｉ−Ａｌ合金製部品。2. In addition to the composition of the alloy of claim 1,
The total amount of one or more elements of Nb, Ta, Mo, and W is 0.
The content of the Ti-Al alloy according to claim 1 is 2 to 6.0% by weight.
加えて、Ｃｒ、Ｍｎの１種以上の元素を合計量で０．２
〜６．０重量％含有することを特徴とする請求項１また
は２記載のＴｉ−Ａｌ合金製部品。3. In addition to the composition of the alloy according to claim 1 or 2, the total amount of one or more elements of Cr and Mn is 0.2.
The content of Ti-Al alloy according to claim 1 or 2, characterized in that
合金の組成に加えて、 Ｖ：０．１〜３．０重量％、 Ｓｉ：０．０１〜１．
０重量％、 Ｚｒ：０．０１〜１．０重量％、 Ｃ：０．０１〜
０．５重量％、 Ｂ：０．０１〜０．５重量％ のうちの１種以上の元素を含有することを特徴とする請
求項１、２、３のいずれか一項記載のＴｉ−Ａｌ合金製
部品。4. In addition to the composition of the alloy according to claim 1, V: 0.1 to 3.0% by weight, Si: 0.01 to 1.
0% by weight, Zr: 0.01 to 1.0% by weight, C: 0.01 to
0.5% by weight, B: 0.01 to 0.5% by weight, and at least one element is contained, Ti-Al according to any one of claims 1, 2 and 3. Alloy parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8332193A JPH06299276A (en) | 1993-04-09 | 1993-04-09 | Ti-Al alloy parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8332193A JPH06299276A (en) | 1993-04-09 | 1993-04-09 | Ti-Al alloy parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06299276A true JPH06299276A (en) | 1994-10-25 |
Family
ID=13799167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8332193A Pending JPH06299276A (en) | 1993-04-09 | 1993-04-09 | Ti-Al alloy parts |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06299276A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996030552A1 (en) * | 1995-03-28 | 1996-10-03 | Alliedsignal Inc. | Castable gamma titanium-aluminide alloy containing niobium, chromium and silicon |
| US20130251537A1 (en) * | 2012-03-24 | 2013-09-26 | General Electric Company | Titanium aluminide intermetallic compositions |
| WO2014136973A1 (en) * | 2013-03-08 | 2014-09-12 | 出光興産株式会社 | Lubricating-oil composition |
| WO2014136970A1 (en) * | 2013-03-08 | 2014-09-12 | 出光興産株式会社 | Lubricating-oil composition |
| WO2015119927A1 (en) * | 2014-02-05 | 2015-08-13 | Borgwarner Inc. | TiAl ALLOY, IN PARTICULAR FOR TURBOCHARGER APPLICATIONS, TURBOCHARGER COMPONENT, TURBOCHARGER AND METHOD FOR PRODUCING THE TiAl ALLOY |
| WO2017184756A1 (en) * | 2016-04-20 | 2017-10-26 | Arconic Inc. | Hcp materials of aluminum, titanium, and zirconium, and products made therefrom |
| CN116690112A (en) * | 2023-05-26 | 2023-09-05 | 季华实验室 | TiAl alloy valve rod and preparation method thereof |
-
1993
- 1993-04-09 JP JP8332193A patent/JPH06299276A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996030552A1 (en) * | 1995-03-28 | 1996-10-03 | Alliedsignal Inc. | Castable gamma titanium-aluminide alloy containing niobium, chromium and silicon |
| US20130251537A1 (en) * | 2012-03-24 | 2013-09-26 | General Electric Company | Titanium aluminide intermetallic compositions |
| JP2013209750A (en) * | 2012-03-24 | 2013-10-10 | General Electric Co <Ge> | Titanium aluminide intermetallic compositions |
| US10597756B2 (en) * | 2012-03-24 | 2020-03-24 | General Electric Company | Titanium aluminide intermetallic compositions |
| JPWO2014136970A1 (en) * | 2013-03-08 | 2017-02-16 | 出光興産株式会社 | Lubricating oil composition |
| CN105189720A (en) * | 2013-03-08 | 2015-12-23 | 出光兴产株式会社 | lubricating oil composition |
| JPWO2014136973A1 (en) * | 2013-03-08 | 2017-02-16 | 出光興産株式会社 | Lubricating oil composition |
| WO2014136970A1 (en) * | 2013-03-08 | 2014-09-12 | 出光興産株式会社 | Lubricating-oil composition |
| JP2018199836A (en) * | 2013-03-08 | 2018-12-20 | 出光興産株式会社 | Lubricating oil composition |
| WO2014136973A1 (en) * | 2013-03-08 | 2014-09-12 | 出光興産株式会社 | Lubricating-oil composition |
| WO2015119927A1 (en) * | 2014-02-05 | 2015-08-13 | Borgwarner Inc. | TiAl ALLOY, IN PARTICULAR FOR TURBOCHARGER APPLICATIONS, TURBOCHARGER COMPONENT, TURBOCHARGER AND METHOD FOR PRODUCING THE TiAl ALLOY |
| US10240608B2 (en) | 2014-02-05 | 2019-03-26 | Borgwarner Inc. | TiAl alloy, in particular for turbocharger applications, turbocharger component, turbocharger and method for producing the TiAl alloy |
| WO2017184756A1 (en) * | 2016-04-20 | 2017-10-26 | Arconic Inc. | Hcp materials of aluminum, titanium, and zirconium, and products made therefrom |
| CN108884518A (en) * | 2016-04-20 | 2018-11-23 | 奥科宁克公司 | The HCP material of aluminium, titanium and zirconium and the product being made from it |
| RU2713668C1 (en) * | 2016-04-20 | 2020-02-06 | Арконик Инк. | Materials with hca structure based on aluminium, titanium and zirconium and articles made therefrom |
| CN116690112A (en) * | 2023-05-26 | 2023-09-05 | 季华实验室 | TiAl alloy valve rod and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4834941A (en) | Heat-resisting high-strength Al-alloy and method for manufacturing a structural member made of the same alloy | |
| JP5859440B2 (en) | Steel pistons for internal combustion engines | |
| US20190169716A1 (en) | High temperature cast aluminum alloy for cylinder heads | |
| JP4914225B2 (en) | Aluminum alloy material, its production method and its use | |
| JPH1112674A (en) | Aluminum alloy and aluminum alloy piston for internal combustion engine piston | |
| JP6028546B2 (en) | Aluminum alloy | |
| JP2789759B2 (en) | Ti alloy engine valve | |
| EP0924310B1 (en) | Aluminium alloy containing silicon for use as pistons in automobiles | |
| JPH0625791A (en) | High-strength magnesium alloy | |
| US5169462A (en) | Low density aluminum alloy for engine pistons | |
| JPH06299276A (en) | Ti-Al alloy parts | |
| JP3164587B2 (en) | Alloys with excellent thermal fatigue resistance, aluminum alloys with excellent thermal fatigue resistance, and aluminum alloy members with excellent thermal fatigue resistance | |
| JP2000054053A (en) | Aluminum base alloy excellent in heat resistance and method for producing the same | |
| JP2004225121A (en) | Die casting alloy for piston | |
| JP3303661B2 (en) | Heat resistant high strength aluminum alloy | |
| JP2006328482A (en) | Forged piston | |
| JPH02221349A (en) | Lightweight casting material | |
| JP2923578B2 (en) | Wear resistant aluminum alloy | |
| JP2592440B2 (en) | Ti-Al lightweight heat and oxidation resistant material | |
| JPH1017975A (en) | Aluminum alloy for casting | |
| JPH0361743B2 (en) | ||
| JPH0588294B2 (en) | ||
| JP2564489B2 (en) | Rocker arm with high strength, high toughness and wear resistance | |
| JP2686140B2 (en) | Alloy for high temperature bolt and method for producing the same | |
| JPH03226547A (en) | High toughness fe-al intermetallic compound material |