JPH03197630A - Method for hot-working intermetallic compound ti-al base alloy - Google Patents
Method for hot-working intermetallic compound ti-al base alloyInfo
- Publication number
- JPH03197630A JPH03197630A JP33579189A JP33579189A JPH03197630A JP H03197630 A JPH03197630 A JP H03197630A JP 33579189 A JP33579189 A JP 33579189A JP 33579189 A JP33579189 A JP 33579189A JP H03197630 A JPH03197630 A JP H03197630A
- Authority
- JP
- Japan
- Prior art keywords
- processing
- hot
- alloy
- intermetallic compound
- sheath 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
- 239000000956 alloy Substances 0.000 title claims abstract description 26
- 229910000765 intermetallic Inorganic materials 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims description 14
- 229910045601 alloy Inorganic materials 0.000 title abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 33
- 229910001069 Ti alloy Inorganic materials 0.000 claims abstract description 20
- 229910010038 TiAl Inorganic materials 0.000 claims description 11
- 150000001875 compounds Chemical class 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 238000005242 forging Methods 0.000 abstract description 7
- 239000012535 impurity Substances 0.000 abstract description 3
- 238000005098 hot rolling Methods 0.000 abstract description 2
- 229910052719 titanium Inorganic materials 0.000 abstract description 2
- 229910004349 Ti-Al Inorganic materials 0.000 abstract 2
- 229910004692 Ti—Al Inorganic materials 0.000 abstract 2
- 229910021362 Ti-Al intermetallic compound Inorganic materials 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000005336 cracking Methods 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 5
- 239000010936 titanium Substances 0.000 description 5
- 238000003672 processing method Methods 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 1
- 229910002056 binary alloy Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 238000001192 hot extrusion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000009721 upset forging Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Forging (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は金属間化合物ＴｉＡｌ１基合金材料の熱間加工
法に係り、特に将来的に軽量耐熱材料として宇宙・航空
分野等での用途が期待されるＴｉＡｊ！基合金材料を熱
間加工機でシース加工法によって成形する方法に関する
ものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a hot working method for an intermetallic compound TiAl single-base alloy material, and is particularly expected to find use in the space and aviation fields as a lightweight heat-resistant material in the future. TiAj to be done! The present invention relates to a method of forming a base alloy material by a sheath processing method using a hot processing machine.
金属間化合物ＴｉＡｌ基合金材料は軽量で優れた高温強
度を有するため、宇宙・航空分野において構造用材料等
への応用が期待されている。Since intermetallic compound TiAl-based alloy materials are lightweight and have excellent high-temperature strength, they are expected to be applied to structural materials in the aerospace and aviation fields.
金属間化合物Ｔｉｌ基合金材料は常温延性及び高温での
変形能が低いため加工が困難で実用化されていない。Intermetallic compound Til-based alloy materials have low room temperature ductility and low deformability at high temperatures, making them difficult to process and have not been put to practical use.
従来、ＴｉＡｊ２基合金材料の加工法として恒温鍛造法
を利用する方法が知られている。例えば特開昭６３−１
７１８６２号公報にＴｉＡｌ基耐熱合金の製造方法が開
示されている。この方法は、試料だけでなく加工用ダイ
スも８００〜１１００℃の恒温に保持して、比較的遅い
歪み速度で加工することにより、割れを防止する方法で
ある。Conventionally, a method using constant temperature forging is known as a processing method for TiAj binary alloy material. For example, JP-A-63-1
No. 71862 discloses a method for producing a TiAl-based heat-resistant alloy. This method prevents cracking by maintaining not only the sample but also the processing die at a constant temperature of 800 to 1100° C. and processing at a relatively slow strain rate.
また特開昭６１−２１３３６１号公報にＴｉＡｊ！基合
金材料の周囲を被覆するシース材を用いて熱間加工を行
う方法が開示されている。この方法ではＮｉ系、ＣＯ系
あるいはＦｅ−Ｎｉ系の耐熱合金がシース材として用い
られている。Also, TiAj! A method of performing hot working using a sheath material surrounding a base alloy material is disclosed. In this method, a Ni-based, CO-based, or Fe-Ni-based heat-resistant alloy is used as the sheath material.
上記恒温鍛造を用いる熱間加工法では素材の酸化防止と
高温保持、加工用ダイスの高温強度保持のため加工装置
が大型になるばかりか素材と加工用ダイスとの反応を防
止する必要がある。In the above-mentioned hot processing method using constant temperature forging, the processing equipment not only becomes large in order to prevent oxidation of the material, maintain high temperature, and maintain high temperature strength of the processing die, but also requires prevention of reaction between the material and the processing die.
また上記第２の方法である、Ｎｌ系、Ｃｏ系あるいはＦ
ｅ−Ｎｉ系耐熱合金をシース材として用いる熱間加工方
法では、材料中心部では５０％程度の加工率が得られる
ものの、端部を中心に割れが生じるため、大きな歩留り
低下が避けられない。In addition, in the second method mentioned above, Nl-based, Co-based or F-based
In a hot working method using an e-Ni heat-resistant alloy as a sheath material, a processing rate of about 50% can be obtained at the center of the material, but cracks occur mainly at the edges, so a large decrease in yield is unavoidable.
特に、加工率が６０％を超えると、割れが変形よりも優
先するため、実際上加工が不可能となる。In particular, when the processing rate exceeds 60%, cracking takes precedence over deformation, making processing practically impossible.
本発明は、通常の熱間加工方法を用いて、軽微な割れも
生じることなく、６０％程度までの加工率を得ることが
可能な、金属間化合物ＴｉＡｊ７基合金材料の熱間加工
方法を提供することを目的とする。The present invention provides a method for hot working an intermetallic compound TiAj 7-based alloy material, which can obtain a processing rate of up to about 60% without producing any minor cracks using a normal hot working method. The purpose is to
上記課題は本発明によれば被加工材を被覆するシース材
を用いて金属間化合物ＴｉＡｌ基合金材料を熱間加工す
る際に、前記シース材としてチタン合金を用い１０００
℃以上の温度で加工することを特徴とする金属間化合物
ＴｉＡｌ基合金材料の熱間加工法によって解決される。According to the present invention, the above problem can be solved by using a titanium alloy as the sheath material when hot working an intermetallic compound TiAl-based alloy material using a sheath material that covers a workpiece.
The problem is solved by a hot working method for intermetallic compound TiAl-based alloy materials, which is characterized by working at a temperature of .degree. C. or higher.
本発明の金属間化合物ＴｉＡｌ基合金材料は、Ｔｉを６
０〜７０重量％、Ａｌを３０〜４０重量％含有しており
、Ｔｉ、Ａｌおよび不可避的不純物元素からなる二元系
のＴｉＡｌ金属間化合物の他、機械的性質や組織微細化
を図る目的で１種以上の第３元素を添加した組成の合金
をも含んでいる。またシース材としてチタン合金を用い
る第１の理由は１０００℃以上での変形抵抗が比較的高
く且つ加工性に優れているためである。特にβ型チタン
合金がその特性を有する。The intermetallic compound TiAl-based alloy material of the present invention contains 6 Ti
It contains 0 to 70% by weight and 30 to 40% by weight of Al, and is a binary TiAl intermetallic compound consisting of Ti, Al and inevitable impurity elements, as well as for the purpose of improving mechanical properties and microstructural refinement. It also includes alloys with compositions to which one or more third elements are added. The first reason for using a titanium alloy as the sheath material is that it has relatively high deformation resistance at temperatures of 1000° C. or higher and is excellent in workability. In particular, β-type titanium alloys have this characteristic.
またシース材としてチタン合金を用いる第２の理由はチ
タン合金は熱伝導性が極めて低いため加熱炉から取り出
して加工する迄の温度低下あるいは金型や圧延ロールな
ど加工機との接触による温度低下が小さくシースした試
料を加工終了時上高温に保持できるためである。更に第
３の理由としてチタン合金は１０００℃以上の高温では
酸化が激しくそのために加熱中にチタンの酸化物が大量
に形成され、このチタン酸化物が温度低下を防止するた
めである。本発明に用いるチタン合金はＴｉ−１５Ｖ−
３＾１！ −５Ｃｒ −５Ｓｎ、 Ｔｉ −３Ａ Ｉ
−３Ｖ−６Ｃｒ −４Ｍ。The second reason why titanium alloy is used as a sheath material is that titanium alloy has extremely low thermal conductivity, so the temperature drop between taking it out of the heating furnace and processing it, or due to contact with processing machines such as molds and rolling rolls, is very low. This is because a small sheathed sample can be kept at a high temperature at the end of processing. A third reason is that titanium alloys undergo severe oxidation at high temperatures of 1000° C. or higher, and as a result, a large amount of titanium oxide is formed during heating, and this titanium oxide prevents the temperature from decreasing. The titanium alloy used in the present invention is Ti-15V-
3^1! -5Cr -5Sn, Ti -3A I
-3V-6Cr-4M.
４Ｚ直通称β−Ｃ）、及びＴｉ−１３Ｖ−１１Ｃｒ−３
＾β等のβ型チタン合金が好ましいが、Ｔｉ−６Ａβ−
４Ｖ等のα＋β型チタン合金も使用出来る。また熱間加
工としては熱間鍛造、熱間圧延、熱間押出し等が可能で
ある。本発明では、シース材として上記チタン合金を用
いて、１０００℃以上の温度で加工する。これは、Ｔｉ
Ａｌ基合金材料は１０００℃以上で強度の低下と延性の
著しい増加を示し、加工性が著しく増大するためである
。4Z direct name β-C), and Ti-13V-11Cr-3
β-type titanium alloys such as ^β are preferred, but Ti-6Aβ-
α+β type titanium alloys such as 4V can also be used. Further, as hot working, hot forging, hot rolling, hot extrusion, etc. are possible. In the present invention, the titanium alloy described above is used as the sheath material and processed at a temperature of 1000° C. or higher. This is Ti
This is because Al-based alloy materials show a decrease in strength and a significant increase in ductility at temperatures above 1000°C, resulting in a significant increase in workability.
以下本発明の実施例を図面に基づいて説明する。 Embodiments of the present invention will be described below based on the drawings.
素材としてＡｌ２３３．４重量％、Ｃｒ４．２重量％残
部Ｔｉおよび不可避的不純物からなる金属間化合物Ｔｉ
Ａｌ基合金材料をプラズマアーク溶解によりインゴット
を鋳造し、第１図に示したように直径１００ｍｍ、高さ
２０闘の円柱状試験片を切り出し、試験に供した。As a material, an intermetallic compound consisting of 33.4% by weight of Al, 4.2% by weight of Cr, balance Ti, and unavoidable impurities.
An ingot was cast from an Al-based alloy material by plasma arc melting, and a cylindrical test piece with a diameter of 100 mm and a height of 20mm was cut out as shown in FIG. 1 and used for testing.
その試料を、第２図に示したように直径１００ｍｍ高さ
２０ｍｆｌｌのシースのフタ２と、第３図に示した円柱
空洞３を有する円筒面４からなるシースを用い第４図に
示すように封入して据え込み鍛造した。The sample was prepared as shown in FIG. 4 using a sheath consisting of a sheath lid 2 with a diameter of 100 mm and a height of 20 m full as shown in FIG. 2, and a cylindrical surface 4 having a cylindrical cavity 3 shown in FIG. It was sealed and upset forged.
シース材としては従来のＣｏ基耐熱合金（３８１６）と
本発明に係るＴｉ−１５シー３Ｃｒ −５Ｓｎ −３１
及びＴｉ−３Ａβ−８Ｖ−６Ｃｒ−４Ｍｏ−４２ｒを使
用した。円筒面４内へ試料１を入れフタ２をして円筒面
４とフタ２とをＴＩＧ溶接により接合し、ＴｉＡｌ基合
金試料１を密封し、鍛造試料とした。第４図は試料１を
シース材に封入した断面図を示す。大気雰囲気の加熱炉
で所定の温度まで加熱後、２０分間保持して、その後初
期歪み速度３毎秒で据え込み鍛造を行った。シース材、
加工温度を圧下率を変えて、大気中で加工した場合の結
果を第１表に、真空で加工した場合の結果を第２表に示
す。As sheath materials, a conventional Co-based heat-resistant alloy (3816) and Ti-15 seam 3Cr-5Sn-31 according to the present invention were used.
and Ti-3Aβ-8V-6Cr-4Mo-42r were used. The sample 1 was put into the cylindrical surface 4, the lid 2 was put on, and the cylindrical surface 4 and the lid 2 were joined by TIG welding, and the TiAl-based alloy sample 1 was sealed to obtain a forged sample. FIG. 4 shows a cross-sectional view of sample 1 enclosed in a sheath material. After heating to a predetermined temperature in a heating furnace in an atmospheric atmosphere, it was held for 20 minutes, and then upset forging was performed at an initial strain rate of 3 per second. sheath material,
Table 1 shows the results when processing was performed in the atmosphere while changing the processing temperature and rolling reduction rate, and Table 2 shows the results when processing was performed in vacuum.
表中圧下率とはＴｉＡｌ材を封入したシース材が加工さ
れた時のシース材の変形を含む全加工率であり、加工率
とは前記圧下率を付与した時のＴｉｉ材の加工率を示す
。The rolling reduction rate in the table is the total processing rate including the deformation of the sheath material when the sheath material encapsulating the TiAl material is processed, and the processing rate indicates the processing rate of the Tii material when the above rolling reduction rate is applied. .
シース材として従来の８８１６を用い、加工温度を１２
００℃として据え込み鍛造を行った例を比較例１とし、
一方シース材としてＴｉ −１３Ｖ −５Ｃｒ −５Ｓ
ｎ −３Ａβ（チタン合金１）とし加工温度を１２００
℃として据え込み鍛造を行った例を実施例１とする。Conventional 8816 was used as the sheath material, and the processing temperature was 12
Comparative example 1 is an example in which upsetting forging was performed at 00°C.
On the other hand, as a sheath material, Ti-13V-5Cr-5S
n-3Aβ (titanium alloy 1) and the processing temperature was 1200.
Example 1 is an example in which upsetting forging was carried out at ℃.
上記実施例１と比較例１を圧下率６０％迄について比較
した場合、本発明のチタン合金でシースした方が加工率
は低い。これは比較例のシース材（Ｓ８１６）の方がチ
タン合金１より変形抵抗が高いためである。しかしなが
ら比較例では割れが発生している。−力木発明のチタン
合金シースの場合は割れが発生せず健全な試料が得られ
る。また加工率が８０％になると比較例では割れの発生
が変形よりも優先し、５５％の加工率しか得られないの
に対し、実施例１では６０％の加工率が得られ、しかも
割れも発生しなかった。When comparing Example 1 and Comparative Example 1 with respect to the reduction rate up to 60%, the processing rate is lower in the case of sheathing with the titanium alloy of the present invention. This is because the sheath material (S816) of the comparative example has higher deformation resistance than titanium alloy 1. However, cracks occurred in the comparative example. - In the case of the titanium alloy sheath invented by Rikiki, a healthy sample can be obtained without cracking. Furthermore, when the processing rate reaches 80%, the occurrence of cracks takes priority over deformation in the comparative example, and only a processing rate of 55% is obtained, whereas in Example 1, a processing rate of 60% is obtained, and there is no cracking. It did not occur.
次にシース材として実施例１と同じチタン合金１を用い
、加工温度を本発明加工温度の下限値近傍の１０５０℃
とした例を実施例２とし、該下限値以下の９５０℃とし
た例を比較例２とする。本発明における加工温度の範囲
内である１０５０℃で加工した場合、４０％以下の圧下
率では、１２００℃で加工した場合（実施例１）と比べ
ると、加工率はやや低下しているが、割れなく加工でき
る。また、６０％の圧下率では極めて軽微な割れを伴う
ものの、３０％の加工率が得られた。しかし、本発明の
加工温度以下の９５０℃で加工した場合（比較例２）、
加工率がわずか２％ですでに割れが発生している。これ
は１０００℃以下ではＴｉｉ基合金材料の強度が著しく
高く、また延性が著しく乏しいため、加工性が極めて悪
くなることによる。Next, using the same titanium alloy 1 as in Example 1 as the sheath material, the processing temperature was set to 1050°C, which is near the lower limit of the processing temperature of the present invention.
Example 2 is an example in which the temperature was set to 950°C, which is below the lower limit, and Comparative Example 2 is an example in which the temperature was 950°C, which is below the lower limit. When processing at 1050°C, which is within the processing temperature range of the present invention, at a reduction rate of 40% or less, the processing rate is slightly lower than when processing at 1200°C (Example 1). Can be processed without cracking. Further, at a rolling reduction rate of 60%, a working rate of 30% was obtained, although very slight cracking occurred. However, when processed at 950°C, which is lower than the processing temperature of the present invention (Comparative Example 2),
Cracking has already occurred at a processing rate of only 2%. This is because at temperatures below 1000°C, the strength of the Tii-based alloy material is extremely high and its ductility is extremely poor, resulting in extremely poor workability.
次にシース材としてＴｉ−３Ａβ−８Ｖ−６Ｃｒ−４Ｍ
ｏ −４Ｚ直通称β−Ｃ）を用いて実施例１と同様に加
工を行った例を実施例３とした。Next, Ti-3Aβ-8V-6Cr-4M was used as a sheath material.
Example 3 was an example in which processing was performed in the same manner as in Example 1 using o-4Z (direct name β-C).
本実施例３も実施例１と同様圧下率８０％迄割れ発生も
なく、加工率も５５％迄可能である。Similar to Example 1, this Example 3 also does not cause cracking up to a reduction rate of 80%, and the processing rate can reach up to 55%.
また、第２表に示した真空中（５ｘｘｏ−’ Ｔｏｒｒ
）、１２００℃での加工温度での結果によれば６０％以
上の圧下率で加工率が大気中での加工より低く、８０％
の圧下率では割れを生じている。In addition, in the vacuum shown in Table 2 (5xxo-' Torr
), the results at a processing temperature of 1200℃ show that at a reduction rate of 60% or more, the processing rate is lower than that in the atmosphere, 80%.
At a reduction rate of , cracks occur.
しかしながらシース材に５８１６、ＣＯ基耐熱合金を用
いた比較例１．２と比べると３５％の加工率を割れを発
生せずに、達成している点で有効である。However, compared to Comparative Example 1.2 in which 5816, a CO-based heat-resistant alloy, was used as the sheath material, this example is effective in achieving a processing rate of 35% without cracking.
大気中での加工の方が真空中での加工より結果が良好で
あったのは酸化物の断熱効果のためである。The reason why machining in air gave better results than machining in vacuum is due to the heat insulating effect of the oxide.
第１表
以上大気中での加熱、
鍛造
第２表
〔発明の効果〕
以上説明したように、本発明によれば、シース材として
チタン合金を用い、１０００℃以上の温度で加工するこ
とにより、金属間化合物ＴｉＡｌ基合金の熱間加工を、
割れなく６０％の加工率まで行うことができる。Table 1 and above Heating in the atmosphere, Forging Table 2 [Effects of the invention] As explained above, according to the present invention, by using a titanium alloy as the sheath material and processing at a temperature of 1000°C or higher, Hot processing of intermetallic compound TiAl-based alloy,
Processing rates up to 60% can be achieved without cracking.
第１図は本発明に係る試料の斜視図であり、第２図は本
発明に係るシースのフタの斜視図であり、
第３図は本発明に係るシースの円筒函の斜視図であり、
第４図は本発明に係るシース材で試料をシースした状態
を示す断面図である。
１・・・試料、 ２・・・フタ、 ３・・・円柱空洞、
４・・・円筒函。FIG. 1 is a perspective view of a sample according to the present invention, FIG. 2 is a perspective view of a lid of a sheath according to the present invention, and FIG. 3 is a perspective view of a cylindrical case of a sheath according to the present invention. FIG. 4 is a sectional view showing a sample sheathed with a sheath material according to the present invention. 1... Sample, 2... Lid, 3... Cylindrical cavity,
4...Cylindrical box.
Claims (1)
ＴｉＡｌ基合金材料を熱間加工する際に、前記シース材
としてチタン合金を用い１０００℃以上の温度で加工す
ることを特徴とする金属間化合物ＴＩＡｌ基合金材料の
熱間加工法。1. A metal characterized in that when hot working an intermetallic compound TiAl-based alloy material using a sheath material that covers the workpiece, a titanium alloy is used as the sheath material and the processing is performed at a temperature of 1000°C or higher. A method for hot working of intermediate compound TIAl-based alloy materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33579189A JP2728305B2 (en) | 1989-12-25 | 1989-12-25 | Hot working method of intermetallic compound TiA ▲ -based alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33579189A JP2728305B2 (en) | 1989-12-25 | 1989-12-25 | Hot working method of intermetallic compound TiA ▲ -based alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03197630A true JPH03197630A (en) | 1991-08-29 |
| JP2728305B2 JP2728305B2 (en) | 1998-03-18 |
Family
ID=18292477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33579189A Expired - Lifetime JP2728305B2 (en) | 1989-12-25 | 1989-12-25 | Hot working method of intermetallic compound TiA ▲ -based alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2728305B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004538361A (en) * | 2000-12-15 | 2004-12-24 | ティッセンクルップ オートモーティヴ アクチエンゲゼルシャフト | Method of manufacturing high load capacity member made of TiAl alloy |
| JP2010280002A (en) * | 2009-06-05 | 2010-12-16 | Boehler Schmiedetechnik Gmbh & Co Kg | Method for manufacturing forged piece from gamma titanium-aluminum-based alloy |
| WO2017018509A1 (en) * | 2015-07-29 | 2017-02-02 | 新日鐵住金株式会社 | Titanium composite material and titanium material for hot rolling |
| CN107283124A (en) * | 2017-06-27 | 2017-10-24 | 太原理工大学 | A kind of method without jacket hot-working TiAl alloy |
| US10920300B2 (en) | 2015-07-29 | 2021-02-16 | Nippon Steel Corporation | Titanium composite material and titanium material for hot rolling |
-
1989
- 1989-12-25 JP JP33579189A patent/JP2728305B2/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004538361A (en) * | 2000-12-15 | 2004-12-24 | ティッセンクルップ オートモーティヴ アクチエンゲゼルシャフト | Method of manufacturing high load capacity member made of TiAl alloy |
| JP2010280002A (en) * | 2009-06-05 | 2010-12-16 | Boehler Schmiedetechnik Gmbh & Co Kg | Method for manufacturing forged piece from gamma titanium-aluminum-based alloy |
| WO2017018509A1 (en) * | 2015-07-29 | 2017-02-02 | 新日鐵住金株式会社 | Titanium composite material and titanium material for hot rolling |
| JP6137423B1 (en) * | 2015-07-29 | 2017-05-31 | 新日鐵住金株式会社 | Titanium composite and titanium material for hot rolling |
| US10920300B2 (en) | 2015-07-29 | 2021-02-16 | Nippon Steel Corporation | Titanium composite material and titanium material for hot rolling |
| CN107283124A (en) * | 2017-06-27 | 2017-10-24 | 太原理工大学 | A kind of method without jacket hot-working TiAl alloy |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2728305B2 (en) | 1998-03-18 |
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