JPH02247338A - Manufacture of nb-ti alloy - Google Patents
Manufacture of nb-ti alloyInfo
- Publication number
- JPH02247338A JPH02247338A JP1068615A JP6861589A JPH02247338A JP H02247338 A JPH02247338 A JP H02247338A JP 1068615 A JP1068615 A JP 1068615A JP 6861589 A JP6861589 A JP 6861589A JP H02247338 A JPH02247338 A JP H02247338A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- alloy
- compacted body
- reaction
- mixed
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 229910001069 Ti alloy Inorganic materials 0.000 title description 5
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 40
- 239000000956 alloy Substances 0.000 claims abstract description 40
- 239000000843 powder Substances 0.000 claims abstract description 38
- 229910020012 Nb—Ti Inorganic materials 0.000 claims abstract description 25
- 238000006243 chemical reaction Methods 0.000 claims abstract description 20
- 239000011812 mixed powder Substances 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 230000001902 propagating effect Effects 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 abstract description 10
- 238000005049 combustion synthesis Methods 0.000 abstract description 8
- 238000005204 segregation Methods 0.000 abstract description 6
- 239000012535 impurity Substances 0.000 abstract description 5
- 238000009694 cold isostatic pressing Methods 0.000 abstract description 2
- 238000005275 alloying Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 11
- 239000002131 composite material Substances 0.000 description 10
- 238000002844 melting Methods 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 230000005484 gravity Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000011109 contamination Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000003746 solid phase reaction Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000010953 base metal Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000000462 isostatic pressing Methods 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Powder Metallurgy (AREA)
Abstract
Description
【発明の詳細な説明】
「産業上の利用分野」
本発明は燃焼合成によるＮｂ−Ｔｉ合金の製造方法に関
する。DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a method for producing Nb-Ti alloys by combustion synthesis.
「従来の技術」
一般に合金鋳塊を製造するには、合金成分の各元素を単
体であるいは複合状態で含有する地金あるいは鋳塊など
を用意し、これらを目的の組成比となるように所定の割
合で混合し、この混合体を加熱して溶融させ、溶融状態
で攪拌して成分の均一化を図った後に冷却して得るよう
にしている。``Prior art'' Generally, in order to produce an alloy ingot, a base metal or an ingot containing each element of the alloy components singly or in a composite state is prepared, and these are mixed in a predetermined manner to achieve the desired composition ratio. The mixture is heated to melt it, stirred in the molten state to homogenize the components, and then cooled.
また、地金あるいは鋳塊の溶融混合状態において雰囲気
中の不純物やガスなどが混入すると合金成分に変動を来
し、純度が低下するので、真空雰囲気中などにおいて溶
解処理を行い、更に加熱効率の良好なアーク放電あるい
は電子ビーム溶解による加熱などを行って、不純物の少
ない良質の合金鋳塊を製造するようにしている。In addition, if impurities or gases in the atmosphere enter the molten and mixed state of the ingot or ingot, the alloy composition will fluctuate and the purity will decrease. By performing heating using suitable arc discharge or electron beam melting, a high quality alloy ingot with few impurities is manufactured.
［発明が解決しようとする課題」
ところが、溶解法によって合金鋳塊を製造した場合、溶
湯を十分に攪拌して凝固させた場合であっても、溶湯内
の各合金成分の比重差などが原因となって溶湯内におい
て合金成分が不均一に混合された状態を生じる場合があ
るとともに、凝固時に生じる重力偏析などのために、所
望の組成比の均質な合金鋳塊を得ることが困難な問題が
あった。[Problem to be solved by the invention] However, when an alloy ingot is manufactured by the melting method, even if the molten metal is thoroughly stirred and solidified, problems may arise due to differences in the specific gravity of each alloy component in the molten metal. As a result, the alloy components may be mixed non-uniformly within the molten metal, and due to gravity segregation that occurs during solidification, it is difficult to obtain a homogeneous alloy ingot with the desired composition ratio. was there.
ところで、超電導の応用分野に用いられている実用的な
超電導材料としてＮｂ−Ｔｉ合金が知られているが、こ
の種の超電導材料においては、組成比が異なると、超電
導特性にも影響を生じるので、ＮｂとＴｉの含有割合は
所望の組成比に合致するように調整されなくてはならな
い。ところが、この合金の成分元素であるＮｂとＴｉは
いずれも高融点金属であるために、高熱を発生させるた
めに特殊な溶解装置が必要であるとともに、両元素に比
重差があることなどから、均質な組成の合金鋳塊を得る
ことが困難なことがあり、従来から行なわれている溶解
鋳造法とは別種の新たな製造方法が種々試みられている
。By the way, Nb-Ti alloy is known as a practical superconducting material used in the applied field of superconductivity, but in this type of superconducting material, if the composition ratio differs, it will affect the superconducting properties. , the content ratios of Nb and Ti must be adjusted to match the desired composition ratio. However, since the constituent elements of this alloy, Nb and Ti, are both high melting point metals, special melting equipment is required to generate high heat, and there is a difference in specific gravity between the two elements. Since it is sometimes difficult to obtain an alloy ingot with a homogeneous composition, various new manufacturing methods different from the conventional melting and casting method have been attempted.
本発明は前記課題を解決するためになされたもので、Ｎ
ｂとＴｉを所定の組成比で含有させることができ、偏析
の問題や不純物の混入の問題を生じることなく均質なＮ
ｂ−Ｔｉ合金を製造する方法を提供することを目的とす
る。The present invention was made to solve the above problems, and N
B and Ti can be contained in a predetermined composition ratio, and homogeneous N can be produced without causing problems of segregation or contamination of impurities.
It is an object of the present invention to provide a method for manufacturing a b-Ti alloy.
［課題を解決するための手段］
本発明は前記課題を解決するために、Ｎｂ粉末とＴｉ粉
末を混合して得た混合粉末を加圧して圧密体を形成し、
次にこの圧密体の一部に点火して点火部分を化学反応に
より燃焼させるとともに、この化学反応により生じる生
成熱によって化学反応部分に隣接する部分を加熱し、順
次化学反応部分を圧密体の他の部分に広げて圧密体の全
体を化学反応させることにより圧密体の全体を合金化す
るものである。[Means for Solving the Problems] In order to solve the above problems, the present invention presses a mixed powder obtained by mixing Nb powder and Ti powder to form a consolidated body,
Next, a part of the compact is ignited to cause the ignited part to burn through a chemical reaction, and the heat produced by this chemical reaction heats the part adjacent to the chemically reacting part, which sequentially moves the chemically reacting part to the other parts of the compact. The entire compacted body is alloyed by spreading it over the entire compacted body and subjecting the entire compacted body to a chemical reaction.
「作用」
ＮｂとＴｉの合計エンタルピーとＮｂ−Ｔｉ合金のエン
タルピーとの間に差があるので、Ｎｂ粉末とＴｉ粉末の
圧密体に点火して部分的に合金を生成させた場合に反応
熱が生じ、この反応熱によって反応部分が自然に圧密体
の全体に広がり、Ｎｂ粉末とＴｉ粉末からなる圧密体の
全体が順次自然にＮｂ−Ｔｉ合金化する。また、反応熱
によって自身が合金化する圧密体の内部においては、溶
解法などに比較して大規模な原子の移動や偏析は生じな
いので、所望の組成でＮｂ粉末とＴｉ粉末を均一に混合
して圧密体を形成することで、反応後の圧密体の全体が
均一な組成のＮ ｂ−Ｔ ｉ合金化する。"Effect" There is a difference between the total enthalpy of Nb and Ti and the enthalpy of the Nb-Ti alloy, so when a compacted body of Nb powder and Ti powder is ignited to partially form an alloy, the reaction heat is The reaction heat naturally spreads the reaction portion throughout the compacted body, and the whole compacted body made of Nb powder and Ti powder is sequentially and naturally turned into an Nb-Ti alloy. In addition, inside the compacted body, which is alloyed by the heat of reaction, large-scale movement and segregation of atoms does not occur compared to melting methods, so Nb powder and Ti powder are uniformly mixed with the desired composition. By doing this to form a compacted body, the entire compacted body after the reaction becomes an Nb-Ti alloy with a uniform composition.
「実施例」
第１図ないし第７図は本発明方法の一例を説明するため
のもので、この例の方法を実施してＮｂ−Ｔｉ合金を製
造するには、第１図に示すＮｂ粉粉末色第２図に示すＴ
ｉ粉末２を用意する。これらの粉末は、高純度のＴｉあ
るいは高純度のＮｂからなるものであって、その粒径は
０，１〜２０μｍ程度の十分に粒径の揃ったものを用い
ることが好ましい。"Example" Figures 1 to 7 are for explaining an example of the method of the present invention.In order to carry out the method of this example to produce an Nb-Ti alloy, the Nb powder shown in Figure 1 is used. Powder color T shown in Figure 2
i Prepare powder 2. These powders are made of high-purity Ti or high-purity Nb, and preferably have sufficiently uniform particle sizes of about 0.1 to 20 μm.
次に前記Ｎｂ粉末ｌとＴｉ粉末２を、製造するべきＮｂ
−Ｔｉ合金の組成比と同一になるように秤量して第３図
に示すように所要量、攪拌容器３内に没入し、十分に攪
拌して均一に混合する。この混合処理の際に、Ｎｂ粉末
１とＴｉ粉末２の粒径が異なるようであると、均一混合
が不十分になるので、Ｎｂ粉粉末色Ｔｉ粉末２の粒径を
できる限り揃えることが好ましい。Next, the Nb powder 1 and Ti powder 2 are
-Weigh it so that the composition ratio is the same as that of the Ti alloy, put the required amount into the stirring vessel 3 as shown in FIG. 3, and thoroughly stir it to mix it uniformly. During this mixing process, if the particle sizes of Nb powder 1 and Ti powder 2 are different, uniform mixing will be insufficient, so it is preferable to make the particle sizes of Nb powder color Ti powder 2 as uniform as possible. .
次にこの混合粉末４を白金板などの薄肉金属板からなる
容器５に収納し、容器５を真空排気装置に接続して容器
５の内部を真空排気する。この真空排気処理により容器
５内の不要なガスを排除して不純物元素の混入を防止す
る。Next, this mixed powder 4 is stored in a container 5 made of a thin metal plate such as a platinum plate, and the container 5 is connected to a vacuum evacuation device to evacuate the inside of the container 5. This vacuum evacuation process eliminates unnecessary gas within the container 5 to prevent contamination of impurity elements.
次いで第４図に示す如く前記容器５ごと冷間等方圧プレ
ス加工を行って混合粉末からなる圧密体７を形成する。Next, as shown in FIG. 4, the container 5 is subjected to cold isostatic pressing to form a compacted body 7 made of mixed powder.
前記等方圧プレス加工法では冷間で静水圧によるプレス
法を行っても良い。この場合に加える加圧力は、０．５
〜５ｔ／ｃｍ’程度が好ましい。In the isostatic pressing method, a cold pressing method using hydrostatic pressure may be performed. The pressure applied in this case is 0.5
~5t/cm' is preferable.
プレス加工によって圧密体７を得たならば、この圧密体
７を容器５から分離して圧密体７を露出させ、第５図に
示すようにこの圧密体７の上部中央部分を放電加熱ある
いは電熱線による強熱などの加熱手段により３０００℃
程度に加熱して点火する。以上のように点火された圧密
体７の上部においては、化学反応が始まり、ＮｂとＴｉ
とが反応してＮｂ−Ｔｉ合金が生成されて生成熱が放出
される。そして、Ｎｂ−Ｔｉ合金が生成される際に放出
される生成熱により、反応部分の周囲の圧密体が加熱さ
れてこの部分にもＮｂ−Ｔｉ合金が生成する。Once the compacted body 7 is obtained by press working, the compacted body 7 is separated from the container 5 to expose the compacted body 7, and the upper central portion of the compacted body 7 is heated by discharge heating or electric current as shown in FIG. 3000℃ by heating means such as ignition with hot wire
Heat it up to a certain level and ignite it. A chemical reaction begins in the upper part of the compacted body 7 that has been ignited as described above, and Nb and Ti
A Nb-Ti alloy is produced by the reaction, and the heat of formation is released. Then, the heat of formation released when the Nb-Ti alloy is generated heats the compacted body around the reaction area, and the Nb-Ti alloy is also generated in this area.
このようにして圧密体７の上部側から下部側に順次反応
が伝達される結果、第６図に示すように圧密体７には上
部側から順次Ｎｂ−Ｔｉ合金が生成され、圧密体７の底
部まで反応が完了すると第７図に示すように全体がＮｂ
−Ｔｉ合金からなる円柱状の合成品８を得ることができ
る。As a result of the reaction being transmitted sequentially from the upper side to the lower side of the consolidated body 7 in this way, Nb-Ti alloy is sequentially generated in the consolidated body 7 from the upper side as shown in FIG. When the reaction is completed to the bottom, the whole becomes Nb as shown in Figure 7.
A cylindrical composite product 8 made of -Ti alloy can be obtained.
ここで第８図に、ＮｂとＴｉの合計エンタルピー値とＮ
ｂ−Ｔｉ合金のエンタルピー値を比較して示す。第８図
から両方のエンタルピーに差異があるので、前述のよう
に点火による燃焼合成方法によりＮｂ−Ｔｉ合金を合成
できることが明らかである。Here, Fig. 8 shows the total enthalpy value of Nb and Ti and N
The enthalpy values of b-Ti alloys are shown in comparison. From FIG. 8, it is clear that the Nb-Ti alloy can be synthesized by the combustion synthesis method using ignition, as described above, since there is a difference in both enthalpies.
前述のように製造された合成品８においては、均一に混
合したＮｂ粉粉末色Ｔｉ粉末２の圧密体からなり、しか
も、点火されて燃焼合成される場合に圧密体７の内部で
は、溶解法の場合と異なり、固相反応に近い元素拡散が
なされ、偏析は生じないので、合成品８にはＮｂとＴｉ
が均一に含有されている。従って組成比の整った均質な
Ｎｂ−Ｔｉ合金の合成品８を得ることができる。更に、
ＮｂとＴｉの合計エンタルピー特性とＮｂ−Ｔｉ合金の
エンタルピー特性の差異により生成熱が発生し、この生
成熱により燃焼合成が圧密体の全体に広がるので、特別
な熱源を用いることなく、最初の点火を行い、圧密体７
をｔｏｏｏ〜１７００℃に加熱することで簡単に組成の
整ったＮ ｂ−Ｔ ｉ合金を製造することができる。The composite product 8 manufactured as described above consists of a compacted body of uniformly mixed Nb powder and powder-colored Ti powder 2, and when ignited and synthesized by combustion, inside the compacted body 7, a melting process is performed. Unlike the case of , elemental diffusion similar to a solid phase reaction occurs and segregation does not occur, so composite product 8 contains Nb and Ti.
is uniformly contained. Therefore, a homogeneous composite product 8 of Nb-Ti alloy with a uniform composition ratio can be obtained. Furthermore,
Heat of formation is generated due to the difference between the total enthalpy characteristics of Nb and Ti and the enthalpy characteristics of the Nb-Ti alloy, and this heat of formation spreads the combustion synthesis throughout the compact, so the first ignition can be achieved without using a special heat source. The compacted body 7
A Nb-Ti alloy with a uniform composition can be easily produced by heating to 1,700°C to 1,700°C.
「実施例」
Ｎｂ粉末とＴｉ粉末を混合する際に、Ｎｂ粉末の割合を
４６原子％〜５３原子％まで変化させて混合してなる混
合粉末を調製し、各混合粉末を冷間液圧プレスで２ｔ／
ｃ＋ｓ″の圧力を加えて直径２０１ｍ。"Example" When mixing Nb powder and Ti powder, mixed powders were prepared by varying the proportion of Nb powder from 46 at % to 53 at %, and each mixed powder was cold hydraulic pressed. 2t/
The diameter is 201 m by applying a pressure of c+s''.
高さ１００ａ＋ｉの円柱状に成型して複数の圧密体を得
た。次いでこれらの圧密体の上端部を、放電加熱により
３０００℃に加熱して上端部に点火して燃焼合成を行い
、Ｎ ｂ−Ｔ ｉ合金製の円柱状の合成品を得た。A plurality of compacted bodies were obtained by molding into a cylindrical shape with a height of 100a+i. Next, the upper end portions of these compacted bodies were heated to 3000° C. by discharge heating, and the upper end portions were ignited to perform combustion synthesis, thereby obtaining a cylindrical composite product made of Nb-Ti alloy.
得られた合成品におけるＮｂの含有量を化学分析した結
果、第９図に示すように粉末混合時に添加したＮｂ量と
ほぼ等しくなっていることが判明した。As a result of chemical analysis of the Nb content in the obtained composite product, it was found that the Nb content was approximately equal to the amount of Nb added at the time of powder mixing, as shown in FIG.
即ちこの発明の方法を実施することで所望の組成の均質
なＮｂ−Ｔｉ合金の合成品を製造できることが判明した
。That is, it has been found that by carrying out the method of the present invention, it is possible to produce a homogeneous Nb-Ti alloy composite having a desired composition.
「発明の効果」
以上説明したように本発明は、Ｎｂ粉末とＴｉ粉末の混
合粉末から形成した圧密体に点火することにより、Ｎｂ
とＴｉの合計エンタルピー特性とＮｂＴｉ合金のエンタ
ルピー特性の間のエンタルピー差を利用して生成熱によ
る燃焼合成を行い、ＮｂＴｉ合金を生成させるので、圧
密体の内部で固相反応に近い反応が進行し、圧密体の内
部で偏析などを起こすことなくＮｂ−Ｔｉ合金化させる
ことができ、圧密体に混合させたＮｂとＴｉの割合と同
等の割合の均質なＮｂ−Ｔｉ合金を得ることができる効
果がある。"Effects of the Invention" As explained above, the present invention provides a method for producing Nb by igniting a compacted body formed from a mixed powder of Nb powder and Ti powder.
Since the enthalpy difference between the total enthalpy properties of Ti and Ti and the enthalpy properties of the NbTi alloy is used to perform combustion synthesis using the heat of formation to produce the NbTi alloy, a reaction similar to a solid phase reaction proceeds inside the compact. , it is possible to form a Nb-Ti alloy without causing segregation inside the compacted body, and it is possible to obtain a homogeneous Nb-Ti alloy with the same proportion as the ratio of Nb and Ti mixed in the compacted body. There is.
また、ＮｂとＴｉの合計エンタルピー特性とＮｂＴｉ合
金のエンタルピー特性の差異により生成熱が発生し、こ
の生成熱により燃焼合成が圧密体の全体に広がるので、
特別な熱源を用いることなく、最初の点火を行うのみの
操作で簡単にＮｂ−Ｔｉ合金を製造することができる。In addition, heat of formation is generated due to the difference between the total enthalpy characteristics of Nb and Ti and the enthalpy characteristics of the NbTi alloy, and this heat of formation spreads the combustion synthesis throughout the consolidated body.
Nb-Ti alloy can be easily produced by simply performing initial ignition without using a special heat source.
第１図はＮｂ粉末を示す側面図、第２図はＴｉ粉末を示
す側面図、第３図はＮｂ粉末とＴｉ粉末の混合状態を示
す断面図、第４図は等方圧プレス状態を示す断面図、第
５図は圧密体に点火した状態を支援す断面図、第６図は
圧密体の燃焼合成途中の状態を示す断面図、第７図は合
成品の断面図、第８図はＮ ｂ＋ Ｔ ｉのエンタルピ
ー特性とＮｂ−Ｔｉ合金のエンタルピー特性を示す図、
第９図は実施例で得られた合成品のＮｂ含有量と混合粉
末中に含有させたＮｂ量を比較して示す図である。
！・・・Ｎｂ粉末、２・・・Ｔｉ粉末、３・・・混合容
器、４・・・混合粉末、５・・・容器、７・・・圧密体
、８・・・合成品。Fig. 1 is a side view showing Nb powder, Fig. 2 is a side view showing Ti powder, Fig. 3 is a sectional view showing a mixed state of Nb powder and Ti powder, and Fig. 4 is an isostatic press state. 5 is a sectional view supporting the state in which the compacted body is ignited, FIG. 6 is a sectional view showing the state in the middle of combustion synthesis of the compacted body, FIG. 7 is a sectional view of the composite product, and FIG. A diagram showing the enthalpy characteristics of Nb+Ti and the enthalpy characteristics of Nb-Ti alloy,
FIG. 9 is a diagram showing a comparison of the Nb content of the composite product obtained in the example and the amount of Nb contained in the mixed powder. ! ...Nb powder, 2...Ti powder, 3...mixed container, 4...mixed powder, 5...container, 7...consolidated body, 8...synthetic product.
Claims (1)
圧密体を形成し、次にこの圧密体の一部に点火して点火
部分を化学反応により燃焼させるとともに、この化学反
応により生じる生成熱によって化学反応部分に隣接する
部分を加熱し、順次化学反応部分を圧密体の他の部分に
伝播させて圧密体の全体を化学反応させることにより圧
密体の全体を合金化することを特徴とするＮｂ−Ｔｉ合
金の製造方法。The mixed powder obtained by mixing Nb powder and Ti powder is pressurized to form a compacted body, and then a part of this compacted body is ignited to burn the ignited part by a chemical reaction, and the The feature is that the entire compacted body is alloyed by heating the part adjacent to the chemically reacting part by the generated heat and sequentially propagating the chemically reacting part to other parts of the compacted body to cause a chemical reaction in the whole compacted body. A method for producing a Nb-Ti alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1068615A JPH02247338A (en) | 1989-03-20 | 1989-03-20 | Manufacture of nb-ti alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1068615A JPH02247338A (en) | 1989-03-20 | 1989-03-20 | Manufacture of nb-ti alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02247338A true JPH02247338A (en) | 1990-10-03 |
Family
ID=13378842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1068615A Pending JPH02247338A (en) | 1989-03-20 | 1989-03-20 | Manufacture of nb-ti alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02247338A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995008654A1 (en) * | 1993-09-24 | 1995-03-30 | The Ishizuka Research Institute, Ltd. | Composite material and process for producing the same |
-
1989
- 1989-03-20 JP JP1068615A patent/JPH02247338A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995008654A1 (en) * | 1993-09-24 | 1995-03-30 | The Ishizuka Research Institute, Ltd. | Composite material and process for producing the same |
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