JPH0543775B2 - - Google Patents
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- Publication number
- JPH0543775B2 JPH0543775B2 JP63329981A JP32998188A JPH0543775B2 JP H0543775 B2 JPH0543775 B2 JP H0543775B2 JP 63329981 A JP63329981 A JP 63329981A JP 32998188 A JP32998188 A JP 32998188A JP H0543775 B2 JPH0543775 B2 JP H0543775B2
- Authority
- JP
- Japan
- Prior art keywords
- alloy
- powder
- composition
- master alloy
- present
- 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.)
- Expired - Lifetime
Links
- 229910045601 alloy Inorganic materials 0.000 claims description 41
- 239000000956 alloy Substances 0.000 claims description 41
- 229910052719 titanium Inorganic materials 0.000 claims description 5
- 239000000463 material Substances 0.000 description 15
- 239000000203 mixture Substances 0.000 description 15
- 239000000843 powder Substances 0.000 description 15
- 239000010936 titanium Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 229910001069 Ti alloy Inorganic materials 0.000 description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000004663 powder metallurgy Methods 0.000 description 2
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 229910010038 TiAl Inorganic materials 0.000 description 1
- 239000012620 biological material Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Landscapes
- Powder Metallurgy (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明はTi−5Al−2.5Fe合金を素粉末混合
法により製造する場合の母合金組成に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a master alloy composition when a Ti-5Al-2.5Fe alloy is produced by a raw powder mixing method.
チタン合金は、構造用強力材料としての用途ば
かりでなく、優れた生体適合性、耐食性、非磁性
などの性質から医療分野にも適した材料と言え
る。しかしながら一般にチタン合金は、ルツボ材
や鋳型材と反応しやすいため溶解・鋳造が難し
い。また、加工性が悪く素材の歩留まりが悪いた
め、加工費、素材費が高くつくといつた難点があ
る。こういつた問題を解決するため、粉末冶金法
の一手法である素粉末混合法によるチタン合金の
製造がいくつか試みられている（「金属」vol.45、
No.４、p.33、1975年参照）。
Titanium alloys are suitable not only for use as strong structural materials, but also for the medical field due to their excellent biocompatibility, corrosion resistance, and nonmagnetic properties. However, titanium alloys are generally difficult to melt and cast because they tend to react with crucible materials and mold materials. In addition, it has poor processability and low material yield, resulting in high processing and material costs. In order to solve these problems, several attempts have been made to manufacture titanium alloys using the elementary powder mixing method, which is a method of powder metallurgy ("Metals" vol. 45,
No. 4, p. 33, 1975).
Ti−5Al−2.5FeはＶなど生体に為害作用を示
す元素を含まないため、特に生体材料として期待
されている合金である（U.Zwicker、J.Breme、
EVALUTION OF CENTRIFUGALLY CAST
TiAl 5Fe2.5 ALLOY FOR IMPLANT
MATERIAL Titanium、Scinene and
Technology、vol.1、p.191、1985、Deutsche
Gesellschaft fu¨r Metallkunde.参照）。このTi−
5Al−2.5Fe合金も、前述のチタン合金の難点を
持ち、さらにFeが偏析しやすいという問題点も
有しているが、これまでにこの合金を素粉末混合
法により製造したという報告はない。 Ti-5Al-2.5Fe does not contain elements such as V that are harmful to living organisms, so it is an alloy that is particularly promising as a biomaterial (U. Zwicker, J. Breme,
EVALUTION OF CENTRIFUGALLY CAST
TiAl 5Fe2.5 ALLOY FOR IMPLANT
MATERIAL Titanium, Scinene and
Technology, vol.1, p.191, 1985, Deutsche
(see Gesellschaft fu¨r Metallkunde.). This Ti−
The 5Al-2.5Fe alloy also has the drawbacks of the titanium alloy mentioned above, and also has the problem of easy segregation of Fe, but there has been no report to date on the production of this alloy by a raw powder mixing method.
素粉末混合法で製造する場合、最も単純な方法
はTi、Al、Feそれぞれの純金属粉末を所定の割
合に配合し、充分攪拌混合したのち成形し焼結す
る方法が考えられる。しかしこの場合は前述のご
とくFeが偏析し易いという難点の他に、短時間
で焼結が促進し難いこともあり、いずれにしても
強靭な性質の材料が得にくく、材質のバラツキも
大きくて安定した材料が得られない欠点がある。 When manufacturing by a raw powder mixing method, the simplest method is to mix pure metal powders of Ti, Al, and Fe in predetermined proportions, stir and mix thoroughly, then shape and sinter. However, in this case, in addition to the disadvantage that Fe tends to segregate as mentioned above, it is also difficult to promote sintering in a short time, and in any case, it is difficult to obtain a material with strong properties, and there is large variation in material quality. The disadvantage is that stable materials cannot be obtained.
上記欠点を解決する手段として、FeをAlと合
金化して使用することが考えられる。FeとAlの
合金としては、通常市販のフエロアルミとして
Fe：50wt％、Al：50wt％の合金がある。しか
し、このフエロアルミでは目標とするTi−5Al−
2.5Fe合金を造る場合、さらにAlを添加する必要
があり、配合が繁雑となる。 As a means to solve the above drawbacks, it is possible to use Fe in an alloy with Al. As an alloy of Fe and Al, commercially available ferroaluminum is commonly used.
There is an alloy with Fe: 50wt% and Al: 50wt%. However, with this ferroaluminum, the target Ti−5Al−
When making a 2.5Fe alloy, it is necessary to further add Al, making the formulation complicated.
そこでAlとFeの割合が重量比でAl：Fe＝５：
2.5なる組成の合金を溶製してインゴツトに鋳造
し、粉砕することを試みたが材質が硬くて粉砕で
きなかつた。 Therefore, the weight ratio of Al and Fe is Al:Fe=5:
An attempt was made to melt an alloy with a composition of 2.5, cast it into an ingot, and crush it, but the material was too hard to crush.
本発明はTi−5Al−2.5Fe組成の焼結合金用の
母合金であつて、AlとFeの割合が目標比率を維
持していて、使用にあたり配合が単純にでき、し
かも粉砕性が良くて、150μｍ以下の粉末が容易
に得られる母合金用の合成組成物を提供すること
を目的とする。
The present invention is a master alloy for sintered alloys having a composition of Ti-5Al-2.5Fe, in which the proportion of Al and Fe maintains the target ratio, and it can be easily formulated for use, and has good crushability. , an object of the present invention is to provide a synthetic composition for a master alloy from which a powder of 150 μm or less can be easily obtained.
本発明ではAlとFe比率が５：2.5である67％Al
−33％Fe合金に5wt％以上50wt％未満のTiを添
加した組成の母合金とする。これにより粉砕可能
な母合金が得られることを発見したことに基づく
ものである。Ti添加量の範囲限定の理由は、5wt
％未満では粉砕性向上に十分な効果が得られず、
50wt％以上では逆に材質が硬くなりすぎて粉砕
性が低下し、又、歩留りが悪くなり、粉砕のコス
トが高くなるためである。
In the present invention, 67% Al with an Al and Fe ratio of 5:2.5 is used.
- The master alloy has a composition in which 5 wt% or more and less than 50 wt% of Ti is added to a 33% Fe alloy. This is based on the discovery that a pulverizable master alloy can be obtained by this method. The reason for limiting the range of Ti addition amount is 5wt.
If it is less than %, sufficient effect in improving grindability cannot be obtained;
On the other hand, if the content exceeds 50 wt%, the material becomes too hard, resulting in poor grindability, poor yield, and high grinding costs.
AlとFeの比率は目的とする焼結合金の組成か
らしてAl：Fe＝５：2.5とする必要がある。許容
される組成範囲を考慮してもAl：Fe＝（５±
0.5）：（2.5±0.5）とする必要がある。この比率を
維持しつつ、Tiを５〜50wt％含ませると粉砕性
が良く、焼結合金用母合金として最適な合金とな
る。即ち、本発明の母合金の組成はTi：５〜
50wt％、Fe：11〜38wt％を含み、残部が不可避
的不純物を含むAlから成ることを特徴とする。
これら３元素をあらかじめ合金化しておく。 The ratio of Al and Fe needs to be Al:Fe=5:2.5 in view of the composition of the intended sintered alloy. Even considering the allowable composition range, Al:Fe=(5±
0.5): (2.5±0.5). When this ratio is maintained and Ti is included in an amount of 5 to 50 wt%, the alloy has good crushability and becomes an optimal alloy as a master alloy for sintered alloys. That is, the composition of the master alloy of the present invention is Ti: 5 to
50 wt%, Fe: 11 to 38 wt%, and the remainder is Al containing inevitable impurities.
These three elements are alloyed in advance.
本発明の母合金は純チタン粉末と混合して使用
するので、粒度もほゞ純チタン粉末と同程度に粉
砕できることが望ましい。すなわち、粒径100μ
ｍ以下、好ましくは150μｍ以下であつて250μｍ
以下の微粉末は少ない方が良い。 Since the master alloy of the present invention is used in combination with pure titanium powder, it is desirable that the master alloy can be ground to approximately the same particle size as pure titanium powder. i.e. particle size 100μ
m or less, preferably 150 μm or less and 250 μm
The smaller the amount of the following fine powder, the better.
本発明の母合金を使用して焼結チタン合金を製
造するには本発明母合金の粉末と純チタン粉末と
目標組成であるAl：5wt％、Fe：2.5wt％となる
ように配合して使用する。混合方法、焼結方法は
特に制約されるものではなく、従来公知の粉末冶
金技術が使用できる。 To produce a sintered titanium alloy using the master alloy of the present invention, the powder of the master alloy of the present invention and pure titanium powder are mixed so that the target composition is Al: 5wt% and Fe: 2.5wt%. use. The mixing method and the sintering method are not particularly limited, and conventionally known powder metallurgy techniques can be used.
本発明においては目標とする合金のAlとFeの
比率を維持しつつ、さらにTiを添加することに
より、材質が脆くなることを利用して効率良く粉
砕し、焼結合金用母合金として利用するものであ
る。
In the present invention, while maintaining the target ratio of Al and Fe in the alloy, by adding Ti, the material becomes brittle, which can be efficiently crushed and used as a master alloy for sintered alloys. It is something.
Ti−5Al−2.5Fe用母合金としてAl：52.8％、
Fe：26.8％、Ti：19.6％（重量％）組成の合金イ
ンゴツトをオーク溶解し、鋳造してインゴツトを
製造した。これをジヨークラツシヤーで破砕した
のちスタンプミルにより粉砕、それを100meshで
篩分し、篩下を母合金粉末とした。
Al as master alloy for Ti-5Al-2.5Fe: 52.8%,
An alloy ingot having a composition of Fe: 26.8% and Ti: 19.6% (wt%) was melted in oak and cast to produce an ingot. This was crushed with a geocrusher, then crushed with a stamp mill, sieved through a 100 mesh sieve, and the material under the sieve was used as a master alloy powder.
この母合金粉末9.4重量部と純チタン粉末90.6
重量部とを混合し、Ti−4.9Al−2.5Fe組成の原料
混合粉を得た。同粉末を7.3tonf／cm2で機械プレ
ス成形し1250℃で220分間真空焼結を行い、Ti−
5Al−2.5Fe焼結合金を得た。 9.4 parts by weight of this mother alloy powder and 90.6 parts by weight of pure titanium powder
Parts by weight were mixed to obtain a raw material mixed powder having a composition of Ti-4.9Al-2.5Fe. The same powder was mechanically press-formed at 7.3 tonf/cm 2 and vacuum sintered at 1250°C for 220 minutes.
A 5Al-2.5Fe sintered alloy was obtained.
この焼結合金の機械的特性を測定したところ、
従来公表されたものと同程度の値を得ており、材
質のバラツキも少なく均質なものが得られた。 When we measured the mechanical properties of this sintered alloy, we found that
Values comparable to those previously published were obtained, and a homogeneous material with little variation in material was obtained.
本発明によれば、粉砕が容易で目標粒度の粉末
が得やすい。また本発明の母合金を使用すれば
AlとFeの比率が常に目標合金組成になるよう維
持されており、純Ti粉末を配合するだけで良い
ので組成調整がきわめて容易となる。さらに、
Ti、Al、Feの３元素が合金化しているので、純
Ti粉末と母合金粉末との焼結が促進される利点
を有する。
According to the present invention, pulverization is easy and powder having a target particle size can be easily obtained. Furthermore, if the master alloy of the present invention is used,
The ratio of Al and Fe is always maintained at the target alloy composition, and composition adjustment is extremely easy because it is only necessary to mix pure Ti powder. moreover,
Since the three elements Ti, Al, and Fe are alloyed, the pure
This has the advantage of promoting sintering of the Ti powder and the master alloy powder.
Claims (1)
て、Ti含有量が５〜50wt％であり、A1とFeとの
比率がA1：Fe＝（5.0±0.5）：（2.5±0.5）を満足
することを特徴とするTi−5A1−2.5Fe燒結合金
用母合金。1 An alloy consisting essentially of A1, Fe, and Ti, with a Ti content of 5 to 50 wt%, and a ratio of A1 and Fe of A1:Fe=(5.0±0.5):(2.5±0.5). A master alloy for Ti-5A1-2.5Fe sintered alloy, which satisfies the requirements of Ti-5A1-2.5Fe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32998188A JPH02175831A (en) | 1988-12-27 | 1988-12-27 | Master alloy for ti-al-fe series sintered alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32998188A JPH02175831A (en) | 1988-12-27 | 1988-12-27 | Master alloy for ti-al-fe series sintered alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02175831A JPH02175831A (en) | 1990-07-09 |
| JPH0543775B2 true JPH0543775B2 (en) | 1993-07-02 |
Family
ID=18227435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32998188A Granted JPH02175831A (en) | 1988-12-27 | 1988-12-27 | Master alloy for ti-al-fe series sintered alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02175831A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106319283B (en) * | 2016-09-14 | 2018-07-24 | 沈阳泰恒通用技术有限公司 | Low-cost titanium alloy plate applied to titanium dinner plate and preparation method thereof |
| JP7333176B2 (en) * | 2019-02-26 | 2023-08-24 | 東邦チタニウム株式会社 | Casting alloy, method for producing master alloy powder, and master alloy powder |
| JP7430514B2 (en) * | 2019-11-05 | 2024-02-13 | 東邦チタニウム株式会社 | Casting alloy, method for producing master alloy powder, and method for producing casting alloy |
-
1988
- 1988-12-27 JP JP32998188A patent/JPH02175831A/en active Granted
Non-Patent Citations (2)
| Title |
|---|
| SCRIPTA METALLURGICA=1988 * |
| ZEITSCHRIFT FUR METALLKUNDE=1981 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02175831A (en) | 1990-07-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |