JPS6089552A - Wear-resistant alloy having high magnetic permeability - Google Patents
Wear-resistant alloy having high magnetic permeabilityInfo
- Publication number
- JPS6089552A JPS6089552A JP58196235A JP19623583A JPS6089552A JP S6089552 A JPS6089552 A JP S6089552A JP 58196235 A JP58196235 A JP 58196235A JP 19623583 A JP19623583 A JP 19623583A JP S6089552 A JPS6089552 A JP S6089552A
- Authority
- JP
- Japan
- Prior art keywords
- alloy
- wear
- wear resistance
- magnetic permeability
- high magnetic
- 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
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 18
- 239000000956 alloy Substances 0.000 title claims abstract description 18
- 230000035699 permeability Effects 0.000 title claims description 6
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 8
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 8
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 8
- 229910052715 tantalum Inorganic materials 0.000 claims abstract description 8
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 8
- 229910052790 beryllium Inorganic materials 0.000 claims abstract description 7
- 229910052796 boron Inorganic materials 0.000 claims abstract description 7
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 7
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 7
- 229910052727 yttrium Inorganic materials 0.000 claims abstract description 7
- 229910052735 hafnium Inorganic materials 0.000 claims abstract description 6
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 239000011162 core material Substances 0.000 description 8
- 229910000531 Co alloy Inorganic materials 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910001020 Au alloy Inorganic materials 0.000 description 1
- 229910000521 B alloy Inorganic materials 0.000 description 1
- 229910000808 amorphous metal alloy Inorganic materials 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000002178 crystalline material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003353 gold alloy Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229910001004 magnetic alloy Inorganic materials 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Landscapes
- Soft Magnetic Materials (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はＦｅ−３ｉ−Ａ、１２−Ｔｉ−Ｃｏ系合金に関
し。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a Fe-3i-A, 12-Ti-Co alloy.
特に耐摩耗性が優れさらに硬さを向上させた磁気ヘッド
コア用磁性合金に関する。In particular, the present invention relates to a magnetic alloy for magnetic head cores that has excellent wear resistance and improved hardness.
近年ＶＴＲ分野における高記録密度化に伴ない８ ｍｍ
ＶＴＲが提案されており、記録媒体およびヘッドコア
材の見直しが図られている。記録媒体としては高保磁力
化のために、従来のγ−Ｆｅ２０３塗伺型テープから塗
付型メタルテープや蒸着型メタルテープへの移行が提案
されている。一方ヘノドコア制料としては、従来のフェ
ライト単結晶では飽和磁束密度が小さすぎるため高飽和
磁束密度を有する材料９例えば結晶質材料ではＦｅ−３
ｉ−Ａｎ系合金が、またＣｏ−Ｆｅ−８ｉ−Ｂ系に代表
される非晶質合金が期待されている。In recent years, with the increase in recording density in the VTR field, 8 mm
VTRs have been proposed, and efforts are being made to review the recording medium and head core material. In order to increase the coercive force of the recording medium, it has been proposed to shift from the conventional γ-Fe203 coated tape to a coated metal tape or a vapor deposited metal tape. On the other hand, as a henodo core material, since the saturation magnetic flux density of conventional ferrite single crystal is too small, materials with high saturation magnetic flux density 9 For example, crystalline materials such as Fe-3
i-An alloys and amorphous alloys typified by Co-Fe-8i-B alloys are expected.
非晶質合金をヘッドコア材料として用いる場合、これは
薄いリボン状試料の材料であるため。When using an amorphous alloy as the head core material, this is because it is a thin ribbon-like specimen material.
ギャップを正確に作ることが極めて困難でヘッド化しに
＜＜、また経年変化等の安定性についての実績がない。It is extremely difficult to create a gap accurately, making it difficult to make a head, and there is no track record of stability over time.
さらには面ｊ摩粍性がＦｅ−８ｉ−Ａｌ系合金よりも悪
いため実用化は今後の課題である。Furthermore, since the surface abrasiveness is worse than that of the Fe-8i-Al alloy, its practical application remains a challenge in the future.
そこで注目されているのがＦｅ−３ｉ−Ａｊ２系合金で
あり、これは一部数送用４ヘット形ＶＴＲにおいて実際
に使用されておシ、磁気特性上は特に大きな問題はない
。しかしＦｅ−８ｉ−ＡＪ２系合金をヘッドコアに使用
したヘッドでは、テープ走行時にコアのテープ摺動面に
焼付き現象が生じ。Therefore, the Fe-3i-Aj2 alloy is attracting attention, and this is actually used in some multi-feed 4-head VTRs, and there are no particular problems in terms of magnetic properties. However, in a head using Fe-8i-AJ2 alloy for the head core, a seizure phenomenon occurs on the tape sliding surface of the core during tape running.
出力特性が低下してし１い、ヘットとしての特性が劣化
するという問題があった。There is a problem in that the output characteristics tend to deteriorate and the characteristics as a head deteriorate.
さらに、ヘット組立ての容易さ、特に巻線の容易さの点
からは、コアの材料が硬い方が望ましい。しかし従来の
Ｆｅ−３ｉ−Ａｎ系合金ではビッカース硬さはＨＶ＝４
８０〜５６Ｏと硬いが９巻線時にひずみが導入されたり
割れたシするため、さらに硬い利相が望捷れている。Furthermore, from the viewpoint of ease of head assembly, especially ease of winding, it is desirable that the core material be hard. However, in the conventional Fe-3i-An alloy, the Vickers hardness is HV=4
Although it is hard at 80 to 56O, it is likely to be strained or cracked during the 9th winding, so it is hoped that it will be even harder.
本発明者らはテープ走行時に焼伺きがなくしかも硬さの
高い材料として、Ｓｉ４〜１２％、Ａ、Ｑ３〜８％、Ｔ
１２〜５％、００１〜５捗残部が実質的にＦｅよりなる
新規な合金を先に見い出した（特願昭５８−４６００９
）。Ｆｅ−３ｉ−Ａｆｉ−Ｔｉ−Ｃｏ合金は常温常湿
下における耐摩耗性は極めて優れているが、高温多湿下
における耐摩耗性は劣るという欠点があった。そこで種
々検討した結果。The present inventors have developed Si4-12%, A, Q3-8%, T
We have previously discovered a new alloy in which the balance of 001-5 is substantially Fe (Japanese Patent Application No. 46009/1986).
). Although the Fe-3i-Afi-Ti-Co alloy has extremely excellent wear resistance under normal temperature and normal humidity conditions, it has a drawback in that its wear resistance under high temperature and high humidity conditions is poor. This is the result of various considerations.
Ｓｉ４〜１２係、ＡｆＶ、３〜８％、Ｔ１２〜５係、Ｃ
０１〜５％残部Ｆｅからなる合金に、 Ｖ、 Ｎｂ、
Ｔａ、 Ｃｒ、 Ｍｏ 。Si4-12, AfV, 3-8%, T12-5, C
An alloy consisting of 01 to 5% balance Fe, V, Nb,
Ta, Cr, Mo.
Ｗおよび白金族元素の中から選ばれた少なくとも一種を
０．１〜５％、およびＢｅ 、 Ｂ、 Ｚｒ 、 Ｙ、
Ｈｆおよび希土類元素の中から選ばれた少なくとも１
種を０．０１〜１ｑｂを、総量で０．１〜６％添加する
ことによシ、高温高湿下における耐摩耗性が改善される
ことを見い出し本発明に至ったものである。０１〜５％
のＶ、 Ｎｂ、 Ｔａ、 Ｃｒ、 Ｍｏ 、 Ｗ白金族
元素および、０．０１〜１％のＢｅ、 Ｂ、 Ｚｒ、
Ｙ、 Ｈｆ希土類元素を総量で０．１〜６％添加するこ
とにより。0.1 to 5% of at least one selected from W and platinum group elements, and Be, B, Zr, Y,
At least one selected from Hf and rare earth elements
The inventors have discovered that adding 0.01 to 1 qb of seeds, in a total amount of 0.1 to 6%, improves wear resistance under high temperature and high humidity conditions, leading to the present invention. 01~5%
V, Nb, Ta, Cr, Mo, W platinum group elements and 0.01-1% Be, B, Zr,
By adding Y, Hf rare earth elements in a total amount of 0.1 to 6%.
高温高湿下での耐摩耗性が向上する原因は、上記元素を
添加することにより原子間の結合力が強められ、さらに
耐食性が高捷るためであると考えられる。The reason why the wear resistance under high temperature and high humidity conditions is improved is thought to be that the addition of the above elements strengthens the bonding force between atoms and further increases the corrosion resistance.
本発明においてＳ】量を４〜１２％、 ＡＩＶ、量を６
〜８％としだのはこの範囲外では磁気特性なかでも実効
透磁率が著しく劣化するためである。In the present invention, S] amount is 4 to 12%, AIV, amount is 6
The reason why it is set at ~8% is that outside this range, effective magnetic permeability among other magnetic properties deteriorates significantly.
Ｔｉは焼付防止および硬さの向上のために添加するもの
で、２係未満の添加でも硬さは若干向上するが焼付防止
とならないため２係以」−の添加が必要である。しかし
ながら５％を越えて添加すると切削および研削加工が極
めて困難となる。このためＴ１の添加量は２〜５９１８
が良く１後述する添加元素との関係から、さらに好まし
くは２〜４φが良い。Ti is added to prevent seizure and improve hardness, and if it is added in an amount less than 2 parts, the hardness will improve slightly, but it will not prevent seizure, so it is necessary to add more than 2 parts. However, if it is added in excess of 5%, cutting and grinding becomes extremely difficult. Therefore, the amount of T1 added is 2 to 5918
In view of the relationship with the additional elements described below, the diameter is more preferably 2 to 4.
ＣｏはＴｉおよび後述する各種元素を添加したときに低
下する飽和磁束密度ＢＩＯをＦｅとの相乗作用で向上さ
せるために添加するもので１％未満ではＢＩＯを向上さ
ぜ得なく、５％を越えると実効透磁率が劣化してし丑う
ため、 Ｃｏの添加量としては１〜５％が良く、さらに
好ましくは２〜４％が良い。Co is added to improve the saturation magnetic flux density BIO, which decreases when Ti and various elements described below are added, through a synergistic effect with Fe, and if it is less than 1%, it is impossible to improve BIO, and if it exceeds 5%. Therefore, the amount of Co added is preferably 1 to 5%, more preferably 2 to 4%.
またＶ、Ｎｂ、Ｔａ、Ｃｒ、Ｍｏ、Ｗおよび白金族元素
の少なくとも一種を０，１〜５係、およびＢｅ、Ｂ。Further, V, Nb, Ta, Cr, Mo, W, and at least one of platinum group elements in a proportion of 0.1 to 5, and Be and B.
Ｚｒ、 Ｙ、 Ｈｆ 、および希土類元素の少なくとも
一種を００１〜１％添加することにより高温高湿下にお
ける耐摩耗性が向上するが、」二記範囲の下限値未満で
はその効果が明らかには認められない。Ｖ、 Ｎｂ、
Ｔａ、 Ｃｒ、 Ｍｏ 、 Ｗおよび白金族元素を５％
を越えて添加すると磁歪中０の組成が得難く実効透磁率
が低下し、捷たＢｅ、 Ｂ、 Ｚｒ、 Ｙ、 Ｈｆおよ
び希土類元素を１％を越えて添加すると。Addition of Zr, Y, Hf, and at least one of rare earth elements in an amount of 0.01 to 1% improves wear resistance under high temperature and high humidity conditions, but the effect is not clearly recognized below the lower limit of the range mentioned in 2. I can't do it. V, Nb,
5% Ta, Cr, Mo, W and platinum group elements
If added in excess of 1%, it is difficult to obtain a composition with zero magnetostriction, and the effective permeability decreases, and if added in excess of 1% of slender Be, B, Zr, Y, Hf, and rare earth elements.
切削および研削加工性が劣化する。さらにこれら元素は
上記理由から総量で０．１〜６％添加が良い。Cutting and grinding properties deteriorate. Further, for the above reasons, it is preferable to add these elements in a total amount of 0.1 to 6%.
なお本発明合金中に含まれる不純物としてはｃ、 ｓ、
ｏが考えられるが、Ｃは５０ｐｐｍ以下、さらに好捷
しくは３０ ｐｐｍ以下、Ｓは３０ ｐｐｍ以下。The impurities contained in the alloy of the present invention include c, s,
o is considered, but C is 50 ppm or less, more preferably 30 ppm or less, and S is 30 ppm or less.
さらに好捷しくけ３ ｐｐｍ以下、０は３０ ｐｐｍ以
下。In addition, the level of good performance is 3 ppm or less, and 0 is 30 ppm or less.
さらに好ましくは１０ｐｐｍ以下が、耐食性を改善する
のに効果的である。More preferably, 10 ppm or less is effective for improving corrosion resistance.
以下７本発明を実施例に基ついて説明する。The present invention will be explained below based on seven examples.
〈実施例−１〉
表−１に示す組成を有するインゴットをアーク溶解にて
作製し、これに１２００℃で２時間均質化焼鈍を施した
後、放電加工１機械加工により試料を作製し、測定に供
した。<Example-1> An ingot having the composition shown in Table-1 was produced by arc melting, homogenized annealed at 1200°C for 2 hours, and then a sample was produced by electric discharge machining 1 and measured. Served.
実効透磁率μｅは外径５ｍｍ、内径’！＞ｍｍ、厚さ０
．０３＋ｉ＋πのリング状試料を用い２周波数５ＭＨｚ
。The effective magnetic permeability μe is 5 mm in outer diameter and 5 mm in inner diameter! >mm, thickness 0
．． 2 frequencies 5MHz using a ring-shaped sample of 03+i+π
.
印加磁界１ｍ０ｅで測定した。硬さＨｖは２０ Ｘ ２
０×１０（厚み）の試料を用い、荷重Ｉ Ｋｙで測定し
た。測定に先立ち、９００℃で６時間の磁性焼鈍を施し
た。この結果を表−１に示す。Measurement was performed with an applied magnetic field of 1 m0e. Hardness Hv is 20 x 2
The measurement was performed using a sample of 0x10 (thickness) and a load of I Ky. Prior to measurement, magnetic annealing was performed at 900° C. for 6 hours. The results are shown in Table-1.
次にこれらの合金を用いてビデオヘッドを試作し耐摩耗
試験を行なった。このとき用いた磁気テープは塗イ」型
メタルテープ（保磁カニ約１５０００ｅ ）であり、テ
ープとヘッドの相対速度は３．４５ｍ／秒とし、ビデオ
デツキは市販の家庭用とした。試験環境は常温常湿およ
び高温多湿（４０℃、８０％）の２条件とし、 ５００
時間テープ走行後のへノド表面の焼料きの有無および摩
耗深さを調べた。この結果を表−１に示す。Next, a video head was prototyped using these alloys and a wear resistance test was conducted. The magnetic tape used at this time was a coated A-type metal tape (retention force of approximately 15,000 e), the relative speed between the tape and the head was 3.45 m/sec, and the video deck was a commercially available home-use video deck. The test environment was two conditions: normal temperature and humidity and high temperature and humidity (40℃, 80%).
The presence or absence of charring on the henode surface and the depth of wear after running the tape for a time were examined. The results are shown in Table-1.
なお表−１に示した試料の不純物を分析した結果、Ｃは
３０ ｐｐｍ以下、Ｓは３ ｐｐｍ以下、０は３０ ｐ
ｐｍ以下であった。As a result of analyzing the impurities of the samples shown in Table 1, C is 30 ppm or less, S is 3 ppm or less, and 0 is 30 ppm or less.
It was below pm.
表−１よｐ 、 Ｆｅ−３ｉ−Ａｌ１−Ｔｉ−Ｃｏ合金
にＶ、Ｎｂ。From Table 1, V and Nb are added to the Fe-3i-Al1-Ti-Co alloy.
Ｔａ、Ｃｒ、Ｍｏ、Ｗ白金族元素Ｂｅ、 Ｂ、ｚｒ、
Ｙ、 Ｈｆ 。Ta, Cr, Mo, W platinum group elements Be, B, zr,
Y, Hf.
および希土類元素を添加することにより、実効透磁率、
硬さが向上し、摩耗深さ、特に高温高湿下における摩耗
深さが改善されており、また合金番号１を除いて焼付き
が認められなかった。By adding rare earth elements, effective permeability,
The hardness was improved and the wear depth, especially the wear depth under high temperature and high humidity conditions, was improved, and no seizure was observed except for Alloy No. 1.
以上述べた如く２本発明合金はＦｅ−８ｉ−Ａμ金合金
致命的な欠点と考えられていた焼料き現象が全くおこら
ず、しかも使用環境を問わず１制摩耗性が優れている新
規な合金である。故に本発明合金はＶＴＲの画像ヘッド
コア材に用いて好適であり、さらにはＶＴＲの音声コン
トロールへノド、またオーディオ分野、コンピュータ分
野等の各種磁気記録分野のへノドにも好適である。As mentioned above, the alloy of the present invention is a new alloy that does not suffer from the sintering phenomenon that was thought to be a fatal drawback of Fe-8i-Aμ gold alloys, and has excellent wear resistance regardless of the environment in which it is used. It is an alloy. Therefore, the alloy of the present invention is suitable for use in the image head core material of VTRs, and is also suitable for use in audio control of VTRs, and in various magnetic recording fields such as the audio field and the computer field.
以下余日Remaining days below
Claims (1)
ｊ ２−５ｅＩＪ。 Ｃｏ’ｌ〜５係および残部Ｆｅを主成分とし、副成分と
して、 Ｖ、Ｎｂ、Ｔａ、Ｃｒ、Ｍｏ、Ｗおよび白金族
元素の中から選ばれた少なくとも１種を０１〜５％。 およびＢｅ、 Ｂ、 Ｚｒ、 Ｙ、 Ｈｆおよび希土類
元素の中から選ばれた少なくとも１種を０．０１〜１％
を含み、該副成分は総量で０１〜６飴であることを特徴
とする耐摩耗性高透磁率合金。[Claims] 1. By weight: Si 4-12%, A13-8%, T
j 2-5eIJ. The main components are Co'l~5 and the balance Fe, and as subcomponents, 01 to 5% of at least one selected from V, Nb, Ta, Cr, Mo, W and platinum group elements. and 0.01 to 1% of at least one selected from Be, B, Zr, Y, Hf and rare earth elements.
A wear-resistant high permeability alloy characterized in that the total amount of the subcomponents is 01 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58196235A JPS6089552A (en) | 1983-10-21 | 1983-10-21 | Wear-resistant alloy having high magnetic permeability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58196235A JPS6089552A (en) | 1983-10-21 | 1983-10-21 | Wear-resistant alloy having high magnetic permeability |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6089552A true JPS6089552A (en) | 1985-05-20 |
| JPS6151023B2 JPS6151023B2 (en) | 1986-11-07 |
Family
ID=16354445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58196235A Granted JPS6089552A (en) | 1983-10-21 | 1983-10-21 | Wear-resistant alloy having high magnetic permeability |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6089552A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5273836A (en) * | 1987-04-14 | 1993-12-28 | Yamaha Corporation | Magnetooptic recording material |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0250205U (en) * | 1988-10-01 | 1990-04-09 | ||
| JPH0250206U (en) * | 1988-10-01 | 1990-04-09 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54162613A (en) * | 1978-06-15 | 1979-12-24 | Hitachi Metals Ltd | High magnetic permeability alloy |
| JPS552783A (en) * | 1978-11-10 | 1980-01-10 | Hitachi Metals Ltd | Wear resistant alloy of high permeability |
| JPS5562144A (en) * | 1978-10-31 | 1980-05-10 | Hitachi Metals Ltd | Corrosion resistant, high permeability alloy |
-
1983
- 1983-10-21 JP JP58196235A patent/JPS6089552A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54162613A (en) * | 1978-06-15 | 1979-12-24 | Hitachi Metals Ltd | High magnetic permeability alloy |
| JPS5562144A (en) * | 1978-10-31 | 1980-05-10 | Hitachi Metals Ltd | Corrosion resistant, high permeability alloy |
| JPS552783A (en) * | 1978-11-10 | 1980-01-10 | Hitachi Metals Ltd | Wear resistant alloy of high permeability |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5273836A (en) * | 1987-04-14 | 1993-12-28 | Yamaha Corporation | Magnetooptic recording material |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6151023B2 (en) | 1986-11-07 |
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