JPS62185850A - Wear-resistant intermetallic compound-type alloy excellent in toughness and machinability - Google Patents
Wear-resistant intermetallic compound-type alloy excellent in toughness and machinabilityInfo
- Publication number
- JPS62185850A JPS62185850A JP2851086A JP2851086A JPS62185850A JP S62185850 A JPS62185850 A JP S62185850A JP 2851086 A JP2851086 A JP 2851086A JP 2851086 A JP2851086 A JP 2851086A JP S62185850 A JPS62185850 A JP S62185850A
- Authority
- JP
- Japan
- Prior art keywords
- machinability
- alloy
- wear
- toughness
- intermetallic compound
- 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
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 38
- 239000000956 alloy Substances 0.000 title claims abstract description 38
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 6
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 4
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 4
- 229910052702 rhenium Inorganic materials 0.000 claims abstract 6
- 229910052804 chromium Inorganic materials 0.000 claims abstract 3
- 229910052742 iron Inorganic materials 0.000 claims abstract 3
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract 3
- 229910052758 niobium Inorganic materials 0.000 claims abstract 3
- 229910052715 tantalum Inorganic materials 0.000 claims abstract 3
- 229910052720 vanadium Inorganic materials 0.000 claims abstract 3
- 239000012535 impurity Substances 0.000 claims description 6
- 229910000765 intermetallic Inorganic materials 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 2
- 239000001995 intermetallic alloy Substances 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 claims 1
- 229910052735 hafnium Inorganic materials 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 9
- 229910052760 oxygen Inorganic materials 0.000 description 9
- 239000001301 oxygen Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910004356 Ti Raw Inorganic materials 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229910019567 Re Re Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 238000009750 centrifugal casting Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Landscapes
- Powder Metallurgy (AREA)
Abstract
Description
〔産業上の利用分野〕
この発明は、すぐれた靱性と被削性を有し、かつ耐摩耗
性にもすぐれ、例えば各種乾電池の合剤成型用金型や、
元ファイバーなどの引抜むロエ用ダイス、さらにバルブ
やポンプ部品などの耐ｗ１１部品の製造に用いるのに適
した金属間化合物型合金に関するものである。
〔従来の技術〕
従来、上記のような耐Ｊ９！耗注が要求される各種部材
の製造に、
ＮｉおよＱ Ｃｏのうちの１種または２種＝４５〜６０
％を含有し、残も）がＴｉと不可避不純物からなる組成
（以上原子％、以下％は原子％を示す）を有する金属間
ｆヒ合物型合金、
が用いらハている。
〔発明が解決しようとする問題点〕
しかし、この従来金Ａｍ １ｉｉ１ ｒヒ合物型合金は
、すぐれた耐摩耗性を有し、すぐ幻た性能を長期に亘っ
て発揮するものの、被削性が悪く、引ｌ ＩＪＩＩ工、
特に穴あけが困−であることから、初雑な形状の製品を
作るためには大変な熟練と時間を要し、これが製造コス
トを高める原因となっている。
さらに、この従来金属間[Industrial Field of Application] This invention has excellent toughness and machinability, as well as excellent wear resistance, and can be used, for example, in molds for molding mixtures of various dry cell batteries,
The present invention relates to intermetallic alloys suitable for use in dies for drawing original fibers and the like, as well as in the production of W11-resistant parts such as valves and pump parts. [Conventional technology] Conventionally, the above-mentioned J9! For manufacturing various parts that require wear and tear, one or two of Ni and QCo = 45-60
% and the remainder) is composed of Ti and unavoidable impurities. [Problems to be Solved by the Invention] However, although this conventional gold Am 1ii1 r arsenide type alloy has excellent wear resistance and exhibits excellent performance over a long period of time, it has poor machinability. It's bad, it's difficult,
In particular, since drilling holes is difficult, it requires great skill and time to make products with rough shapes, which causes high manufacturing costs. Furthermore, this conventional intermetallic
【ヒ合物型合金は、上記のよう
にＴｉ含有ｔが高いために、酸素を吸収し易く、合金中
の酸素含有蓋が多くなると急激に脆１ヒするようになっ
て、礪械叩工時に割れやクラックが発生し易くなること
から、合金の浴解沿よび鋳造に際しては、真空もしくは
十分に大気とば跡した不活性ガス雰囲気中で行なう必要
かあＩ）、また溶解原料にあっては、できるだけ酸素含
有量の少いものを使用するのが望ましいが、市販されて
いるＴｉ原料には、少なくとも５００〜ｌｆｉｏＯｐｐ
ｍの酸素を含有するものがあり、このような高い酸素含
有蓋のＴｉ原料を用いた場合には、前記の雰囲気中弔の
溶解および鋳造によっても、例えば１２００〜２０００
ｐｐｍの著しく高い酸素含有量の合金とならざるを得す
、この場合には著しい靱性不足が原因で機械加工を行う
ことができず、スクラップとならざるを得ないのが現状
である。
ｃ問題点を解決するための手段〕
そこで、本発明者等は、上述のような観点から、上記の
従来金属間ｆヒ合物型合金の被削性を教養し、かつ靱性
を同上させるべく研究を行なった結果、これに合金成分
としてＲｅを含有させると、上記従来金属間化合物型合
令のもつすぐれた耐摩耗性を損なうことなく、被Ａｌｌ
性が著しく向上するようになるばかも）でなく、このＲ
ｅ成分には、合金の素地中に固溶する酸素と結合して、
これを除去し、合金中の酸素含有量を著しく低減する作
用があることから、Ｒｅ成分を含有する合金はすぐれた
靱性をもつようになり、さらに同じく合金成分としてＨ
ｆを含有させると、一段と砿削性が向上し、また、同じ
く合金成分としてｐｅ ＋ Ｖ ＋ Ｎｂ ＋ Ｔａ
＠ Ｃｒ ｒ Ｍｏ ＋Ｗ、およびＭｎのうちの１種ま
たは２種以上（以下これらの成分を耐摩耗性向上成分と
いう）を含有させると、よリ一層耐摩耗性が向“上する
ようになるという知見を得たのである。
この発明は、上記知見にもとづいてなされたものであっ
て、
Ｎｉ！よびＣｏのうちの１種または２種：４７〜５３％
、
Ｒｅ：０．０５〜２％、
を含有し、さらに必要に応じて、
Ｈｆ：０．１〜２％と、
上記の耐摩耗性向上成分：０．１〜３％、のうちのいず
れか、または両方を包有し、残りがＴｉと不可避不純物
からなる組成を有する靱性および被削性のすぐれた耐摩
耗性金属間化合物型合金に特徴を有するものである。
つぎに、この発明の合金において、成分組成を上記の通
りに限定した畦由を説明する。
（ａｌ ＮｉおよびＣ。
これらの成分には、Ｔｉと結合して金属間ｆヒ合物を形
成し、合金の耐摩耗性を著しく向上させる作用があるが
、七の含有量が４７％未満ではＴｉの含有量が相対的に
多くな番）すぎて、１所望のすぐれた耐摩耗性を確保す
ることができず、一方その含有量が５３％を越えると、
相対的にＴｉの割合が少なくな番）すぎ、脆ｆヒ傾向が
急激に現ねねるようになることから、その含有量を４７
〜５３％と定めた。
（ｂｌ Ｒｅ
Ｒｅ成分（：は、上記のように合金の被削性を向上させ
るほか、合金の素地中に固溶する酸素と結合して、これ
を除去し、もって合金の靱性な向上せしめる作用がある
が、その含有量が０．０５％未満では前記作用に所望の
向上効果が得られず、一方その含有前が２％を越えると
、かえって合金に脆Ｃヒ知向が現われるようになること
から、その含有量を０．０５〜２％と定めた。
ｌｃｌ Ｈｆ
）Ｉｆ酸成分は、Ｒｅ成分によってもたらされる破削性
向上効果に卯えて、さらに被削性を一段と向上させる作
用があるので、特にすぐれた被削性が要求される場合に
必要に応じて含有されるが、その含有量が０．１％未満
では所望の被削性向ヒ効菓が得られず、一方その含有量
が２％を紳えると、合金に脆１ヒ頌向が現わハるように
なることから、その含有量を０．１〜２％と定めｙ５．
。
１ｄｌ 耐摩耗性向上成分
その含有量が０１１％未満では所望の耐し９粍注向上効
果が得られず、一方その含有前が３％を趣えると、脆１
ヒ頑向が現われるようになって被削性が劣１ヒするごと
から、その含有量を０．１〜３％と定めた。
〔実施料〕
つぎに、この発明の合金を実園例によ１）具体的（：説
明する。
プラズマアーク炉を用い、それぞれ第１表に示される成
分組成をもった合金溶湯を溶装し、インゴットに鋳造し
、再びこのインゴットをアーク炉にて溶解した後、遠心
鋳造法にてセラミック誌型に精密鋳造し、引続いて表面
研削加工を行なうことによって直径：２０ａｓＸ厚さ＝
５１の寸法をｂつた本発明合金１〜２６および従来合金
１〜４をそれぞれ製造した。
ついで、この結果得られた本発明合金１〜２６および従
来合金１〜４について、まず、靱性を評価する目的で、
直径：１０ｗφ×卑さ：３謬の寸法をもった試験片を切
出し、プリ４ル硬さ測定試Ｗａ機を用い、この試験片の
中心を７５０〜の荷重で押圧し、抑圧後の試験片におけ
る割れまｔはクラック発生の有無を観察し、また被削性
を評価する目的で、
ドリル材質：ＷＣ基超硬今合金
ドリル直径ニアｗφ、
ドリル回転数： ２００ ｒ、Ｄ−ｍ−の条件で穴あけ
試験を行ない、穴あけに要した時間を測定すると共に、
穴エッヂ部における欠は発生の有無を観察し、さらに耐
摩耗性を評価する目的で、ビッカース硬さを測定した。
これらの結果を第１表１＝示した。
〔発明の効果〕
第１表に示される結果から、本発明合金１〜２６は、い
ずれも従来合金１〜４と同等の高硬変（耐摩耗性）を有
し、かつこれよＩ】一段とすぐれた靱性および被削性を
有することが明ら′かである。
上述のように、この発明の合金は、すぐれた靱性および
被削性を有し、かつ耐摩耗性にもすぐれているので、各
種耐摩部品への適用にあたっては、その製品への機械（
２）工を割れやクラックの発生なく、容易に行なうこと
ができるばかりでなく、実用に際しても、すぐれた性能
を著しく長期に亘って発揮するなど工業上有用な特注を
有するのである。[As mentioned above, because the Ti content of the alloy is high, it easily absorbs oxygen, and as the amount of oxygen in the alloy increases, it rapidly becomes brittle and becomes brittle when hammered with a milling machine. Since cracks and cracks are likely to occur, it is necessary to perform bath melting and casting of alloys in a vacuum or in an inert gas atmosphere with sufficient exposure to the atmosphere. However, commercially available Ti raw materials contain at least 500~lfioOpp.
Some products contain 1,200 to 2,000 m of oxygen, and if such a high oxygen-containing Ti raw material is used, even by melting and casting in the atmosphere, for example, 1,200 to 2,000 m of oxygen.
The current situation is that an alloy with an extremely high oxygen content (ppm) cannot be machined due to a significant lack of toughness and must be scrapped. Measures for Solving Problems c] Therefore, from the above-mentioned viewpoints, the present inventors have studied the machinability of the conventional intermetallic f-hybrid type alloys and have developed a method for improving the toughness. As a result of our research, we found that if Re is included as an alloying component, the alloy can be used without impairing the excellent wear resistance of the conventional intermetallic compound type alloy.
This R
The e component combines with oxygen solidly dissolved in the matrix of the alloy,
Since it has the effect of removing this and significantly reducing the oxygen content in the alloy, alloys containing Re have excellent toughness.
When f is included, the machinability is further improved, and also when pe + V + Nb + Ta is added as an alloy component.
It is said that when one or more of @Cr r Mo + W and Mn (hereinafter these components are referred to as wear resistance improving components) are contained, the wear resistance is further improved. This invention was made based on the above knowledge, and one or two of Ni! and Co: 47 to 53%.
, Re: 0.05 to 2%, and, if necessary, Hf: 0.1 to 2%, and any of the above wear resistance improving components: 0.1 to 3%. , or both, with the remainder consisting of Ti and unavoidable impurities, and is characterized by a wear-resistant intermetallic compound type alloy with excellent toughness and machinability. Next, the reason for the ridges in which the composition of the alloy of the present invention is limited as described above will be explained. (Al Ni and C. These components combine with Ti to form intermetallic f-hybrid compounds and have the effect of significantly improving the wear resistance of the alloy. However, if the content of Ni and C is less than 47%, If the Ti content is relatively high, it is not possible to secure the desired excellent wear resistance, and on the other hand, if the Ti content exceeds 53%,
If the proportion of Ti is relatively low, the brittle tendency will suddenly appear, so the content should be increased to 47%.
It was set at ~53%. (bl Re Re component (:) not only improves the machinability of the alloy as described above, but also combines with and removes oxygen dissolved in the matrix of the alloy, thereby improving the toughness of the alloy. However, if its content is less than 0.05%, the desired effect of improving the above action cannot be obtained, while if its content exceeds 2%, brittle C characteristics will appear in the alloy instead. Therefore, the content was determined to be 0.05 to 2%.In addition to the effect of improving machinability brought about by the Re component, the acid component has the effect of further improving machinability. Therefore, it is included as necessary when particularly excellent machinability is required, but if the content is less than 0.1%, the desired machinability-promoting effect cannot be obtained; When the content of 2% increases, the alloy becomes susceptible to brittleness, so its content is set at 0.1 to 2% y5.
. 1dl Wear resistance improving component If the content is less than 0.11%, the desired effect of improving wear resistance cannot be obtained; on the other hand, if the content before its content is 3%, the brittleness 1.
The content was determined to be 0.1 to 3% because the machinability deteriorated as hardness began to appear. [Practice fee] Next, the alloy of the present invention will be specifically explained using practical examples. Using a plasma arc furnace, molten alloys having the respective compositions shown in Table 1 were welded. , is cast into an ingot, melted again in an arc furnace, precision cast into a ceramic magazine mold using a centrifugal casting method, and subsequently subjected to surface grinding to obtain a diameter of 20 as x thickness =
Inventive alloys 1 to 26 and conventional alloys 1 to 4 having dimensions of 51 were manufactured, respectively. Next, for the purpose of evaluating the toughness of the resulting alloys of the present invention 1 to 26 and conventional alloys 1 to 4,
Diameter: 10wφ For the purpose of observing the occurrence of cracks and evaluating machinability, the following conditions were used: Drill material: WC-based cemented carbide, drill diameter near wφ, drill rotation speed: 200 r, Dm- We conducted a hole drilling test and measured the time required to drill the hole.
The presence or absence of cracks at the hole edges was observed, and Vickers hardness was measured for the purpose of evaluating wear resistance. These results are shown in Table 1. [Effects of the Invention] From the results shown in Table 1, alloys 1 to 26 of the present invention all have high hardness (wear resistance) equivalent to conventional alloys 1 to 4, and are even more It is clear that it has excellent toughness and machinability. As mentioned above, the alloy of the present invention has excellent toughness and machinability, as well as excellent wear resistance.
2) Not only can it be easily processed without cracking or cracking, but it also has special features that are industrially useful, such as exhibiting excellent performance over a long period of time in practical use.
Claims (3)
５３％、 Ｒｅ：０．０５〜２％、 を含有し、残りがＴｉと不可避不純物からなる組成（以
上原子％）を有することを特徴とする靱性および被削性
のすぐれた耐摩粍性金属間化合物型合金。(1) One or two of Ni and Co: 47~
53%, Re: 0.05-2%, and the remainder consists of Ti and unavoidable impurities (at %). A wear-resistant metal with excellent toughness and machinability. Compound type alloy.
５３％、 Ｒｅ：０．０５〜２％、 を含有し、さらに、 Ｈｆ：０．１〜２％、 を含有し、残りがＴｉと不可避不純物からなる組成（以
上原子％）を有することを特徴とする靱性および被削性
のすぐれた耐摩耗性金属間化合物型合金。(2) One or two of Ni and Co: 47~
53%, Re: 0.05 to 2%, and further contains Hf: 0.1 to 2%, with the remainder consisting of Ti and inevitable impurities (at least atomic %). A wear-resistant intermetallic alloy with excellent toughness and machinability.
５３％、 Ｒｅ：０．０５〜２％、 を含有し、さらに Ｆｅ、Ｖ、Ｎｂ、Ｔａ、Ｃｒ、Ｍｏ、Ｗ、およびＭｎの
うちの１種または２種以上：０．１〜３％、を含有し、
残りがＴｉと不可避不純物からなる組成（以上原子％）
を有することを特徴とする靱性および被削性のすぐれた
耐摩耗性金属間化合物型合金。 １４）ＮｉおよびＣｏのうちの１種または２種：４７〜
５３％、 Ｒｅ：０．０５〜２％、 を含有し、さらに、 Ｈｆ：０．１〜２％、 Ｆｅ、Ｖ、Ｎｂ、Ｔａ、Ｃｒ、Ｍｏ、Ｗ、およびＭｎの
うちの１種または２種以上：０．１〜３％、を含有し、
残りがＴｉと不可避不純物からなる組成（以上原子％）
を有することを特徴とする靱性および被削性のすぐれた
耐摩耗性金属間化合物型合金。(3) One or two of Ni and Co: 47~
53%, Re: 0.05-2%, further containing one or more of Fe, V, Nb, Ta, Cr, Mo, W, and Mn: 0.1-3%, Contains
Composition with the remainder consisting of Ti and unavoidable impurities (more than atomic %)
A wear-resistant intermetallic compound alloy with excellent toughness and machinability. 14) One or two of Ni and Co: 47~
53%, Re: 0.05 to 2%, and further contains one or two of Hf: 0.1 to 2%, Fe, V, Nb, Ta, Cr, Mo, W, and Mn. More than seeds: Contains 0.1 to 3%,
Composition with the remainder consisting of Ti and unavoidable impurities (more than atomic %)
A wear-resistant intermetallic compound alloy with excellent toughness and machinability.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2851086A JPS62185850A (en) | 1986-02-12 | 1986-02-12 | Wear-resistant intermetallic compound-type alloy excellent in toughness and machinability |
| CA000524669A CA1279210C (en) | 1985-12-23 | 1986-12-05 | Wear-resistant intermetallic compound alloy having improved machineability |
| GB8630189A GB2186593B (en) | 1985-12-23 | 1986-12-17 | Wear-resistant multicomponent alloy having improved machineability |
| US07/120,177 US4874577A (en) | 1985-12-23 | 1987-11-09 | Wear-resistant intermetallic compound alloy having improved machineability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2851086A JPS62185850A (en) | 1986-02-12 | 1986-02-12 | Wear-resistant intermetallic compound-type alloy excellent in toughness and machinability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62185850A true JPS62185850A (en) | 1987-08-14 |
Family
ID=12250672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2851086A Pending JPS62185850A (en) | 1985-12-23 | 1986-02-12 | Wear-resistant intermetallic compound-type alloy excellent in toughness and machinability |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62185850A (en) |
-
1986
- 1986-02-12 JP JP2851086A patent/JPS62185850A/en active Pending
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