JPH01177330A - Ni-based alloy having excellent corrosion resistance and wear resistance - Google Patents
Ni-based alloy having excellent corrosion resistance and wear resistanceInfo
- Publication number
- JPH01177330A JPH01177330A JP173688A JP173688A JPH01177330A JP H01177330 A JPH01177330 A JP H01177330A JP 173688 A JP173688 A JP 173688A JP 173688 A JP173688 A JP 173688A JP H01177330 A JPH01177330 A JP H01177330A
- Authority
- JP
- Japan
- Prior art keywords
- corrosion resistance
- alloy
- resistance
- wear resistance
- wear
- 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
- 238000005260 corrosion Methods 0.000 title claims abstract description 33
- 230000007797 corrosion Effects 0.000 title claims abstract description 33
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 31
- 239000000956 alloy Substances 0.000 title claims abstract description 31
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 18
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 9
- 239000012535 impurity Substances 0.000 claims abstract description 6
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract 3
- 229910052742 iron Inorganic materials 0.000 claims abstract 2
- 230000032683 aging Effects 0.000 abstract description 8
- 239000011159 matrix material Substances 0.000 abstract description 8
- 238000011282 treatment Methods 0.000 abstract description 7
- 229910052759 nickel Inorganic materials 0.000 abstract description 5
- 229910001182 Mo alloy Inorganic materials 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 13
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 8
- 229910001566 austenite Inorganic materials 0.000 description 6
- 150000001247 metal acetylides Chemical class 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 239000002244 precipitate Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 238000005482 strain hardening Methods 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 101150096839 Fcmr gene Proteins 0.000 description 1
- 229910000756 V alloy Inorganic materials 0.000 description 1
- WAIPAZQMEIHHTJ-UHFFFAOYSA-N [Cr].[Co] Chemical compound [Cr].[Co] WAIPAZQMEIHHTJ-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000005255 carburizing Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- -1 hydrofluoric acid Chemical class 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 230000004580 weight loss Effects 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、フッ酸をはじめとする各種酸に対して良好な
耐食性を有し、かつ、酸化物粒子、炭化物粒子などの各
種硬質粒子に対して良好な耐摩耗性を有する耐食性およ
び耐摩耗性のすぐれたＮｉ基合金に関するものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention has good corrosion resistance against various acids including hydrofluoric acid, and is resistant to various hard particles such as oxide particles and carbide particles. The present invention relates to a Ni-based alloy that has excellent corrosion resistance and wear resistance.
ガラス繊維、炭素繊維などの強化繊維やＳ Ｌ ＣｒＳ
ｉｎ２．ＡＬ、Ｏ，などの各種硬質粒子を含むフッ素樹
脂などのプラスチックおよびゴムなどの可塑物の射出成
形および押出成形に代表されるような厳しい腐食摩耗環
境において使用される材料には、すぐれた耐食性と硬質
粒子に対する耐摩耗性が同時に要求される。従来このよ
うな環境において使用される材料として、耐食性のすぐ
れたハステロイ−ＣのようなＮ ｉ−Ｃｒ−Ｍ ｏ系合
金や、耐摩耗性のすぐれたＪＩＳ ５ＫＤＩＩ相当の
Ｆｅ−Ｃ−Ｃｒ−Ｍｏ−Ｖ系合金をはじめとする各種耐
摩耗鋼やＣｒ−Ｍ ｏ ！ｌなどの構造用合金鋼および
耐摩耗性改善のため、これらに浸炭、窒化、Ｃｒメツキ
などの表面処理を施したものが知られている。Reinforced fibers such as glass fiber and carbon fiber, S L CrS
in2. Materials used in severe corrosive wear environments, such as injection molding and extrusion molding of plastics such as fluororesin and rubber, containing various hard particles such as AL, O, etc., have excellent corrosion resistance and Abrasion resistance against hard particles is also required. Conventionally, materials used in such environments include Ni-Cr-Mo alloys such as Hastelloy-C, which has excellent corrosion resistance, and Fe-C-Cr-Mo equivalent to JIS 5KDII, which has excellent wear resistance. Various wear-resistant steels including -V alloys and Cr-Mo! Structural alloy steels such as 1, and those subjected to surface treatments such as carburizing, nitriding, and Cr plating to improve wear resistance are known.
しかしながら、前者のＮｉ−Ｃｒ−Ｍｏ系合金は耐食性
は良好であるが、耐摩耗性が不十分であり、冷間加工に
よりかたさを高め、耐摩耗性を改善するなどの対策がと
られているが、依然十分とは言えない。また、後者の鋼
では耐摩耗性は良いが、耐食性が不十分なため、厳しい
腐食環境での使用には適さない。以上のように腐食と摩
耗の共存する環境においては、従来の材料では必ずしも
十分ではなく、すぐれた耐食性と耐摩耗性の両者を合わ
せもつ材料が強く要望されていた。However, although the former Ni-Cr-Mo alloy has good corrosion resistance, it has insufficient wear resistance, and countermeasures such as increasing hardness through cold working and improving wear resistance have been taken. However, it is still not enough. Furthermore, although the latter type of steel has good wear resistance, it has insufficient corrosion resistance and is therefore not suitable for use in severe corrosive environments. As described above, in an environment where corrosion and wear coexist, conventional materials are not necessarily sufficient, and there is a strong demand for materials that have both excellent corrosion resistance and wear resistance.
本発明はかかる点に鑑み、すぐれた耐食性と耐摩耗性を
合わせもつ新規なＮｉ基合金を提供するものである。In view of these points, the present invention provides a novel Ni-based alloy that has both excellent corrosion resistance and wear resistance.
本発明者らは、かかる問題点を解決すべく検討した結果
、耐食性の非常にすぐれたＮ ｉ−Ｃｒ−Ｍ 。The present inventors have studied to solve these problems and found that Ni-Cr-M has excellent corrosion resistance.
系合金にＣ，Ａｌ、Ｔｉ、Ｎｂを所定量含有させること
により、かたさの高いＭＣ型炭化物がオーステナイト基
地に分散して耐摩耗性が大幅に向上するだけでなく、炭
化物を形成した後も基地中に残留しているＡＩ、Ｔｉ、
Ｎｂが時効処理を行なうことにより基地に整合した微細
析出物として析出することでかたさが大幅に向上し、か
つ実用上十分な耐食性が維持されることを新たに見出し
本発明をなした。By containing a predetermined amount of C, Al, Ti, and Nb in the alloy, the highly hard MC type carbide is dispersed in the austenite base, which not only greatly improves wear resistance, but also maintains the base even after the carbide is formed. The remaining AI, Ti,
The present invention was made based on the new discovery that, through aging treatment, Nb precipitates as fine precipitates that match the matrix, thereby significantly improving hardness and maintaining practically sufficient corrosion resistance.
本発明は、重量％でＣ：０．４〜１．５％、 Ｃｒ：
１０−１６％。In the present invention, C: 0.4 to 1.5%, Cr:
10-16%.
Ｍｏ：９〜１６％、 Ａｌ：１．５％以下さらニＴｉ：
７．５％以下とＮｂ：２〜１４％の一種または二種、残
部：Ｎｉおよび不可避的不純物よりなり、かつ、Ｃ，Ｔ
ｉ、Ｎｂ量が（Ｔｉ／４）＋（Ｎｂ／８）＞Ｃの関係を
満足することを特徴とする耐食性および耐摩耗性のすぐ
れたＮｉ基合金、または上記合金に、重量％でＦｅを１
０％以下含有せしめたことを特徴とする耐食性および耐
摩耗性のすぐれたＮｉ基合金である。Mo: 9-16%, Al: 1.5% or less, Ti:
7.5% or less, Nb: 2 to 14% of one or two types, the remainder: Ni and unavoidable impurities, and C, T
i, a Ni-based alloy with excellent corrosion resistance and wear resistance, characterized in that the amount of Nb satisfies the relationship (Ti/4)+(Nb/8)>C, or the above alloy, with Fe added in weight%. 1
It is a Ni-based alloy with excellent corrosion resistance and wear resistance, characterized by containing 0% or less of Ni.
以下に本発明Ｎｉ基合金の成分組成の限定理由を説明す
る。The reasons for limiting the composition of the Ni-based alloy of the present invention will be explained below.
Ｃ：ＣにはＴｉ、ＮｂとＭＣ型炭化物を形成し、耐摩耗
性を向上させる作用があるが、その含有量が０．４％未
満では、十分な効果が得られず、また、１．５％を越え
て含有させると粗大な炭化物を形成し熱間加工性を害す
ることから、その含有量を０．４〜１．５％とした。C: C forms MC type carbides with Ti and Nb and has the effect of improving wear resistance, but if its content is less than 0.4%, sufficient effects cannot be obtained; If the content exceeds 5%, coarse carbides are formed and hot workability is impaired, so the content is set to 0.4 to 1.5%.
Ｃｒ：Ｃｒは特に酸化性の環境での不動態化能が高く、
耐食性を向上させるのに不可欠の元素であるが、その含
有量が１０％未満では、十分な効果が得られず、また１
６％を越えて含有させるとオーステナイト組織が不安定
となることから、その含有量を１０〜１６％とした。Cr: Cr has particularly high passivation ability in oxidizing environments;
It is an essential element for improving corrosion resistance, but if its content is less than 10%, sufficient effects cannot be obtained;
If the content exceeds 6%, the austenite structure becomes unstable, so the content was set to 10 to 16%.
Ｍｏ：Ｍｏは非酸化性の酸に対する耐食性や耐孔食性の
改善に有効な元素であるが、その含有量が９％未満では
十分な効果が得られず、また１６％を越えて含有させる
とオーステナイト組織が不安定となることから、その含
有量を９〜１６％とした。Mo: Mo is an element effective in improving corrosion resistance against non-oxidizing acids and pitting corrosion resistance, but if its content is less than 9%, sufficient effects cannot be obtained, and if it is contained in excess of 16%, Since the austenite structure becomes unstable, its content was set at 9 to 16%.
Ａｌ：Ａｌには、Ｎｉ、Ｔｉ、Ｎｂとともに時効により
オーステナイト基地に整合する微細析出物を形成し強度
を向上させる作用があり、若干量の含有が必要であるが
、１．５％を越えて含有させると熱間加工性が劣化する
ことから、その含有量を１．５％以下とした。Al: Al, along with Ni, Ti, and Nb, has the effect of forming fine precipitates that match the austenite matrix through aging and improving strength, and therefore it is necessary to contain a small amount, but if it exceeds 1.5% Since hot workability deteriorates if it is contained, its content is set to 1.5% or less.
Ｔｉ：ＴｉにはＮｉ、Ａｌ、Ｎｂとともに時効によリオ
ーステナイト基地に整合する微細析出物を形成し強度を
向上させる作用があるだけでなく、ＣとともにＭＣ型炭
化物を形成し、耐摩耗性を向上させる作用があるが、７
．５％を越えて含有させると熱間加工性が劣化するだけ
でなく、耐食性が劣化することから、その含有量を７．
５％以下とした。Ti: Along with Ni, Al, and Nb, Ti not only has the effect of forming fine precipitates that match the reaustenite matrix through aging and improving strength, but also forms MC type carbides with C, improving wear resistance. Although it has the effect of improving
．． If the content exceeds 5%, not only will hot workability deteriorate, but also corrosion resistance will deteriorate, so the content should be reduced to 7.
It was set to 5% or less.
Ｎｂ：ＮｂにはＮｉ、Ａｌ、Ｔｉとともに時効によリオ
ーステナイト基地に整合する微細析出物を形成し強度を
向上させる作用があるだけでなく、ＣとともにＭＣ型炭
化物を形成し、耐摩耗性を向上させる作用があるが、そ
の含有量が２％未満では、十分な効果が得られず、また
１４％を越えて含有させると熱間加工性が劣化すること
から、その含有量を２〜１４％とした。Nb: Along with Ni, Al, and Ti, Nb not only forms fine precipitates that match the riostenite matrix through aging and improves strength, but also forms MC-type carbides with C, improving wear resistance. However, if the content is less than 2%, a sufficient effect cannot be obtained, and if the content exceeds 14%, the hot workability deteriorates. %.
Ｆｃ：Ｆｅには熱間加工性を向上させる作用があるが、
１０％を越えて含有させると強度、耐食性が劣化するこ
とから、その含有量を１０％以下とした。Fc:Fe has the effect of improving hot workability, but
If the content exceeds 10%, the strength and corrosion resistance deteriorate, so the content was set to 10% or less.
不可避的不純物：不可避的不純物として通常、Ｓｉ、Ｍ
ｎ、Ｐ、Ｓ等を含有するが、上記特性を害さないように
するにはその含有量をそれぞれＳｉ：１％以下、Ｍｎ：
１％以下、Ｐ ： ０．０５％以下、 Ｓ：０．０５％
以下とすることが望ましい。Unavoidable impurities: Unavoidable impurities usually include Si, M
Contains n, P, S, etc., but in order not to impair the above properties, the content should be set to Si: 1% or less, Mn:
1% or less, P: 0.05% or less, S: 0.05%
The following is desirable.
Ｃ，Ｔｉ、Ｎｂ量の間の関係：
Ｔｉ、ＮｂはＣとともにＭＣ型炭化物を形成するだけで
なく、炭化物を形成したのちもオーステナイト基地中に
残留している余剰のＴｉ、Ｎｂは時効処理によりＡ Ｉ
ＨＮ ｉとともにオーステナイト基地に整合する微細
析出物を形成しかたさを向上させる作用があるが、（Ｔ
ｉ／４） ＋ （Ｎ ｂ／８）≦ＣではＴｉ。Relationship between the amounts of C, Ti, and Nb: Ti and Nb not only form MC type carbides together with C, but also excess Ti and Nb that remain in the austenite matrix after forming carbides are removed by aging treatment. AI
Together with HNi, it has the effect of improving the formation of fine precipitates that match the austenite matrix, but (T
i/4) + (N b/8)≦C, Ti.
ＮｂはＭＣ型炭化物を形成したのち、基地中にＴｉ。After Nb forms MC type carbide, Ti is added to the base.
Ｎｂがほとんど残留しないため１時効処理によりかたさ
を向上させることができず、耐摩耗性も劣化する。この
ため（Ｔｉ／４）＋（Ｎｂ／８）＞Ｃとした。Since almost no Nb remains, the hardness cannot be improved by one aging treatment, and the wear resistance also deteriorates. Therefore, (Ti/4)+(Nb/8)>C.
以下、本発明を実施例により説明する。 The present invention will be explained below using examples.
第１表に示す組成の本発明合金１〜１２および比較合金
１３．１４を真空誘導溶解炉にて溶解し。Invention alloys 1 to 12 and comparative alloys 13 and 14 having the compositions shown in Table 1 were melted in a vacuum induction melting furnace.
鋳造した。ここで比較合金１３．１４は（Ｔｉ／４）＋
（Ｎｂ／８）＞Ｃを満足しない組成の合金である。Cast. Here, comparative alloy 13.14 is (Ti/4)+
This is an alloy with a composition that does not satisfy (Nb/8)>C.
鋳造後１１７０℃で２０時間加熱保持し、均質化させた
後、約１１５０℃で熱間加工し、３０ｍｍ角の棒材に仕
上げた。さらにｔｏｓｏ℃に１時間加熱保持後油冷の固
溶化処理の後、７２０℃に８時間保持後６２０℃まで炉
冷し、引き続いて６２０℃で８時間保持後空冷の時効処
理を行なった。After casting, it was heated and held at 1,170°C for 20 hours to homogenize it, and then hot worked at about 1,150°C to finish it into a 30 mm square bar. Further, after solid solution treatment by heating and holding at toso°C for 1 hour and cooling with oil, it was held at 720°C for 8 hours and then furnace-cooled to 620°C, and subsequently, aging treatment was performed by holding at 620°C for 8 hours and cooling in air.
また従来合金１５は、フッ酸耐食性の非常にすぐれたＮ
ｉ−Ｃｒ−Ｍｏ系合金であり、耐摩耗性が要求される場
合には、冷間加工によりかたさを上げて使用されるもの
である。本合金も本発明合金と同じく、真空誘導溶解に
て溶解、鋳造後、１１５０℃で熱間加工し中間焼鈍を行
ない、さらに約３０％の加工率で冷間引抜を行ない１５
ｍｍφの棒材に仕上げた。In addition, conventional alloy 15 is N, which has excellent hydrofluoric acid corrosion resistance.
It is an i-Cr-Mo alloy, and when wear resistance is required, it is used after increasing its hardness by cold working. Like the alloy of the present invention, this alloy is melted and cast by vacuum induction melting, then hot worked at 1150°C, intermediate annealed, and then cold drawn at a processing rate of about 30%.
Finished into a bar of mmφ.
従来合金１６は、ある程度の耐食性も有する耐摩耗性の
良好なＪＩＳ ５ＫＤＩＩ相当の耐摩耗鋼であり、試
料は市販の鋼材より採取し、１０３０℃に加熱保持後油
冷し、さらに５２５℃に１時間加熱保持後空冷の焼もど
し処理を２回行なった。Conventional Alloy 16 is a wear-resistant steel equivalent to JIS 5KDII with good wear resistance and a certain degree of corrosion resistance.The sample was taken from a commercially available steel material, heated and held at 1030°C, cooled in oil, and further heated to 525°C for 1 hour. Tempering treatment was carried out twice by heating and holding for a time and then cooling in air.
これらについて、かたさ、フッ酸耐食性および粉体耐摩
耗性を調べた。フッ酸耐食性は４０℃のｌＯ％ＨＦ水溶
液中に１０時間浸漬したのち、その腐食減量を測定する
ことにより評価した。また粉体耐摩耗性は、６随φの試
験片をＳｉＣを研磨粒子とする３２０番の研磨紙上を回
転数９８０ｒｐ＋ｓ、荷重５ｋｇｆ。These were examined for hardness, hydrofluoric acid corrosion resistance, and powder abrasion resistance. Hydrofluoric acid corrosion resistance was evaluated by measuring the corrosion weight loss after being immersed in a 10% HF aqueous solution at 40° C. for 10 hours. Powder abrasion resistance was determined by rotating a 6-diameter test piece on No. 320 abrasive paper with SiC abrasive particles at 980 rp+s and under a load of 5 kgf.
送り速度６０＋ｍ／分で１０００ｍｍ走行させた後の摩
耗減量を測定することにより評価した。これらの測定結
果を第２表に示す。Evaluation was made by measuring the wear loss after traveling 1000 mm at a feed rate of 60+m/min. The results of these measurements are shown in Table 2.
第２表
第２表の結果からも明らかなように、本発明合金は比較
合金に比べて、かたさ、耐摩耗性が良好であり、また本
発明合金は耐食性の非常に優れた従来合金１５に比べて
耐食性は若干低下するが。As is clear from the results in Table 2, the alloy of the present invention has better hardness and wear resistance than the comparative alloys, and the alloy of the present invention has better corrosion resistance than the conventional alloy 15. However, the corrosion resistance is slightly lower than that of the same.
大差なく、かたさが高く、粉体耐摩耗性が大幅にすぐれ
ており、ＭＣ型炭化物の分散により粉体耐摩耗性が、ま
た１時効析出によりかたさが大幅に向上したことがわか
る。また、かたさ、耐摩耗性の優れた従来合金１６に比
べて、本発明合金はかたさは劣るものの、耐食性および
粉体耐摩耗性が大幅にすぐれていることがわかる。この
ように本発明合金は、従来合金が合わせもたなかったす
ぐれた耐食性と耐摩耗性を合わせもった合金であること
がわかる。It can be seen that the hardness is high without much difference, and the powder abrasion resistance is significantly superior. It can be seen that the dispersion of MC type carbide greatly improves the powder abrasion resistance, and the 1-aging precipitation significantly improves the hardness. Furthermore, it can be seen that compared to conventional alloy 16, which has excellent hardness and wear resistance, although the alloy of the present invention is inferior in hardness, it has significantly better corrosion resistance and powder wear resistance. Thus, it can be seen that the alloy of the present invention has both excellent corrosion resistance and wear resistance, which conventional alloys did not have.
また第１図に（Ｔｉ／４）＋（Ｎｂ／８）−Ｃとかたさ
の関係を、第２図に（Ｔｉ／４）＋（Ｎｂ／８） Ｃ
と摩耗減量の関係を示す。第１図、第２図からもわかる
ように、Ｃ，Ｔｉ、Ｎｂ量の関係が（Ｔ ｉ／４） ＋
（Ｎ ｂ／８）〉Ｃを満足しないとかたさ、耐摩耗性
が劣化しており、（Ｔ ｉ／４） ＋ （Ｎ ｂ／８）
＞ Ｃを満足する必要があることかわかる。Also, Fig. 1 shows the relationship between (Ti/4) + (Nb/8) - C and hardness, and Fig. 2 shows the relationship between (Ti/4) + (Nb/8) C
The relationship between and wear loss is shown. As can be seen from Figures 1 and 2, the relationship between the amounts of C, Ti, and Nb is (T i/4) +
(N b/8)> If C is not satisfied, the hardness and wear resistance will deteriorate, and (T i/4) + (N b/8)
> I understand that it is necessary to satisfy C.
Ｃ発明の効果〕
以上説明したように本発明合金は、すぐれた耐食性と耐
摩耗性を合わせもった合金であり、種々の腐食・摩耗環
境で使用すれば、従来に比べて長期間の使用に耐えるこ
とができ、工業上顕著な効果を有するものである。C Effects of the invention] As explained above, the alloy of the present invention is an alloy that has both excellent corrosion resistance and wear resistance, and when used in various corrosion and wear environments, it can be used for a longer period of time than conventional ones. It is durable and has significant industrial effects.
第１図は（Ｔｉ／４）＋（Ｎｂ／８） Ｃとかたさの
関係、第２図は（Ｔｉ／４）＋（Ｎｂ／８）−Ｃと摩耗
減量の関係を示した図である。
３３１図
−０，５００，５１，０FIG. 1 shows the relationship between (Ti/4)+(Nb/8)C and hardness, and FIG. 2 shows the relationship between (Ti/4)+(Nb/8)-C and wear loss. Figure 331-0,500,51,0
Claims (1)
％、Ｍｏ：９〜１６％、Ａｌ：１．５％以下さらにＴｉ
：７．５％以下とＮｂ：２〜１４％の一種または二種、
残部：Ｎｉおよび不可避的不純物よりなり、かつ、Ｃ、
Ｔｉ、Ｎｂ量が（Ｔｉ／４）＋（Ｎｂ／８）＞Ｃの関係
を満足することを特徴とする耐食性および耐摩耗性のす
ぐれたＮｉ基合金。 ２ 重量％でＣ：０．４〜１．５％、Ｃｒ：１０〜１６
％、Ｍｏ：９〜１６％、Ａｌ：１．５％以下、Ｆｅ：１
０％以下さらにＴｉ：７．５％以下とＮｂ：２〜１４％
の一種または二種、残部：Ｎｉおよび不可避的不純物よ
りなり、かつ、Ｃ、Ｔｉ、Ｎｂ量が（Ｔｉ／４）＋（Ｎ
ｂ／８）＞Ｃの関係を満足することを特徴とする耐食性
および耐摩耗性のすぐれたＮｉ基合金。[Claims] 1% by weight: C: 0.4-1.5%, Cr: 10-16
%, Mo: 9 to 16%, Al: 1.5% or less, and Ti
: 7.5% or less and one or two of Nb: 2 to 14%,
The remainder: consists of Ni and unavoidable impurities, and C,
A Ni-based alloy with excellent corrosion resistance and wear resistance, characterized in that the amounts of Ti and Nb satisfy the relationship (Ti/4)+(Nb/8)>C. 2 C: 0.4-1.5%, Cr: 10-16 in weight%
%, Mo: 9 to 16%, Al: 1.5% or less, Fe: 1
0% or less, Ti: 7.5% or less, and Nb: 2 to 14%
one or two kinds, the balance: Ni and inevitable impurities, and the amount of C, Ti, and Nb is (Ti/4)
A Ni-based alloy with excellent corrosion resistance and wear resistance, characterized by satisfying the relationship b/8)>C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP173688A JPH01177330A (en) | 1988-01-07 | 1988-01-07 | Ni-based alloy having excellent corrosion resistance and wear resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP173688A JPH01177330A (en) | 1988-01-07 | 1988-01-07 | Ni-based alloy having excellent corrosion resistance and wear resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01177330A true JPH01177330A (en) | 1989-07-13 |
Family
ID=11509851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP173688A Pending JPH01177330A (en) | 1988-01-07 | 1988-01-07 | Ni-based alloy having excellent corrosion resistance and wear resistance |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01177330A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11939646B2 (en) | 2018-10-26 | 2024-03-26 | Oerlikon Metco (Us) Inc. | Corrosion and wear resistant nickel based alloys |
-
1988
- 1988-01-07 JP JP173688A patent/JPH01177330A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11939646B2 (en) | 2018-10-26 | 2024-03-26 | Oerlikon Metco (Us) Inc. | Corrosion and wear resistant nickel based alloys |
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