JPS6314835A - Ni-base alloy excellent in resistance to high temperature corrosion - Google Patents
Ni-base alloy excellent in resistance to high temperature corrosionInfo
- Publication number
- JPS6314835A JPS6314835A JP15881286A JP15881286A JPS6314835A JP S6314835 A JPS6314835 A JP S6314835A JP 15881286 A JP15881286 A JP 15881286A JP 15881286 A JP15881286 A JP 15881286A JP S6314835 A JPS6314835 A JP S6314835A
- Authority
- JP
- Japan
- Prior art keywords
- resistance
- base alloy
- temperature corrosion
- alloy excellent
- high temperature
- 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 19
- 239000000956 alloy Substances 0.000 title claims abstract description 19
- 230000007797 corrosion Effects 0.000 title claims abstract description 18
- 238000005260 corrosion Methods 0.000 title claims abstract description 18
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 4
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 4
- 229910052804 chromium Inorganic materials 0.000 claims abstract 3
- 229910052710 silicon Inorganic materials 0.000 claims abstract 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 13
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 2
- 239000011733 molybdenum Substances 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 239000010955 niobium Substances 0.000 claims description 2
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims 1
- 239000011651 chromium Substances 0.000 claims 1
- 239000010703 silicon Substances 0.000 claims 1
- 230000003647 oxidation Effects 0.000 abstract description 13
- 238000007254 oxidation reaction Methods 0.000 abstract description 13
- 230000000694 effects Effects 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000003466 welding Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 2
- 229910000619 316 stainless steel Inorganic materials 0.000 description 1
- 229910001347 Stellite Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 229910001080 W alloy Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- AHICWQREWHDHHF-UHFFFAOYSA-N chromium;cobalt;iron;manganese;methane;molybdenum;nickel;silicon;tungsten Chemical compound C.[Si].[Cr].[Mn].[Fe].[Co].[Ni].[Mo].[W] AHICWQREWHDHHF-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Heat Treatment Of Nonferrous Metals Or Alloys (AREA)
Abstract
Description
【発明の詳細な説明】
［発明の目的］
（産業上の利用分野）
本発明は、高温の腐食および酸化雰囲気で使用されるバ
ルブやバルブシートなどに好適な耐高温腐食性、耐酸化
性に優れたＮｉ基合金に関する。[Detailed description of the invention] [Object of the invention] (Industrial application field) The present invention provides high-temperature corrosion resistance and oxidation resistance suitable for valves and valve seats used in high-temperature corrosive and oxidizing atmospheres. This invention relates to an excellent Ni-based alloy.
（従来の技術）
ディーゼルまたはガソリンエンジン用バルブ部材の弁棒
フェース面、弁座シート面などには、従来、耐高温腐食
性と耐摩耗性を向上させるためＣｏ基体のＣｏ −Ｃｒ
−Ｗ系合金（通称ステライト）を肉盛溶接を施して使用
しているが最近エンジン燃料の省エネ化に伴なって燃料
効率の向上がはかられバルブの使用温度が上昇している
。その結果長時間使用中に経時変化か起こり硬さの低下
による摩耗量の増加ならびに燃料油中に含まれるイオウ
（Ｓ）に起因する高温硫化腐食と低質油中に含まれるバ
ナジウム（Ｖ）に起因するバナジウムアタックなどの耐
高温腐食性が低下しディーゼルまたはガソリンエンジン
などのバルブシートとしての機能低下が生じている。(Prior Art) Conventionally, the valve stem face surface, valve seat seat surface, etc. of valve members for diesel or gasoline engines have been coated with Co-based Co-Cr to improve high-temperature corrosion resistance and wear resistance.
-W alloy (commonly known as stellite) is used by overlay welding, but recently, with the energy saving of engine fuel, fuel efficiency has been improved and the operating temperature of the valve has increased. As a result, aging occurs during long-term use, resulting in increased wear due to decreased hardness, high temperature sulfide corrosion caused by sulfur (S) contained in fuel oil, and vanadium (V) contained in low quality oil. The resistance to high-temperature corrosion such as vanadium attack has deteriorated, resulting in a decline in its function as a valve seat in diesel or gasoline engines.
（発明が解決しようとする問題点）
本発明は、上述のような観点から内燃機関、特に高性能
エンジンバルブやバルブシートなどに要求される高温に
おける耐高温腐食性、耐酸化性を十分に有しかつ耐摩耗
性を具備したＮｉ基合金を提供しようとするものである
。(Problems to be Solved by the Invention) From the above-mentioned viewpoints, the present invention provides an internal combustion engine with sufficient high-temperature corrosion resistance and oxidation resistance at high temperatures required for internal combustion engines, particularly high-performance engine valves and valve seats. The present invention aims to provide a Ni-based alloy that also has wear resistance.
［発明の構成］
（問題点を解決するだめの手段）
本発明のＮｉ基合金は、重量比でＣｒ１Ｏ〜４５％、Ｎ
ｂ３〜１５％、Ｍｏ２０％以下、残部が実質的にＮｉか
らなり、また前記組成を有するＮｉ基合金の耐酸化性を
更に向上させるためＳ＋５％以下含むことを特徴とする
。[Structure of the Invention] (Means for Solving the Problems) The Ni-based alloy of the present invention contains Cr1O to 45% by weight, N
It is characterized by comprising 3 to 15% b, 20% or less Mo, and the remainder substantially Ni, and contains S+5% or less in order to further improve the oxidation resistance of the Ni-based alloy having the above composition.
（作用） 以下前記成分の限定理由について説明する。(effect) The reasons for limiting the components will be explained below.
まずＣｒは耐食性、耐酸化性、耐高温腐食性および合金
の素地を強化するために必要な成分でその組成比が１０
％未満では効果が不十分であり、また４５％を越えると
粗大な初晶の相が過度に析出し所要の耐摩耗性、耐高温
腐食性、耐酸化性が得られない。好ましくは２０〜３０
％である。ニオブはニッケルと反応して合金の素地の強
化と耐摩耗性の向上に寄与する成分であるがその量が３
２６未満では効果が不十分で、また１５％を越えると靭
性の低下がみられ材料の機械的強度が損なわれるからで
ある。好ましくは９〜１２％である。First of all, Cr is a necessary component to strengthen corrosion resistance, oxidation resistance, high temperature corrosion resistance, and the alloy matrix, and its composition ratio is 10.
If it is less than 45%, the effect is insufficient, and if it exceeds 45%, coarse primary crystal phases will precipitate excessively, making it impossible to obtain the required wear resistance, high-temperature corrosion resistance, and oxidation resistance. Preferably 20-30
%. Niobium is a component that reacts with nickel and contributes to strengthening the alloy base and improving wear resistance, but the amount is 3
If it is less than 26, the effect will be insufficient, and if it exceeds 15%, the toughness will decrease and the mechanical strength of the material will be impaired. Preferably it is 9 to 12%.
モリブデンは耐食性の向上と合金素地を強化し耐摩耗性
の向上に寄与するものであるが２０％を越えると合金の
靭性の低下が見られるからである。This is because molybdenum contributes to improving corrosion resistance, strengthening the alloy matrix, and improving wear resistance, but if it exceeds 20%, the toughness of the alloy decreases.
好ましくは１０〜１５９６である。Preferably it is 10-1596.
ンリコンは特に高温域における耐酸化性の向上に寄与す
る成分であるがその口が５％を越えるとその効果が十分
でなく、合金の靭性の低下が見られるからである。好ま
しくは１〜３％である。さらに溶接性の向上に寄与する
鉄（８％以下）やアルミニウム（３％以下）などを含ん
でいても差支えない。This is because phosphoric acid is a component that contributes to improving oxidation resistance, especially in a high temperature range, but if its content exceeds 5%, its effect is not sufficient and the toughness of the alloy decreases. Preferably it is 1 to 3%. Further, it may contain iron (8% or less), aluminum (3% or less), etc., which contribute to improving weldability.
（実施例）
第１表に示した組成（重量％）の材料を用意し高周波真
空誘導溶解炉で溶解役名溶湯の中に内径４■、長さ５０
０ ｍｍの石英管の一端を浸漬し他端を ０．１気圧と
して溶湯を吸引し溶接棒を得た。(Example) Materials having the compositions (wt%) shown in Table 1 were prepared and melted in a high-frequency vacuum induction melting furnace into a molten metal with an inner diameter of 4 mm and a length of 50 mm.
One end of a 0 mm quartz tube was immersed, the other end was set to 0.1 atm, and the molten metal was sucked to obtain a welding rod.
ついでこれら溶接棒をＳＵＳ ３１６ステンレス鋼板の
上に肉盛溶接したのち、肉盛層より各試験片に加工した
。These welding rods were then overlay welded onto a SUS 316 stainless steel plate, and each test piece was processed from the overlay layer.
耐酸化性は、８００〜９００℃の温度範囲で５００時間
大気中酸化試験を行ない単位面積当りの酸化増ｍ’ （
Ｑ ／ ｃｊ ）にて評価した。耐高温腐食性は、Ｖ２
Ｏ５１５％Ｎａ２５Ｏａ溶融合成灰に浸漬し８００〜９
００℃の温度範囲で１時間高温腐食試験を行ない単位面
積当りの腐食減量（弓／ ｃｊ ）にて評価した。また
既存のＣｏ基合金およびＮ１基合金を比較材とし発明材
と同様に耐酸化性と耐高温腐食性を評価した。耐摩耗試
験は、アムスラー型試験機を用い荷重３０ｋｇ、摺動摩
耗距離１０００ｍ、潤滑剤水の条件で行ない試験片の摩
耗減量を測定した。Oxidation resistance was determined by conducting an oxidation test in the air for 500 hours at a temperature range of 800 to 900°C, and measuring the oxidation increase m' (
Q/cj). High temperature corrosion resistance is V2
O5 15% Na25Oa immersed in molten synthetic ash 800-9
A high-temperature corrosion test was conducted in the temperature range of 00°C for 1 hour, and the corrosion loss per unit area (bow/cj) was evaluated. In addition, existing Co-based alloys and N1-based alloys were used as comparative materials, and their oxidation resistance and high-temperature corrosion resistance were evaluated in the same manner as the invented materials. The wear resistance test was carried out using an Amsler type tester under the conditions of a load of 30 kg, a sliding wear distance of 1000 m, and lubricant water, and the wear loss of the test piece was measured.
以上の結果をまとめて第１表に併記した。The above results are summarized and listed in Table 1.
［発明の効果］
上述のように本発明のＮｉ基合金は、耐酸化性および耐
高温腐食性に優れることから高性能エンジンバルブやバ
ルブシートなどのバルブ用部材として用いた場合優れた
性能を発揮し工業上有用である。[Effects of the Invention] As mentioned above, the Ni-based alloy of the present invention has excellent oxidation resistance and high temperature corrosion resistance, so it exhibits excellent performance when used as valve members such as high-performance engine valves and valve seats. It is industrially useful.
Claims (1)
モリブデン２０％以下、残部がニッケルよりなる耐高温
腐食に優れた Ｎｉ基合金。 ２）前記Ｎｉ基合金においてシリコンが重量比で５％以
下の組成を有することを特徴とした特許請求の範囲第１
項記載の耐高温腐食に優れたＮｉ基合金。[Claims] 1) 10 to 45% chromium and 3 to 15% niobium by weight;
A Ni-based alloy with excellent high-temperature corrosion resistance, consisting of less than 20% molybdenum and the remainder nickel. 2) Claim 1, characterized in that the Ni-based alloy has a composition in which silicon has a composition of 5% or less by weight.
Ni-based alloy with excellent high-temperature corrosion resistance as described in Section 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15881286A JPS6314835A (en) | 1986-07-08 | 1986-07-08 | Ni-base alloy excellent in resistance to high temperature corrosion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15881286A JPS6314835A (en) | 1986-07-08 | 1986-07-08 | Ni-base alloy excellent in resistance to high temperature corrosion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6314835A true JPS6314835A (en) | 1988-01-22 |
Family
ID=15679900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15881286A Pending JPS6314835A (en) | 1986-07-08 | 1986-07-08 | Ni-base alloy excellent in resistance to high temperature corrosion |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6314835A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5368813A (en) * | 1993-05-24 | 1994-11-29 | Massachusetts Institute Of Technology, A Ma Corp. | Oxidation and sulfidation resistant chromium-niobium alloy |
| US8652199B2 (en) | 2005-05-23 | 2014-02-18 | Nec Tokin Corporation | Stent with autonomic function |
| US9205178B2 (en) | 2005-05-23 | 2015-12-08 | Nec Tokin Corporation | Ti-Ni-Nb alloy device |
-
1986
- 1986-07-08 JP JP15881286A patent/JPS6314835A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5368813A (en) * | 1993-05-24 | 1994-11-29 | Massachusetts Institute Of Technology, A Ma Corp. | Oxidation and sulfidation resistant chromium-niobium alloy |
| US8652199B2 (en) | 2005-05-23 | 2014-02-18 | Nec Tokin Corporation | Stent with autonomic function |
| US9205178B2 (en) | 2005-05-23 | 2015-12-08 | Nec Tokin Corporation | Ti-Ni-Nb alloy device |
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