CN101709410A - Nickel-based alloy and preparation method thereof - Google Patents
Nickel-based alloy and preparation method thereof Download PDFInfo
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- CN101709410A CN101709410A CN200910242631A CN200910242631A CN101709410A CN 101709410 A CN101709410 A CN 101709410A CN 200910242631 A CN200910242631 A CN 200910242631A CN 200910242631 A CN200910242631 A CN 200910242631A CN 101709410 A CN101709410 A CN 101709410A
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- 239000000956 alloy Substances 0.000 title claims abstract description 52
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 51
- 229910052759 nickel Inorganic materials 0.000 title claims abstract description 19
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title abstract description 29
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 15
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 15
- 229910052742 iron Inorganic materials 0.000 claims abstract description 13
- 229910052802 copper Inorganic materials 0.000 claims abstract description 12
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 11
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 9
- 238000001816 cooling Methods 0.000 claims abstract description 9
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 9
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 9
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 9
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 6
- 239000002184 metal Substances 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims abstract description 6
- 229910052748 manganese Inorganic materials 0.000 claims description 12
- 238000002844 melting Methods 0.000 claims description 12
- 230000008018 melting Effects 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 abstract description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 13
- 239000011651 chromium Substances 0.000 abstract description 13
- 239000010949 copper Substances 0.000 abstract description 10
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 abstract description 4
- 239000011733 molybdenum Substances 0.000 abstract description 4
- 230000003628 erosive effect Effects 0.000 abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract 2
- 238000003723 Smelting Methods 0.000 abstract 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- 239000011574 phosphorus Substances 0.000 abstract 2
- 239000010703 silicon Substances 0.000 abstract 2
- 239000011593 sulfur Substances 0.000 abstract 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- 239000010941 cobalt Substances 0.000 abstract 1
- 229910017052 cobalt Inorganic materials 0.000 abstract 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 abstract 1
- 230000005389 magnetism Effects 0.000 abstract 1
- 239000010955 niobium Substances 0.000 abstract 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 abstract 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract 1
- 239000010937 tungsten Substances 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 description 29
- 230000007797 corrosion Effects 0.000 description 29
- 239000011572 manganese Substances 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000005242 forging Methods 0.000 description 7
- 239000011859 microparticle Substances 0.000 description 7
- 239000012467 final product Substances 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 239000000155 melt Substances 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000005275 alloying Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000007731 hot pressing Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 241000370738 Chlorion Species 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000002050 diffraction method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000000693 micelle Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- -1 nickelio Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001846 repelling effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Abstract
The invention discloses a nickel-based alloy and a preparation method thereof, and belongs to the technical field of material engineering. The preparation method comprises the following steps: smelting less than or equal to 0.02 percent of carbon, less than or equal to 1.0 percent of silicon, less than or equal to 1.0 percent of manganese, less than or equal to 0.04 percent of phosphorus, less than or equal to 0.03 percent of sulfur, 21.0 to 23.5 percent of chromium, 6.0 to 8.0 percent of molybdenum, 48 to 55 percent of nickel and the like in percentage by weight in a vacuum smelting furnace at the temperature of between 1,100 and 1,250 DEG C; and pouring the smelted mixture into a quick-cooling metal die, controlling the cooling rate at 102 to 105 k/s, and cooling the smelted mixture to the room temperature. The obtained nickel-based alloy comprises the following components in percentage by weight: 0.012 percent of carbon, 0.25 percent of silicon, 0.28 percent of manganese, 0.011 percent of phosphorus, 0.002 percent of sulfur, 21.0 to 23.5 percent of chromium, 6.0 to 8.0 percent of molybdenum, less than or equal to 5.0 percent of cobalt, 18 to 21 percent of iron, 1.5 to 2.5 percent of copper, less than or equal to 0.5 percent of niobium, less than or equal to 1.5 percent of tungsten and 48 to 55 percent of nickel. The nickel-based alloy has no magnetism, and has strong cavitation erosion resistance and low noise in the cavitation process.
Description
Technical field
A kind of nickel-base alloy and preparation method thereof relates in particular to a kind of preparation method of the nickel-base alloy of anti-the cavitation corrosion, belongs to field of material engineering technology.
Background technology
Cavitation corrosion is on the water conservancy machinery flow passage components, common phenomena the most on the middle and high fast bearing of Hydraulic and Hydro-Power Engineering and the ship propeller, also be a kind of hydraulic phenomenon of very disruptive simultaneously, can cause pit, pit, cause water conservancy machinery and hydraulic structure such as secondary phenomenons such as noise, vibrations, be to cause the major cause that building is damaged in flow passage components and the water, the safety of serious threat engineering is carried out, and causes great financial loss.Along with fluid machineries such as naval vessel, water turbine constantly develop to high speed, high-power direction, it is more outstanding that the cavitation corrosion problem becomes, and the anti-cavitation corrosion of material has been proposed requirements at the higher level.
Blade material at present commonly used mainly concentrates on three aspects such as carbon steel, xantal and stainless steel, and actual use result shows that the anti-cavitation corrosion performance of these three kinds of materials all is not very good.The xantal material used of ship propeller particularly, its anti-cavitation corrosion performance is not fine, and it is bigger by noise that cavitation corrosion caused, is unfavorable in the water hidden.In addition, also have the blade material that some process for treating surface (as ion implantation) are applied to use always, experimental result shows that the anti-cavitation corrosion performance through the blade material after the surface treatment still is not very desirable.The designed alloy of anti-cavitation corrosion of this patent belongs to high nickel-base alloy.Because nickel wood is as face-centred cubic structure, the stable neutrality on the crystallography makes it to hold the more alloy Suo Ge of unit than ferrous alloy, and molybdenum etc. are to reach the all-environment ability of opposing.Add that the surface of nickel own is easy to form one deck passive film, make it have certain resistance to corrosion, especially resist stress corrosion ability that chlorion causes and be all stainless steels can not compare.The gap of this erosion resistance the environment of reductibility, complicated mixing acid environment and contain in the halogen rope ion solution especially obvious, so nickel-base alloy be usually used in the chemical industry equipment, in the particularly very harsh corrosive environment.
Traditional cavitation corrosion viewpoint thinks that it mainly is because the out-phase media such as air, steam micelle and solid particulate that exist in the real fluid can reduce the fluidic strength at break that the cavitation corrosion process takes place, thereby make swiftly flowing liquid be easy to generate cavitation, form cavity because of local pressure descends.After these cavitys enter people's fluidic high pressure area, be compressed and crumble and fall, just produce microjet or the shockwave that a kind of frequency is very high, pressure is very big and hit the surface of workpiece, and then produce so-called cavitation erosion.Different with traditional view, we have proposed some new views to the mechanism that cavitation corrosion takes place, cavitation corrosion will take place at first will have in the medium microparticle to exist, the cavitation corrosion phenomenon is the most serious when the size of microparticle reaches 1 micron left and right sides, excessive or the too small generation that all can not cause cavitation corrosion of particle size is even there is the existence of breaking of cavity or cavity.Independent cavity exists or breaks and can not cause the generation of cavitation corrosion in our the artificial medium, because independent cavity is that low pressure can not cause breaking of cavity to the low direction migration of pressure in medium.When having the microparticle of certain size in the medium; microparticle meeting and cavity integrator move along the flow velocity direction; cavity and particulate molectron will form whirlpool after the projection that runs into material surface; molectron can obtain the speed of a normal direction of material surface simultaneously; this speed is roughly 30 meter per seconds; when the molectron convergence is in material surface 100 nanometers; molectron and material surface form high-voltage field; this high-voltage field impels cavity collapse; break and cause the high speed microjet to carry the microparticle impact material surface secretly; this impact velocity can reach 3000 meter per seconds, thereby causes the generation of cavitation corrosion.And microparticle generally has electronegativity, the material electropotential is that just a large amount of negative charges can be adsorbed in its surface, the principle of repelling each other according to same sex electric charge, its speed will reduce greatly even oppositely move when microparticle arrives material surface, so just can alleviate the generation of material surface cavitation corrosion effectively.Designed its surface of high nickel-base alloy of this patent can spontaneously form the very fine and close passive film of one deck, this layer passive film can make the electropotential of matrix reach on the occasion of, so just meet anti-cavitation corrosion performance requriements.
Summary of the invention
The object of the invention is to provide the especially nickel-bass alloy material and preparation method thereof of the excellent performance of anti-cavitation corrosion of a kind of nickel-base alloy.
For achieving the above object, the preparation method that the present invention adopts is: weight percent is≤0.02% C ,≤1.0% Si, ≤ 1.0% Mn, ≤ 0.04% P ,≤0.03% S, 21.0～23.5% Cr, 6.0～8.0% Mo, ≤ 5.0% Co, 18～21% Fe, 1.5～2.5% Cu, ≤ 0.5% Nb, in≤1.5% W and 48～55% the Ni vacuum melting furnace 1100～1250 ℃ of following meltings; Treat after each element fusing alloy liquid to be poured in the fast cold mould of metal, and the speed of cooling of alloy liquid is controlled at 102k/s～105k/s, be cooled to room temperature and get final product.
The alloy of anti-cavitation corrosion that makes according to preparation method of the present invention contains weight percent and is: 0.012% C, 0.28% Si, 0.28% Mn, 0.011% P, 0.002% S, 21.0～23.5% Cr, 6.0～8.0% Mo ,≤5.0% Co, 18～21% Fe, 1.5～2.5% Cu ,≤0.5% Nb ,≤1.5% W and 48～55% Ni.
The present invention compared with prior art, have following high-lighting effect: the gained alloy substrate self has higher electropotential, need not adopt process for treating surface to handle; The gained alloy does not have magnetic; The gained alloy has higher intensity and toughness index, and the ability of opposing high temperature deformation that particularly changes alloy is very strong.
Embodiment
The invention provides a kind of preparation method of the alloy of anti-the cavitation corrosion, its preparation method is as follows: purity is respectively 99.99% Ni, Cr, Co, Fe, Mn, Cu, Mo and elements such as w and carries out melting for 1100～1250 ℃ according to designed prescription in vacuum melting furnace, liquation adopts quick refrigerative way to solidify, speed of cooling is controlled at 102k/s～105k/s, is cooled to room temperature and gets final product.
Cast alloy is incubated 20～25 hours under 1100 ℃～1250 ℃ in heat treatment furnace, then material is carried out hot pressing, and hot pressing pressure is 5 tons, forging is warmed up to 1100 ℃ subsequently, is incubated 10 hours, then quenching-in water.
Alloy substrate of the present invention is a nickel, adds alloying elements such as iron, chromium, molybdenum and manganese.The novel alloy of preparation is owing to belong to nickel-base alloy, and the spontaneous formation one deck of its surface meeting is the passive film of densification very, and this layer passive film can significantly improve the surface electrical negativity of matrix alloy, improved its surface electrode current potential, thereby improved the ability of its anti-cavitation corrosion.
Several specific embodiments are provided below, and the present invention is further illustrated.
Embodiment 1:
At first with weight percent be: 49% Ni, 6.8% Mo, 18.8% Fe, 0.58% Mn, 22.7% Cr, 0.6% W and 1.6% Cu equal in the vacuum melting furnace 1230 ℃ of following meltings; Treat then after each element fully melts alloy liquid to be poured in the fast cold mould of metal, and the speed of cooling of alloy liquid is controlled at 102k/s is cooled to room temperature and gets final product, the nickel-base alloy that makes according to the present embodiment preparation method contains weight percent and is: 48.5% Ni, 6.8% Mo, 18.8% Fe, 0.58% Mn, 22.5% Cr, 0.012% C, 0.86% Si, 0.011% P, 0.002% S, 0.05% Nb, 0.6% W and 1.55% Cu.Cast alloy is incubated 25 hours under 1200 ℃ in heat treatment furnace, then material is carried out forge hot, and forging and pressing pressure is 5 tons, forging is warmed up to 1100 ℃ subsequently, is incubated quenching-in water after 10 hours.
Embodiment 2:
At first with weight percent be: 49.4% Ni, 6.5% Mo, 19% Fe, 0.6% Mn, 22% Cr, 0.7% W and 1.8% Cu equal in the vacuum melting furnace 1210 ℃ of following meltings; Treat then after each element fully melts alloy liquid to be poured in the fast cold mould of metal, and the speed of cooling of alloy liquid is controlled at 102k/s is cooled to room temperature and gets final product, the nickel-base alloy that makes according to the present embodiment preparation method contains weight percent and is: 49.2% Ni, 6.5% Mo, 19% Fe, 0.6% Mn, 22% Cr, 0.01% C, 0.22% Si, 0.009% P, 0.003% S, 0.02% Nb, 0.668% W and 1.75% Cu.Cast alloy is incubated 20～25 hours under 1200 ℃ in heat treatment furnace, then material is carried out forge hot, and forging and pressing pressure is 5 tons, forging is warmed up to 1100 ℃ subsequently, is incubated quenching-in water after 10 hours.
Embodiment 3:
At first with weight percent be: 50.2% Ni, 7% Mo, 19% Fe, 0.7% Mn, 21.5% Cr, 0.01% W and 1.96% Cu equal in the vacuum melting furnace 1250 ℃ of following meltings; Treat then after each element fully melts alloy liquid to be poured in the fast cold mould of metal, and the speed of cooling of alloy liquid is controlled at 102k/s is cooled to room temperature and gets final product, the nickel-base alloy that makes according to the present embodiment preparation method contains weight percent and is: 50% Ni, 7% Mo, 19% Fe, 0.7% Mn, 21% Cr, 0.02% C, 0.30% Si, 0.008% P, 0.002% S, 0.01% Nb, 0.01% W and 1.95% Cu.Cast alloy is incubated 20～25 hours under 1200 ℃ in heat treatment furnace, then material is carried out forge hot, and forging and pressing pressure is 5 tons, forging is warmed up to 1100 ℃ subsequently, is incubated quenching-in water after 10 hours.
Because alloying elements such as heavy addition nickel of the present invention and chromium make alloy belong to the scope of high nickelio alloy, reached 870MPa through tensile strength of alloys after the heat treatment process, yield strength has reached 820MPa, and unit elongation has reached 20.6%.Cavitation corrosion in the actual environment for use and noise experiment result show that the cavitation corrosion phenomenon and the noise of the alloy of anti-cavitation corrosion the of the present invention reduce greatly.Show that this alloy can be used as a kind of alloy of anti-the cavitation corrosion and promoted.
Claims (2)
1. a nickel-base alloy is characterized in that, this alloy contains weight percent and is: 0.012% C, 0.28% Si, 0.28% Mn, 0.011% P, 0.002% S, 21.0～23.5% Cr, 6.0～8.0% Mo ,≤5.0% Co, 18～21% Fe, 1.5～2.5% Cu ,≤0.5% Nb ,≤1.5% W and 48～55% Ni.
2. the preparation method of a nickel-base alloy is characterized in that, this method steps is as follows:
1) with weight percent is :≤0.02% C, ≤ 1.0% Si ,≤1.0% Mn ,≤0.04% P, ≤ 0.03% S, 21.0～23.5% Cr, 6.0～8.0% Mo ,≤5.0% Co, 18～21% Fe, 1.5～2.5% Cu ,≤0.5% Nb, in≤1.5% W and 48～55% the Ni vacuum melting furnace 1100～1250 ℃ of following meltings;
2) treat after each element fusing alloy liquid to be poured in the fast cold mould of metal, and the speed of cooling of alloy liquid is controlled at 102k/s～105k/s, be cooled to room temperature, promptly obtain described nickel-base alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910242631A CN101709410A (en) | 2009-12-11 | 2009-12-11 | Nickel-based alloy and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910242631A CN101709410A (en) | 2009-12-11 | 2009-12-11 | Nickel-based alloy and preparation method thereof |
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| CN101709410A true CN101709410A (en) | 2010-05-19 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104789816A (en) * | 2015-04-10 | 2015-07-22 | 太原钢铁(集团)有限公司 | Ni-based corrosion resistant alloy for high-acidity oil-gas field and manufacturing method of oil casing of Ni-based corrosion resistant alloy for high-acidity oil-gas field |
| CN113461478A (en) * | 2020-03-30 | 2021-10-01 | 中国石油化工股份有限公司 | Reactor for oxidative coupling of methane and application thereof |
| CN115255307A (en) * | 2022-07-18 | 2022-11-01 | 山西太钢不锈钢股份有限公司 | Method for reducing friction force of crystallizer in iron-nickel-based alloy continuous casting starting stage |
-
2009
- 2009-12-11 CN CN200910242631A patent/CN101709410A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104789816A (en) * | 2015-04-10 | 2015-07-22 | 太原钢铁(集团)有限公司 | Ni-based corrosion resistant alloy for high-acidity oil-gas field and manufacturing method of oil casing of Ni-based corrosion resistant alloy for high-acidity oil-gas field |
| CN104789816B (en) * | 2015-04-10 | 2017-03-08 | 太原钢铁(集团)有限公司 | A kind of peracidity oil gas field abros and its manufacture method of tubing and casing |
| CN113461478A (en) * | 2020-03-30 | 2021-10-01 | 中国石油化工股份有限公司 | Reactor for oxidative coupling of methane and application thereof |
| CN115255307A (en) * | 2022-07-18 | 2022-11-01 | 山西太钢不锈钢股份有限公司 | Method for reducing friction force of crystallizer in iron-nickel-based alloy continuous casting starting stage |
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Open date: 20100519 |