CN103667892B - The ground net alloy material that a kind of acid resistance soil corrosion is wear-resisting - Google Patents
The ground net alloy material that a kind of acid resistance soil corrosion is wear-resisting Download PDFInfo
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- 238000005260 corrosion Methods 0.000 title claims abstract description 80
- 230000007797 corrosion Effects 0.000 title claims abstract description 78
- 239000000956 alloy Substances 0.000 title claims abstract description 46
- 239000002689 soil Substances 0.000 title claims abstract description 35
- 239000002253 acid Substances 0.000 title claims abstract description 26
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 15
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 14
- 239000000203 mixture Substances 0.000 claims abstract description 14
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 14
- 229910052709 silver Inorganic materials 0.000 claims abstract description 14
- 229910052718 tin Inorganic materials 0.000 claims abstract description 14
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 14
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 12
- 229910052742 iron Inorganic materials 0.000 claims abstract description 10
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 10
- 229910052741 iridium Inorganic materials 0.000 claims description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 17
- 229910052802 copper Inorganic materials 0.000 abstract description 17
- 239000010949 copper Substances 0.000 abstract description 17
- 229910045601 alloy Inorganic materials 0.000 abstract description 12
- 230000003628 erosive effect Effects 0.000 abstract description 8
- 239000004332 silver Substances 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 description 24
- 239000010959 steel Substances 0.000 description 24
- 239000011572 manganese Substances 0.000 description 12
- 229910052707 ruthenium Inorganic materials 0.000 description 10
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 9
- 239000004411 aluminium Substances 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 229910052703 rhodium Inorganic materials 0.000 description 6
- 239000010948 rhodium Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 5
- 239000005864 Sulphur Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 4
- 229910001335 Galvanized steel Inorganic materials 0.000 description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 239000008397 galvanized steel Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- NICDRCVJGXLKSF-UHFFFAOYSA-N nitric acid;trihydrochloride Chemical compound Cl.Cl.Cl.O[N+]([O-])=O NICDRCVJGXLKSF-UHFFFAOYSA-N 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 4
- 239000010937 tungsten Substances 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 3
- 229910001567 cementite Inorganic materials 0.000 description 3
- 238000005530 etching Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- JHWIEAWILPSRMU-UHFFFAOYSA-N 2-methyl-3-pyrimidin-4-ylpropanoic acid Chemical compound OC(=O)C(C)CC1=CC=NC=N1 JHWIEAWILPSRMU-UHFFFAOYSA-N 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000008485 antagonism Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- KSOKAHYVTMZFBJ-UHFFFAOYSA-N iron;methane Chemical compound C.[Fe].[Fe].[Fe] KSOKAHYVTMZFBJ-UHFFFAOYSA-N 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 229910021652 non-ferrous alloy Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 1
- 230000008261 resistance mechanism Effects 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- -1 therefore Chemical compound 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
A kind of ground net corrosion resistant alloy material of acid resistance soil corrosion of this real disclosure of the invention, its weight percent composition is: C:0.1 ~ 0.25%, P:0.06 ~ 0.08%, S:0.012 ~ 0.015%, Si:1.2 ~ 1.8%, Mn:0.1 ~ 0.18%, Ag:0.000001 ~ 0.00006%, W:0.03 ~ 0.09%, Sn:0.6 ~ 0.8%, V:0.2 ~ 0.5%, all the other are iron.Compared with the prior art, compared with the copper that ground net corrosion resistant alloy material and the fine copper of acid resistance soil corrosion of the present invention add per-cent, when not adding copper, by adding the trace silver of good conductivity, cost is than fine copper or to add the copper of per-cent lower, and wear resisting property is good, and conductivity more, acidproof corrosion resistance nature is better, and can not pollute soil, and alloy has better erosion resistance.
Description
Technical field
The invention belongs to electrical network wear resistant corrosion resistant technical field of metal, the ground net alloy material that particularly a kind of acid resistance soil corrosion is wear-resisting.
Background technology
In integrated ground system, usually adopt the metallic ground poles such as fine copper rod or copper sheathed steel.Adopt metallic ground pole, although the stake resistance of integrated ground system can be reduced, but owing to there is metallic corrosion problem, the representative value of erosion rate in soil of copper is 0.19mm/, the representative value of erosion rate in soil of aluminium is 0.55mm/, the plumbous representative value of erosion rate in soil is 0.42mm/, and the representative value of erosion rate in soil of steel is 0.66mm/, can affect the life-span of earthing pole.Above-mentioned rate of metal corrosion data are uniform corrosion, if there is spot corrosion, corrosion of metal rate is larger, and work-ing life can seriously reduce.
For many years, the power system accident that China is caused by problem with grounding happens occasionally, and the direct economic loss that each accident causes is greatly between hundreds thousand of unit to millions of unit, and the indirect economic loss that the power failure caused by power system accident brings is larger.In the earth work of China, galvanized steel is main earthing material always.A lot of area, because the corrodibility of soil is strong, steel ground net is occurred, and corrosion is even ruptured, and stake resistance raises, and when short trouble or thunderbolt, easily causes damage or the crisis personnel safety of electric installation.In the soil that corrodibility is stronger, the 1-2 of ground net just likely damages.Therefore in these areas, protection against corrosion has become the matter of utmost importance of ground mat construction.Employing galvanized steel comes with some shortcomings: one is corrode to prevent the accident caused, it is a kind of conventional method that galvanized steel enlarging section amasss, but it is serious to there is waste material, turn increases difficulty of construction, and in the fracture that deep-etching area cannot prevent local corrosion from causing; Two are, for the problem of galvanized steel corrosion-resistant, relevant specification requires that ground net needs regularly to excavate inspection, or regularly transformation, reconstruction, this both have impact on the normal operation of transmission transformer station, considerably increase again engineering to drop into, and a lot of ground net is built in below buildings, causes the great difficulty that earth mat excavates, transforms.
Generally adopt copper & brass or copper grounding device in the world, substantially there is no the etching problem of ground net.Reflect some problems in practical application: as copper product is expensive, be difficult to be widely used, only apply in some priority projects or special engineering; Due to costliness, often occur by pilferage accident, larger ground fault may be caused and occur; Exist soil and groundwater and pollute; Also have solidity to corrosion under sour environment poor.
Power system grounding device is generally made up of horizontal grounding pole, vertical grounding electrode and ground lead.Aluminium alloy is the one of earthing material, is usually used to as ground lead.Aluminium can generate the oxide film of one deck densification at natural environmental condition lower surface, and oxide film can stop anodic reaction, and aluminium is not corroded.In acid soil, the oxide film of aluminium is dissolved in soil, and uniform corrosion occurs.In neutral and alkali soil, the corrosion of aluminium occurs in oxide film breakage, and main manifestations is local corrosion, serious even perforation.Aluminium corrosion causes ground lead to attenuate, and stake resistance raises, and causing accident, cannot ensure electric power netting safe running when suffering thunder and lightning or short circuit.Therefore improving earthing material erosion resistance, ensure the stability of power system ground connection performance, extend the work-ing life of ground net, reduce power grid operation cost, is power system security economic production problem in the urgent need to address.
Summary of the invention
The present invention, for solving the problems of the technologies described above, provides a kind of ground net corrosion resistant alloy material of acid resistance soil corrosion, and the Composition Design of this material anti-corrosion element that is more reasonable, that added more meets galvanic corrosion and suppresses principle.
Realizing the technical scheme that above-mentioned purpose takes is: a kind of ground net corrosion resistant alloy material of acid resistance soil corrosion, and its weight percent composition is: C:0.1 ~ 0.25%, P:0.06 ~ 0.08%, S:0.012 ~ 0.015%, Si:1.2 ~ 1.8%, Mn:0.1 ~ 0.18%, Ag:0.000001 ~ 0.00006%, W:0.03 ~ 0.09%, Sn:0.6 ~ 0.8%, V:0.2 ~ 0.5%, all the other are iron.
The ground net corrosion resistant alloy material of acid resistance soil corrosion of the present invention, also can contain at least one in following weight percent composition: Ir:0.000001 ~ 0.000003%, Ru:0.0000003 ~ 0.000005%, Rh:0.0000002 ~ 0.000006%.
In the present invention above-mentioned each alloys producing and corrosion resistance mechanism as follows: the carbon in alloy material: Main Function improves alloy material intensity, the too high levels of carbon makes cementite iron carbide content increase, the welding of alloy is unfavorable on the one hand, iron carbide and matrix alloy produce galvanic corrosion on the other hand, alloy monolithic corrosion resisting property is declined, in order to avoid the disadvantageous effect of carbon, therefore, carbon content of the present invention should control within 0.1 ~ 0.25%.
Phosphorus in alloy material: although P is impurity element, but antagonism Acid soil corrosion performance advantageous elements, have the effect improving steel general corrosion resistance and resistance to spot corrosion under ground net environment, it forms PO43-in corrosion process, plays the effect of cathodic inhibiter.But, when the content of P is lower, higher to firm production cost, need advanced production technique simultaneously.Therefore, the content of phosphorus controls within 0.06 ~ 0.08% by the present invention, the welding property of steel can not be made to reduce, reduce cost simultaneously, can form uniform rusty scale on steel surface thus suppress corrosion, and play the effect of cathodic inhibiter.
Sulphur in alloy material: sulphur be in alloy smelting not or the element lacked, the weldability intensity of sulphur alloy is unfavorable, but when P content lower than 0.012% time the cost of steel can be caused sharply to increase, the simultaneously production technique of advanced person.Therefore, the content of sulphur controls 0.012 ~ 0.015% by the present invention.
Silicon in alloy material: silicon is deoxidation and ensures the intensity of steel, and the content of silicon is too low can not ensure minimum intensity, too highly affects welding property.Therefore, the silicone content of the application should control within 1.2 ~ 1.8%.
Manganese in alloy material: manganese is the same with silicon, effect is element needed for deoxidation and intensity, and can improve the wear resisting property of steel, manganese can weaken the fragility that alloy causes because of sulphur simultaneously, improves the processing characteristics of steel.The too high levels of manganese can make grain coarsening, easily makes steel produce white point.Therefore, the Fe content of the application should control within 0.1 ~ 0.18%, makes the wear resisting property of alloy material reach best.
Silver in alloy material: silver-colored stable in properties, it is anti-corrosion element, be not subject to the corrosion of soda acid, matter is soft is rich in ductility, electric conductivity is high, and Main Function is the performance improving alloy general corrosion resistance, and it forms fine and close compound film on the surface of steel, matrix and corrosive environment are isolated, thus inhibits the carrying out of corrosion.And it is active significantly to reduce anode, carry heavy alloyed conductivity, but the too high levels of copper can increase cost, therefore, the content of silver should control within 0.000001 ~ 0.00006 by the application simultaneously.
Tungsten in alloy material: be that the intensity of non-ferrous alloy, hardness, wear resisting property are good, stable chemical nature simultaneously, the chemical property of tungsten is very stable, not with empty G&W reaction during normal temperature, when not heating, the hydrochloric acid of any concentration, sulfuric acid, nitric acid, hydrofluoric acid and chloroazotic acid are all inoperative to tungsten, due to this characteristic, can significantly improve the corrosion resistance nature of alloy.Even if steel plate corrosion, in the rust of generation, generate WO
4 2-, due to this WO
4 2-existence, suppress chloride ion to invade surface of steel plate, produce the FeWO of insoluble at the position that the pH such as anode portion of surface of steel plate declines
4, this FeWO
4existence, also suppress chloride ion invade surface of steel plate, by suppress chloride ion invade surface of steel plate, effectively suppress the corrosion of steel plate.Therefore, the content of tungsten controls 0.03 ~ 0.09% by the application.
Tin in alloy material: the chemical property of tin is very stable, is used for carrying heavy alloyed corrosion resistance nature, is not easily oxidized by oxygen at normal temperatures, so it often keeps silver-colored glittering gloss, and tin is nontoxic, can not contaminated soil.Therefore, the content of tin controls 0.6 ~ 0.8% by the application.
Vanadium in alloy material: Grain refinement is strong, can improve intensity and the toughness of steel, reduces superheated susceptivity, improves thermostability, vanadium in atmosphere less than 250 DEG C be stable, have good plasticity-, forging property.What produce insoluble at the position that the pH such as anode portion of surface of steel plate declines has the multiple valence state such as 2+, 3+, 4+, 5+, and pentavalent vanadium is oxidizing, and Low Valent Vanadium has reductibility.Dilute sulphuric acid, dilute hydrochloric acid, dilute phosphoric acid are kept relative stability.Therefore, the content of vanadium controls 0.2 ~ 0.5% by the application.
Iridium in alloy material: the chemical property of iridium is very stable.Be the most corrosion resistant metal, the chemical stability of iridium to acid is high, is insoluble to acid, only has spongiform iridium just can be dissolved in lentamente in hot chloroazotic acid, if the iridium of densifie state, even the chloroazotic acid of boiling, can not corrode iridium; Slightly be subject to the erosion of the sodium hydroxide of melting, potassium hydroxide and sodium dichromate 99.General etching reagent all can not corrode iridium.What produce insoluble at the position that the pH such as anode portion of surface of steel plate declines has 2+, 4+, 6+ many kinds of valence states, effectively suppresses the corrosion of steel plate.The iridium of trace can improve that alloy thermoelectricity capability is good, high-temperature oxidation resistant, corrosion resistance nature.Therefore, the content of iridium controls 0.000001 ~ 0.000003 by the application.
Ruthenium in alloy material: chemical property is very stable, when temperature reaches 100 DEG C, comprise chloroazotic acid all resist power to common acid, also resist power to hydrofluoric acid and phosphoric acid, ruthenium mainly carries heavy alloyed corrosion resistant performance.Therefore, the application will
rutheniumcontent control 0.0000003 ~ 0.000005%.
Rhodium in alloy material: rhodium is that matter is extremely hard, wear-resisting, also has suitable ductility.Can carry heavy alloyed hardness, wear resisting property and corrosion resistance nature, what produce insoluble at the position that the pH such as anode portion of surface of steel plate declines has 2+, 4+, 6+ many kinds of valence states, effectively suppresses the corrosion of steel plate.Therefore, the application will
rutheniumcontent control 0.0000002 ~ 0.000006%.
Compared with the prior art, compared with the copper that ground net corrosion resistant alloy material and the fine copper of acid resistance soil corrosion of the present invention add per-cent, when not adding copper, by adding the trace silver of good conductivity, cost is than fine copper or to add the copper of per-cent lower, and wear resisting property is good, and conductivity more, acidproof corrosion resistance nature is better, and can not pollute soil, and alloy has better erosion resistance.
Embodiment
A ground net corrosion resistant alloy material for acid resistance soil corrosion, its weight percent composition is: C:0.1 ~ 0.25%, P:0.06 ~ 0.08%, S:0.012 ~ 0.015%, Si:1.2 ~ 1.8%, Mn:0.1 ~ 0.18%, Ag:0.000001 ~ 0.00006%, W:0.03 ~ 0.09%, Sn:0.6 ~ 0.8%, V:0.2 ~ 0.5%, all the other are iron.
The ground net corrosion resistant alloy material of acid resistance soil corrosion of the present invention, also can contain at least one in following weight percent composition: Ir:0.000001 ~ 0.000003%, Ru:0.0000003 ~ 0.000005%, Rh:0.0000002 ~ 0.000006%.
Preferably, a ground net corrosion resistant alloy material for acid resistance soil corrosion, its weight percent composition is: C:0.1 ~ 0.25%, P:0.06 ~ 0.08%, S:0.012 ~ 0.015%, Si:1.2 ~ 1.8%, Mn:0.1 ~ 0.18%, Ag:0.000003 ~ 0.00005%, W:0.04 ~ 0.06%, Sn:0.6 ~ 0.8%, V:0.3 ~ 0.4%, all the other are iron.
The ground net corrosion resistant alloy material of acid resistance soil corrosion of the present invention, also can contain at least one in following weight percent composition: Ir:0.000001 ~ 0.000003%, Ru:0.0000003 ~ 0.000005%, Rh:0.0000002 ~ 0.000006%.
Embodiment one
The ground net corrosion resistant alloy material of acid resistance soil corrosion of the present invention, its weight percent composition is: C:0.1%, P:0.06%, S:0.012%, Si:1.2%, Mn:0.1%, Ag:0.000001%, W:0.03%, Sn:0.6%, V:0.2%, Ir:0.000001%, all the other are iron.
Embodiment two
The ground net corrosion resistant alloy material of acid resistance soil corrosion of the present invention, its weight percent composition is: C:0.25%, P:0.08%, S:0.015%, Si:1.8%, Mn:0.18%, Ag:0.00006%, W:0.09%, Sn:0.8%, V:0.5%, Ru:0.000005%, all the other are iron.
Embodiment three
The ground net corrosion resistant alloy material of a kind of acid resistance soil corrosion of the present invention, its weight percent composition is: C:0.2%, P:0.07%, S:0.013%, Si:1.5%, Mn:0.14%, Ag:0.0000035%, W:0.06%, Sn:0.7%, V:0.25%, Ir:0.000002%, all the other are iron.
Embodiment four
The ground net corrosion resistant alloy material of a kind of acid resistance soil corrosion of the present invention, its weight percent composition is: C:0.2%, P:0.07%, S:0.013%, Si:1.5%, Mn:0.14%, Ag:0.0000035%, W:0.06%, Sn:0.7%, V:0.25%, Ir:0.000002%, Ru:0.0000004% all the other be iron.
Embodiment five
The ground net corrosion resistant alloy material of a kind of acid resistance soil corrosion of the present invention, its weight percent composition is: C:0.2%, P:0.07%, S:0.013%, Si:1.5%, Mn:0.14%, Ag:0.0000035%, W:0.06%, Sn:0.7%, V:0.25%, Ir:0.000002%, Ru:0.0000004%, Rh:0.0000004%, all the other are iron.
Using ordinary method to carry out Corrosion resistance in coastland the ground net corrosion resistant alloy material product of the acid resistance soil corrosion of above-described embodiment 1-5 can test test result is as shown in table 1:
Show 1:600 days soil corrosion mean rate tables
Claims (1)
1. a ground net corrosion resistant alloy material for acid resistance soil corrosion, its weight percent composition is: C:0.1 ~ 0.25%, P:0.06 ~ 0.08%, S:0.012 ~ 0.015%, Si:1.2 ~ 1.8%, Mn:0.1 ~ 0.18%, Ag:0.000001 ~ 0.00006%, W:0.03 ~ 0.09%, Sn:0.6 ~ 0.8%, V:0.2 ~ 0.5%, Ir:0.000001 ~ 0.000003%, all the other are iron.
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| WO2007129703A1 (en) * | 2006-05-09 | 2007-11-15 | Nippon Steel & Sumikin Stainless Steel Corporation | Stainless steel excellent in corrosion resistance, ferritic stainless steel excellent in crevice corrosion resistance and formability, and ferritic stainless steel excellent in crevice corrosion resistance |
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| CA2778865A1 (en) * | 2012-05-25 | 2013-11-25 | Hydro-Quebec | Alloys of the type fe3aita(ru) and use thereof as electrode material for the synthesis of sodium chlorate |
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