CN111088447B - Pre-oxidized Ni-Fe-Al series alloy used in molten chloride and pre-oxidation process - Google Patents
Pre-oxidized Ni-Fe-Al series alloy used in molten chloride and pre-oxidation process Download PDFInfo
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- CN111088447B CN111088447B CN202010170180.3A CN202010170180A CN111088447B CN 111088447 B CN111088447 B CN 111088447B CN 202010170180 A CN202010170180 A CN 202010170180A CN 111088447 B CN111088447 B CN 111088447B
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- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 title claims abstract description 25
- 230000003647 oxidation Effects 0.000 title claims abstract description 23
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 13
- 229910045601 alloy Inorganic materials 0.000 title abstract description 28
- 239000000956 alloy Substances 0.000 title abstract description 28
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 22
- 238000001816 cooling Methods 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 238000005520 cutting process Methods 0.000 claims abstract description 5
- 238000001035 drying Methods 0.000 claims abstract description 5
- 238000005498 polishing Methods 0.000 claims abstract description 5
- 238000004140 cleaning Methods 0.000 claims abstract description 4
- 229910052573 porcelain Inorganic materials 0.000 claims description 8
- 238000004321 preservation Methods 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 7
- 238000004458 analytical method Methods 0.000 claims description 5
- 238000012360 testing method Methods 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 4
- 239000012528 membrane Substances 0.000 abstract description 3
- BYFGZMCJNACEKR-UHFFFAOYSA-N aluminium(i) oxide Chemical compound [Al]O[Al] BYFGZMCJNACEKR-UHFFFAOYSA-N 0.000 abstract 2
- 230000007797 corrosion Effects 0.000 description 15
- 238000005260 corrosion Methods 0.000 description 15
- 239000011651 chromium Substances 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- 238000001228 spectrum Methods 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 229910052759 nickel Inorganic materials 0.000 description 4
- 238000002441 X-ray diffraction Methods 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 150000003841 chloride salts Chemical class 0.000 description 3
- 238000012937 correction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005338 heat storage Methods 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- 229910020948 NaCl—MgCl2 Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229910052593 corundum Inorganic materials 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000003487 electrochemical reaction Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000001000 micrograph Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000001878 scanning electron micrograph Methods 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical group Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 241000985284 Leuciscus idus Species 0.000 description 1
- 229910003264 NiFe2O4 Inorganic materials 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- NQNBVCBUOCNRFZ-UHFFFAOYSA-N nickel ferrite Chemical compound [Ni]=O.O=[Fe]O[Fe]=O NQNBVCBUOCNRFZ-UHFFFAOYSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 125000001997 phenyl group Chemical class [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000010180 surface X-ray diffraction Methods 0.000 description 1
- 238000005211 surface analysis Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000004506 ultrasonic cleaning Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
- C23C8/10—Oxidising
- C23C8/12—Oxidising using elemental oxygen or ozone
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
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Abstract
The preoxidation Ni-Fe-Al series alloy used in the molten chloride and the preoxidation process thereof, the alloy series elements are a Ni-b Fe-c Al according to the mass fraction, wherein, a is more than or equal to 55 and less than or equal to 75, b is more than or equal to 20 and less than or equal to 30, c is more than or equal to 5 and less than or equal to 15, and a + b + c = 100. Al2O is formed on the alloy surface after pre-oxidation pretreatment3And (3) a membrane. The preoxidation process comprises the steps of cutting a sample with a certain specification, polishing, cleaning, drying, placing in a resistance furnace, heating to 1150 ℃ in atmospheric atmosphere, preserving heat for 24 hours, slowly cooling to room temperature, and finally analyzing the surface phase and other characteristics of the sample. The pre-oxidized Ni-Fe-Al alloy is suitable for use as a structural material in a molten chloride environment.
Description
Technical Field
The invention relates to an alloy technology in service under severe conditions, in particular to a technology of a corrosion-resistant material in a molten chloride environment.
Background
Solar photo-thermal power generation technology is an important form of solar energy utilization. The fused chloride is used as a heat transfer medium and a phase-change heat storage medium, so that the problem of system instability caused by solar energy intermittence can be solved, and the system has the advantages of good high-temperature thermal stability, high system operation temperature, low cost and the like, and can further improve the system light-heat-electricity conversion efficiency and reduce the operation cost. The molten chloride salt currently being investigated and selected includes NaCl-MgCl2、NaCl-MgCl2-KCl、NaCl-MgCl2-CaCl2And mixed salt systems.
However, molten chloride is highly corrosive to metal members such as molten salt pipes and heat storage containers of solar thermal power stations. The researches of scholars at home and abroad in recent years show that the main reason of the corrosion is that the alloy element chromium (Cr) for improving the corrosion resistance of the alloy in the conventional medium preferentially generates chlorination reaction in the molten chloride medium to generate a chloride escape corrosion system of low-melting-point and volatile chromium(see in particular The following three papers (1) R. Bender, M. Schultze. The roll of inorganic substances in commercial solutions for correction of resistance in differentiating-chloriding coatings, Part I: Literature evaluation and thermal regulation of phase stability, Materials and correction, 2003, 54, 567-membered coating 586. (2) Wang Junwei, Zhang Cuizhen, Li Zhuohua, Zhou Hongxia, He Jianxin, Yu Jingcha, Corrosion benzene derivatives of inorganic substances, NaCl-gold nanoparticles 2. solution&Solar cells 2017, 164: 146-. (3) Corrosion of Li Yunshi, Niyan, Liu Jiang, Wu Wei 24354g, pure iron and 310 stainless steel at 450 ℃ under ZnCl2-KCl salt membrane, metal bulletin, 2000, 36(11): 1183-1186. ) In addition, in the conventional corrosion medium, surface chromium oxide (Cr) having a protective effect on the sample2O3) The film, also having a high solubility in molten chloride salts, will lose its protective effect.
At present, no corrosion-resistant structural alloy suitable for molten chloride environment exists. The existing structural alloys such as stainless steel, Fe-based, Ni-based and Co-based high-temperature alloys generally contain over 12 wt.% of alloy element Cr, so that the Corrosion rate is as high as hundreds to thousands of micrometers per year, the design life requirement of a heat transfer pipeline and a heat storage container of a Solar thermal power station can not be met, and the alloy elements such as Ni and Fe have better Corrosion resistance (see the following two papers (4) J.C. Gomez-video, A.G. Fernandez, R. Tirawat, C. Turchi, W. Huddleston, and correction resistance of aluminum for forming alloy obtained from carbon atoms for producing alloys II: Electrochemical reaction of Electrochemical reaction units& Solar Cells, 2017, 166: 234-245.。（5）WangJunwei, ZhouHongxia ,ZhangCuizhen,LiuWenning,ZhaoBaiyao, Influence of MgCl2 Content on Corrosion Behavior of GH1140 in Molten NaCl-MgCl2 as Thermal Storage Medium. Solar Energy Materials &And 9, 194-201 parts of Solar cells 2018 and 179 (1). ) After adding enough alloying element aluminum (Al) into the alloy, preoxidation will form oxidation of AlAnd the film protects the sample substrate from corrosion damage.
Disclosure of Invention
The invention aims to provide a pre-oxidized Ni-Fe-Al alloy which is suitable for a molten chloride environment and is resistant to molten chloride corrosion, and a pre-oxidation treatment process thereof.
The invention relates to a pre-oxidized Ni-Fe-Al alloy used in molten chloride and a pre-oxidation process thereof, wherein the pre-oxidized Ni-Fe-Al alloy used in the molten chloride comprises the following chemical components in percentage by mass: a Ni-b Fe-c Al; wherein a is more than or equal to 55 and less than or equal to 75, b is more than or equal to 20 and less than or equal to 30, c is more than or equal to 5 and less than or equal to 15, and a + b + c = 100.
The preoxidation process for preoxidizing Ni-Fe-Al alloy in molten chloride comprises the following steps:
the first step is as follows: sample preparation: cutting a Ni-Fe-Al alloy sample according to the requirement, polishing the surface to be flat, cleaning and drying for later use;
the second step is that: heating: putting the sample into a porcelain boat, putting the porcelain boat into a resistance furnace, and starting to heat at a heating speed of 5 ℃/min in an atmospheric atmosphere;
the third step: and (3) heat preservation: after the temperature is heated to 1150 ℃, the temperature is kept for 24 hours in the atmosphere;
the fourth step: cooling: after the heat preservation is finished, cooling to the room temperature gradually at the speed of 3 ℃/min;
the fifth step: analysis and test: and (4) after the temperature of the sample is reduced to room temperature, taking the sample out of the resistance furnace, and analyzing the microstructure of the sample before and after pre-oxidation and the components of the pre-prepared oxide film on the surface of the sample.
The invention has the beneficial effects that: 1. aiming at the problem that the alloy element Cr in the existing structural alloy is the main factor causing corrosion in molten chloride environment, a novel pre-oxidized Ni-Fe-Al alloy without Cr is designed. Not only fundamentally avoids the harmful effect of Cr from the perspective of alloy components, but also forms a compact and continuous Al-rich oxide film on the surface of the sample after pre-oxidation treatment, isolates molten chloride from the matrix of the sample, and is beneficial to improving the corrosion resistance of the alloy. 2. The invention adopts the pre-oxidation process under the air condition, has low requirement on equipment and is simple and convenient to operate.
Drawings
FIG. 1 is a metallographic photograph of a microstructure of an 66.42 Ni-24.50 Fe-9.08 Al alloy of the present invention, FIG. 2 is a scanning electron micrograph and an elemental distribution energy spectrum surface scanning (EDS) result of a 66.42 Ni-24.50 Fe-9.08 Al alloy of the present invention, FIG. 3 is a surface X-ray diffraction analysis (XRD) result of a sample before and after a pre-oxidation treatment of a 66.42 Ni-24.50 Fe-9.08 Al alloy of the present invention, FIG. 4 is a Scanning Electron Microscope (SEM) photograph of a cross-sectional microstructure of a 66.42 Ni-24.50 Fe-9.08 Al alloy of the present invention after a pre-oxidation treatment, and FIG. 5 is a cross-sectional element distribution energy spectrum surface scanning (EDS) result of a 66.42 Ni-24.50 Fe-9.08 Al alloy of the present invention after a pre-oxidation treatment.
Detailed Description
The invention relates to a pre-oxidized Ni-Fe-Al alloy used in molten chloride and a pre-oxidation process thereof, wherein the pre-oxidized Ni-Fe-Al alloy used in the molten chloride comprises the following chemical components in percentage by mass: a Ni-b Fe-c Al; wherein a is more than or equal to 55 and less than or equal to 75, b is more than or equal to 20 and less than or equal to 30, c is more than or equal to 5 and less than or equal to 15, and a + b + c = 100.
The above-mentioned pre-oxidized Ni-Fe-Al alloy for use in molten chloride forms a layer of Al on the surface of a specimen after the pre-oxidation treatment2O3And (3) a membrane.
The pre-oxidized Ni-Fe-Al alloy used in the molten chloride comprises the following chemical components in percentage by mass: a Ni-b Fe-c Al; wherein a =66.42, b =24.50, and c = 9.08.
The preoxidation process for preoxidizing Ni-Fe-Al alloy in molten chloride comprises the following steps:
the first step is as follows: sample preparation: cutting a Ni-Fe-Al alloy sample according to the requirement, polishing the surface to be flat, cleaning and drying for later use;
the second step is that: heating: putting the sample into a porcelain boat, putting the porcelain boat into a resistance furnace, and starting to heat at a heating speed of 5 ℃/min in an atmospheric atmosphere;
the third step: and (3) heat preservation: after the temperature is heated to 1150 ℃, the temperature is kept for 24 hours in the atmosphere;
the fourth step: cooling: after the heat preservation is finished, cooling to the room temperature gradually at the speed of 3 ℃/min;
the fifth step: analysis and test: and (4) after the temperature of the sample is reduced to room temperature, taking the sample out of the resistance furnace, and analyzing the microstructure of the sample before and after pre-oxidation and the components of the pre-prepared oxide film on the surface of the sample.
The invention is further described in detail below with reference to the drawings and the detailed description. The following examples will aid those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any manner. It should be noted that variations and modifications can be effected by a person skilled in the art without departing from the basic idea of the invention. These are all protection enclosures of the present invention.
Example 1: the alloy is a pre-oxidized Ni-Fe-Al system alloy used in molten chloride, and the chemical composition of the alloy is a Ni-b Fe-c Al according to the weight fraction of elements; where a =66.42, b =24.50, c =9.08, i.e. the series alloy is denoted 66.42 Ni-24.50 Fe-9.08 Al, abbreviated 9.08 Al.
In this embodiment, the pre-oxidation process of the pre-oxidized Ni — Fe — Al alloy used in the molten chloride salt includes the following steps:
the first step is as follows: sample preparation: cutting a 9.08Al alloy sample with the thickness of 10 mm multiplied by 3 mm, polishing the surface to be flat by using abrasive paper, sequentially carrying out ultrasonic cleaning in deionized water and absolute ethyl alcohol for 10 minutes, and drying for later use;
the second step is that: heating: putting the sample into a porcelain boat, putting the porcelain boat into a resistance furnace, and starting to heat at a heating speed of 5 ℃/min in an atmospheric atmosphere;
the third step: and (3) heat preservation: after the temperature is heated to 1150 ℃, the temperature is kept for 24 hours in the atmosphere;
the fourth step: cooling: after the heat preservation is finished, cooling to the room temperature gradually at the speed of 3 ℃/min;
the fifth step: analysis and test: and (3) after the temperature of the sample is reduced to room temperature, taking the sample out of the resistance furnace, analyzing the surface phase characteristics of the sample before and after pre-oxidation by using an X-ray diffractometer, and observing and analyzing the microstructure of the sample before and after pre-oxidation by using a scanning electron microscope with an energy spectrum accessory. And observing the metallographic structure of the sample before pre-oxidation by using an optical microscope.
Alloy structure and phase test results:
firstly, before pre-oxidation treatment:
the metallographic micrograph of the 9.08Al specimen and the scanning electron-absorption micrograph and the energy spectrum surface analysis of the metallographic specimen obtained in example 1 are shown in FIGS. 1 and 2, respectively, from which it is apparent that the alloy is composed of a matrix phase and an Al-rich phase, and it is presumed that the matrix phase of the specimen may be (Ni, Al) by combining the results of X-ray diffraction before the preoxidation and after 24 hours of the preoxidation shown in FIG. 33Fe, Al-rich phase may be Ni5Al3. The Al-rich phase is in a lamellar shape and is intensively distributed near the grain boundary.
Secondly, after pre-oxidation treatment:
the scanning electron micrograph of the cross section of the 9.08Al sample obtained in example 1 after pre-oxidation treatment is shown in fig. 4, and it is obvious that the surface of the sample forms a multi-layer relatively dense shell-like structure. Combining the X-ray diffraction result after the sample is pre-oxidized for 24 h shown in fig. 3 and the cross-sectional energy spectrum surface scanning result after the sample is pre-oxidized shown in fig. 5, it is known that the outermost layer is mainly the oxide of Fe and Ni: NiFe2O4、Fe3O4And NiO; while the inner layer forms relatively continuous compact Al2O3. Al shown in FIG. 3 due to the covering of the surface layer with Fe and Ni oxides2O3The diffraction peak intensity is weak. In molten chloride medium, the dense, continuous Al2O3The film can isolate the contact of molten chloride and an alloy matrix, and plays a role in protecting a sample.
Although some embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the scope of the invention.
Claims (1)
1. The preoxidation process is used for preoxidizing Ni-Fe-Al alloy in molten chloride, and the chemical components of the Ni-Fe-Al alloy comprise the following components in percentage by mass: a Ni-b Fe-c Al; wherein a =66.42, b =24.50, c = 9.08;
the method is characterized by comprising the following steps:
the first step is as follows: sample preparation: cutting a Ni-Fe-Al alloy sample according to the requirement, polishing the surface to be flat, cleaning and drying for later use;
the second step is that: heating: putting the sample into a porcelain boat, putting the porcelain boat into a resistance furnace, and starting to heat at a heating speed of 5 ℃/min in an atmospheric atmosphere;
the third step: and (3) heat preservation: after the temperature is heated to 1150 ℃, the temperature is kept for 24 hours in the atmosphere;
the fourth step: cooling: after the heat preservation is finished, cooling to the room temperature gradually at the speed of 3 ℃/min;
the fifth step: analysis and test: and (4) after the temperature of the sample is reduced to room temperature, taking the sample out of the resistance furnace, and analyzing the microstructure of the sample before and after pre-oxidation and the components of the pre-prepared oxide film on the surface of the sample.
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| JP2013500390A (en) * | 2009-07-27 | 2013-01-07 | ティッセンクルップ ファオ デー エム ゲゼルシャフト ミット ベシュレンクテル ハフツング | Nickel-based acid-resistant metal material |
| CN105420659A (en) * | 2015-11-03 | 2016-03-23 | 江苏奇纳新材料科技有限公司 | Preparation process for ceramic oxidation film resistant to fused salt corrosion |
| CN109136825A (en) * | 2018-11-09 | 2019-01-04 | 东北大学 | A method of Co-Al-W system high temperature alloy hot corrosion resistance is improved using pre-oxidation |
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| US20190292631A1 (en) * | 2016-05-20 | 2019-09-26 | Sandvik Intellectual Property Ab | An object comprising a pre-oxidized nickel-based alloy |
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|---|---|---|---|---|
| JP2013500390A (en) * | 2009-07-27 | 2013-01-07 | ティッセンクルップ ファオ デー エム ゲゼルシャフト ミット ベシュレンクテル ハフツング | Nickel-based acid-resistant metal material |
| CN105420659A (en) * | 2015-11-03 | 2016-03-23 | 江苏奇纳新材料科技有限公司 | Preparation process for ceramic oxidation film resistant to fused salt corrosion |
| CN109136825A (en) * | 2018-11-09 | 2019-01-04 | 东北大学 | A method of Co-Al-W system high temperature alloy hot corrosion resistance is improved using pre-oxidation |
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| Title |
|---|
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| Effect of Alloy Element Al on the Corrosion Behavior of Ni-10wt%Fe Based Alloy in Molten NaCl;Wang Junwei等;《Rare Metal Materials and Engineering》;20170131;第46卷(第1期);第57-62页 * |
| Ni-xFe合金在520℃熔融NaCl-MgCl2中的腐蚀行为及成分优化;向荣桥等;《青海大学学报》;20190430;第37卷(第2期);第73-77页 * |
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