CN113584350A - High-temperature oxidation resistant cast high-tungsten-nickel-based alloy and preparation method thereof - Google Patents
High-temperature oxidation resistant cast high-tungsten-nickel-based alloy and preparation method thereof Download PDFInfo
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- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims abstract description 92
- 239000000956 alloy Substances 0.000 title claims abstract description 90
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 87
- 229910052759 nickel Inorganic materials 0.000 title claims abstract description 43
- 230000003647 oxidation Effects 0.000 title claims abstract description 39
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 39
- 238000002360 preparation method Methods 0.000 title abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 12
- 229910052684 Cerium Inorganic materials 0.000 claims abstract description 10
- 229910052746 lanthanum Inorganic materials 0.000 claims abstract description 10
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 10
- 239000000155 melt Substances 0.000 claims description 12
- 238000007670 refining Methods 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 229910052710 silicon Inorganic materials 0.000 claims description 10
- 239000002893 slag Substances 0.000 claims description 10
- 229910052742 iron Inorganic materials 0.000 claims description 8
- 230000006698 induction Effects 0.000 claims description 7
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 6
- 150000002910 rare earth metals Chemical class 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 229910052748 manganese Inorganic materials 0.000 claims description 4
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 229910052758 niobium Inorganic materials 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 238000005266 casting Methods 0.000 abstract description 15
- 238000012986 modification Methods 0.000 abstract description 8
- 230000004048 modification Effects 0.000 abstract description 8
- 238000003723 Smelting Methods 0.000 abstract description 6
- 229910000831 Steel Inorganic materials 0.000 abstract description 6
- 239000010959 steel Substances 0.000 abstract description 6
- 239000010937 tungsten Substances 0.000 abstract description 6
- 238000013461 design Methods 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 17
- 239000011651 chromium Substances 0.000 description 10
- 239000010955 niobium Substances 0.000 description 10
- 239000011572 manganese Substances 0.000 description 9
- 229910052799 carbon Inorganic materials 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 238000005096 rolling process Methods 0.000 description 7
- 238000005728 strengthening Methods 0.000 description 6
- 238000009749 continuous casting Methods 0.000 description 5
- 239000011159 matrix material Substances 0.000 description 5
- 229910000601 superalloy Inorganic materials 0.000 description 5
- 229910000604 Ferrochrome Inorganic materials 0.000 description 4
- 229910000616 Ferromanganese Inorganic materials 0.000 description 4
- 229910000592 Ferroniobium Inorganic materials 0.000 description 4
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 4
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 description 4
- 239000006104 solid solution Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910000531 Co alloy Inorganic materials 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 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 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- MOWMLACGTDMJRV-UHFFFAOYSA-N nickel tungsten Chemical compound [Ni].[W] MOWMLACGTDMJRV-UHFFFAOYSA-N 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000004584 weight gain Effects 0.000 description 1
- 235000019786 weight gain Nutrition 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
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
- C22C19/051—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
- C22C19/055—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being at least 20% but less than 30%
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/023—Alloys based on nickel
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
Abstract
The invention provides a high-temperature oxidation resistant cast high-tungsten nickel-based alloy and a preparation method thereof, wherein the alloy comprises the following components in percentage by weight: 0.1-0.2% of C, 51-54% of Ni, 26-27% of Cr, 0.8-1.0% of Si, 0.5% of Nb, 1.0-1.5% of Mn, 5.1-6.9% of W, the balance of Fe and trace Ce and La. The invention combines the alloy component design with the traditional casting method, effectively improves the oxidation resistance of the nickel-based high-temperature alloy material through the reasonable selection of raw material selection, smelting process, melt modification process, pouring process and the like, and can better meet the performance requirements of cushion blocks or roll rings in a high-temperature furnace of a rolled steel wire, a metallurgical heat treatment furnace, petrochemical high-temperature equipment and the like on the nickel-based alloy.
Description
Technical Field
The invention belongs to the field of metal materials, and particularly relates to a high-temperature oxidation resistant cast high-tungsten nickel-based alloy and a preparation method thereof.
Background
The short-flow continuous casting and rolling billet production line integrates a series of high and new technologies such as secondary refining, near-net-shape high-speed continuous casting, tunnel heating, modern hot rolling, online automatic detection, computer process control and the like, realizes continuous and automatic production of hot rolled plates from molten steel to finished products, and has the advantages of compact production process, short period, low energy consumption, high yield, less investment, low cost and the like. The continuous casting and rolling production line needs a tunnel type and roller hearth type heating furnace to heat and convey the steel billet. The roller hearth furnace is an important transition device for connecting a continuous casting machine and a rolling mill. When the billet moves in the heating furnace, the billet is supported by the rotating heat-resistant alloy roll collar and moves above the rotating heat-resistant alloy roll collar. When producing thinner steel billet, the heat-resistant alloy roll collar should bear the high temperature of 1150-1250 ℃ in the heating furnace, and keep higher oxidation resistance and high temperature strength. Thus, some imported lines used Co50 alloy (i.e., containing Co 50% with the balance being primarily Cr and Fe) to make roll collars. However, this material is expensive because of the use of expensive cobalt, and the high temperature performance is still to be improved. Therefore, the development of low-cost nickel-based alloy which can meet the high-temperature performance requirement and has lower cost to replace cobalt-based alloy is of great significance.
In addition, parts such as radiant tubes, elbows and material frames in various high-temperature heat treatment furnaces, and parts such as pendants and pipe fittings in high-temperature devices in the petrochemical industry need to work at high temperature for a long time, and need to be manufactured by adopting materials resistant to high-temperature oxidation. The parts are usually made of a cast steel material such as ZG40Cr25Ni20 and the like, so that the defects such as cracking, deformation, oxidation and the like are easy to occur after the parts are used for a period of time at high temperature, the service life is short, the replacement frequency is high, and the normal operation of equipment is seriously influenced.
The nickel-based high-temperature alloy is a high-temperature alloy which takes nickel as a matrix (the content is generally more than 40 percent), has higher strength within the range of 650-1100 ℃ and has good oxidation resistance. It is developed on the basis of Cr20Ni80 alloy, and has great amount of strengthening elements added to meet the requirement of high temperature resistance and antioxidant performance of Ni-base high temperature alloy at over 1000 deg.c. Tungsten is used as a strengthening element and is often added into the nickel-based high-temperature alloy to play a role in solid solution strengthening, the radius of tungsten atoms is larger and is more than ten percent larger than that of matrix nickel, the solid solution strengthening effect is obvious, and the high temperature resistance and the oxidation resistance of the alloy are obviously improved by combining the addition of elements such as molybdenum, manganese, niobium and the like.
The recent Chinese patent application with the publication number of CN 111575536A, "a high W, Mo content nickel-based superalloy and a preparation method thereof" discloses a nickel-based superalloy, which mainly comprises the following components in percentage by mass: 0.013-0.018 of C, 20-21 of Cr, 7.9-8.1 of W, 7.9-8.1 of Mo, 0.6-0.75 of Al, 0.6-0.75 of Ti, 0.28-0.33 of Mn, 0.15-0.20 of Si, 0.002-0.013 of P, 0.001-0.013 of S, 0.11-0.19 of Fe, 0.002-0.005 of B, 0.02-0.05 of Ce, 0.02-0.06 of Zr and the balance of Ni. The invention is characterized by high Mo content and W content. The patent application with the publication number of CN 111411266A discloses a preparation process of a nickel-based high-tungsten polycrystalline superalloy, which comprises the following components in percentage by mass: cr: 15-18%, Co: 15-20%, Ti: 0.5-1.5%, Al: 3.5-4.5%, W: 7.0-8.5%, Si: less than or equal to 0.5 percent, Mn: less than or equal to 0.5 percent, Nb: 0.5-1.5%, C: 0.03-0.08 percent of Ni and the balance of Ni, smelting under the vacuum degree of 0.3-0.5 Pa and under the protection of argon, and refining by adopting an electroslag remelting process to obtain an ingot; forging and cogging, rolling at high temperature, and finally performing heat treatment. The invention is mainly characterized in that the alloy contains Al, and the compound of Al and Ni is used for improving the strength and oxidation resistance. The alloy of the invention is completely recrystallized after heat treatment, the grain size is 30-50 microns, and Ni is dispersed and distributed in the crystal3Al phase, and the volume fraction of the Al phase is not less than 35%, and the yield strength of the Al phase is not less than 700MPa at the temperature of 850 ℃.
The steel-making and rolling production line uses a large amount of high-temperature alloy and is mainly used as a cushion block in a heating furnace and a conveying roller of a billet. The metallurgical industry or the petrochemical industry also needs to adopt a large amount of high-temperature oxidation resistant alloy materials, and most of the domestic high-temperature alloys are made of high-alloy cast steel or cobalt-containing high-nickel alloy, so the cost is high. And many of the materials developed can only meet the requirements of lower production temperatures of less than 1100 ℃. There is an urgent need to develop a new alloy for reducing the cost and improving the high temperature performance for the manufacture of nickel base alloy parts for production lines with service temperatures up to about 1200 c.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a cast nickel-based alloy with good high temperature resistance and oxidation resistance, good comprehensive performance and low cost and a preparation method thereof.
The technical scheme adopted for solving the problems in the prior art is as follows:
a high-temperature oxidation resistant cast nickel-based alloy comprises the following alloy components in percentage by weight:
0.1-0.2% of C, 51-54% of Ni, 26-27% of Cr, 0.8-1.0% of Si, 0.5% of Nb, 1.0-1.5% of Mn, 5.1-6.9% of W, the balance of Fe and trace Ce and La.
The weight percentage of Ce is less than or equal to 0.05 percent, and the weight percentage of La is less than or equal to 0.05 percent.
A preparation method of a high-temperature oxidation resistant cast nickel-based alloy specifically comprises the following steps:
step 1, melting Ni (nickel 51-54 wt.%), Fe (iron 9.6-14.1 wt.%), Cr (chromium 26-27 wt.%), W (tungsten 5.1-6.9 wt.%), and Nb (niobium 0.5 wt.%) raw materials in the above ratio into a nickel-based alloy melt at 1500 ℃ by an induction melting electric furnace;
step 2, heating the nickel-based alloy melt obtained in the step 1 to 1580-1630 ℃, adding Si (0.8-1.0 wt.% of silicon) and Mn (1.0-1.5 wt.% of manganese) raw materials in the proportion, performing pre-deoxidation treatment, and removing surface slag; then, adjusting the temperature of the melt to 1530-1580 ℃;
step 3, adding 0.05-0.15% of mixed rare earth raw material into the melt obtained in the step 2 at 1550 ℃, refining and modifying the melt, and keeping the temperature for 3 minutes;
the rare earth raw material is a mixture of Ce, La, Fe and Si, wherein the sum of Ce and La is more than 50%;
and 4, removing surface slag from the melt refined in the step 3, and pouring at 1480-1550 ℃ to obtain the nickel-based high-temperature alloy.
The invention combines the design of alloy components with the traditional casting method, effectively improves the oxidation resistance of the nickel-based high-temperature alloy material through the reasonable selection of raw material selection, smelting process, modification process of melt, casting process and the like, and the alloy can be used for manufacturing parts such as nickel-based alloy roll collars, heating furnace cushion blocks and the like of continuous casting and rolling conveying belts.
The invention has the following advantages:
(1) the nickel content of the alloy is 51-54%, and the components do not contain Co, so that the good thermal strength and oxidation resistance of the alloy are ensured, and the cost is reduced compared with the similar Co-containing nickel-based alloy.
(2) The content of carbon element is strictly controlled by the alloy, the selected raw materials are all materials with very little carbon content, carbides are not enriched and distributed, but are uniformly distributed in a matrix in a superfine mode, crystal grains are round and fine, and the mechanical property and the oxidation resistance of the whole casting are improved.
(3) Good melt treatment measures and reasonable melting sequence are adopted, and the silicon and manganese deoxidizers and the rare earth refining agent with obvious effects are added, so that the oxide inclusion in the melt is greatly reduced, and the solid solution strengthening effect of alloy elements is greatly improved.
(4) The element W with higher content can generate fine and evenly distributed carbide with a small amount of carbon atoms in the matrix besides solid solution strengthening, thereby improving the comprehensive properties of the alloy, such as high temperature resistance, oxidation resistance, high strength and the like.
The high-tungsten nickel-based alloy has good normal temperature performance and high temperature performance, and can better meet the performance requirements of cushion blocks or roll collars in high-temperature furnaces of steel rolling wires, metallurgical heat treatment furnaces, petrochemical high-temperature equipment and other occasions on the nickel-based alloy.
Drawings
FIG. 1 is an as-cast metallographic structure drawing (500X) of a high W-Ni based alloy according to example 1 of the present invention;
FIG. 2 is a cross-sectional view (1000X) of the vicinity of the surface of the high tungsten-nickel-based alloy of example 1 of the present invention after the oxidation test at 1200 ℃.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
A high-temperature oxidation resistant cast nickel-based alloy comprises the following alloy components in percentage by weight: 0.1-0.2% of C, 51-54% of Ni, 26-27% of Cr, 0.8-1.0% of Si, 0.5% of Nb, 1.0-1.5% of Mn, 5.1-6.9% of W, and the balance of Fe, and trace Ce (less than or equal to 0.05%) and La (less than or equal to 0.05%).
The preparation of the nickel-based high-temperature alloy comprises two processes of smelting and modification treatment. The Ni and W elements are added from pure metal raw materials, the Cr element is usually added in the form of micro-carbon ferrochrome, and the Nb element is added in the form of ferrocolumbium. Before the preparation, the raw materials are prepared according to the weight percentage for standby. The deoxidizer Si is ferrosilicon intermediate alloy, and Mn is ferromanganese intermediate alloy. The refining and modifying agent RE is added by the material of mixed rare earth.
Si and Mn in the alloy are added as deoxidizer, and refining and modificator RE is added as refining and modificator to play the role of final deoxidation and grain refinement.
The invention strictly controls the operation temperature of each stage and the pouring temperature. And smelting and pouring by adopting a method of carrying out rapid smelting in an electric induction furnace or a vacuum electric induction furnace.
Example 1
According to the weight percentage of the alloy components, Ni51-Cr27-W5.1-Nb0.5-Si1-Mn1-C0.1, and the balance Fe; pure Ni with the purity of 99.98%, micro-carbon ferrochrome containing 60% of Cr and 0.06% of C and ferrocolumbium containing 75% of Nb are put into an induction furnace and melted into nickel-based alloy melt at 1500 ℃. Then, the alloy melt is overheated to 1580 ℃, and ferrosilicon and ferromanganese are added for deoxidation treatment to remove surface slag. Adjusting the temperature of the melt to 1530 ℃, adding 0.05 percent of RE to carry out refining and modification treatment at 1550 ℃, wherein the content of Ce and La in the RE is 50 percent, and the balance is Fe and Si. Removing slag on the surface of the refined and modified alloy melt, and then directly pouring the alloy melt into a casting mold to obtain a nickel-based alloy with the alloy components of Ni51-Cr27-W5.1-Nb0.5-Si1-Mn1-C0.1 and the balance of Fe; the casting temperature is 1480 ℃. The mechanical property of the alloy casting can reach 525MPa of room temperature strength and 125MPa of 1000 ℃ high temperature strength.
The cast metallographic structure diagram (500X) is shown in figure 1, and the matrix structure of the alloy is austenite, the grains are fine and no large carbide is found in the diagram.
The cross-sectional view of the vicinity of the surface after the 1200 ℃ oxidation test is shown in FIG. 2, and it is clear from FIG. 2 that the oxide film on the upper surface layer is very thin, confirming that the high temperature oxidation resistance is good.
Example 2
According to the weight percentage of the alloy components, Ni54-Cr26-W6.9-Nb0.5-Si0.8-Mn1.5-C0.2, and the balance Fe; pure Ni with the purity of 99.98%, micro-carbon ferrochrome containing 60% of Cr and 0.06% of C and ferrocolumbium containing 75% of Nb are put into an induction furnace and melted into nickel-based alloy melt at 1500 ℃. Then, the alloy melt is overheated to 1580 ℃, and ferrosilicon and ferromanganese are added for deoxidation treatment to remove surface slag. Adjusting the temperature of the melt to 1580 ℃, adding 0.2% of RE to carry out refining and modification treatment at 1550 ℃, wherein the content of Ce and La in RE is 52%, and the balance is Fe and Si. Removing slag on the surface of the refined and modified alloy melt, and then directly pouring into a casting mold to obtain an alloy casting body with the alloy components of Ni54-Cr26-W6.9-Nb0.5-Si0.8-Mn1.5-C0.2 and the balance of Fe; the casting temperature was 1550 ℃. The mechanical property of the alloy casting body can reach 531MPa of room temperature strength and 128MPa of high temperature strength at 1000 ℃.
Example 3
According to the weight percentage of the alloy components, Ni52-Cr26-W6-Nb0.5-Si0.9-Mn1.2-C0.15, and the balance Fe; pure Ni with the purity of 99.98%, micro-carbon ferrochrome containing 60% of Cr and 0.06% of C and ferrocolumbium containing 75% of Nb are put into an induction furnace and melted into nickel-based alloy melt at 1500 ℃. Then, the alloy melt is overheated to 1580 ℃, and ferrosilicon and ferromanganese are added for deoxidation treatment to remove surface slag. Adjusting the temperature of the melt to 1580 ℃, adding 0.10% of RE to carry out refining and modification treatment at 1550 ℃, wherein the content of Ce and La in RE is 52%, and the balance is Fe and Si. Removing slag on the surface of the refined and modified alloy melt, and then directly pouring into a casting mold to obtain an alloy casting body with the alloy components of Ni52-Cr26-W6-Nb0.5-Si0.9-Mn1.2-C0.15 and the balance of Fe; the casting temperature was 1530 ℃. The mechanical property of the alloy casting body can reach 530MPa of room temperature strength and 126MPa of 1000 ℃ high temperature strength.
The results of the tests on the room temperature strength (MPa) and the high temperature strength (MPa) at 1000 ℃ for the alloys of the three groups of examples are shown in Table 1,
TABLE 1 mechanical Properties of the alloys of the two examples
| Serial number | Strength at room temperature (MPa) | High temperature strength (MPa) at 1000 DEG C |
| Example 1 | 525 | 125 |
| Example 2 | 531 | 128 |
| Example 3 | 530 | 126 |
As can be seen from Table 1, the nickel-base superalloy of the present invention has excellent room temperature properties and high temperature properties.
According to HB5258-2000 (determination method for oxidation resistance of steel and high-temperature alloy), the oxidation resistance of the alloy is evaluated, and the oxidation resistance grades of the high-temperature alloy are respectively as follows: complete oxidation resistance, secondary oxidation resistance, weak oxidation resistance and no oxidation resistance. The average oxidation weight gain rate and the oxidation resistance level experiment calculated after the nickel-based superalloy is oxidized for 100 hours in the air medium are carried out, and specific results are shown in table 2.
TABLE 2 Oxidation test results
As can be seen from table 2, the alloy of the present invention exhibits oxidation resistance even at 1200 ℃, confirming its good high temperature oxidation resistance.
The protective scope of the present invention is not limited to the above-described embodiments, and it is apparent that various modifications and variations can be made to the present invention by those skilled in the art without departing from the scope and spirit of the present invention. It is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.
Claims (4)
1. The high-temperature oxidation resistant cast nickel-based alloy is characterized by comprising the following components in percentage by weight:
0.1-0.2% of C, 51-54% of Ni, 26-27% of Cr, 0.8-1.0% of Si, 0.5% of Nb, 1.0-1.5% of Mn, 5.1-6.9% of W, the balance of Fe and trace Ce and La.
2. The high temperature oxidation resistant cast nickel-base alloy of claim 1, wherein: the weight percentage of Ce is less than or equal to 0.05 percent, and the weight percentage of La is less than or equal to 0.05 percent.
3. The method for preparing a high temperature oxidation resistant cast nickel-base alloy according to any one of claims 1-2, comprising the steps of:
step 1, melting the raw materials of Ni, Fe, Cr, W and Nb in the proportion into nickel-based alloy melt at 1500 ℃ by an induction melting electric furnace;
step 2, heating the nickel-based alloy melt obtained in the step 1 to 1580-1630 ℃, adding the Si and Mn raw materials in the ratio, performing pre-deoxidation treatment, and removing surface slag; then, adjusting the temperature of the melt to 1530-1580 ℃;
step 3, adding 0.05-0.15% of mixed rare earth raw material into the melt obtained in the step 2 at 1550 ℃, refining and modifying the melt, and keeping the temperature for 3 minutes;
and 4, removing surface slag from the melt refined in the step 3, and pouring at 1480-1550 ℃ to obtain the nickel-based high-temperature alloy.
4. The method of making a high temperature oxidation resistant cast nickel-base alloy of claim 3, wherein: the rare earth raw material is a mixture of Ce, La, Fe and Si, wherein the sum of Ce and La is more than 50%.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114231795A (en) * | 2021-12-23 | 2022-03-25 | 佛山市天禄智能装备科技有限公司 | Preparation method of high-temperature-resistant alloy for rotary kiln and rotary kiln body |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5437743A (en) * | 1994-07-19 | 1995-08-01 | Carondelet Foundry Company | Weldable heat resistant alloy |
| CN102365381A (en) * | 2009-03-31 | 2012-02-29 | 株式会社久保田 | Cast product having alumina barrier layer |
| CN103205605A (en) * | 2013-04-08 | 2013-07-17 | 武汉索力特科技有限公司 | High-temperature-oxidation-resistant casting nickel-based alloy and preparation method thereof |
| CN104023903A (en) * | 2011-11-02 | 2014-09-03 | 新日铁住金株式会社 | Welding material for ni-based heat-resistant alloys, and welded metal and melded joint each using same |
| WO2019112234A1 (en) * | 2017-12-07 | 2019-06-13 | 주식회사 포스코 | Chromium-nickel-based alloy for radiant tube, having excellent high-temperature deformation resistance and crack resistance, and manufacturing method therefor |
| CN110268079A (en) * | 2017-02-09 | 2019-09-20 | 日本制铁株式会社 | Austenitic heat-resistant alloy and its manufacturing method |
-
2021
- 2021-07-30 CN CN202110869171.8A patent/CN113584350A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5437743A (en) * | 1994-07-19 | 1995-08-01 | Carondelet Foundry Company | Weldable heat resistant alloy |
| CN102365381A (en) * | 2009-03-31 | 2012-02-29 | 株式会社久保田 | Cast product having alumina barrier layer |
| CN104023903A (en) * | 2011-11-02 | 2014-09-03 | 新日铁住金株式会社 | Welding material for ni-based heat-resistant alloys, and welded metal and melded joint each using same |
| CN103205605A (en) * | 2013-04-08 | 2013-07-17 | 武汉索力特科技有限公司 | High-temperature-oxidation-resistant casting nickel-based alloy and preparation method thereof |
| CN110268079A (en) * | 2017-02-09 | 2019-09-20 | 日本制铁株式会社 | Austenitic heat-resistant alloy and its manufacturing method |
| WO2019112234A1 (en) * | 2017-12-07 | 2019-06-13 | 주식회사 포스코 | Chromium-nickel-based alloy for radiant tube, having excellent high-temperature deformation resistance and crack resistance, and manufacturing method therefor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114231795A (en) * | 2021-12-23 | 2022-03-25 | 佛山市天禄智能装备科技有限公司 | Preparation method of high-temperature-resistant alloy for rotary kiln and rotary kiln body |
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Application publication date: 20211102 |