WO2022196775A1 - 熱膨張制御合金 - Google Patents
熱膨張制御合金 Download PDFInfo
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- WO2022196775A1 WO2022196775A1 PCT/JP2022/012418 JP2022012418W WO2022196775A1 WO 2022196775 A1 WO2022196775 A1 WO 2022196775A1 JP 2022012418 W JP2022012418 W JP 2022012418W WO 2022196775 A1 WO2022196775 A1 WO 2022196775A1
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- WIPO (PCT)
- Prior art keywords
- thermal expansion
- alloy
- mass
- expansion control
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- Prior art date
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- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 62
- 239000000956 alloy Substances 0.000 title claims abstract description 62
- 239000012535 impurity Substances 0.000 claims abstract description 9
- 239000013078 crystal Substances 0.000 claims description 9
- 229910052804 chromium Inorganic materials 0.000 claims description 7
- 239000003792 electrolyte Substances 0.000 claims description 7
- 239000000446 fuel Substances 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 15
- 239000011651 chromium Substances 0.000 description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 230000003647 oxidation Effects 0.000 description 7
- 238000007254 oxidation reaction Methods 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 6
- 229910052759 nickel Inorganic materials 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000005242 forging Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 229910052748 manganese Inorganic materials 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 229910000846 In alloy Inorganic materials 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- -1 C: ≤ 0.15% Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 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
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 238000004881 precipitation hardening Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 229910002076 stabilized zirconia Inorganic materials 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 229910000601 superalloy Inorganic materials 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
- C22C38/105—Ferrous alloys, e.g. steel alloys containing cobalt containing Co and Ni
-
- 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
- C22C19/07—Alloys based on nickel or cobalt based on cobalt
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/52—Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/10—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
- F03G7/06—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying or the like
- F03G7/061—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying or the like characterised by the actuating element
- F03G7/0616—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying or the like characterised by the actuating element characterised by the material or the manufacturing process, e.g. the assembly
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
- F03G7/06—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying or the like
- F03G7/064—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying or the like characterised by its use
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2280/00—Materials; Properties thereof
- F05B2280/10—Inorganic materials, e.g. metals
- F05B2280/107—Alloys
- F05B2280/1071—Steel alloys
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Definitions
- the present invention relates to thermal expansion control alloys, particularly having low thermal expansion characteristics or negative thermal expansion characteristics near 600 to 800 ° C.
- the present invention relates to alloys suitable for parts of internal combustion engines, mold materials for molding glass, and materials for heat sinks used in high-temperature environments.
- Solid oxide electrolyte fuel cells use ceramics such as stabilized zirconia as the electrolyte, and in recent years, applications that operate at medium to high temperatures of 700 to 800°C have also been developed.
- the interconnector of the solid oxide electrolyte fuel cell is a conductive plate that is electrically connected in series to form a cell stack, and is also an interconnector plate that separates the fuel gas and the oxidizing gas. It supports the three layers of electrodes, forms gas channels, and conducts current.
- interconnectors are required to have characteristics such as excellent electrical conductivity at medium and high temperatures, oxidation resistance, a small difference in thermal expansion with the electrolyte, low cost, and ease of processing.
- Various alloys suitable for interconnectors have been developed.
- the value of A is in the range of 27.5 to 29.5, and the balance is Fe and unavoidable
- a high-strength, low-thermal-expansion casting alloy for high temperature use is disclosed, which is composed of 30% to 90% of the martensite phase in the microstructure.
- Patent document 3 has a coefficient of thermal expansion equivalent to that of ferritic 12Cr steel, excellent high-temperature strength, corrosion resistance, oxidation resistance, good hot workability, and excellent weldability.
- ⁇ ' precipitation hardening type low thermal expansion Ni-base superalloy C: ⁇ 0.15%, Si: ⁇ 1%, Mn:
- Patent document 4 forms an oxide film having good electrical conductivity at about 700 to 950 ° C., has good oxidation resistance even in long-term use, especially peeling resistance, and impact at room temperature
- C 0.2% or less
- Si 1.0% or less
- Mn 1.0% by mass %.
- Ni 2% or less
- Cr 15 to 30%
- Al 1% or less
- the selected one or more are included, and the balance is substantially Fe.
- the steel satisfies the formula (1), the hardness is 280 HV or less, and the average ferrite grain size is fine grains of ASTM 2 or more.
- an object of the present invention is to obtain an alloy having low thermal expansion characteristics (the absolute value of the thermal expansion coefficient is small) or negative thermal expansion characteristics (the value of the thermal expansion coefficient is negative) in the vicinity of 600 to 800 ° C. .
- the present inventors have made intensive research on alloys with low thermal expansion characteristics at high temperatures. As a result, the inventors have found that by controlling the components of an Fe--Co--Ni alloy, it is possible to obtain an alloy with low thermal expansion characteristics or negative thermal expansion characteristics at high temperatures.
- the present invention was made through further studies, and the gist thereof is as follows.
- a thermal expansion control alloy characterized by containing 20 to 50% Fe, 0 to 25% Ni, and 0 to 30% Cr, in terms of mass%, and the balance being Co and impurities.
- a thermal expansion control alloy that satisfies the components described in any one of the above (1) to (3) and contains 5% or more of a region in which the crystal structure is an ordered phase.
- an alloy having low thermal expansion characteristics or negative thermal expansion characteristics in the vicinity of 600 to 800°C can be obtained.
- the thermal expansion control alloy of the present invention is a Co-based alloy containing Fe, Ni, and optionally Cr.
- the thermal expansion control alloy of the present invention contains 20-50% by mass of Fe.
- the Fe content is preferably 20.0% by mass or more, more preferably 25.0% by mass or more, and still more preferably 28.0% by mass or more. Also, it is preferably 50.0% by mass or less, more preferably 46.0% by mass or less, and even more preferably 42.0% by mass or less.
- the thermal expansion control alloy of the present invention contains 0-25% by mass of Ni.
- Ni has the effect of lowering the temperature at which the ordered phase starts to become disordered.
- Ni is not essential and the content may be 0, but by adjusting the content, it is possible to control the temperature range in which low thermal expansion characteristics or negative thermal expansion characteristics occur in a high temperature environment.
- Ni since Ni has the effect of increasing the existence ratio of ordered phases, it is possible to control low thermal expansion characteristics or negative thermal expansion characteristics in a high temperature environment by including an appropriate amount.
- the Ni content is preferably 3.0% by mass or more, more preferably 4.0% by mass or more, and even more preferably 6.0% by mass or more. Also, it is preferably 25.0% by mass or less, more preferably 22.0% by mass or less, and even more preferably 20.0% by mass or less.
- Impurities may be included as long as they do not affect the effects of the present invention.
- Impurities include C, S, P, and Cu, which are elements that are not intentionally added in the manufacturing process (inevitable impurities), and Si, Al, and Mn, which are added for purposes such as deoxidation.
- the thermal expansion control alloy of the present invention may contain Cr instead of part of the above Fe.
- Cr has the effect of preventing high temperature oxidation and corrosion.
- Cr is not an essential element for obtaining an alloy having low thermal expansion characteristics or negative thermal expansion characteristics in the vicinity of 600 to 800° C., and the lower limit of its content in the present invention is 0.
- the effect of adding Cr can be obtained even with a very small amount of addition, but in order to effectively prevent high-temperature oxidation and corrosion, the content is preferably 5% by mass or more, more preferably 10% by mass or more.
- Cr is also an element that increases the coefficient of thermal expansion, so the content is made 30% by mass or less.
- the Cr content is preferably 5.0% by mass or more, more preferably 10.0% by mass or more, and even more preferably 15.0% by mass or more. Also, it is preferably 30.0% by mass or less, more preferably 25.0% by mass or less, and even more preferably 20.0% by mass or less.
- the structure of the thermal expansion control alloy of the present invention preferably contains 5% or more of the region having the above-described ordered phase in the crystal structure.
- the inclusion of 5% or more of the crystal structure can be confirmed by determining the lattice constant by measuring the X-ray diffraction spectrum of the thermal expansion control alloy.
- the lattice constant of the thermal expansion control alloy of the present invention changes depending on the chemical composition. If the composition is constant, the abundance ratio of the ordered phase and the disordered phase can be determined by proportionally allocating the lattice constants of the respective phases by the abundance ratio.
- the ordered phase region is It is judged to contain 5% or more.
- the ratio of the ordered phase region is preferably 10% or more, more preferably 15% or more, and still more preferably 20% or more.
- the thermal expansion control alloy of the present invention can be obtained by casting.
- the mold used for casting, the device for pouring molten steel into the mold, and the method of pouring are not particularly limited, and known devices and methods may be used.
- An as-cast alloy having the chemical composition described above has a low coefficient of thermal expansion at high temperatures, that is, the absolute value of the coefficient of thermal expansion is small or negative.
- the as-cast alloy may be subjected to hot forging at a temperature of 1050 to 1250°C for the purpose of forming.
- the forging ratio at that time is desirably 3 or more.
- Low thermal expansion characteristics or negative thermal expansion characteristics are maintained even when hot forging is performed. It is also possible to process the steel to a thickness of 0.1 to 10 mm by hot rolling and cold rolling. Even in that case, low thermal expansion characteristics or negative thermal expansion characteristics are maintained.
- An alloy containing 5% or more of ordered phases can be obtained as it is cast, forged, or rolled. It is preferable to heat to 1100° C., hold for 0.5 to 5 hours, and then cool in the furnace. Since the amount of the ordered phase increases as the cooling rate slows down, it is preferably 10 to 100° C./hr. If the cooling rate is fast, the ordered phase may not be 5% or more.
- an ordered phase is formed even with a rapidly cooled alloy, if it is heated to a temperature of 300 to 700°C and held for a certain period of time. After performing heat treatment at a temperature of 800 to 1100° C., it is also possible to form an ordered phase by heating and holding for a certain period of time at a temperature of 300 to 700° C. using a salt bath.
- the thermal expansion control alloy of the present invention has an average thermal expansion coefficient at 600 to 800 ° C. of 9.0 ⁇ 10 -6 / ° C. or less, preferably 8.0 ⁇ 10 -6 / ° C. or less, and more It is preferably 7.5 ⁇ 10 ⁇ 6 /° C. or less.
- Example 1 A molten metal adjusted to have the components shown in Table 1 was poured into a mold to prepare an alloy. No. in Table 1. In Nos. 21-27, the cast alloys were subjected to hot forging at 1100° C., then heated at 1100° C. for 2 hours, and then furnace cooled at 100° C./hr. A thermal expansion test piece ( ⁇ 5 ⁇ 20 L) was taken from the produced alloy, and using a NETZSCH thermal expansion measuring machine, quartz was used as a standard sample, and the differential expansion method was performed at a temperature increase rate of 5 ° C./min. The coefficient of thermal expansion was measured from room temperature to 1000°C, and the average coefficient of thermal expansion from 600°C to 800°C was derived. Table 1 shows the results obtained.
- an alloy having low thermal expansion characteristics or negative thermal expansion characteristics in the vicinity of 600 to 800°C can be obtained.
- Fig. 1 shows an example of the thermal expansion curve from room temperature to 1000°C of the alloy produced in the example. It was confirmed that the alloys of invention examples have lower thermal expansion than austenitic alloys in all temperature ranges, and that a low thermal expansion region and a negative thermal expansion region appear at temperatures of 600 to 800°C.
- the ferritic alloy of the comparative example had a thermal expansion curve similar to that of the alloy of the example up to 600° C., but neither low thermal expansion characteristics nor negative thermal expansion characteristics appeared.
- Example 2 A molten metal adjusted to have the components shown in Table 2 was poured into a mold to prepare an alloy. An oxidation resistance evaluation test piece ( ⁇ 8 ⁇ 25L) was taken from the produced alloy. A sampled test piece was heat-treated at a temperature of 800° C., and the mass increase due to oxide formation was measured every 24 hours. Table 2 shows the results obtained. As shown in Table 2, it was confirmed that the thermal expansion control alloy of the present invention can improve oxidation resistance at high temperature (800° C.) by containing Cr.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Manufacturing & Machinery (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
Description
表1に記載の成分を有するように調整した溶湯を鋳型に注湯し、合金を作製した。表1のNo.21~27では、鋳造後の合金に1100℃で熱間鍛造を施し、その後、1100℃で2時間加熱後、100℃/hrで炉冷した。作製した合金から、熱膨張試験片(φ5×20L)を採取し、NETZSCH製熱膨張測定機を用いて、標準試料に石英を用い、示差膨張方式によって、昇温速度5℃/minの条件で室温から1000℃までの熱膨張率を測定し、600℃から800℃までの平均熱膨張係数を導出した。得られた結果を表1に示す。
表2に記載の成分を有するように調整した溶湯を鋳型に注湯し、合金を作製した。作製した合金から、耐酸化性評価試験片(φ8×25L)を採取した。採取した試験片に対し温度800℃で熱処理を行い、24時間毎に酸化物形成による質量増加を測定した。得られた結果を表2に示す。表2に示すように、本発明の熱膨張制御合金は、Crを含有させることにより、高温(800℃)における耐酸化性を向上させることができることが確認できた。
Claims (8)
- 質量%で、
Fe:20~50%、
Ni:0~25%、及び
Cr:0~30%
を含有し、残部がCo及び不純物である
ことを特徴とする熱膨張制御合金。 - Ni:3~25%を含有することを特徴とする請求項1に記載の熱膨張制御合金。
- Cr:5~30%を含有することを特徴とする請求項1又は2に記載の熱膨張制御合金。
- 請求項1~3のいずれか1項に記載の成分を満たし、結晶構造が規則相となる領域を5%以上含むことを特徴とする熱膨張制御合金。
- 請求項1~4のいずれか1項に記載の熱膨張制御合金からなる固体酸化物電解質型燃料電池用インターコネクタ。
- 請求項1~4のいずれか1項に記載の熱膨張制御合金からなるガスタービン用又は蒸気タービン用部品。
- 請求項1~4のいずれか1項に記載の熱膨張制御合金からなるガラス成形用金型。
- 請求項1~4のいずれか1項に記載の熱膨張制御合金からなるヒートシンク。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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JP2023507187A JPWO2022196775A1 (ja) | 2021-03-19 | 2022-03-17 | |
US18/282,968 US20240167131A1 (en) | 2021-03-19 | 2022-03-17 | Controlled expansion alloy |
EP22771520.8A EP4310212A1 (en) | 2021-03-19 | 2022-03-17 | Thermal expansion-controlled alloy |
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JP2021-046088 | 2021-03-19 | ||
JP2021046088 | 2021-03-19 |
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WO2022196775A1 true WO2022196775A1 (ja) | 2022-09-22 |
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ID=83321086
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PCT/JP2022/012418 WO2022196775A1 (ja) | 2021-03-19 | 2022-03-17 | 熱膨張制御合金 |
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Country | Link |
---|---|
US (1) | US20240167131A1 (ja) |
EP (1) | EP4310212A1 (ja) |
JP (1) | JPWO2022196775A1 (ja) |
WO (1) | WO2022196775A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116855811A (zh) * | 2023-07-05 | 2023-10-10 | 华中科技大学 | 一种零膨胀双相高熵合金及其制备方法 |
Citations (10)
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JPH07145454A (ja) * | 1993-11-22 | 1995-06-06 | Sumitomo Special Metals Co Ltd | 固体電解質型燃料電池用金属材料 |
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JP2011074454A (ja) * | 2009-09-30 | 2011-04-14 | Nachi Fujikoshi Corp | 低熱膨張合金 |
JP2011231410A (ja) | 2011-07-11 | 2011-11-17 | Daido Steel Co Ltd | 低熱膨張Ni基超合金 |
JP2014501845A (ja) | 2011-02-18 | 2014-01-23 | ヘインズ インターナショナル,インコーポレーテッド | 高温低熱膨張Ni−Mo−Cr合金 |
WO2017006659A1 (ja) * | 2015-07-06 | 2017-01-12 | 日本鋳造株式会社 | 高温用高強度低熱膨張鋳造合金およびその製造方法、ならびにタービン用鋳造品 |
WO2018186417A1 (ja) * | 2017-04-04 | 2018-10-11 | 新報国製鉄株式会社 | 低熱膨張合金 |
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2022
- 2022-03-17 WO PCT/JP2022/012418 patent/WO2022196775A1/ja active Application Filing
- 2022-03-17 US US18/282,968 patent/US20240167131A1/en active Pending
- 2022-03-17 EP EP22771520.8A patent/EP4310212A1/en active Pending
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Cited By (2)
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CN116855811A (zh) * | 2023-07-05 | 2023-10-10 | 华中科技大学 | 一种零膨胀双相高熵合金及其制备方法 |
CN116855811B (zh) * | 2023-07-05 | 2024-02-02 | 华中科技大学 | 一种零膨胀双相高熵合金及其制备方法 |
Also Published As
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JPWO2022196775A1 (ja) | 2022-09-22 |
US20240167131A1 (en) | 2024-05-23 |
EP4310212A1 (en) | 2024-01-24 |
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