CN105349811A - Method for increasing rare earth element yield in casting process of nickel-based single crystal superalloy - Google Patents

Method for increasing rare earth element yield in casting process of nickel-based single crystal superalloy Download PDF

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CN105349811A
CN105349811A CN201510764867.9A CN201510764867A CN105349811A CN 105349811 A CN105349811 A CN 105349811A CN 201510764867 A CN201510764867 A CN 201510764867A CN 105349811 A CN105349811 A CN 105349811A
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rare earth
calcium
shell
alloy ingot
master alloy
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CN105349811B (en
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汪航
陈辉明
张建波
肖翔鹏
杨斌
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Jiangxi University of Science and Technology
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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D21/00—Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

The invention discloses a method for increasing the rare earth element yield in the casting process of nickel-based single crystal superalloy. The method includes the following steps that a mother alloy ingot is cast, the mother alloy ingot with corresponding components is prepared according to requirements, the calcium element of a certain content is added into the mother alloy ingot, and the weight percentage of the calcium is not smaller than 0.5% and not larger than 2.0%; directional solidification is carried out, the mother alloy ingot is placed in a crucible, the air pressure is made to 10-5 Pa through vacuumizing, the temperature is increased to 1580+/-20 DEG C, heat preservation lasts for 30 min, casting is carried out, and then standing lasts for 30 min; a shell is drawn with the speed being 4-6 mm/min, and when the temperature is decreased to 900 DEG C, the shell is taken out after vacuum is eliminated; and after the shell is air-cooled to the room temperature, the shell is removed, and a casting is taken out.

Description

Improve the method for nickel-base high-temperature single crystal alloy castingprocesses rare earth elements recovery rate
Technical field
The present invention relates to a kind of method improving nickel-base high-temperature single crystal alloy castingprocesses rare earth elements recovery rate, be specially a kind of mode by increasing alloying element in nickel-base high-temperature single crystal alloy, and coordinate certain directional solidification technique processing parameter, be reduced in the loss of castingprocesses rare earth elements, improve the recovery rate of rare earth element.
Background technology
Rare earth element is applied extremely extensive in the important industry such as national defence new high-tech industry, information industry, new forms of energy, novel material and machinery, metallurgy, oil, chemical industry, it is current very important national strategy resource, it is again non-renewable rare geological and mineral resource simultaneously, in US Senate Appropriations Committee hearing in 2014, be more described to the crucial natural resources of 21st century competition in overall national strength.Along with the quick growth of rare earth material demand, rare earth resources is wasted, utilization ratio is low, consume the contradictions such as too fast.The immense pressure that the useless solid resource such as rare earth produces environment, causes the great attention of country, has in succession put into effect policy and Administrative Regulationss such as " State Council are about the some suggestions promoting rare-earth trade sustainable and healthy development ".Therefore, nowadays the efficiency utilization of rare earth resources becomes the common recognition of the numerous scientific workers of industry, is the most important thing of China's Rare-earth Industry strategy of sustainable development.
Current rare earth element, in many application, adds rare earth element and is subject to more and more attracting attention in recent years in nickel base superalloy.Because nickel base superalloy (superalloy) has the performances such as high-melting-point high strength, develop into most important aircraft engine high-temperature structural material gradually at present, and the interpolation of rare earth element is conducive to the oxidation-resistance and the thermal etching that improve nickel base superalloy greatly.For this reason, deepening the nickel-base high-temperature materials research and development to adding rare earth element, both having met development in science and technology of world trend and China's new material development strategy, Rare-earth Industry actual demand of fitting again, realize rare earth resources efficiency utilization, advance the rational structural adjustment of Rare-earth Industry chain and optimization.
The preparation of nickel base superalloy uses lost wax process usually, and in castingprocesses, the loss of rare earth element can up to 50-80%, and recovery rate is lower than 50%.Trace it to its cause and mainly contain 2 points: (one) melting loss of elements, alloy melting process and casting cycle are low pressure (vacuum) environment, aggravation element evaporation, but due to rare earth element fusing point high, compare low melting point element loss less; (2) loss of reaction, in casting cycle, because rare earth element is comparatively active, reacts between the meeting of alloy rare earth elements and shell, such as 3SiO 2+ 4Y=2Y 2o 3+ 3Si, causes ree content sharply to decline.
Summary of the invention
The method of raising nickel-base high-temperature single crystal alloy castingprocesses rare earth elements recovery rate provided by the present invention, for the second rare earth element loss cause in prior art, by improving alloying constituent, adjustment directional solidification technique processing parameter, reaches the object reducing rare earth element loss, improve rare earth element recovery rate.
To achieve these goals, the present invention adopts following technical scheme to realize:
A kind of method improving nickel-base high-temperature single crystal alloy castingprocesses rare earth elements recovery rate, it is characterized in that, described method comprises Ni-based cast monocrystalline high temperature master alloy ingot step, in described nickel-base high-temperature single crystal alloy, add calcium, the weight percent of calcium in the master alloy ingot cast is 0.5%≤Ca≤2.0%.
Further, in described master alloy ingot castingprocesses, calcium adds with simple substance form, and the addition of calcium is 0.5%, 1.0% or 2.0%.
Further, the recovery rate of described method rare earth elements is 75.5-89.0%.
Further, described method also comprises directed solidification step, is specially and carries out successively in vacuum chamber: master alloy ingot is loaded crucible, vacuumize, and heat up fusing, and the insulation scheduled time, casting, leaves standstill the scheduled time, pull shell.Pull shell to refer to shell together with foundry goods pull, and foundry goods is grown toward a direction.
Further, when vacuum room temp is down to 900 DEG C, closes vacuum and take out shell, after air cooling to room temperature, remove shell, take out foundry goods.
Further, in described directed solidification step, 10 are evacuated to -5pa, be warming up to 1580 DEG C ± 20 DEG C fusings, soaking time 30min, time of repose 30min, pull shell speed is 4-6mm/min.
Further, described pull shell speed is 4mm/min, 5mm/min or 6mm/min.
Further, containing following component in described master alloy ingot, by weight percentage: aluminium 5.75%, cobalt 5.0%, chromium 9.5%, molybdenum 4.0%, titanium 1.9%, tungsten 5.5%, rare earth element 0.2%, calcium 0.5-2.0%, inevitable impurity < 0.08%, surplus is nickel.
Further, containing following component in described master alloy ingot, by weight percentage: aluminium 5.75%, cobalt 9.0%, chromium 4.4%, molybdenum 2.0%, tantalum 7.2%, tungsten 8.0%, rhenium 2.0%, rare earth element 0.2%, calcium 0.5-2.0%, inevitable impurity < 0.08%, surplus is nickel.
Further, described rare earth element is yttrium or lanthanum.
The method that the present invention improves nickel-base high-temperature single crystal alloy castingprocesses rare earth elements recovery rate has the following advantages:
Because the activity of calcium is higher than rare earth element, in the present invention, the membership that adds of calcium first reacts with shell, as Ca+SiO2=CaO+Si, hinders the reaction of rare earth element and shell, reduces the loss of rare earth element; Calcium (fusing point more than 800 degree) adds with simple substance form, and under vacuum conditions, waste is not too large.
In the present invention, pull shell speed is at 5 ± 1mm/min, and too high then formation monocrystalline ability, the too much calcium constituent of too low then loss, therefore this speed coordinates the addition of calcium constituent to design.
The present invention significantly can be reduced in the loss of castingprocesses rare earth elements, and improve the recovery rate of rare earth element, the recovery rate of the method rare earth elements is 75.5-89.0%.
Embodiment
For further setting forth the present invention for the technique means that reaches predetermined technique object and take and effect, below in conjunction with preferred embodiment, technological process of the present invention, feature and effect are described in detail as follows.
The present invention can be suitable for all rare earth elements, and at this only with Y (yttrium), La (lanthanum) does EXPERIMENTAL EXEMPLIFICATIONThe explanation.
Embodiment 1
Prepare the master alloy ingot (content of rare earth is 0.2%) of corresponding composition according to table 1, and add the calcium constituent of certain content wherein, the weight percent of calcium is 0.5%.Master alloy ingot is loaded crucible, is evacuated to 10-5Pa, be warming up to 1550 DEG C ± 30 DEG C, insulation 30min, casting, leaves standstill 30min, pull shell, speed is 4mm/min, when temperature is down to 900 DEG C, close vacuum and take out shell, remove shell after air cooling to room temperature, take out foundry goods, ingot casting middle-weight rare earths actual content is 0.151% (weight percent), wastage rate are 24.5%, and recovery rate is 75.5%.
The each element weight percent of table 1 mother alloy
Alloying element Ni Al Co Cr Mo Ti W Y Ca Foreign matter content summation
Content Surplus 5.75 5.0 9.5 4.0 1.9 5.5 0.2 0.5 <0.08
Embodiment 2
Prepare the master alloy ingot (content of rare earth is 0.2%) of corresponding composition according to table 2, and add the calcium constituent of certain content wherein, the weight percent of calcium is 1.0%.Master alloy ingot is loaded crucible, is evacuated to 10-5Pa, be warming up to 1550 DEG C ± 30 DEG C, insulation 30min, casting, leaves standstill 30min, pull shell, speed is 5mm/min, when temperature is down to 900 DEG C, close vacuum and take out shell, remove shell after air cooling to room temperature, take out foundry goods, ingot casting middle-weight rare earths actual content is 0.153% (weight percent), wastage rate are 23.5%, and recovery rate is 76.5%.
The each element weight percent of table 2 mother alloy
Alloying element Ni Al Co Cr Mo Ti W Y Ca Foreign matter content summation
Content Surplus 5.75 5.0 9.5 4.0 1.9 5.5 0.2 1.0 <0.08
Embodiment 3
Prepare the master alloy ingot (content of rare earth is 0.2%) of corresponding composition according to table 3, and add the calcium constituent of certain content wherein, the weight percent of calcium is 2.0%.Master alloy ingot is loaded crucible, is evacuated to 10-5Pa, be warming up to 1550 DEG C ± 30 DEG C, insulation 30min, casting, leaves standstill 30min, pull shell, speed is 6mm/min, when temperature is down to 900 DEG C, close vacuum and take out shell, remove shell after air cooling to room temperature, take out foundry goods, ingot casting middle-weight rare earths actual content is 0.178% (weight percent), wastage rate are 11.0%, and recovery rate is 89.0%.
The each element weight percent of table 3 mother alloy
Alloying element Ni Al Co Cr Mo Ti W Y Ca Foreign matter content summation
Content Surplus 5.75 5.0 9.5 4.0 1.9 5.5 0.2 2.0 <0.08
Embodiment 4
Prepare the master alloy ingot (content of rare earth is 0.2%) of corresponding composition according to table 4, and add the calcium constituent of certain content wherein, the weight percent of calcium is 0.5%.Master alloy ingot is loaded crucible, is evacuated to 10-5Pa, be warming up to 1550 DEG C ± 30 DEG C, insulation 30min, casting, leaves standstill 30min, pull shell, speed is 6mm/min, when temperature is down to 900 DEG C, close vacuum and take out shell, remove shell after air cooling to room temperature, take out foundry goods, ingot casting middle-weight rare earths actual content is 0.166% (weight percent), wastage rate are 17.0%, and recovery rate is 83.0%.
The each element weight percent of table 4 mother alloy
Alloying element Ni Al Co Cr Mo Ti W La Ca Foreign matter content summation
Content Surplus 5.75 5.0 9.5 4.0 1.9 5.5 0.2 0.5 <0.08
Embodiment 5
Prepare the master alloy ingot (content of rare earth is 0.2%) of corresponding composition according to table 5, and add the calcium constituent of certain content wherein, the weight percent of calcium is 1.0%.Master alloy ingot is loaded crucible, is evacuated to 10-5Pa, be warming up to 1550 DEG C ± 30 DEG C, insulation 30min, casting, leaves standstill 30min, pull shell, speed is 5mm/min, when temperature is down to 900 DEG C, close vacuum and take out shell, remove shell after air cooling to room temperature, take out foundry goods, ingot casting middle-weight rare earths actual content is 0.171% (weight percent), wastage rate are 14.5%, and recovery rate is 85.5%.
The each element weight percent of table 5 mother alloy
Alloying element Ni Al Co Cr Mo Ti W La Ca Foreign matter content summation
Content Surplus 5.75 5.0 9.5 4.0 1.9 5.5 0.2 1.0 <0.08
Embodiment 6
Prepare the master alloy ingot (content of rare earth is 0.2%) of corresponding composition according to table 6, and add the calcium constituent of certain content wherein, the weight percent of calcium is 2.0%.Master alloy ingot is loaded crucible, is evacuated to 10-5Pa, be warming up to 1550 DEG C ± 30 DEG C, insulation 30min, casting, leaves standstill 30min, pull shell, speed is 4mm/min, when temperature is down to 900 DEG C, close vacuum and take out shell, remove shell after air cooling to room temperature, take out foundry goods, ingot casting middle-weight rare earths actual content is 0.159% (weight percent), wastage rate are 20.5%, and recovery rate is 79.5%.
The each element weight percent of table 6 mother alloy
Alloying element Ni Al Co Cr Mo Ti W La Ca Foreign matter content summation
Content Surplus 5.75 5.0 9.5 4.0 1.9 5.5 0.2 2.0 <0.08
Embodiment 7
Prepare the master alloy ingot (content of rare earth is 0.2%) of corresponding composition according to table 7, and add the calcium constituent of certain content wherein, the weight percent of calcium is 0.5%.Master alloy ingot is loaded crucible, is evacuated to 10-5Pa, be warming up to 1550 DEG C ± 30 DEG C, insulation 30min, casting, leaves standstill 30min, pull shell, speed is 4mm/min, when temperature is down to 900 DEG C, close vacuum and take out shell, remove shell after air cooling to room temperature, take out foundry goods, ingot casting middle-weight rare earths actual content is 0.154% (weight percent), wastage rate are 13.0%, and recovery rate is 77.0%.
The each element weight percent of table 7 mother alloy
Alloying element Ni Al Co Cr Mo Ta W Re Y Ca Foreign matter content summation
Content Surplus 5.75 9.0 4.4 2.0 7.2 8.0 2.0 0.2 0.5 <0.08
Embodiment 8
Prepare the master alloy ingot (content of rare earth is 0.2%) of corresponding composition according to table 8, and add the calcium constituent of certain content wherein, the weight percent of calcium is 1.0%.Master alloy ingot is loaded crucible, is evacuated to 10-5Pa, be warming up to 1550 DEG C ± 30 DEG C, insulation 30min, casting, leaves standstill 30min, pull shell, speed is 5mm/min, when temperature is down to 900 DEG C, close vacuum and take out shell, remove shell after air cooling to room temperature, take out foundry goods, ingot casting middle-weight rare earths actual content is 0.151% (weight percent), wastage rate are 24.5%, and recovery rate is 75.5%.
The each element weight percent of table 8 mother alloy
Alloying element Ni Al Co Cr Mo Ta W Re Y Ca Foreign matter content summation
Content Surplus 5.75 9.0 4.4 2.0 7.2 8.0 2.0 0.2 1.0 <0.08
Embodiment 9
Prepare the master alloy ingot (content of rare earth is 0.2%) of corresponding composition according to table 9, and add the calcium constituent of certain content wherein, the weight percent of calcium is 2.0%.Master alloy ingot is loaded crucible, is evacuated to 10-5Pa, be warming up to 1550 DEG C ± 30 DEG C, insulation 30min, casting, leaves standstill 30min, pull shell, speed is 6mm/min, when temperature is down to 900 DEG C, close vacuum and take out shell, remove shell after air cooling to room temperature, take out foundry goods, ingot casting middle-weight rare earths actual content is 0.161% (weight percent), wastage rate are 19.5%, and recovery rate is 80.5%.
The each element weight percent of table 9 mother alloy
Alloying element Ni Al Co Cr Mo Ta W Re Y Ca Foreign matter content summation
Content Surplus 5.75 9.0 4.4 2.0 7.2 8.0 2.0 0.2 2.0 <0.08
Embodiment 10
Prepare the master alloy ingot (content of rare earth is 0.2%) of corresponding composition according to table 10, and add the calcium constituent of certain content wherein, the weight percent of calcium is 0.5%.Master alloy ingot is loaded crucible, is evacuated to 10-5Pa, be warming up to 1550 DEG C ± 30 DEG C, insulation 30min, casting, leaves standstill 30min, pull shell, speed is 6mm/min, when temperature is down to 900 DEG C, close vacuum and take out shell, remove shell after air cooling to room temperature, take out foundry goods, ingot casting middle-weight rare earths actual content is 0.155% (weight percent), wastage rate are 22.5%, and recovery rate is 77.5%.
The each element weight percent of table 10 mother alloy
Alloying element Ni Al Co Cr Mo Ta W Re La Ca Foreign matter content summation
Content Surplus 5.75 9.0 4.4 2.0 7.2 8.0 2.0 0.2 0.5 <0.08
Embodiment 11
Prepare the master alloy ingot (content of rare earth is 0.2%) of corresponding composition according to table 11, and add the calcium constituent of certain content wherein, the weight percent of calcium is 1.0%.Master alloy ingot is loaded crucible, is evacuated to 10-5Pa, be warming up to 1550 DEG C ± 30 DEG C, insulation 30min, casting, leaves standstill 30min, pull shell, speed is 5mm/min, when temperature is down to 900 DEG C, close vacuum and take out shell, remove shell after air cooling to room temperature, take out foundry goods, ingot casting middle-weight rare earths actual content is 0.158% (weight percent), wastage rate are 21.0%, and recovery rate is 79.0%.
The each element weight percent of table 11 mother alloy
Alloying element Ni Al Co Cr Mo Ta W Re La Ca Foreign matter content summation
Content Surplus 5.75 9.0 4.4 2.0 7.2 8.0 2.0 0.2 1.0 <0.08
Embodiment 12
Prepare the master alloy ingot (content of rare earth is 0.2%) of corresponding composition according to table 12, and add the calcium constituent of certain content wherein, the weight percent of calcium is 2.0%.Master alloy ingot is loaded crucible, is evacuated to 10-5Pa, be warming up to 1550 DEG C ± 30 DEG C, insulation 30min, casting, leaves standstill 30min, pull shell, speed is 4mm/min, when temperature is down to 900 DEG C, close vacuum and take out shell, remove shell after air cooling to room temperature, take out foundry goods, ingot casting middle-weight rare earths actual content is 0.169% (weight percent), wastage rate are 15.5%, and recovery rate is 84.5%.
The each element weight percent of table 12 mother alloy
Alloying element Ni Al Co Cr Mo Ta W Re La Ca Foreign matter content summation
Content Surplus 5.75 9.0 4.4 2.0 7.2 8.0 2.0 0.2 2.0 <0.08
Get the product of embodiment of the present invention 1-12, carry out element determination, and calculate wastage rate and the earning rate of rare earth element, its result is concluded to table 13.
Table 13 rare earth element loss of the present invention and earning rate (weight percent)
Alloy Rare earth addition Calcium addition Rare earth residual content Rare earth wastage rate Rare earth earning rate
Product 1 0.2 0.5 0.151 24.5％ 75.5％
Product 2 0.2 1.0 0.153 23.5％ 76.5％
Product 3 0.2 2.0 0.178 11.0％ 89.0％
Product 4 0.2 0.5 0.166 17.0％ 83.0％
Product 5 0.2 1.0 0.171 14.5％ 85.5％
Product 6 0.2 2.0 0.159 20.5％ 79.5％
Product 7 0.2 0.5 0.154 13.0％ 77.0％
Product 8 0.2 1.0 0.151 24.5％ 75.5％
Product 9 0.2 2.0 0.161 19.5％ 80.5％
Product 10 0.2 0.5 0.155 22.5％ 77.5％
Product 11 0.2 1.0 0.158 21.0％ 79.0％
Product 12 0.2 2.0 0.169 15.5％ 84.5％
Described just in order to the present invention is described above, be construed as the present invention and be not limited to above embodiment, meet the various variants of inventive concept all within protection scope of the present invention.

Claims (10)

1. improve the method for nickel-base high-temperature single crystal alloy castingprocesses rare earth elements recovery rate, it is characterized in that, described method comprises Ni-based cast monocrystalline high temperature master alloy ingot step, in described nickel-base high-temperature single crystal alloy, add calcium, the weight percent of calcium in the master alloy ingot cast is 0.5%≤Ca≤2.0%.
2. the method for claim 1, is characterized in that, in described master alloy ingot castingprocesses, calcium adds with simple substance form, and the addition of calcium is 0.5%, 1.0% or 2.0%.
3. the method for claim 1, is characterized in that, the recovery rate of described method rare earth elements is 75.5-89.0%.
4. the method for claim 1, is characterized in that, described method also comprises directed solidification step, is specially and carries out successively in vacuum chamber: master alloy ingot is loaded crucible, vacuumize, heat up fusing, the insulation scheduled time, casting, leaves standstill the scheduled time, pull shell.
5. method as claimed in claim 4, is characterized in that, when vacuum room temp is down to 900 DEG C, closes vacuum and takes out shell, remove shell after air cooling to room temperature, take out foundry goods.
6. method as claimed in claim 4, is characterized in that, in described directed solidification step, be evacuated to 10 -5pa, be warming up to 1580 DEG C ± 20 DEG C fusings, soaking time 30min, time of repose 30min, pull shell speed is 4-6mm/min.
7. method as claimed in claim 6, it is characterized in that, described pull shell speed is 4mm/min, 5mm/min or 6mm/min.
8. the method for claim 1, is characterized in that, containing following component in described master alloy ingot, by weight percentage: aluminium 5.75%, cobalt 5.0%, chromium 9.5%, molybdenum 4.0%, titanium 1.9%, tungsten 5.5%, rare earth element 0.2%, calcium 0.5-2.0%, inevitable impurity < 0.08%, surplus is nickel.
9. the method for claim 1, is characterized in that, containing following component in described master alloy ingot, by weight percentage: aluminium 5.75%, cobalt 9.0%, chromium 4.4%, molybdenum 2.0%, tantalum 7.2%, tungsten 8.0%, rhenium 2.0%, rare earth element 0.2%, calcium 0.5-2.0%, inevitable impurity < 0.08%, surplus is nickel.
10. method as claimed in claim 8 or 9, it is characterized in that, described rare earth element is yttrium or lanthanum.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107619957A (en) * 2017-08-31 2018-01-23 江西理工大学 A kind of method of stable Crystal Nickel-based Superalloy rare earth elements composition
CN113802030A (en) * 2021-10-14 2021-12-17 上海交通大学 Rare earth high-temperature alloy construction material and ultralimit precision casting method thereof

Citations (3)

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Publication number Priority date Publication date Assignee Title
US20040109786A1 (en) * 2002-12-06 2004-06-10 O'hara Kevin Swayne Nickel-base superalloy composition and its use in single-crystal articles
CN1680611A (en) * 2004-04-07 2005-10-12 联合工艺公司 Oxidation resistant superalloy and article
CN101528959A (en) * 2006-10-17 2009-09-09 西门子公司 Nickel-base superalloys

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040109786A1 (en) * 2002-12-06 2004-06-10 O'hara Kevin Swayne Nickel-base superalloy composition and its use in single-crystal articles
CN1680611A (en) * 2004-04-07 2005-10-12 联合工艺公司 Oxidation resistant superalloy and article
CN101528959A (en) * 2006-10-17 2009-09-09 西门子公司 Nickel-base superalloys

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107619957A (en) * 2017-08-31 2018-01-23 江西理工大学 A kind of method of stable Crystal Nickel-based Superalloy rare earth elements composition
CN107619957B (en) * 2017-08-31 2018-12-21 江西理工大学 A kind of method of rare earth elements in stable Crystal Nickel-based Superalloy
CN113802030A (en) * 2021-10-14 2021-12-17 上海交通大学 Rare earth high-temperature alloy construction material and ultralimit precision casting method thereof

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