WO2012039189A1 - Reが添加されたNi基2重複相金属間化合物合金及びその製造方法 - Google Patents
Reが添加されたNi基2重複相金属間化合物合金及びその製造方法 Download PDFInfo
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- WO2012039189A1 WO2012039189A1 PCT/JP2011/066466 JP2011066466W WO2012039189A1 WO 2012039189 A1 WO2012039189 A1 WO 2012039189A1 JP 2011066466 W JP2011066466 W JP 2011066466W WO 2012039189 A1 WO2012039189 A1 WO 2012039189A1
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D25/00—Special casting characterised by the nature of the product
- B22D25/06—Special casting characterised by the nature of the product by its physical properties
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- 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
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- the present invention relates to a Ni-based two-duplex intermetallic compound alloy to which Re is added and a method for producing the same.
- Ni-based superalloys and (2) Ni-based double-duplex intermetallic compounds as materials having excellent high-temperature characteristics is underway.
- the Ni-base superalloy (1) has a ⁇ phase (Ni solid solution phase) as a parent phase and a ⁇ ′ phase dispersed and precipitated in the parent phase, and the ⁇ ′ phase has a basic composition of Ni 3 Al. to an intermetallic compound (L1 2 phase), consisting of about 60 ⁇ 70 vol% in the constituent phase gamma 'phase.
- This alloy is being developed into a normal casting alloy, a unidirectionally solidified alloy, and a single crystal alloy.
- the single crystal alloy the first generation alloy, the second generation alloy containing about 3% by weight of Re, and 5 to 5 Re.
- Development is proceeding into 3rd generation alloys containing 6% by weight, 4th generation alloys containing 2 to 3% by weight of noble metals such as Ru, and 5th generation alloys containing 5 to 6% by weight of noble metals.
- Ni-based superalloy for unidirectionally solidified material it contains C, B, Hf, Co, Ta, Cr, W, Al, Re, and the remainder is made of Ni and inevitable impurities. Alloys are known (see, for example, Patent Document 1).
- This alloy contains Ti, Nb, V, Zr, etc. as optional components, and the addition amount of elements constituting the ⁇ phase of the parent phase and the ⁇ ′ phase of the precipitation phase, and the addition amount of elements that strengthen the grain boundaries By adjusting the strength, the strength in the solidification direction and the strength of the grain boundaries are improved.
- Ni-based single crystal superalloy balanced in both high-temperature strength and high-temperature oxidation resistance in practical use
- a Ni-based single crystal super-alloy containing Al, Ta, W, Re, Cr and Ru as main additive elements is used. Alloys are known (see, for example, Patent Document 2). This alloy is excellent by controlling the lattice constant of the parent phase ( ⁇ phase) and the lattice constant of the precipitation phase ( ⁇ 'phase) to optimum values by setting the composition ratio of the elements within the optimum range. Realizes high temperature strength (creep strength).
- Ni-base superalloys are developed from the viewpoints of high-temperature strength and casting in order to mainly use turbine blades such as jet engines, and elements preferable from these viewpoints are added to the composition.
- the Ni-base superalloy is composed of the ⁇ phase of the parent phase and the ⁇ ′ phase of the precipitation phase as explained above, but it is explained that Re is dissolved in the ⁇ phase (solid solution phase) to improve the creep strength.
- Re is dissolved in the ⁇ phase (solid solution phase) to improve the creep strength.
- Patent Documents 1 and 2 Further, it is described that Ta dissolves in the ⁇ phase together with W and the like, and a part thereof dissolves in the ⁇ ′ phase to improve the creep strength (for example, see Patent Document 2). Further, it is described that V is preferably 1% by weight or less because the high-temperature strength decreases (see, for example, Patent Documents 1 and 2).
- the Ni-base superalloy has limited melting point and high-temperature creep strength because about 30 to 40 vol% or more of the constituent phase is the ⁇ phase of the metal phase. Further, although development from the viewpoint of high-temperature strength is progressing, development from the viewpoint of hardness is not progressing.
- Ni-based double-duplex intermetallic compound alloy (2) As an alloy for solving such a problem, the development of the Ni-based double-duplex intermetallic compound alloy (2) is expected.
- This Ni-based two-phase intermetallic compound alloy is a multiphase alloy in which Ni 3 X-type intermetallic compounds belonging to a close-packed (Geometrically Closed Packed) crystal structure are combined in a consistent manner. It is composed of 3 Al intermetallic compound phase and Ni 3 V intermetallic compound phase.
- FIG. 17 is a view for explaining the structure of this Ni-based two-duplex intermetallic compound alloy.
- (1) is an example of a SEM photograph (Ni 75 Al 8 V 14.5 Nb 2.5 ) for explaining the structure of the Ni-based double phase intermetallic compound alloy, and (2) is the Ni-based double phase.
- crystal structure constituting the structure of the intermetallic alloy (Ni 3 Al, Ni 3 V ) is a schematic diagram of a.
- this Ni-based double-duplex intermetallic compound alloy is composed of a microstructure formed with good consistency and a nanostructure formed therebetween (see FIG. 17 (1)). Is composed of a proeutectoid L1 2 phase (Ni 3 Al shown in FIG. 17 (2)), and the latter nanostructure is an L1 2 phase and a D0 22 phase (Ni 3 Al and Ni shown in FIG. 17 (2)) 3 V).
- the Ni-based dual-phase intermetallic alloy is a heat treatment at a temperature higher than the eutectoid temperature, A1 phase (Ni solid solution phase) in the pro-eutectoid L1 2 phase upper duplex structure deposited is formed, subsequent co in precipitation temperature following thermal treatment, A1 phase eutectoid transformation to lower duplex structure in two phases L1 2 phase and D0 22 phase is formed is formed.
- the Ni-based two-duplex intermetallic compound alloy is formed by duplexing the Ni 3 X-type intermetallic compound having excellent characteristics. For this reason, this Ni-based double-duplex intermetallic compound alloy is expected as an alloy that exhibits even better characteristics than an alloy composed of a single intermetallic compound phase and has a wide range of structure control possibilities. (See Patent Document 3). For example, in addition to high-temperature strength, development is being promoted from the viewpoint of hardness.
- Ni is the main component
- Al, V, Ta and / or W, Nb, Co. , Cr, and B (Nb, Co, and Cr are optional components) are known (see Patent Document 4).
- Ni is the main component and includes Al, V, Nb, Ti, Co, Cr, and B (Nb, Ti, Co, Cr Is an Ni-based double-duplex intermetallic compound alloy in which the base material is surface-treated by at least one of nitriding and carburizing (see Patent Document 5).
- the Ni-based double-duplex intermetallic compound alloy as described in the background art exhibits excellent hardness, but improvement of its properties is desired.
- the content of Ta or the like is increased, excellent hardness is exhibited, but conversely, when the content of Al is decreased, sufficient hardness may not be obtained at a high temperature.
- second phase particles (dispersions) which are not preferable in strength characteristics may appear. For this reason, it is considered that there is a limit to the improvement of the hardness characteristics due to the content of Ta and the like.
- the hardness characteristics of the Ni-based double-duplex intermetallic compound alloy are improved. It is hoped to do.
- the present invention has been made in view of such circumstances, and provides a Ni-based double-duplex intermetallic compound alloy exhibiting excellent hardness.
- Ni is the main component and Al: 5 to 12 atomic%, V: 11 to 17 atomic%, Re: 1 to 5 atomic%, and the pro-eutectoid L1 2 phase and (L1 2 + D0 22 )
- a Ni-based dual-duplex intermetallic compound alloy having a dual-phase structure with a eutectoid structure is provided.
- a conventional Ni-based double-duplex intermetallic compound alloy contains an element (for example, Ta, Nb, Ti) that substitutes the X element of the Ni 3 X-type intermetallic compound.
- the Ni-based double-duplex intermetallic compound alloy contains an element that replaces the Ni element instead of the element that replaces the X element.
- Re for example, 3 atomic%
- a dual-phase intermetallic alloy can be obtained, and (2) the hardness of this alloy can be improved while heat-treating the Ni-based dual-duplex intermetallic alloy containing Re while maintaining the dual-phase structure.
- the present invention has been completed.
- a Ni-based double-duplex intermetallic compound alloy exhibiting excellent hardness is provided.
- the material is not hard, that is, after being processed in a state where it is easy to process (for example, cutting)
- the hardness can be improved by heat treatment, so Ni base 2 overlap that is excellent in workability (for example, cutting processability)
- a phase intermetallic alloy is provided.
- No. related to the comparative example. 1 and no. It is a SEM photograph of 2 samples. No. related to the comparative example. It is a SEM photograph of 3 samples. No. 1 according to the embodiment of the present invention. 4 and no. It is a SEM photograph of 5 samples.
- No. 1 was subjected to solution heat treatment and lower multiphase heat treatment.
- 5 is a diagram showing an X-ray diffraction profile of No. 5.
- No. 2 subjected to the lower multiphase heat treatment temperature: 1173K).
- 1-No. It is a graph which shows the relationship between the time of a lower double phase heat processing, and Vickers hardness about the sample of 5.
- FIG. No. 6-No. It is a graph which shows the relationship between the conditions of a lower double phase heat processing, and Vickers hardness about 12 samples.
- No. 1 was subjected to solution heat treatment. It is a SEM photograph of 4 samples.
- No. 1 was subjected to solution heat treatment. It is a SEM photograph of 5 samples.
- No. subjected to solution heat treatment It is a SEM photograph of 13 samples.
- No. 1 subjected to solution heat treatment and lower double-phase heat treatment (temperature: 1223K, time: 24 hours). It is a SEM photograph of 5 samples.
- No. 2 subjected to solution heat treatment and lower double-phase heat treatment (temperature: 1223K, time: 24 hours) according to the comparative example.
- SEM photograph for explaining the structure of a Ni-based dual multi-phase intermetallic compound alloy and crystal structure constituting the structure of the alloy (Ni 3 Al, Ni 3 V ) is a schematic diagram of a.
- the Ni-based double-duplex intermetallic alloy according to the present invention contains Ni as a main component and contains Al: 5 to 12 atomic%, V: 11 to 17 atomic%, and Re: 1 to 5 atomic%. It has a two- phase structure of L1 2 phase and (L1 2 + D0 22 ) eutectoid structure.
- This Ni-based double-duplex intermetallic compound alloy may further contain 10 to 1000 ppm by weight of B with respect to the total weight of the composition of a total of 100 atomic% including the contents of Ni, Al, V and Re.
- Ni is the main component
- Al 8 to 12 atomic%
- V 13 to 17 atomic%
- Re 1 to 5 atomic%
- It may be a Ni-based double-duplex intermetallic compound alloy.
- Even the embodiment containing 1 to 5 atomic% of Re may further include 10 to 1000 ppm by weight of B with respect to the total weight of the total composition of 100 atomic% containing the above contents of Ni, Al, V and Re.
- a Ni-based double-duplex intermetallic compound alloy capable of remarkably improving the hardness is provided. Further, this Ni-based double-duplex intermetallic compound alloy can remarkably improve the hardness while maintaining a fine double-duplex structure. In addition, since this Ni-based double-duplex intermetallic compound alloy exhibits remarkable hardness at the temperature of the heat treatment, it is also suitable for use at the temperature of the heat treatment, that is, at a high temperature.
- Heat treatment referred to here is, by transformation of the A1 phase formed in the gap between the pro-eutectoid L1 2 phase, a heat treatment for forming the L1 2 phase and D0 22 phase.
- This heat treatment includes an aging heat treatment (so-called artificial aging) as a treatment for promoting the formation of such a structure, and as a treatment for forming such a structure, a lower multiphase heat treatment (second process) described later is performed. 2 heat treatment).
- the heat treatment temperature is preferably 1073 to 1273K, more preferably 1098 to 1198K (1123K ⁇ 25K or 1173K ⁇ 25K).
- the heat treatment time is preferably 5 to 10 hours. Within this time range, for example, a Vickers hardness of about 660 HV can be realized by a heat treatment of 1148 to 1198K.
- this Ni-based double-duplex intermetallic compound alloy may further contain Ta.
- the Ni-based double-duplex intermetallic compound alloy contains Ta
- Ni is the main component
- Al 5 to 9 atomic%
- V 11 to 15 atomic%
- Ta 3 to 7 atomic%
- Re a Ni-based double-duplex intermetallic alloy containing 1 to 5 atomic%
- the embodiment containing Ta may further contain 10 to 1000 ppm by weight of B with respect to the total weight of the total composition of 100 atomic% including the contents of Ni, Al, V and Re.
- the hardness be remarkably improved by performing a heat treatment, but also a Ni-based double-duplex intermetallic compound alloy having excellent hardness even before the heat treatment is provided.
- the temperature of the heat treatment is preferably 1073 to 1273 K, and the time of the heat treatment is preferably 2 to 24 hours. With such heat treatment, better Vickers hardness (for example, about 780 HV) can be realized.
- the Ni-based double-duplex intermetallic compound alloy of this embodiment can remarkably improve the hardness while maintaining a fine double-duplex structure by heat treatment, and at a high temperature (for example, a temperature of 1073 to 1273 K). Suitable for use.
- the heat-resistant component may be formed of the Ni-based double-duplex intermetallic compound alloy of the present invention.
- the hardness of the Ni-based double-duplex intermetallic alloy of the present invention is improved at the temperature of the heat treatment, for example, 1073 to 1273K, as described above, Suitable for use at temperatures up to 1273K). Therefore, a heat-resistant component (for example, a heat-resistant bolt) formed of this Ni-based double-duplex intermetallic compound alloy has excellent hardness even at high temperatures.
- the present invention slowly cools a molten metal containing Ni as a main component and containing Al: 5 to 12 atomic%, V: 11 to 17 atomic%, and Re: 1 to 5 atomic%.
- a method for producing a Ni-based double-duplex intermetallic compound alloy is provided.
- the molten metal may contain Ni as a main component and Al: 8 to 12 atomic%, V: 13 to 17 atomic%, and Re: 1 to 5 atomic%.
- the molten metal may contain Ni as a main component and Al: 5 to 9 atomic%, V: 11 to 15 atomic%, Ta: 3 to 7 atomic%, and Re: 1 to 5 atomic%. .
- the molten metal has a content of Ni, Al, V, and Re, or 10 to 1000 weights with respect to a total weight of a composition of a total of 100 atomic% including the contents of Ni, Al, V, Re, and Ta. It may further contain ppm B.
- the production method of the present invention it is possible to produce a Ni-based double-duplex intermetallic compound alloy exhibiting excellent hardness.
- solution heat treatment at 1503 to 1603K may be performed after casting.
- the V element and the like form a solid solution to form the A1 phase (Ni solid solution phase) and the proeutectoid L1 2 phase is formed.
- a phase structure (a structure of proeutectoid L1 2 phase and (L1 2 + D0 22 ) eutectoid structure) is formed. For this reason, the manufacturing method of the Ni base 2 double phase intermetallic compound alloy provided with a fine and uniform 2 double phase structure is provided.
- solution heat treatment also serves as a step of performing heat treatment to an alloy and pro-eutectoid L1 2 phase and A1 phases are cast at a temperature coexist (upper dual-phase heat treatment referred to in this specification (first heat treatment)) It may also serve as a homogenization heat treatment.
- an aging heat treatment of 1073 to 1273 K may be performed after the solution heat treatment.
- a method for producing a Ni-based double-duplex intermetallic compound alloy that remarkably improves hardness while maintaining a fine double-duplex structure.
- the specific content (content) of Ni is preferably 70 to 74 at. %, More preferably 71 to 73 at. %. Within such a range, the sum of the content of (Ni, Re) and the content of (Al, V, Ta) is close to 3: 1, and a two-phase structure is likely to be formed.
- the specific content of Ni is, for example, 70, 70.5, 71, 71.5, 72, 72.5, 73, 73.5 or 74 at. %.
- the range of the Ni content may be between any two of the numerical values exemplified as the specific content.
- the specific content of Al is 5 to 12 at. %.
- the Ni-based two-duplex intermetallic alloy does not contain Ta, preferably 8-12 at. %, And more preferably 9 to 11 at. %.
- the Ni-based two-duplex intermetallic alloy contains Ta, preferably 5 to 9 at. %, More preferably 6-8 at. %.
- the range of the Al content may be between any two of the numerical values exemplified as the specific content.
- the specific content of V is 11 to 17 at. %.
- the Ni-based double-duplex intermetallic compound alloy does not contain Ta, preferably 13 to 17 at. %, And more preferably 14 to 16 at. %.
- the Ni-based two-duplex intermetallic compound alloy contains Ta, preferably 11 to 15 at. %, More preferably 12 to 14 at. %.
- the range of the content of V may be between any two of the numerical values exemplified as the specific content.
- the specific content of Re is 1 to 5 at. %, Preferably 2-4 at. %. For example, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5 or 5 at. %.
- the range of the Re content may be between any two of the numerical values exemplified as the specific content.
- the specific content of Ta is 3 to 7 at. %, Preferably 4 to 6 at. %. For example, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5 or 7 at. %.
- the range of the content of Ta may be between any two of the numerical values exemplified as the specific content.
- B is an optional component, but when the Ni-based double-duplex intermetallic compound alloy contains B, the specific content of B is 10 to 1000 ppm by weight. For example, 10, 50, 100, 150, 200, 250, 300, 350, 400, 450, 500, 550, 600, 650, 700, 750, 800, 850, 900, 950 or 1000 ppm by weight.
- the range of the B content may be between any two of the numerical values exemplified as the specific content.
- the specific content of B is 100 at. In total including Ni, Al, V, Re, Ta (Ta is optional). % Content with respect to the total weight of the composition.
- Ni-based double-duplex intermetallic compound alloy also has a structure similar to that of the Ni-based double-duplex intermetallic compound alloy shown in FIG.
- the Ni-based double-duplex intermetallic compound alloy of the present invention has a double-double phase structure of a pro-eutectoid L1 2 phase and a (L1 2 + D0 22 ) eutectoid structure.
- the pro-eutectoid L1 2 phase is a structure formed at a temperature higher than the eutectoid temperature (note that the structure comprising the pro-eutectoid L1 2 phase formed at a temperature higher than the eutectoid temperature and the A1 phase in the gap) Is called "upper multiphase structure").
- the (L1 2 + D0 22 ) eutectoid structure is composed of the L1 2 phase and the D0 22 phase formed by separating the A1 phase formed in the gap between the proeutectoid L1 2 phases at a temperature equal to or lower than the eutectoid temperature.
- a lower multiphase structure consisting of
- the temperature higher than the eutectoid temperature is a temperature at which the pro-eutectoid L1 2 phase and the A1 phase coexist, and the eutectoid temperature is the transformation (decomposition) of the A1 phase into the L1 2 phase and the D0 22 phase. ) Is the upper temperature limit.
- Ni-based double-duplex intermetallic alloy having such a structure is manufactured by the following manufacturing method.
- the metal ingot is weighed so that each element has the ratio explained above, and this is heated and dissolved. Next, it casts by cooling this molten metal.
- the molten metal in this casting is cooled by, for example, slow cooling. Doing slow cooling, molten metal will be the pro-eutectoid L1 2 phase and A1 phases are exposed relatively long time to temperatures coexisting after coagulation, also then, the A1 phase L1 2 phase and D0 22 phase It is also exposed to a temperature below the eutectoid temperature for separation for a long time. Therefore, the upper duplex structure consisting of the pro-eutectoid L1 2 phase and A1 phase is formed, further decomposed A1 phase, the lower duplex structure is formed consisting of the L1 2 phase and D0 22 phase.
- This slow cooling is performed by furnace cooling, for example. That is, the above material is heated and melted, and after the heating, the molten metal is left as it is in the furnace.
- Ni-based double-duplex intermetallic compound alloy having the above structure may be manufactured by performing a heat treatment after casting.
- a solution heat treatment at 1503 to 1603 K may be performed after casting (that is, a solution heat treatment of A1 single phase is performed) and then cooled to manufacture this Ni-based double-duplex intermetallic compound alloy.
- the pro-eutectoid L1 2 phase precipitates spontaneously, and then the A1 phase is decomposed into the L1 2 phase and the D0 22 phase to produce a Ni-based double-duplex intermetallic compound alloy.
- the first heat treatment at a temperature as described in Patent Documents 3 and 4 an alloy material obtained by the melting and solidification relative (such as ingot), and the pro-eutectoid L1 2 phase and A1 phases coexist was carried out (the formation of the upper duplex structure), after the first heat treatment, the A1 phase by cooling to decompose into a L1 2 phase and D0 22 phase (formation of the lower duplex structure), the Ni-based dual-phase Intermetallic compound alloys may be produced.
- an alloy material obtained by the melting and solidification relative (such as ingot), (formation of the upper duplex structure) performing a first heat treatment at a temperature at which coexist with proeutectoid L1 2 phase and A1 phase, then, Cooling to a temperature at which the L1 2 phase and the D0 22 phase coexist (natural cooling such as air cooling or furnace cooling or forced cooling such as water cooling), or by performing a second heat treatment at that temperature, the A1 phase (L1 2 + D0 22 )
- the Ni-based double-duplex intermetallic compound alloy may be produced by changing the eutectoid structure (formation of the upper double-phase structure).
- the first heat treatment is performed at a temperature of 1503 to 1603 K, for example, specifically at a temperature of 1503 K for about 5 to 200 hours.
- Heat treatment is performed.
- the second heat treatment is performed at a temperature of 1123 to 1273K, for example. Specifically, it is performed at a temperature of 1203 K for about 5 to 200 hours.
- a solution heat treatment at 1503 to 1603K may be performed after casting or after the first or (and) second heat treatment.
- the solution heat treatment is performed, for example, at a temperature of 1553 K for about 5 hours.
- Cooling after the solution heat treatment may be either natural cooling such as air cooling or forced cooling such as water cooling. For example, cooling by furnace cooling may be performed.
- the solution heat treatment may also serve as the first heat treatment or the homogenization heat treatment. Conversely, the first heat treatment or the homogenization heat treatment may also serve as the solution heat treatment.
- an aging heat treatment may be performed after casting, after the first or (and) the second heat treatment, or after performing a solution heat treatment in addition to these treatments.
- This aging heat treatment is performed in order to transform (decompose) the A1 phase formed in the gap between the pro-eutect L1 2 phase of the Ni-based double-duplex intermetallic compound alloy to form the L1 2 phase and the D0 22 phase. Therefore, it can be carried out by heat treatment in the same temperature range as the second heat treatment.
- the temperature of the aging heat treatment is preferably 1123 ⁇ 1273K.
- the aging heat treatment is also referred to as lower double-phase heat treatment (heat treatment for forming a lower double-phase structure).
- the atmosphere of the arc melting furnace was evacuated in the melting chamber and then replaced with an inert gas (argon gas).
- the electrode used was a non-consumable tungsten electrode, and a water-cooled copper hearth was used as the mold.
- no. 1-No. Samples 3 are comparative examples, and these are samples to which Re is not added (here, the name of the sample is a sample to which Ta is added in addition to the number such as “No. 1”.
- the character string combined with the content and the contained element “Ta” is also used as the name of the sample (for example, a sample containing 5 at. Ta is also called “5Ta”).
- No. 4 and no. Sample No. 5 is an example of the present invention and is a sample to which Re is added (sample names are the same as those in the case of Ta.
- Ta contains 5 at.%
- Re contains 3 at.%.
- the sample to be called is also referred to as “5Ta3Re”).
- the ratio of B in Table 1 is 100 at. In total including Ni, Al, V, and Nb. It is a numerical value for the composition of%.
- a test piece (about 10 mm ⁇ 5 mm ⁇ 1 mm) was cut out from the produced cast material (No. 1 to No. 5), and a solution was formed on the obtained test pieces (No. 1 to No. 5).
- a heat treatment a heat treatment of 1553 K ⁇ 5 hours was performed, and then the furnace was cooled.
- A1 single-phase structure was formed by this solution heat treatment, and a furnace was then cooled to form a two- duplex structure in which the pro-eutectoid L1 2 phase and the interstitial L1 2 phase and the D0 22 phase coexisted.
- test pieces No. 1 to No. 5
- test pieces No. 1 to No. 5
- the test pieces were subjected to 5, 10 and 24 hours at a temperature of 1173K, 2, 5, at a temperature of 1223K.
- Lower multiphase heat treatment was performed under conditions of 10 and 24 hours, and water quenching was performed.
- FIGS. 1 and 2 show No. 1 according to the comparative example.
- 1-No. 3 (5Ta, 6Ta, 6.5Ta) is a SEM photograph of the sample
- FIG. 4 (3Re) and No. 4 It is a SEM photograph of a sample of 5 (5Ta3Re).
- Solution material is described in the photograph of the sample subjected to only the solution heat treatment.
- “-A” and the conditions (conditions in Table 2) are described after the symbol.
- FIGS. 1-No. 3 the sample subjected only to the solution heat treatment, in addition to the region where the two-duplex phase structure is formed, in FIG. 1-A and (4) No. 2-A and FIG. It can be seen that there are also fine tweed-like regions as shown in 3-A. In particular, no. In the sample (FIG. 2 (1) No. 3-A) subjected to only solution heat treatment of 3 (6.5 Ta), a tweed structure having fourfold symmetry was observed. This is considered due to an increase in the amount of Ta added.
- samples subjected to lower multiphase heat treatment in addition to solution heat treatment are basically only subjected to solution heat treatment.
- Sample 2 (5Ta, 6Ta) (FIG. 1 (3) No. 1-C and (6) No. 2-C) shows that the four-fold symmetry of the tweed structure tends to be broken.
- No. 2 subjected to lower multiphase heat treatment. 3 (6.5 Ta) samples (FIG. 2 (2) No. 3-B and (3) No. 3-C) were also confirmed to have a coarse plate-like second phase that was newly formed. .
- FIG. 1 When comparing 4-A with FIG. 17 (1), FIG.
- the 4-A cubic (cube-like) structure has a side length of approximately half or less than the double-phase structure of (Ni 75 Al 8 V 14.5 Nb 2.5 ) in FIG. That is, it can be seen that the tissue size of each sample shown in FIG. 3 is a fraction of that of FIG. (For example, the sample of FIG.
- FIG. 4 (3Re) and No. 4 5 (5Ta3Re) samples, particularly samples subjected to lower multiphase heat treatment in addition to solution heat treatment (FIG. 3 (2) No. 4-B, (3) No. 4-C, (5) No. 5). It can be seen that 5-B and (6) No. 5-C) are interestingly formed with an ultrafine two-phase structure regardless of the presence or absence of Ta.
- FIG. 4 shows No. 1 subjected to solution heat treatment and lower double-phase heat treatment. It is a figure which shows the X-ray-diffraction profile of 5 (5Ta3Re).
- graphs (a) to (e) show X-ray diffraction profiles of the respective heat treatments, and (a) shows a sample (condition A in Table 2) subjected to only the solution heat treatment, (b) Each of (e) corresponds to a sample (condition C in Table 2) that has been subjected to lower multiphase heat treatment in addition to solution heat treatment.
- the lower multiphase heat treatment times of (b) to (e) are 2 hours for (b), 5 hours for (c), 10 hours for (d), and 24 hours for (e).
- circle (black ⁇ mark) indicates the position of the X-ray diffraction peaks of the L1 2 phase (Ni 3 Al), triangle (gray ⁇ mark), the D0 22 phase (Ni 3 V) shows the position of the X-ray diffraction peak.
- Tables 3 and 4 show the measurement results.
- Table 3 is a table showing the Vickers hardness of the sample subjected to the lower double-phase heat treatment at a temperature of 1173K
- Table 4 is a table showing the Vickers hardness of the sample subjected to the lower double-phase heat treatment at a temperature of 1223K. is there.
- FIG. 5 and 6 are graphs of the measurement results of Tables 3 and 4. These figures are No. 1 subjected to lower multiphase heat treatment. 1-No. It is a graph which shows the relationship between the time of a lower double phase heat processing, and Vickers hardness about the sample of 5.
- FIG. 5 corresponds to the lower double-phase heat treatment (condition B shown in Table 2) at a temperature of 1173 K
- FIG. 6 corresponds to the lower double-phase heat treatment (condition C shown in Table 2) at a temperature of 1223 K, respectively.
- the Vickers hardness of the sample subjected only to the solution heat treatment is shown on the left end axis.
- no. Samples of 4 (3Re) can be obtained in a short time (5 to 10 hours or within 5 hours, that is, 1.8 ⁇ 10 4 to 3.6 ⁇ 10 4 seconds or 1.8) in both lower multiphase heat treatments of 1173K and 1223K.
- the hardness increases remarkably within 10 4 seconds), and is particularly noticeable in the lower multiphase heat treatment at 1173K.
- no. 4 (3Re) sample is subjected to lower multiphase heat treatment at a temperature of 1173 K for 5 to 10 hours (1.8 ⁇ 10 4 to 3.6 ⁇ 10 4 seconds), and thereby has a hardness of about 660 HV.
- This hardness is no. 1-No. It is superior to the sample of 3 (5Ta, 6Ta, 6.5Ta). From this experimental result, it is understood that the lower multiphase heat treatment for the sample to which Re is added is preferably 1173 K rather than 1223 K, and the treatment time is preferably 5 to 10 hours.
- the sample of 5 shows a high value of 660 HV even when only the solution heat treatment is performed, but the value increases remarkably in a short lower multi-phase heat treatment and shows a value exceeding 800 HV.
- the time of the lower double-phase heat treatment at which the value of Vickers hardness becomes the maximum value varies depending on the temperature, the lower double-phase heat treatment of 1173K and 1223K reaches a value exceeding 800 HV (the value of Vickers hardness is 140-150HV rises). From this experimental result, it can be seen that the lower multiphase heat treatment for the sample to which Re and Ta are added is preferably performed at any temperature of 1173K and 1223K, and the treatment time may be a short time (from 2 hours).
- the sample of 5 has a tendency to slightly decrease its hardness when the lower multi-phase heat treatment takes a long time, and slightly lower than 800 HV (780 to 790 HV) after 24 hours of lower multi-phase heat treatment. Although it is slight compared with the highest value of hardness, the value is decreasing (decreasing by about 10 HV at 1173K and decreasing by about 20 HV at 1223K).
- No. 2 was subjected to the lower multiphase heat treatment.
- No. 5 (5Ta3Re) sample shows a value close to 800 HV.
- 1-No. 3 (5Ta, 6Ta, 6.5Ta), it can be seen that the hardness is superior to the samples of any heat treatment conditions. Even if the sample was only subjected to solution heat treatment, its hardness was No. 1-No. 3 (5Ta, 6Ta, 6.5Ta) samples.
- the hardness of the 5 (5Ta3Re) sample is excellent.
- the Ni-based double-duplex intermetallic compound alloy described in Patent Document 4 has a value in the vicinity of 500 to 650 HV, no.
- the Vickers hardness of the sample of 5 (5Ta3Re) exceeds the alloy of this patent document by about 100 HV or more, and it can be understood that the hardness is astonishing.
- the plasma carburized Ni-based double-duplex intermetallic compound alloy of Patent Document 5 has a hardness of 800 HV level in its surface layer (several tens of microns on the surface).
- the sample of 5 (5Ta3Re) has a hardness comparable to that of the entire sample. Thus, no.
- the sample of 5 (5Ta3Re) shows excellent hardness characteristics.
- No. 6-No. A cast material was prepared by melting and solidifying Ni, Al, V, Ta, and Re ingots (purity 99.9% by weight) and B in the proportions shown in FIG. No. 6-No. Eleven samples were melted and cast by the arc melting method in the same manner as in the demonstration experiment 1 to prepare ingots (small button-like alloys having a diameter of 30 to 50 mm ⁇ ). No. Twelve samples were cast by ceramic molding to produce ingots (diameter: about 16.5 mm ⁇ ⁇ length: about 150 mm).
- the cast materials (No. 6 to No. 11) produced by the arc melting method were subjected to a solution heat treatment for 1553 K ⁇ 5 hours, and then cooled with water.
- No. Sample No. 12 is slowly cooled when cast by the ceramic mold method, and has a temperature at which the pro-eutectoid L1 2 phase and the A1 phase coexist and a eutectoid temperature at which the A1 phase separates into the L1 2 phase and the D0 22 phase. Because it has been exposed to temperature for a long time, The solution heat treatment for 12 samples was omitted (hereinafter, the sample without solution heat treatment is referred to as a post-cast sample).
- the produced cast material was sliced by EDM (electric discharge machining) to produce a test piece (about 10 mm ⁇ 5 mm ⁇ 1 mm). Then, in order to investigate the influence of the lower multi-phase heat treatment, a part of the obtained test pieces (No. 6 to No. 12) was subjected to a lower multi-phase heat treatment at a temperature of 1123 K for 5 hours or a temperature of 1223 K. The lower multiphase heat treatment for 5 hours was performed, followed by water quenching. Thus, a sample subjected only to solution heat treatment (No. 12 sample is a sample after casting), and a sample subjected to solution heat treatment and lower multi-phase heat treatment (No. 12 sample is only lower multi-phase heat treatment). Applied sample).
- Table 6 shows the measurement results. Table 6 is a table showing the conditions of each heat treatment and the Vickers hardness of the sample subjected to the heat treatment.
- FIG. 7 shows a graph summarizing the measurement results of the Vickers hardness test.
- 7 is a graph of the measurement results in Table 6. 6-No. It is a graph which shows the relationship between the conditions of a lower double phase heat processing, and Vickers hardness about 12 samples.
- “After solution heat treatment / after casting” on the horizontal axis shows the case where only solution heat treatment was performed (No. 6 to No. 12 samples indicate the state after casting).
- “1123-5h” or “1223-5h” indicates a case where after the solution heat treatment, lower multiphase heat treatment is further performed at a temperature of 1123 K for 5 hours or at a temperature of 1223 K for 5 hours.
- these Re-added samples are samples in which only Ta is added to Ni, Al, V and B. It can be seen that the Vickers hardness is equal to or higher than (No. 9 and No. 10).
- samples to which Ta and Re are added No. 11 (5Ta5Re) and No. 12 (5Ta3Re) samples
- these Re-added samples are only samples (No. 6) to which Re is not added and Ta. It can be seen that the value of the Vickers hardness is increased by performing the lower double-phase heat treatment, unlike the samples to which No is added (No. 9 and No. 10). The value of the Vickers hardness is increased by the lower double-phase heat treatment at any temperature. In particular, in the case of the lower double-phase heat treatment of 1123 K, the Vickers hardness is greatly increased in any sample to which Re is added. It is high. In addition, in the case of samples to which Ta and Re are added (No. 11 and No. 12), it can be seen that the Vickers hardness tends to increase in any lower multiphase heat treatment at any temperature.
- FIGS. 8 to 16 are the same as those shown in FIG. 4, no. 5 and no. It is a SEM photograph of 13 samples.
- FIGS. 8 to 10 are samples subjected to solution heat treatment
- FIGS. 11 to 13 are samples subjected to solution heat treatment and lower multiphase heat treatment (temperature: 1223K, time: 2 hours)
- FIG. 14 to 16 are photographs of samples subjected to solution heat treatment and lower multiphase heat treatment (temperature: 1223K, time: 24 hours).
- (1) and (2) are secondary electron images (SEI)
- (3) and (4) are reflected electron composition images (COMPO: compositional image).
- (1) and (3) are photographs at a magnification of 5000 times
- (2) and (4) are photographs at a magnification of 25000 times.
- FIGS. 14 to 16 it can be seen that the same phenomenon as in FIGS. 11 to 13 is observed. Even if the processing time of the lower multiphase heat treatment (temperature: 1223K) is extended from 2 hours to 24 hours, In the sample No. 13, the structure hardly changed, but the sample to which Re was added, that is, No. 13 sample. 4 and no. Sample 5 shows that the second phase (acicular particles) observed in FIGS. 11 to 13 can be observed more clearly when the processing time of the lower multiphase heat treatment (temperature: 1223 K) is extended (acicular particles). Is coarsened).
- an Ni-based intermetallic compound alloy exhibiting excellent hardness is provided. Further, this Ni-based intermetallic compound alloy is improved in hardness by aging heat treatment, and exhibits excellent hardness even at high temperatures. For this reason, this Ni-based intermetallic alloy is also useful as a material for high-temperature mechanical structures such as heat-resistant bolts, jet engines, and gas turbines.
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Abstract
Description
この合金は、Ti,Nb,V,Zr等を任意の成分とし、母相のγ相と析出相のγ’相とを構成する元素の添加量と、結晶粒界を強化する元素の添加量を調整することにより、凝固方向の強度と結晶粒界の強度を改善する。
この合金は、その元素の組成比を最適な範囲に設定することにより、母相(γ相)の格子定数と析出相(γ’相)の格子定数とを最適な値に制御して優れた高温強度(クリープ強度)を実現する。
そして、鋭意研究をした結果、(1)Ni,Al,Vを含むNi基2重複相金属間化合物合金にRe(例えば、3原子%)を含有させることにより、微細な組織を有するNi基2重複相金属間化合物合金が得られること、及び(2)Reを含有するNi基2重複相金属間化合物合金に熱処理を行うことにより2重複相組織を維持したまま、この合金の硬さを向上させることができること、を見出し、本発明の完成に到った。
本発明によれば、優れた硬さを示すNi基2重複相金属間化合物合金が提供される。
また、素材が硬くない、すなわち加工(例えば、切削加工)しやすい状態で加工した後、熱処理により硬さを向上させることができるので、加工性(例えば、切削加工性)に優れるNi基2重複相金属間化合物合金が提供される。
また、このNi基2重複相金属間化合物合金は、上記熱処理の温度で著しい硬さを示すので、上記熱処理の温度、すなわち、高温での使用にも適する。
この熱処理の温度は、上記実施形態の場合、好ましくは1073~1273Kであり、より好ましくは1098~1198K(1123K±25K又は1173K±25K)である。これら温度範囲であれば、この合金の硬さを著しく向上させることができ、また、硬さを維持した状態で、このNi基2重複相金属間化合物合金を用いることができる。
なお、熱処理の時間は、好ましくは5~10時間である。この時間範囲であれば、例えば、1148~1198Kの熱処理で約660HVのビッカース硬さを実現できる。
ここで、この実施形態の場合、前記熱処理の温度は、好ましくは1073~1273Kであり、熱処理の時間は、好ましくは、2~24時間である。このような熱処理であれば、より優れたビッカース硬さ(例えば約780HV)を実現できる。
また、この実施形態のNi基2重複相金属間化合物合金も熱処理により微細な2重複相組織を維持したままで硬さを著しく向上させることができ、高温(例えば、1073~1273Kの温度)での使用に適する。
また、本発明の製造方法の実施形態において、前記溶湯が、Niを主成分とし、かつAl:8~12原子%、V:13~17原子%、Re:1~5原子%を含んでもよいし、また、前記溶湯が、Niを主成分とし、かつAl:5~9原子%、V:11~15原子%、Ta:3~7原子%、Re:1~5原子%を含んでもよい。さらに、前記溶湯が、前記含有量のNi、Al、V及びRe又は、前記含有量のNi、Al、V、Re及びTaを含む合計100原子%の組成の合計重量に対して10~1000重量ppmのBをさらに含んでもよい。
以下、これらの実施形態の各元素について詳述する。
Niの具体的な含有量は,例えば70,70.5,71,71.5,72,72.5,73,73.5又は74at.%である。Niの含有量の範囲は,上記具体的な含有量として例示した数値の何れか2つの間であってもよい。
例えば5,5.5,6,6.5,7,7.5,8,8.5,9,9.5,10,10.5,11,11.5又は12at.%である。Alの含有量の範囲は,上記具体的な含有量として例示した数値の何れか2つの間であってもよい。
例えば11,11.5,12,12.5,13,13.5,14,14.5,15,15.5,16,16.5又は17at.%である。Vの含有量の範囲は,上記具体的な含有量として例示した数値の何れか2つの間であってもよい。
よい。
また、第2熱処理は、例えば、1123~1273Kの温度で行う。具体的には、1203Kの温度で、5~200時間程度行う。
なお、この明細書において、時効熱処理を下部複相熱処理(下部複相組織を形成させる熱処理)ともいう。
次に、効果実証実験1について説明する。以下の実験では,鋳造材を作製し、(1)溶体化熱処理、(2)溶体化熱処理及び下部複相熱処理(上記の時効熱処理に相当する)を施して、(1)又は(2)の条件のNi基2重複相金属間化合物合金をそれぞれ作製し、作製された合金について、SEM組織観察、硬さ測定、X線測定を行い、その特性を調べた。
まず、表1のNo.1~No.5に示す割合のNi,Al,V,Ta,Reの地金(それぞれ純度99.9重量%)及びBをアーク溶解炉内の鋳型中で溶解、凝固することによって鋳造材(30~50mmφの小型ボタン状の合金)を作製した。
また、表1において、No.4及びNo.5の試料が本発明の実施例であり、Reが添加されている試料である(試料の名称は、上記Taの場合と同様である。例えば、Taを5at.%、Reを3at.%含有する試料は、「5Ta3Re」とも呼ぶ。)。
なお、表1におけるBの割合は、Ni,Al,V,Nbを含む合計100at.%の組成に対する数値である。
なお、この溶体化熱処理によってA1単相組織化を行い、その後の炉冷で、初析L12相および間隙のL12相とD022相とが共存する2重複相組織を形成させた。
次に、溶体化熱処理・下部複相熱処理の熱処理された試料について、SEMによる組織観察を行った。図1~図3にその写真を示す。図1及び図2が、比較例に係るNo.1~No.3(5Ta,6Ta,6.5Ta)の試料のSEM写真であり、図3が本発明の実施例に係るNo.4(3Re)及びNo.5(5Ta3Re)の試料のSEM写真である。
これらの図において、溶体化熱処理のみ施された試料の写真に「溶体化材」と記載し、また試料No.の後ろに「―A」と、その条件(表2の条件)を記載している。また、溶体化熱処理に加えて下部複相熱処理が施された試料の写真に、「1173K-10h」「1223K-10h」と下部複相熱処理の条件を記載している。さらに、試料No.の後ろに「―B」又は「―C」と、その条件(表2の条件)を記載している。
特に、No.3(6.5Ta)の溶体化熱処理のみ施された試料(図2(1)No.3-A)は、4回対称性を持つツイード状組織が観察された。これは、Ta添加量が増加したことによるものと考えられる。
また、図3(1)No.4-Aと図17(1)を比較すると、図3(1)No.4-Aの立方体状(キューブ状)の組織は、その辺の長さが図17(1)の(Ni75Al8V14.5Nb2.5)の2重複相組織のおよそ半分以下である。すなわち、図3に示される各試料の組織の大きさは、図17のそれと比較して数分の1の大きさであることがわかる。(例えば、図17の試料は、辺の長さが1~2μmからなる立方体の組織を有するのに対し、図3(1)No.4-Aの試料は、辺の長さが0.3~0.5μmからなる立方体の組織を有する。)このように、No.4(3Re)及びNo.5(5Ta3Re)の試料は、特許文献3~5に記載された2重複相組織よりも、微細な2重複相組織で形成されていることが理解できる。
次に、これらの試料について、X線測定を行った。図4に、No.5(5Ta3Re)の試料の測定結果を示す。図4は、溶体化熱処理及び下部複相熱処理が施されたNo.5(5Ta3Re)のX線回折プロファイルを示す図である。
図4において、(a)~(e)のグラフは、各熱処理のX線回折プロファイルを示し、(a)は、溶体化熱処理のみ施された試料(表2の条件A)に、(b)~(e)は、溶体化熱処理に加えて下部複相熱処理が施された試料(表2の条件C)に、それぞれ対応している。(b)~(e)の下部複相熱処理の時間は、(b)が2時間、(c)が5時間、(d)が10時間、(e)が24時間である。また、図4において、丸印(黒色の○印)は、L12相(Ni3Al)のX線回折ピークの位置を示し、三角印(グレーの△印)は、D022相(Ni3V)のX線回折ピークの位置を示している。
正確な解析には、TEM(透過電子顕微鏡)による調査が必要であるが、この結果から、No.5は、L12相とD022相とで構成されていることがわかる。
次に、溶体化熱処理・下部複相熱処理の熱処理された試料について、ビッカース硬さ試験を行った。ビッカース硬さは、荷重300g、500gまたは1kg、保持時間20秒で測定し、その測定は、室温の25℃で行った。表3及び表4にその測定結果を示す。
表3は、1173Kの温度の下部複相熱処理を施した試料のビッカース硬さを示す表であり、表4は、1223Kの温度の下部複相熱処理を施した試料のビッカース硬さを示す表である。
また、特許文献5のプラズマ浸炭したNi基2重複相金属間化合物合金はその表面層(表面の数十ミクロン)で800HVレベルの硬さであるが、No.5(5Ta3Re)の試料は、試料全体がこれに匹敵する硬さである。このように、No.5(5Ta3Re)の試料が優れた硬さ特性を示している。
次に、効果実証実験2を行った。効果実証実験2では,鋳造材を作製し、鋳造材に溶体化熱処理及び下部複相熱処理(上記の時効熱処理に相当する)を施してNi基2重複相金属間化合物合金を作製し、作製された合金について、硬さ測定を行って、その特性を調べた。
No.6~No.11の試料は、効果実証実験1と同様にアーク溶解法により溶解、鋳造してインゴット(直径30~50mmφの小型ボタン状の合金)を作製した。また、No.12の試料は、セラミックモールド法により、鋳造してインゴット(直径約16.5mmφ×長さ約150mm)を作製した。
また、表5におけるBの割合は、表1の効果実証実験1と同様にNi,Al,V,Nbを含む合計100at.%の組成に対する数値である。
なお、No.12の試料は、セラミックモールド法で鋳造するときに徐冷され、初析L12相とA1相とが共存する温度及びA1相がL12相とD022相とに分離する共析温度以下の温度に長い時間さらされているので、No.12の試料に対する上記溶体化熱処理は省略した(以下、溶体化熱処理を省略した試料を鋳造後試料という)。
次に、効果実証実験1の溶体化熱処理及び下部複相熱処理について、試料の組織への影響を詳細に観察するため、効果実証実験1と同様の方法で作製したNo.4及びNo.5について、その組織観察を行った。
Claims (10)
- Niを主成分とし、かつ
Al:5~12原子%、V:11~17原子%、Re:1~5原子%を含み、
初析L12相と(L12+D022)共析組織との2重複相組織を有するNi基2重複相金属間化合物合金。 - Niを主成分とし、かつ
Al:8~12原子%、V:13~17原子%、Re:1~5原子%を含む請求項1に記載のNi基2重複相金属間化合物合金。 - Niを主成分とし、かつ
Al:5~9原子%、V:11~15原子%、Ta:3~7原子%、Re:1~5原子%を含む請求項1に記載のNi基2重複相金属間化合物合金。 - 前記含有量のNi、Al、V及びRe又は、前記含有量のNi、Al、V、Re及びTaを含む合計100原子%の組成の合計重量に対して10~1000重量ppmのBをさらに含む請求項1~3のいずれか1つに記載のNi基2重複相金属間化合物合金。
- Niを主成分とし、かつ
Al:5~12原子%、V:11~17原子%、Re:1~5原子%を含む溶湯を徐冷して鋳造するNi基2重複相金属間化合物合金の製造方法。 - 鋳造後、1503~1603Kの溶体化熱処理を行う請求項5に記載のNi基2重複相金属間化合物合金の製造方法。
- 溶体化熱処理後、1073~1273Kの時効熱処理を行う請求項6に記載のNi基2重複相金属間化合物合金の製造方法。
- 前記溶湯が、Niを主成分とし、かつ
Al:8~12原子%、V:13~17原子%、Re:1~5原子%を含む請求項5~7のいずれか1つに記載のNi基2重複相金属間化合物合金の製造方法。 - 前記溶湯が、Niを主成分とし、かつ
Al:5~9原子%、V:11~15原子%、Ta:3~7原子%、Re:1~5原子%を含む請求項5~7のいずれか1つに記載のNi基2重複相金属間化合物合金の製造方法。 - 前記溶湯が、前記含有量のNi、Al、V及びRe又は、前記含有量のNi、Al、V、Re及びTa、を含む合計100原子%の組成の合計重量に対して10~1000重量ppmのBをさらに含む請求項5~9のいずれか1つに記載のNi基2重複相金属間化合物合金の製造方法。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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JP2012534955A JP5757507B2 (ja) | 2010-09-24 | 2011-07-20 | Reが添加されたNi基2重複相金属間化合物合金及びその製造方法 |
US13/823,849 US9169540B2 (en) | 2010-09-24 | 2011-07-20 | Re-added Ni-based dual multi-phase intermetallic compound alloy and method for producing the same |
EP11826635.2A EP2620514A4 (en) | 2010-09-24 | 2011-07-20 | TWO-PHASE INTERMETALLIC NICKEL-BASED ALLOY ALLOY WITH RHENIUM ADDITION AND MANUFACTURING METHOD THEREFOR |
CN201180045794.8A CN103154287B (zh) | 2010-09-24 | 2011-07-20 | 添加铼的镍基二元多相金属间化合物合金及其生产方法 |
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EP (1) | EP2620514A4 (ja) |
JP (1) | JP5757507B2 (ja) |
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WO2012133412A1 (ja) * | 2011-03-29 | 2012-10-04 | 公立大学法人大阪府立大学 | 摩擦攪拌加工用ツール及びこれを用いた摩擦攪拌加工方法 |
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CN112609119B (zh) * | 2020-12-17 | 2021-08-10 | 湘潭大学 | 一种同时含高熔点低沸点元素的Al-Re-Nb三元合金及其制备方法 |
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- 2011-07-20 US US13/823,849 patent/US9169540B2/en not_active Expired - Fee Related
- 2011-07-20 JP JP2012534955A patent/JP5757507B2/ja not_active Expired - Fee Related
- 2011-07-20 WO PCT/JP2011/066466 patent/WO2012039189A1/ja active Application Filing
- 2011-07-20 CN CN201180045794.8A patent/CN103154287B/zh not_active Expired - Fee Related
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Publication number | Publication date |
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CN103154287A (zh) | 2013-06-12 |
JPWO2012039189A1 (ja) | 2014-02-03 |
EP2620514A4 (en) | 2016-08-17 |
US20130189149A1 (en) | 2013-07-25 |
EP2620514A1 (en) | 2013-07-31 |
JP5757507B2 (ja) | 2015-07-29 |
CN103154287B (zh) | 2015-07-22 |
US9169540B2 (en) | 2015-10-27 |
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