CN106868370A - A kind of oxidation resistant niobium alloy powder formula - Google Patents
A kind of oxidation resistant niobium alloy powder formula Download PDFInfo
- Publication number
- CN106868370A CN106868370A CN201710070957.7A CN201710070957A CN106868370A CN 106868370 A CN106868370 A CN 106868370A CN 201710070957 A CN201710070957 A CN 201710070957A CN 106868370 A CN106868370 A CN 106868370A
- Authority
- CN
- China
- Prior art keywords
- melting
- alloy powder
- niobium alloy
- oxidation resistant
- powder formula
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910001257 Nb alloy Inorganic materials 0.000 title claims abstract description 21
- 230000003647 oxidation Effects 0.000 title claims abstract description 12
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 12
- 235000020610 powder formula Nutrition 0.000 title claims abstract description 11
- 239000010955 niobium Substances 0.000 claims abstract description 7
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 4
- 229910052742 iron Inorganic materials 0.000 claims abstract description 4
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 4
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 4
- 229910052715 tantalum Inorganic materials 0.000 claims abstract description 4
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 4
- 238000002844 melting Methods 0.000 claims description 20
- 230000008018 melting Effects 0.000 claims description 20
- 238000010894 electron beam technology Methods 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 238000003723 Smelting Methods 0.000 claims description 8
- 238000004458 analytical method Methods 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 3
- 239000000470 constituent Substances 0.000 claims description 2
- 239000000843 powder Substances 0.000 abstract description 16
- 238000000034 method Methods 0.000 abstract description 7
- 238000007493 shaping process Methods 0.000 abstract description 7
- 238000009826 distribution Methods 0.000 abstract description 5
- 239000002245 particle Substances 0.000 abstract description 4
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052760 oxygen Inorganic materials 0.000 abstract description 3
- 239000001301 oxygen Substances 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000000956 alloy Substances 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 229910052758 niobium Inorganic materials 0.000 description 3
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910001182 Mo alloy Inorganic materials 0.000 description 1
- 229910001080 W alloy Inorganic materials 0.000 description 1
- 230000003026 anti-oxygenic effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000295 emission spectrum Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000002354 inductively-coupled plasma atomic emission spectroscopy Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
- C22C27/02—Alloys based on vanadium, niobium, or tantalum
-
- B22F1/0003—
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a kind of oxidation resistant niobium alloy powder formula, by percentage to the quality, each component content is：Nb >=99.8%, C≤0.01%, H≤0.01%, Fe≤0.015%, Cr≤0.001%, Ni≤0.001%, Mn≤0.0004%, Na≤0.0004%, K≤0.0004%, Mg≤0.002%, Ca≤0.001%, Si≤0.005%, Mo≤0.01%, Ta≤0.012%, W≤0.01%, Al≤0.003%.The powder of niobium alloy powder prepared by the present invention is comparatively fine, up to 45 75 μm；Good fluidity, sphericity >=95%；Apparent density is higher, up to 70%；Powder particle specific surface area 0.102cm2/ g, size distribution is also narrow；Oxygen content is low, ＜ 700ppm.It is widely portable to the processing of rapid laser-shaping technique.
Description
Technical field
Match somebody with somebody the present invention relates to a kind of metallurgical powder formula, especially a kind of metallurgical powder suitable for laser fast shaping
Side, the metallurgical powder is in high temperature with very excellent inoxidizability.
Background technology
Niobium alloy is the alloy for adding other elements composition as base with niobium.Because niobium belongs to refractory metal, and fusing point is 2467
DEG C, specific strength is high in 1093~1427 DEG C of temperature ranges.Compared with tungsten alloy and molybdenum alloy, niobium alloy plasticity is good, processing and
Welding performance is excellent, thus the part with complex contour that can laminate, and can be used as space flight and the thermal protection of aircraft industry and knot
Structure material.High temperature alloy is mainly used in high-performance enginer, and in the modern advanced aero-engine, high-temperature alloy material makes
Consumption accounts for the 40%~60% of engine gross mass.Temperature in use of the development of modern high performance aero-engine to high temperature alloy
With the requirement more and more higher of performance.Traditional ingot metallurgy technical cooling speed is slow, some elements and the second phase segregation in ingot casting
Seriously, hot-working character is poor, uneven microstructure, unstable properties.
The high-temperature oxidation resistance of niobium is very poor, and rapid oxidation is begun at 600 DEG C or so.Although developing as WC-3015
(Nb-15, W-4, Ta-28, Hf-2, Zr-0.1C) such high-strength niobium alloy with certain antioxygenic property, but far from
Meet actual requirement, still need to be protected by high-temperature oxidation resistant coating.
Electron-beam process is that the advanced technologies such as CAD, CAM, CNC, laser, elaborate servo driving and new material is integrated
A kind of brand-new manufacturing technology.Have compared with classical production process：The replicability of prototype, interchangeability are high；Manufacturing process and manufacture
The geometry of prototype is unrelated；Process-cycle is short, low cost, general manufacturing expense reduction by 50%, the process-cycle shorten 70% with
On；Height Integration ofTechnology, realizes integrated manufacturing system (IMS).And rapid laser-shaping technique turns into solution in high temperature alloy shaping
The new method of technical bottleneck.So far, there is not the niobium alloy powder for being applicable to laser fast shaping also.
In order to overcome disadvantages described above, the technical problem to be solved in the present invention to be：Propose that a kind of quality is high, process costs are low,
Production efficiency is high, be applicable to laser fast shaping and the niobium alloy powder formula with excellent inoxidizability.
The content of the invention
It is an object of the invention to provide a kind of oxidation resistant niobium alloy powder formula, to solve to be carried in above-mentioned background technology
The problem for going out.
To achieve the above object, the present invention provides following technical scheme：
A kind of oxidation resistant niobium alloy powder formula, by percentage to the quality, each component content is：Nb >=99.8%, C≤
0.01%, H≤0.01%, Fe≤0.015%, Cr≤0.001%, Ni≤0.001%, Mn≤0.0004%, Na≤
0.0004%, K≤0.0004%, Mg≤0.002%, Ca≤0.001%, Si≤0.005%, Mo≤0.01%, Ta≤
0.012%, W≤0.01%, Al≤0.003%.
As further scheme of the invention：It is obtained by following steps：
Screening raw metal and removal of impurities, electron beam furnace are preheated, will then be difficult volatilized metal raw material and be placed in electricity
In beamlet smelting furnace, bombardment melting is carried out under regulation electron gun line 1000-2000mA, smelting time is 20-40min, melting
Temperature is 1900-2200 DEG C；Melting is cooled down after terminating, and carries out the analysis and adjustment of constituent content, and mixing adds volatile metal
Raw material, then carries out vacuum consumable electrode arc furnace melting, and the wherein electric current of first time melting is 2.3-3.0kA, and working vacuum degree is small
In 1 × 10-3Pa, the electric current of second melting is 3.5-4.1kA, and working vacuum degree is less than 1 × 10-3Pa, and casting is obtained after melting
Ingot.
As further scheme of the invention：Electron beam furnace is preheated in step, and the condition of preheating is：Make electronics
The vacuum of beam smelting furnace encephalic is less than 2 × 10-3Pa, and gun chamber vacuum is less than 1 × 10-3Pa, and electron gun sets high pressure
It is 30-40kW, after high pressure preheating 20-30min, closes high pressure, electron gun line 80-120mA, line preheating 6-12min is set,
Close electron gun line.
Compared with prior art, the beneficial effects of the invention are as follows：
The powder of niobium alloy powder prepared by the present invention is comparatively fine, up to 45-75 μm；Good fluidity, sphericity >=
95%；Apparent density is higher, up to 70%；Powder particle specific surface area 0.102cm2/ g, size distribution is also narrow；Oxygen content
It is low, ＜ 700ppm.It is widely portable to the processing of rapid laser-shaping technique.
Brief description of the drawings
Fig. 1 is 250 μm of niobium alloy powder SEM electron microscopic pictures；
Fig. 2 is 100 μm of niobium alloy powder SEM electron microscopic pictures；
Fig. 3 is 50 μm of niobium alloy powder SEM electron microscopic pictures.
Specific embodiment
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described,
Obviously, described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based in the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all
Belong to the scope of protection of the invention.
A kind of oxidation resistant niobium alloy powder formula, by percentage to the quality, each component content is：Nb >=99.8%, C≤
0.01%, H≤0.01%, Fe≤0.015%, Cr≤0.001%, Ni≤0.001%, Mn≤0.0004%, Na≤
0.0004%, K≤0.0004%, Mg≤0.002%, Ca≤0.001%, Si≤0.005%, Mo≤0.01%, Ta≤
0.012%, W≤0.01%, Al≤0.003%.It is obtained by following steps：Screening raw metal and removal of impurities, electronic torch melting
Stove is preheated, and will be then difficult volatilized metal raw material and is placed in electron beam furnace, regulation electron gun line 1000-2000mA
Under carry out bombardment melting, smelting time is 20-40min, and smelting temperature is 1900-2200 DEG C；Melting is cooled down after terminating, and carries out unit
The analysis and adjustment of cellulose content, mixing add volatile raw metal, vacuum consumable electrode arc furnace melting are then carried out, wherein first
The electric current of secondary melting is 2.3-3.0kA, and working vacuum degree is less than 1 × 10-3Pa, and the electric current of second melting is 3.5-4.1kA,
Working vacuum degree is less than 1 × 10-3Pa, and ingot casting is obtained after melting；Electron beam furnace is preheated in step, the condition of preheating
For：Make the vacuum of electron beam furnace encephalic less than 2 × 10-3Pa, gun chamber vacuum is less than 1 × 10-3Pa, electron gun
Setting high pressure is 30-40kW, after high pressure preheating 20-30min, closes high pressure, sets electron gun line 80-120mA, line preheating
6-12min, closes electron gun line.
Test：Niobium alloy powder parameter detection equipment：
(1) chemical composition with equipment be：Inductive coupling plasma emission spectrum (ICP-OES) Varian725-
ES；
(2) size distribution uses equipment：Laser particle analyzer Horiba LA-950；
(3) reference area uses equipment：ASAP2010 types specific surface and pore size distribution determining instrument；
(4) granule surface area analysis uses equipment with observation：Field emission scanning electron microscope Zeiss Sigma.
After tested, the powder of niobium alloy powder is comparatively fine (see Fig. 1-3), up to 45-75 μm；Good fluidity is spherical
Degree >=95%；Apparent density is higher, up to 70%；Powder particle specific surface area 0.102cm2/ g, size distribution is also narrow；Oxygen
Content is low, ＜ 700ppm.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be in other specific forms realized.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires to be limited rather than described above, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each implementation method is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Specification an as entirety, the technical scheme in each embodiment can also be formed into those skilled in the art through appropriately combined
May be appreciated other embodiment.
Claims (3)
1. a kind of oxidation resistant niobium alloy powder formula, it is characterised in that by percentage to the quality, each component content is：Nb≥
99.8%, C≤0.01%, H≤0.01%, Fe≤0.015%, Cr≤0.001%, Ni≤0.001%, Mn≤0.0004%,
Na≤0.0004%, K≤0.0004%, Mg≤0.002%, Ca≤0.001%, Si≤0.005%, Mo≤0.01%, Ta≤
0.012%, W≤0.01%, Al≤0.003%.
2. oxidation resistant niobium alloy powder formula according to claim 1, it is characterised in that be obtained by following steps：
Screening raw metal and removal of impurities, electron beam furnace are preheated, will then be difficult volatilized metal raw material and be placed in electron beam
In smelting furnace, bombardment melting is carried out under regulation electron gun line 1000-2000mA, smelting time is 20-40min, smelting temperature
It is 1900-2200 DEG C；Melting is cooled down after terminating, and carries out the analysis and adjustment of constituent content, and mixing adds volatile raw metal,
Then carry out vacuum consumable electrode arc furnace melting, the wherein electric current of first time melting is 2.3-3.0kA, working vacuum degree less than 1 ×
10-3Pa, the electric current of second melting is 3.5-4.1kA, and working vacuum degree is less than 1 × 10-3Pa, and ingot casting is obtained after melting.
3. oxidation resistant niobium alloy powder formula according to claim 2, it is characterised in that electron beam furnace in step
Preheated, the condition of preheating is：Make the vacuum of electron beam furnace encephalic less than 2 × 10-3Pa, gun chamber vacuum
Less than 1 × 10-3Pa, it is 30-40kW that electron gun sets high pressure, after high pressure preheating 20-30min, closes high pressure, sets electron gun
Line 80-120mA, line preheating 6-12min, closes electron gun line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710070957.7A CN106868370A (en) | 2017-02-09 | 2017-02-09 | A kind of oxidation resistant niobium alloy powder formula |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710070957.7A CN106868370A (en) | 2017-02-09 | 2017-02-09 | A kind of oxidation resistant niobium alloy powder formula |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106868370A true CN106868370A (en) | 2017-06-20 |
Family
ID=59166803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710070957.7A Pending CN106868370A (en) | 2017-02-09 | 2017-02-09 | A kind of oxidation resistant niobium alloy powder formula |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106868370A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1367724A (en) * | 1999-03-19 | 2002-09-04 | 卡伯特公司 | Making niobium and other metal powders by milling |
| CN1533312A (en) * | 2002-01-21 | 2004-09-29 | ͬ�Ϳ�ҵ��ʽ���� | Niobium powder and solid electrolytic capacitor |
| CN102660692A (en) * | 2012-04-06 | 2012-09-12 | 宁夏东方钽业股份有限公司 | Casting manufacturing method of superconducting NbTi alloy |
| CN104439264A (en) * | 2014-12-19 | 2015-03-25 | 九江有色金属冶炼有限公司 | Niobium bar preparation method and niobium bar prepared by same |
-
2017
- 2017-02-09 CN CN201710070957.7A patent/CN106868370A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1367724A (en) * | 1999-03-19 | 2002-09-04 | 卡伯特公司 | Making niobium and other metal powders by milling |
| CN1533312A (en) * | 2002-01-21 | 2004-09-29 | ͬ�Ϳ�ҵ��ʽ���� | Niobium powder and solid electrolytic capacitor |
| CN102660692A (en) * | 2012-04-06 | 2012-09-12 | 宁夏东方钽业股份有限公司 | Casting manufacturing method of superconducting NbTi alloy |
| CN104439264A (en) * | 2014-12-19 | 2015-03-25 | 九江有色金属冶炼有限公司 | Niobium bar preparation method and niobium bar prepared by same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI674334B (en) | Manufacturing method of high entropy alloy coating | |
| WO2017026519A1 (en) | Ni-based super alloy powder for laminate molding | |
| CN110592506B (en) | GH4780 alloy blank and forging and preparation method thereof | |
| EP2639323B1 (en) | Wear-resistant cobalt-based alloy and engine valve coated with same | |
| CN107429332A (en) | Aluminium alloy containing iron, silicon, vanadium and copper | |
| CN108436074B (en) | Tantalum-tungsten alloy foil preparation method and tantalum-tungsten alloy foil | |
| CN111014703B (en) | Preparation method of nickel-based alloy powder for laser cladding | |
| CN114934205B (en) | Smelting method for nickel-based superalloy with high purity | |
| WO2021078885A1 (en) | Printable powder material of fecral for additive manufacturing and an additive manufactured object and the uses thereof | |
| US9206715B2 (en) | High-toughness cobalt-based alloy and engine valve coated with same | |
| JP2013059783A (en) | Flux for electroslag overlaying | |
| US20240076763A1 (en) | Heat-resistant alloy, heat-resistant alloy powder, heat-resistant alloy structural component, and manufacturing method of the same | |
| CN112024870A (en) | SMTGH3230 spherical powder for 3D printing and preparation method and application thereof | |
| CN113174525A (en) | High-entropy alloy powder and preparation and application thereof | |
| CN112024898A (en) | Preparation method of GH5188 powder for 3D printing | |
| Ye et al. | Densification and microstructure formation mechanisms of 80 W-14Ni-6Fe fabricated by laser powder bed fusion | |
| CN101988161A (en) | Process for manufacturing components obtained by sintering of Co-Cr-Mo alloys having improved ductility at high temperatures | |
| WO2023176450A1 (en) | Composite material, method for producing composite material, and mold | |
| CN116021022B (en) | Method for preparing 3D printing duplex stainless steel powder by gas atomization and nitrogen control | |
| CN106868370A (en) | A kind of oxidation resistant niobium alloy powder formula | |
| US11932921B2 (en) | Alloy composition, method for producing alloy composition, and die | |
| CN108070784B (en) | Low carbon steel alloy composition, powder and method for producing workpiece containing the same | |
| WO2023095805A1 (en) | Composite material, manufacturing method for composite material, and mold | |
| Zhao et al. | Numerical simulation and experimental study on production of high-speed steel powder by high-frequency induction melting gas atomization | |
| JP2005097743A (en) | Powder for repairing die-casting die, and method of repairing die-casting die using the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170620 |