CN105689919B - Nickel-based alloy welding wire with weld deposit metal capable of being recrystallized - Google Patents
Nickel-based alloy welding wire with weld deposit metal capable of being recrystallized Download PDFInfo
- Publication number
- CN105689919B CN105689919B CN201610230578.5A CN201610230578A CN105689919B CN 105689919 B CN105689919 B CN 105689919B CN 201610230578 A CN201610230578 A CN 201610230578A CN 105689919 B CN105689919 B CN 105689919B
- Authority
- CN
- China
- Prior art keywords
- welding
- nickel
- weld
- less
- ing
- 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.)
- Active
Links
- 238000003466 welding Methods 0.000 title claims abstract description 73
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 28
- 239000000956 alloy Substances 0.000 title claims abstract description 28
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 18
- 239000002184 metal Substances 0.000 title claims abstract description 18
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title abstract description 14
- 229910052759 nickel Inorganic materials 0.000 title abstract description 5
- 239000007789 gas Substances 0.000 claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 6
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 5
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 4
- 239000012535 impurity Substances 0.000 claims abstract description 3
- 239000011261 inert gas Substances 0.000 claims abstract description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000010937 tungsten Substances 0.000 claims abstract description 3
- 239000000945 filler Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 6
- 239000011229 interlayer Substances 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000000137 annealing Methods 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 238000011049 filling Methods 0.000 claims description 2
- 238000005242 forging Methods 0.000 claims description 2
- 238000001291 vacuum drying Methods 0.000 claims description 2
- 238000010622 cold drawing Methods 0.000 claims 1
- 239000004615 ingredient Substances 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 13
- 239000013078 crystal Substances 0.000 abstract description 8
- 238000001953 recrystallisation Methods 0.000 abstract description 7
- 238000005204 segregation Methods 0.000 abstract description 5
- 210000001787 dendrite Anatomy 0.000 abstract description 4
- 238000005728 strengthening Methods 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 239000010953 base metal Substances 0.000 abstract 1
- 239000006104 solid solution Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 6
- 239000011159 matrix material Substances 0.000 description 3
- 230000008520 organization Effects 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- 208000037656 Respiratory Sounds Diseases 0.000 description 2
- 238000005275 alloying Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910001374 Invar Inorganic materials 0.000 description 1
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000000930 thermomechanical effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3033—Ni as the principal constituent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/167—Arc welding or cutting making use of shielding gas and of a non-consumable electrode
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Arc Welding In General (AREA)
Abstract
The invention belongs to the field of welding materials of ultra-supercritical power stations, in particular to a solid solution strengthening type nickel-based alloy welding wire with high plasticity, which is suitable for welding an superheater/reheater tube of an ultra-supercritical boiler and welding the superheater and the reheater tube with a gas collection header (including a tube connecting seat) of the boiler, and is mainly characterized in that after TIG (tungsten inert gas welding) welding by using the welding wire, weld deposit metal can be recrystallized after postweld heat treatment at 1000 ℃ or above, and dendrite and columnar crystal tissues in the original weld joint are eliminated; the hardness of the welded seam area is 300HV after welding, and the hardness is reduced to 210HV after recrystallization; eliminating the residual stress and component segregation of the welding seam, and basically consistent with the base metal in the structure appearance. The nickel-based alloy welding wire comprises the following chemical components (by weight percent) of Fe less than 3 percent, Cr: 14-18%, Al + Ti is less than or equal to 0.45%, Ti/Al is less than 0.9, Nb: 1.0-1.5%, Mo: 7.0-9.8%, W less than 0.4%, Si less than or equal to 1.0%, Mn: 0.5-1.0%, C is less than or equal to 0.1%, B: 0.003-0.005 percent of Zr, less than or equal to 0.03 percent of Zr, the balance of Ni and the sum of other impurity elements is less than 0.1 percent.
Description
Technical field：
The invention belongs to ultra supercritical power station field of welding material, and in particular to what a kind of weld(ing) deposit can recrystallize
Nickel-base alloy bare welding filler metal.
Background technology：
With the development of thermal power generating technology, develop 600 DEG C and the above ultra-supercritical power generation technology, China is saved
The energy reduces pollutant and CO2 emission with highly important strategic importance and actual application value.Power station high temperature material
Material welding be always power plant construction and production key technique, and steam parameter be continuously improved, used high temperature material
The alloying level of material is continuously improved, and austenitic stainless steel and nickel-base alloy largely use so that welding technique difficulty is also therewith
Increase.
Traditional seam organization does not have the chance of controlled rolling and thermomechanical treatment due to deposited metal, with directive column
(branch) is brilliant can not possibly be thus to obtain refinement；Simultaneously again since weld seam cooling velocity is fast, segregation is serious, and deposition gold
Nb, V etc. in category are difficult to be precipitated in fine carbide, nitride in solidification process, therefore the synthesis mechanical property of weld seam
It can be far away from base material and there are anisotropy.With the extension of welding point active time, weld properties are (especially tough
Property) decay notable, reduced service life；Simultaneously because welding residual stress, easily occurs stress corrosion (SCC), become entire (weldering
Connect) weak link of component, influence the safe operation in power station.
For such weld seam there are the problem of, and in domestic existing wlding system, also find no such nickel-base alloy
Welding wire does not find relevant technology report yet.The weld(ing) deposit of the welding material is required with following technology：Weld seam is molten
Metallisation is handled by postwelding recrystallization, and column (branch) crystalline substance with apparent directionality in former seam organization is completely reformed into
Equiax crystal, hardness drop to 200~220HV by 290~310HV, while farthest eliminating component segregation and welding remnants
Stress keeps seam organization and base material with uniformity.
Solution strengthening nickel-base alloy wlding thermal stability is good, matrix Solid Free phase transformation.By alloying element to the work of matrix
The coefficient of thermal expansion and plasticity of material are improved with mechanism, make deposition to generate big heat (expansion) stress in the welding process
It is plastically deformed under metallic high temperature；Simultaneously because the good plasticity of austenitic matrix, avoids and is answered in larger welding remnants
It cracks under power and deflection.Quickly due to weld seam solidification and cooling velocity, weld(ing) deposit remaining deformation and plasticity
The distortion of deformation can be remained, and in subsequent post weld heat treatment, weld(ing) deposit has occurred more than recrystallization temperature
(static state) recrystallizes.
Weld(ing) deposit caused by welded stress is plastically deformed, and is more than the critical strain amount ε of its recrystallizationcr, and it is small
In its maximum plastic deformation amount δmax。
That is, εcr<εWeld seam<δmax
The addition of Mn, B element reduce the invar characteristic of alloy, will increase the coefficient of thermal expansion of alloy.Ti and Al are
The hardening constituent of ordered structure ' (Ni3(Al, Ti)) formation element, as the alloy wlding of solution strengthening, should reduce as possible Ti and
The content of Al elements can avoid the generation of post weld heat treatment reheat crack(ing)；To control Ti/Al ratios simultaneously, Ti/Al than it is excessively high when meeting
Structure stability when high temperature is reduced, brittleness η (Ni occur3Low-alloyed high-temp plastic drops in Ti) phase transition.Stringent control W and
Zr constituent contents, deteriorate to avoid weldability.
In addition, rare earth element can reduce the mobility of nickel-base alloy liquid, increase weld seam crystallization crack sensitivity, therefore welding wire
Rare earth element is free of in chemical composition.
Invention content：
The purpose of the present invention is be directed to existing ultra supercritical Utility Boiler Superheater/reheater tube welding point remnants to answer
The problems such as power is big, component segregation is serious, weld metal zone solidification (casting) state tissue is apparent, providing a kind of weld(ing) deposit can tie again
Brilliant nickel-base alloy bare welding filler metal.
In order to achieve the above objectives, the present invention adopts the following technical scheme that realize：
A kind of nickel-base alloy bare welding filler metal that weld(ing) deposit can recrystallize, the nickel-base alloy bare welding filler metal by following component by weight
Percentage is prepared：Fe < 3%, Cr：14-18%, Al+Ti≤0.45% and Ti/Al < 0.9, Nb：1.0-1.5%, Mo：
7.0-9.8%, W < 0.4%, Si≤1.0%, Mn：0.5-1.0%, C≤0.1%, B：0.003-0.005%, Zr≤
0.03%, remaining is Ni and other impurities element summation < 0.1%.
The present invention, which further improves, to be, which is smelted using vacuum drying oven, by forging, rolling, cold
After drawing and annealing, nickel-base alloy bare welding filler metal is ultimately formed.
The present invention, which further improves, to be, the specification of nickel-base alloy bare welding filler metal is Φ 1.5-2.4mm, using welding procedure
For：Manual TIG is welded or semi-automatic silk filling tungsten inert-gas welding TIG, welding current intensity：105-210A, welding arc voltage：
10.5-18V, speed of welding are：100~150mm/min, electric current type/polarity：Direct current DC/ just meets SP, and interlayer temperature is not higher than
100 DEG C, protective gas：Ar, 12~16L/min of gas flow.
The present invention, which further improves, to be, in use, using Tig Welding, using Ar as protective gas,
Form weld(ing) deposit.
The present invention, which further improves, to be, weld(ing) deposit at 1000~1100 DEG C by being heat-treated 30~60 minutes
Afterwards, air-cooled, weld(ing) deposit recrystallizes.
The present invention, which further improves, to be, nickel-based welding wire is suitable for ultra-supercritical boiler superheater and reheater tube
Welding, the welding of superheater and reheater tube and boiler gas collection header.
Compared with the existing technology, the present invention has the following advantages：
1, through experiment, the present invention is suitable for the welding of ultra supercritical station boiler high-temperature component, and nickel-based welding wire is suitable for super
The welding of super critical boiler superheater and reheater tube, superheater and reheater tube and boiler gas collection header (including stub (tube))
Welding.
When 2, being welded using welding wire of the present invention, weld(ing) deposit high-temp plastic is good, is not likely to produce weld crack.
3, welding wire of the present invention can realize the microalloying of weld seam, the weld seam met the requirements of the standard.
When 4, being welded using welding wire of the present invention, after postwelding recrystallization (heat) processing, weld metal zone is solidifying for weld(ing) deposit
Solid column crystal and dendrite are changed into equiax crystal, farthest eliminate composition of weld line segregation and welding residual stress,
Keep the consistency with base material tissue.
Description of the drawings：
Fig. 1 is the light microscope pattern photo for welding IN740H nickel-base alloys (base material) welding joint structure；Wherein, scheme
1 (a) is the light microscope pattern photo of as-welded microstructure, and Fig. 1 (b) is the light microscope shape of postwelding dynamic recrystallization treatment tissue
Looks photo.
Fig. 2 is the light microscope pattern photo for welding GH2984 ni-fe-based alloys (base material) welding joint structure；Wherein,
Fig. 2 (a) is the light microscope pattern photo of as-welded microstructure, and Fig. 2 (b) is the light microscope of postwelding dynamic recrystallization treatment tissue
Pattern photo.
Specific implementation mode：
Below in conjunction with embodiment, invention is further described in detail.
Embodiment 1：
Referring to Fig. 1, is welded using manual TIG using the welding wire (Φ 1.5mm), IN740H nickel-base alloys are welded, are welded
Connect electric current：140A, weldingvoltage：13V, speed of welding are：110mm/min, electric current type/polarity：Direct current DC/ just connects SP, layer
Between temperature be not higher than 100 DEG C, protective gas：Ar, gas flow 13L/min.Postwelding carries out 1050 DEG C/1h heat treatments, weld seam group
Knitting from the column crystal of postwelding and dendrite becomes equiax crystal, and the defects of welding crackle generates.Postwelding commissure hardness is
310HV, impact flexibility 22kJ；After post weld heat treatment, hardness is reduced to 215HV, impact flexibility 31kJ.
Embodiment 2：
Referring to Fig. 2, is welded using manual TIG using the welding wire (Φ 2.4mm), GH2984 ni-fe-based alloys is welded,
Welding current：160A, weldingvoltage：14V, speed of welding are：120mm/min, electric current type/polarity：Direct current DC/ just meets SP,
Interlayer temperature is not higher than 100 DEG C, protective gas：Ar, gas flow 15L/min.Postwelding carries out 1100 DEG C/30min heat treatments, weldering
Seam tissue becomes equiax crystal from the column crystal of postwelding and dendrite, and the defects of welding crackle generates.Postwelding commissure hardness
For 300HV, impact flexibility 26kJ；After post weld heat treatment, hardness is reduced to 210HV, impact flexibility 46kJ.
Claims (3)
1. the nickel-base alloy bare welding filler metal that a kind of weld(ing) deposit can recrystallize, which is characterized in that the nickel-base alloy bare welding filler metal is by following
Ingredient is prepared by weight percentage：Fe < 3%, Cr：14-18%, Al+Ti≤0.45% and Ti/Al < 0.9, Nb：1.0-
1.5%, Mo：7.0-9.8%, W < 0.4%, Si≤1.0%, Mn：0.5-1.0%, C≤0.1%, B：0.003-0.005%, Zr≤
0.03%, remaining is Ni and other impurities element summation < 0.1%；
The nickel-base alloy bare welding filler metal is smelted using vacuum drying oven, after forging, rolling, cold drawing and annealing, ultimately forms nickel-base alloy
Welding wire；Weld(ing) deposit pass through at 1000 ~ 1100 DEG C heat treatment 30 ~ after sixty minutes, it is air-cooled, weld(ing) deposit occur tie again
It is brilliant；
Wherein, the specification of nickel-base alloy bare welding filler metal be Φ 1.5-2.4mm, use welding procedure for：Manual TIG is welded or semi-automatic silk filling
Tungsten inert-gas welding TIG, welding current intensity：105-210A, welding arc voltage：10.5-18V, speed of welding are：100~
150mm/min, electric current type/polarity：Direct current DC/ just meets SP, and interlayer temperature is not higher than 100 DEG C, protective gas：Ar, gas stream
Measure 12 ~ 16L/min.
2. the nickel-base alloy bare welding filler metal that weld(ing) deposit described in accordance with the claim 1 can recrystallize, which is characterized in that use
When, using Tig Welding, using Ar as protective gas, form weld(ing) deposit.
3. the nickel-base alloy bare welding filler metal that weld(ing) deposit described in accordance with the claim 1 can recrystallize, which is characterized in that Ni-based weldering
Silk is suitable for the welding of ultra-supercritical boiler superheater and reheater tube, superheater and reheater tube and boiler gas collection header
Welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610230578.5A CN105689919B (en) | 2016-04-14 | 2016-04-14 | Nickel-based alloy welding wire with weld deposit metal capable of being recrystallized |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610230578.5A CN105689919B (en) | 2016-04-14 | 2016-04-14 | Nickel-based alloy welding wire with weld deposit metal capable of being recrystallized |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105689919A CN105689919A (en) | 2016-06-22 |
| CN105689919B true CN105689919B (en) | 2018-10-30 |
Family
ID=56216272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610230578.5A Active CN105689919B (en) | 2016-04-14 | 2016-04-14 | Nickel-based alloy welding wire with weld deposit metal capable of being recrystallized |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105689919B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017129218A1 (en) * | 2017-12-08 | 2019-06-13 | Vdm Metals International Gmbh | WELDING MATERIAL |
| CN108723637B (en) * | 2018-06-20 | 2020-12-08 | 华能国际电力股份有限公司 | Nickel-iron-based welding wire for 700 ℃ ultra-supercritical power station boiler |
| CN110666393B (en) * | 2019-11-15 | 2021-09-28 | 攀钢集团江油长城特殊钢有限公司 | Core wire material and preparation method thereof |
| CN112025137A (en) * | 2020-07-21 | 2020-12-04 | 江苏金桥焊材科技股份有限公司 | High-temperature corrosion-resistant nickel-based welding wire and smelting and preparation method thereof |
| CN112518172A (en) * | 2020-11-24 | 2021-03-19 | 中国华能集团有限公司 | Nickel-cobalt-based high-temperature alloy welding wire |
| CN113084313B (en) * | 2021-03-03 | 2022-06-14 | 广州特种承压设备检测研究院 | Argon tungsten-arc welding process for steel for ultra-supercritical boiler |
| CN113510340B (en) * | 2021-08-10 | 2022-06-14 | 哈尔滨电气动力装备有限公司 | Welding and postweld heat treatment process method for martensite precipitation hardening stainless steel material |
| CN114799425B (en) * | 2022-06-30 | 2022-11-11 | 中国空气动力研究与发展中心高速空气动力研究所 | Invar steel medium plate welding process |
| CN116329809B (en) * | 2023-05-29 | 2023-09-08 | 西安热工研究院有限公司 | Nickel-based amorphous flux-cored wire and preparation method thereof |
| CN118357632B (en) * | 2024-06-20 | 2024-09-10 | 西安热工研究院有限公司 | Welding wire for nickel-based gradient cladding layer on surface of water-cooled wall and preparation method thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2013332A1 (en) * | 1969-03-28 | 1971-02-18 | Inst Elektroswarki Patona | Electrode and mechanical application of - corrosion-resistant layer |
| JPS61262487A (en) * | 1985-05-15 | 1986-11-20 | Ishikawajima Harima Heavy Ind Co Ltd | Nickel-base welding material |
| JP3485980B2 (en) * | 1994-10-03 | 2004-01-13 | Ｊｆｅスチール株式会社 | Method for producing welded clad steel pipe for boiler |
| DE19953079B4 (en) * | 1999-11-04 | 2013-12-19 | Alstom Technology Ltd. | Method for welding components |
| CN102581513B (en) * | 2012-03-06 | 2015-01-14 | 中国科学院金属研究所 | Nickel-based welding wire for main equipment of nuclear island of nuclear power station |
| CN105014258A (en) * | 2015-06-26 | 2015-11-04 | 北京北冶功能材料有限公司 | Nickel-base superalloy welding wire for 700 DEG C-above ultra-supercritical coal power generation equipment |
| CN105420638B (en) * | 2015-11-20 | 2017-03-29 | 钢铁研究总院 | 700 DEG C of ultra-supercritical boiler water-cooling wall heat-resisting alloys and tubing manufacture method |
-
2016
- 2016-04-14 CN CN201610230578.5A patent/CN105689919B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105689919A (en) | 2016-06-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105689919B (en) | Nickel-based alloy welding wire with weld deposit metal capable of being recrystallized | |
| EP2196551B1 (en) | Use of low-thermal-expansion nickel-based superalloy for a boiler component, according boiler component and method for its production | |
| CN105112728B (en) | Heat-resisting alloy for 700-DEG C ultra-supercritical steam turbine rotor and preparation method thereof | |
| CN106756253A (en) | Brush seal high-performance high-temperature nickel-base alloy brush filament material | |
| WO2015123918A1 (en) | High-temperature nickel-based alloy for 700°c grade ultra-supercritical coal-fired power station and preparation thereof | |
| WO2020249113A1 (en) | Low-chromium corrosion-resistant high-strength polycrystalline high-temperature alloy and preparation method therefor | |
| JP7342149B2 (en) | Precipitation strengthened nickel-based high chromium superalloy and its manufacturing method | |
| WO2020249115A1 (en) | Composite-strengthened corrosion-resistant superalloy and preparation processing therefor | |
| CN106636848A (en) | Preparation method of abrasion-proof and corrosion-resistant nickel-based alloy wire | |
| CN108723637A (en) | Nickel-iron-based welding wire for 700 ℃ ultra-supercritical power station boiler | |
| KR101809360B1 (en) | METHOD FOR PRODUCING Ni-BASED HEAT-RESISTANT ALLOY WELDING JOINT AND WELDING JOINT OBTAINED BY USING THE SAME | |
| CN106756257A (en) | A kind of resistance to high temperature oxidation Wear-resistant Co-base alloy silk material and preparation method thereof | |
| CN103252593B (en) | Oxidation-resistant low-expansion high-temperature alloy welding wire for gas shielded welding | |
| CN103358050B (en) | Ni base alloy welding material and use the welding wire of this material, welding rod and welding powder | |
| CN104152827B (en) | Heat treatment process for strengthening cold-rolled nickel-iron-based high-temperature alloy grain boundary | |
| CN101637850A (en) | Argon tungsten-arc welding wire used in HR3C stainless steel welding | |
| CN110405380A (en) | Iron-based high-temperature alloy welding wire | |
| CN106636762A (en) | High-performance cobalt-based high-temperature alloy brush wire material | |
| CN109848609A (en) | Low-expansibility nickel-based welding wire | |
| CN114606413B (en) | High-temperature alloy for additive manufacturing and application thereof | |
| CN109706346A (en) | A kind of nickel base superalloy and the article formed by alloy | |
| CN102409258B (en) | Structural homogeneity control method of boron-containing high strength hydrogen resistant brittle alloy | |
| CN105312793A (en) | Fe-Ni based high-temperature alloy welding wire for high-temperature component for 700 DEG C ultra-supercritical thermal power and application of Fe-Ni based high-temperature alloy welding wire | |
| CN110268078A (en) | High temperature resistant to damage superalloy, the product manufactured by the alloy and the method for manufacturing the alloy | |
| JP6148843B2 (en) | Large cast member made of nickel base alloy and method for producing the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |