CN102744531A - Nickel-based alloy welding wire - Google Patents
Nickel-based alloy welding wire Download PDFInfo
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- CN102744531A CN102744531A CN2012102700911A CN201210270091A CN102744531A CN 102744531 A CN102744531 A CN 102744531A CN 2012102700911 A CN2012102700911 A CN 2012102700911A CN 201210270091 A CN201210270091 A CN 201210270091A CN 102744531 A CN102744531 A CN 102744531A
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Abstract
The invention discloses a nickel-based alloy welding wire which comprises, by weight percentage, 0.01-0.1% of C, <=0.5% of Mn, <=0.5% of Si, 29-32% of Cr, 3-4% of Mo, 2-3% of Nb+Ta, 0.2-1.0% of Ti, 0.3-1.0% of Al, 7-9% of Fe, <=0.005% of S, <=0.01% of P, balance Ni and inevitable impurities, wherein the Ni is less than or equal to 55%. The nickel-based alloy welding wire can be welded by using a nickel-based alloy plate with corrosion resistant alloy requirements. Deposited metal of the nickel-based alloy welding wire has following performance indexes: yield strength (sigma s)is >= 550MPa, tensile strength (sigma b) is >= 750MPa, elongation rate (delta) is >= 40%, and impart toughness (AKV, 20 DEG C) is >= 90J/cm<2>.
Description
Technical field
The invention belongs to field of welding material, particularly a kind of nickel-base alloy bare welding filler metal, the welding that is mainly used in the dissimilar steel such as welding or corrosion resistant alloy and carbon steel, stainless steel of corrosion resistant alloy in the nickel-base alloy system is used.
Background technology
The relevant nickel-base alloy bare welding filler metal standard ERNiCrFe-7 composition of 5.14 (Specification for Nickel and Nickel Alloy Bare Welding Electrodes and Rods) is in the ASME standard: C≤0.04%, Mn≤1.0%, Si≤0.5%, Cr28-31.5%; Mo≤0.5%, (Nb+Ta)≤0.1%, Ti≤1.0%; Al≤1.10%, Fe7-11%, S≤0.015%; P≤0.02% the rest is Ni, and other unavoidable impurities elements.
Chinese patent numbers 98116301 is that a kind of suitable manufacturing is used to weld super two-phase or the stainless nickel-base alloy wiry of super austenitic; Point out that composition is 24.5%＜Cr≤26.5%; 13.5≤Mo≤16.5%, surplus are the impurity that nickel, optional one or more assistant alloy compositions and technology are brought into, this assistant alloy composition is selected from nitrogen; Aluminium and magnesium, and the electrode of making thus.
What Chinese patent numbers 94102564 provided is a kind of nickel-base alloy, and its chemical composition (weight %) is: Cr20 ~ 35%, and Cu or Si0.5 ~ 1.5%, RE0.01 ~ 0.3%, C0.01 ~ 0.2%, Fe＜2%, surplus is Ni.
What Chinese patent numbers 200910227721 provided is a kind of nickel-base welding rod, and what be primarily aimed at is that the prescription of electrode coating is formed and content.
Chinese patent numbers 200580039370 has proposed a kind of nickel base superalloy, its chemical composition (% representes with weight): 7.7-8.3Cr, 5.0-5.25Co, 2.0-2.1Mo, 7.8-8.3W, 5.8-6.1Ta, 4.9-5.1Al, 1.3-1.4Ti, 0.11-0.15Si, 0.11-0.15Hf, 200-750ppmC, 50-400ppmB, 0.1-5ppmS, 5-100ppmY and/or 5-100ppmLa.
Chinese patent numbers 200710144527 is a kind of nickel-based welding wires, and its main component requires to be C0.047%, Si0.26%, Mn2.67%, P0.02%, S0.006%, Ni73.0%, Cr19.51%, Ti0.28%, Nb2.66%, Fe1.48%, Cu0.064% etc.
Summary of the invention
The object of the present invention is to provide a kind of nickel-base alloy bare welding filler metal, can use the nickel-base alloy sheet material welding of corrosion resistant alloy requirement, its deposited metal has following performance indications: yield strength (σ
s)>=550MPa, tensile strength (σ
b)>=750MPa, percentage elongation (δ)>=40%, impact flexibility (A
KV, 20 ℃)>=90J/cm
2
For achieving the above object, technical scheme of the present invention is:
A kind of nickel-base alloy bare welding filler metal, its chemical component weight percentage is: C0.01 ~ 0.1%, Mn≤0.5%, Si≤0.5%; Cr29～32%, Mo3 ~ 4%, Nb+Ta2 ~ 3%, Ti0.2 ~ 1.0%; Al0.3 ~ 1.0%, Fe7 ~ 9%, S≤0.005%, P≤0.01%; All the other are Ni, and Ni≤55%, and inevitable impurity.
In composition design of the present invention:
Welding material of the present invention adopts the Ni-Cr-Fe alloy system, on the basis of strictness control S, P constituent content, suitably adds elements such as a spot of Mo, Nb or Ta.
C is one of metal strengthening element effective element, simultaneously also is to guarantee one of elevated temperature strength important element in the nickel-base alloy system, and a certain amount of C element is absolutely necessary, but C content is too much, will combine formation M with elements such as Fe in the alloy system, Cr
23C
6In carbide, reduce the corrosive nature of weld metal.Mechanism according to the generation of weld seam fire check; When promptly being weaker than the intergranular bond strength owing to intercrystalline interface adhesion; Under the effect of the tensile stress in the weld seam cooling procedure, will crack, and interstitial atom C is main one of the element that influences that produces fire check; Therefore for fear of the sensitiveness that perhaps reduces the weld metal fire check, control C content is in 0.1%.
Cr, in the present invention, solution strengthening also is one of path of high strength weld seam assurance; Wherein the Cr element solid solution causes distortion of lattice in the C matrix, produces elastic stress field; The Cr element also can reduce the solid solution stacking fault energy to a certain extent simultaneously, and creep rupture strength is obviously improved; The 3rd is exactly that Cr forms oxide-film in high temperature alloy γ matrix, utilizes the existence of oxide-film to improve the high temperature oxidation resistance of weld metal among the present invention.In sum, low excessively Cr content will reduce the anti-oxidant and corrosion resistance of alloy in order to reach the object of the invention, must guarantee that Cr content is more than 15%; Simultaneously because Cr also is a ferrite former; Too high Cr content will cause occurring in the weld seam cooling procedure pro-eutectoid delta ferrite; The pro-eutectoid delta ferrite can change into the γ austenite to a certain extent during slow cooling, but because welding process is a nonequilibrium condition process, too high Cr content causes the pro-eutectoid delta ferrite will not can to change fully; Remaining in the intercrystalline of seam organization, is one of principal element of delta ferrite generation stress corrosion cracking.Therefore will take all factors into consideration according to the alloy designs principle, the Cr content in the composition system of the present invention is 29 ~ 32%.
Ni; Being the basic element in the composition system of the present invention, is the main composition element that constitutes in the solution strengthening type austenite component of weld wire system, in iron-base superalloy; For stable austenite; Ni element commonly used carries out alloying, and content is generally 25% ~ 50%, so that ferrite matrix is transformed into stable austenitic matrix.Ni content is higher than 55% when above, will with η-Ni
3Separating out of Ti phase do not have obvious improvement to toughness and the plastic property of inventing this alloy system weld metal.The adding of alloy element Al, Ti, Nb etc. will form γ ' (Ni with Ni in the alloy system of the present invention
3Al) phase and γ " (Ni
3Nb) phase when welding wire is on active service, can guarantee the elevated temperature strength of material through the separating out of phase under hot conditions.
Mo also is one of a kind of raising nickel-base alloy elevated temperature strength element, adds a certain amount of Mo in the alloy system of the present invention; Be to utilize its atom bigger; Than the characteristics of the big 9%-12% of atom such as Ni, Fe, enlarge markedly Ni based solid solution lattice paprmeter, thereby improve the yield strength of weld metal; Simultaneously, Mo can improve Cl in the austenitic alloy
-Spot corrosion that causes and crevice corrosion ability.But because Mo also is the one of the chief elements that causes the weld seam embrittlement, therefore must strictly limit its content in alloy system, the present invention is 3% ~ 4% for Mo content.
The adding of Nb and Ta also is to utilize its typically solution strengthening effect in austenitic matrix, utilize its be dissolved in γ mutually in, reduce the stacking fault energy of matrix, improve the croop property of weld metal.But too high Nb and Ta content will make weld seam produce the Laves phase, cause the decline of weld seam high temperature toughness and corrosive nature, also will improve the sensitiveness of the reheat crack(ing) of weld metal simultaneously.Therefore, in conjunction with the result of each element comprehensive function in the alloy system of the present invention, the content of design Nb+Ta element is 2% ~ 3%.
Ti and Al, in nickel base superalloy, the adding of element al and Ti each have 20% and 10% of its content to get in the γ solid solution approximately, plays the solution strengthening effect, and the Al of residue content will form Ni with Ni
3Al carry out the precipitation strength effect, and the Ti element also will substitute part A l element, form Ni
3(Al Ti), strengthens the precipitation strength effect; But two kinds of constituent contents can not be too high, otherwise will increase the size of γ ' phase, causes the instability on γ ' thermodynamics, thereby influence the croop property of alloy system.
Beneficial effect of the present invention
Ni-Cr, the (tensile strength (σ of Ni-Cr-Mo soldering wire alloy system with existing standard or patent employing
b) be 550-650MPa, percentage elongation (δ)>=20%) to compare, the Ni-Cr-Fe alloy system that the present invention adopts not only has higher deposited metal tensile strength, has better toughness and extension property simultaneously.
Welding wire of the present invention can be applied in the welding applications in the nickel-bass alloy material, and its typical mechanical property requirements is following: yield strength (σ
s)>=550MPa, tensile strength (σ
b)>=750MPa, percentage elongation (δ)>=40%, impact flexibility (A
KV, 20 ℃)>=90J/cm
2
The specific embodiment
Below in conjunction with embodiment the present invention is further specified.
The composition range that proposes according to the present invention, through smelting, the nickel-base alloy bare welding filler metal composition of operation manufacturing such as rolling, drawing sees table 1, the diameter of welding wire is 2.4mm.Adopt the method for argon tungsten-arc welding to carry out the deposited metal performance test, obtain corresponding performance and see table 2.
Table 1 unit: percentage by weight
Table 2
During the welding that nickel-base alloy bare welding filler metal of the present invention can mainly can be used for dissimilar steel such as welding or corrosion resistant alloy and carbon steel, the stainless steel of corrosion resistant alloy in the nickel-base alloy system is used; Also can manufacture welding and be applied in carbon steel built-up welding surface according to this composition system; The corrosion resistant alloy surface deposited metal layer that formation has specific (special) requirements satisfies certain decay resistance requirement.
Claims (1)
1. nickel-base alloy bare welding filler metal, its chemical component weight percentage is: C 0.01 ~ 0.1%, Mn≤0.5%, Si≤0.5%; Cr 29 ~ 32%, and Mo 3 ~ 4%, and Nb+Ta 2 ~ 3%, and Ti 0.2 ~ 1.0%; Al0.3 ~ 1.0%, Fe 7 ~ 9%, S≤0.005%, P≤0.01%; All the other are Ni, and Ni≤55%, and inevitable impurity.
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| CN2012102700911A CN102744531A (en) | 2012-07-31 | 2012-07-31 | Nickel-based alloy welding wire |
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|---|---|---|---|
| CN2012102700911A CN102744531A (en) | 2012-07-31 | 2012-07-31 | Nickel-based alloy welding wire |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104511700A (en) * | 2013-09-26 | 2015-04-15 | 宝山钢铁股份有限公司 | Nickel base alloy welding wire and preparation method thereof |
| CN105081605A (en) * | 2015-08-03 | 2015-11-25 | 合肥通用机械研究院 | Microalloying 25Cr35NiNb welding wire for ethylene cracking furnace tube |
| CN105312793A (en) * | 2014-07-29 | 2016-02-10 | 中国科学院金属研究所 | 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 |
| CN105618959A (en) * | 2016-03-11 | 2016-06-01 | 天津滨海雷克斯激光科技发展有限公司 | Novel SL-NiCrMo alloy material for laser welding and fusion cladding of MONEL-K500 alloy |
| CN106181115A (en) * | 2015-04-29 | 2016-12-07 | 海宁瑞奥金属科技有限公司 | Low spatter 9Ni steel nickel-based welding electrode |
| CN106541222A (en) * | 2015-09-22 | 2017-03-29 | 中国科学院金属研究所 | The nuclear power nickel-based welding wire of high-temp and high-strength flawless defect and its preparation and use |
| CN108441703A (en) * | 2018-03-14 | 2018-08-24 | 太原钢铁(集团)有限公司 | A kind of alkali corrosion resistance nickel-base alloy |
| CN110560961A (en) * | 2019-10-12 | 2019-12-13 | 哈尔滨威尔焊接有限责任公司 | Ta and Nb composite nickel-based welding wire for nuclear power equipment and welding method |
| CN111001964A (en) * | 2019-12-17 | 2020-04-14 | 江苏双勤新能源科技有限公司 | Preparation method and welding process of high-temperature corrosion resistant nickel-based solid welding wire for petrochemical equipment |
| CN112154043A (en) * | 2018-05-23 | 2020-12-29 | 山特维克材料技术公司 | Austenitic nickel-base alloy |
| CN113319468A (en) * | 2021-06-16 | 2021-08-31 | 哈尔滨焊接研究院有限公司 | Component design method of nuclear power nickel-based alloy welding wire capable of preventing welding cracks and nuclear power nickel-based alloy welding wire |
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| JPH11140570A (en) * | 1997-11-06 | 1999-05-25 | Hitachi Ltd | Nickel alloy with high strength and high corrosion resistance, and its production |
| US20070272671A1 (en) * | 2004-01-21 | 2007-11-29 | Mitsubishi Heavy Industries, Ltd. | High Cr Ni-Based Alloy Filler Material and Welding a Rod for Shielded Metal Arc Welding |
| CN101144130A (en) * | 2006-08-08 | 2008-03-19 | 亨廷顿冶金公司 | Welding alloy and articles for use in welding, weldments and method for producing weldments |
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2012
- 2012-07-31 CN CN2012102700911A patent/CN102744531A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11140570A (en) * | 1997-11-06 | 1999-05-25 | Hitachi Ltd | Nickel alloy with high strength and high corrosion resistance, and its production |
| US20070272671A1 (en) * | 2004-01-21 | 2007-11-29 | Mitsubishi Heavy Industries, Ltd. | High Cr Ni-Based Alloy Filler Material and Welding a Rod for Shielded Metal Arc Welding |
| CN101144130A (en) * | 2006-08-08 | 2008-03-19 | 亨廷顿冶金公司 | Welding alloy and articles for use in welding, weldments and method for producing weldments |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104511700A (en) * | 2013-09-26 | 2015-04-15 | 宝山钢铁股份有限公司 | Nickel base alloy welding wire and preparation method thereof |
| CN105312793B (en) * | 2014-07-29 | 2017-05-03 | 中国科学院金属研究所 | 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 |
| CN105312793A (en) * | 2014-07-29 | 2016-02-10 | 中国科学院金属研究所 | 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 |
| CN106181115A (en) * | 2015-04-29 | 2016-12-07 | 海宁瑞奥金属科技有限公司 | Low spatter 9Ni steel nickel-based welding electrode |
| CN105081605A (en) * | 2015-08-03 | 2015-11-25 | 合肥通用机械研究院 | Microalloying 25Cr35NiNb welding wire for ethylene cracking furnace tube |
| CN106541222A (en) * | 2015-09-22 | 2017-03-29 | 中国科学院金属研究所 | The nuclear power nickel-based welding wire of high-temp and high-strength flawless defect and its preparation and use |
| CN105618959A (en) * | 2016-03-11 | 2016-06-01 | 天津滨海雷克斯激光科技发展有限公司 | Novel SL-NiCrMo alloy material for laser welding and fusion cladding of MONEL-K500 alloy |
| CN108441703A (en) * | 2018-03-14 | 2018-08-24 | 太原钢铁(集团)有限公司 | A kind of alkali corrosion resistance nickel-base alloy |
| CN108441703B (en) * | 2018-03-14 | 2020-11-03 | 太原钢铁(集团)有限公司 | Alkali corrosion resistant nickel-based alloy |
| CN112154043A (en) * | 2018-05-23 | 2020-12-29 | 山特维克材料技术公司 | Austenitic nickel-base alloy |
| CN110560961A (en) * | 2019-10-12 | 2019-12-13 | 哈尔滨威尔焊接有限责任公司 | Ta and Nb composite nickel-based welding wire for nuclear power equipment and welding method |
| CN111001964A (en) * | 2019-12-17 | 2020-04-14 | 江苏双勤新能源科技有限公司 | Preparation method and welding process of high-temperature corrosion resistant nickel-based solid welding wire for petrochemical equipment |
| CN113319468A (en) * | 2021-06-16 | 2021-08-31 | 哈尔滨焊接研究院有限公司 | Component design method of nuclear power nickel-based alloy welding wire capable of preventing welding cracks and nuclear power nickel-based alloy welding wire |
| WO2022262188A1 (en) * | 2021-06-16 | 2022-12-22 | 哈尔滨焊接研究院有限公司 | Method for designing components of nuclear power-use nickel-based alloy welding wire for preventing welding cracks, nuclear power-use nickel-based alloy welding wire, and method for detecting welding cracks |
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Application publication date: 20121024 |