CN104233282A - Nickel base alloy powder for repairing turbocharger wheel disc of internal combustion engine - Google Patents

Nickel base alloy powder for repairing turbocharger wheel disc of internal combustion engine Download PDF

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Publication number
CN104233282A
CN104233282A CN201310244909.7A CN201310244909A CN104233282A CN 104233282 A CN104233282 A CN 104233282A CN 201310244909 A CN201310244909 A CN 201310244909A CN 104233282 A CN104233282 A CN 104233282A
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alloy powder
wheel disc
combustion engine
internal combustion
base alloy
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CN201310244909.7A
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CN104233282B (en
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朴新欣
陈江
张静波
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Beijing Dalu Tianrui Laser Engineering Technology Co ltd
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DALU LASER TECHNOLOGY Co Ltd SHENYANG
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Abstract

The invention discloses nickel base alloy powder for repairing a turbocharger wheel disc of an internal combustion engine. The nickel base alloy powder comprises Cr, Mo, Ni, Y2O3 and Hf and is characterized by also comprising W, Si, Mn, Co and Fe, wherein all the components are shown as follows in percentage by mass: 0.1-0.5% of C, 9-11% of Cr, 16-20% of Mo, 5-7% of W, 3-7% of Ti, 1-3% of Al, 0.3-0.7% of B, 0.4-0.6% of Si, 0.3-0.5% of Y2O3, 0.2-0.4% of Ce and the balance of Ni. By using the nickel base alloy powder, the crack resistance, moldability, process stability and component uniformity of the alloy powder in a laser cladding layer are improved, and the requirement of a repaired part to comprehensive performances such as the corrosion resistance, wear resistance, fatigue resistance and moderate hardness of the laser cladding layer is met.

Description

A kind of Co-based alloy powder repaired for wheel disc of turbocharger of internal combustion engine
Technical field
The present invention relates to a kind of alloy powder material being suitable for laser melting coating, particularly relate to a kind of Co-based alloy powder repaired for wheel disc of turbocharger of internal combustion engine, belong to C23C24/10 (2006.01) the I technical field in IPC International Patent Classification (IPC).
Background technology
Turbo-supercharger is a kind of machinery that ultra-high speed rotates in hot environment, its parts turbine disk working speed can reach 10000 ~ 20000 revs/min, the machinery of high speed rotating like this often causes damage because installing and using improper, makes user suffer certain financial loss.May cause the accident because of vibration owing to there is gap during blade assernbling on the turbine disk when high speed rotating; institute thinks stator blades; to be everlasting riveter point after blade assernbling on the falcon tooth of both sides with fastening blade; but riveting point usually can cause stress concentration when high speed rotating, thus cause that wheel disc lost efficacy, crackle and accidents caused appears in tenon tooth.Therefore, certain mode must be taked to carry out recovery maintenance to riveting point.
The Electric Welding Buttering Technique mode of current employing, all can inevitably produce large thermal distortion, all can not bear for this high-accuracy parts of the turbine disk.
Therefore, selecting suitable turbo-supercharger wheel disc restorative procedure, ensure that the mismachining tolerance of turbo-supercharger wheel disc after repairing is little, thermal distortion is little, standardization is strong, wheel disc performance after reparation is good, is current problem urgently to be resolved hurrily.
Laser melting coating recovery technique, as the re-manufacturing technology of a kind of advanced person, obtains in recent years and promotes rapidly and widespread use.
At present, the traditional technologys such as the many employing sprayings of corrosion protection coating both domestic and external, surfacing obtain, and the corrosion protection coating that these traditional technologys obtain has some to be difficult to the problem overcome.Such as: preservative coat actual work ergosphere is very thin; Defects such as manufacturing in coating procedure and easily produce pore, be mingled with; Coating and mother metal bonding surface are non-metallurgical binding, and coating easily occurs problems such as coming off.Adopt laser melting and coating technique to manufacture corrosion protection coating then can effectively overcome the above problems, and greatly reduce the processing condition requirement manufacturing corrosion protection coating, reduce cost simultaneously.
Laser melting coating, as the re-manufacturing technology of a kind of advanced person, along with improving constantly of laser power and stability, obtains and promotes rapidly and widespread use.Laser melting coating obtains in metallic surface to be combined with matrix strong metallurgical, and the advanced re-manufacturing technology of the high performance surface coating of the defect such as pore-free, crackle, it can by the substrate surface of dystectic alloy material cladding in low melting point, also high performance top coat can be prepared on low-cost substrates, to replace senior, high performance integral material in a large number, save noble metal, reduce component cost.Laser melting coating solves many ordinary methods and is difficult to process the problem maybe cannot processed, and for product remanufacturing provides, a kind of technology is unique, advanced effective means.
But, the powdered alloy that laser melting coating is special is in the market actually rare, and the powdered alloy that the traditional technology such as surfacing, spraying uses, allocated by different ratios, and with various Ni-based, cobalt-based, the iron(-)base powder needed for the preparation of the form of powder mixing machine.These hybrid alloys powder exist such as mix uneven, granularity difference is large, fusing point is different, composition tolerances, the coefficient of expansion not parity problem, to cause in actual cladding uncontrollable crackle, pore, segregation, performance unstable, not easily machine the defect such as to add.
People have made some progress in research and utilization laser melting and coating technique carries out needed for equipment unit reparation alloy powder material in recent years, such as.
Publication number is " a kind of powdery alloy processing material in site by movable laser smelt-coating process " that the Chinese invention patent application of CN1854317 provides, this alloy powder material utilizes following elemental composition to strengthen nickel-base alloy: Cr, W, Mo, Al, Ti, Co, Co, C, N, Nb, Cu, B, Si and trace rare-earth element can also be added, wherein, rare earth element can be Ce, Y, Hf.
Publication number is " a kind of high-hardness stainless steel alloy powder for laser remelted and the preparation technology " that the Chinese invention patent application of CN101381868 provides, and each Ingredient Wt per-cent of this powdered alloy is: C:0.5-0.8%; Cr:18-24%; Ni:11-17%; B:2.0-5.5%; Si:2.0-6.0%; Mo:4-9%; CeO 2: 1-5%; Fe surplus.The preparation technology of powdered alloy comprises: batching, melting, slag making and deoxidation, powder by atomization, powder collection and composition detection, sieve in six steps.
Publication number is " alloy powder special for laser-remelted high hardness crackless iron-base alloy " that the Chinese invention patent application of CN101381869 provides, the formula of this special metals powder, weight percentage: carbon (C): 0.3-0.5; Silicon (Si): 1.2-2.0; Boron (B): 0.4-1.0; Nickel (Ni): 1.5-2.5; Chromium (Cr): 1.0-1.5; Manganese (Mn): 1.0-1.5; Molybdenum (Mo): 1.5-2.5; Vanadium (V): 0.15-0.7; Niobium (Nb): 0.15-0.7 surplus is iron (Fe), and its weight sum is 100%.
Publication number is " a kind of laser cladding Co-based alloy powder for conductor roll " that the Chinese invention patent application of CN101187022 provides, and the weight percent of the chemical composition of this powdered alloy is: Cr:24 ~ 30%; W:6 ~ 10%; Mo:3 ~ 6%; Ni:6 ~ 12%; Fe:2 ~ 10%; Mn:0.5 ~ 2%; Si:0.2 ~ 2%; V:0.1 ~ 0.6%; B:0.3 ~ 1.5%; C:0.5 ~ 2.5%; Y 2o 3: 0 ~ 0.5%; Hf:0 ~ 0.5%; La 2o 3: 0 ~ 0.5%; Ce:0 ~ 0.5%; Surplus is Co.
Though these powdered alloys for laser melting coating that technique scheme provides can obtain certain technique effect on the specific equipment unit of reparation, but owing to having self technology characteristics, can't meet and be applicable to the processing requirement of other specific base material laser melting coating, while particularly can not meeting the splitting resistance of powdered alloy in laser cladding layer, formability, technology stability and homogeneity of ingredients, also will meet the requirement of the antiseptic property to cladding layer.
Therefore, what research and development made new advances have antiseptic power, the anticorrosive coating nickel-based alloy powder for laser cladding of stable performance, be the key subjects in described technical field, retrieve verification through the applicant: the relevant report that there is no this respect both at home and abroad.
Summary of the invention
The object of the present invention is to provide a kind of have antiseptic power, the anticorrosive coating nickel-based alloy powder for laser cladding of stable performance, manufacture corrosion protection coating for adopting the method for laser melting coating.This Co-based alloy powder is on existing NI-CR-MO alloy basis, at least adds trace rare-earth element Y 2o 3matrix grain-boundary strengthening is carried out with a kind of in Hf element, particularly the one of also at least adding in W, Co, Si, Mn element carries out alloy substrate strengthening, thus solve and improve the splitting resistance of powdered alloy in laser cladding layer, formability, technology stability and homogeneity of ingredients, meet that remanufactured component is anti-corrosion to cladding layer, wear-resisting, the over-all properties requirement of antifatigue and moderate hardness etc.
The technical scheme that the present invention provides is: this Co-based alloy powder repaired for wheel disc of turbocharger of internal combustion engine, its composition includes Cr, Mo, Ni, Y 2o 3, Hf, be characterized in also including W, Si, Mn, Co, Fe, wherein (mass percent) of each component is.
C:0.1~0.5%;Cr:9~11%;Mo:16~20%;W:5~7%;Ti:3~7%。
Al:1~3%;B:0.3~0.7%;Si:0.4~0.6%;Y 2O 3:0.3~0.5%;Ce:0.2~0.4%。
Ni: surplus.
(mass percent) of each component of this preferred Co-based alloy powder that the present invention provides is.
C:0.2%;Cr:10%;Mo:19%;W:5%;Ti:4%;?Al:1%。
B:0.5%; Si:0.5%; Y 2o 3: 0.3%; Ce:0.2%; Ni: surplus.
(mass percent) of each component of this preferred Co-based alloy powder that the present invention provides is.
C:0.3;Cr:?11%;Mo:18%;W:6%;Ti:5%;?Al:2%。
B:0.6%; Si:0.4%; Y 2o 3: 0.4%; Ce:0.3%; Ni: surplus.
The present invention is by a large amount of tests and creationary work, selected alloy substrate strengthening element, boundary-strengthening element and dispersoid particle material, and the degree of preferred each component, by multiple strengthening means, reinforced alloys matrix, turn to improves grain boundary quality, alloy is made to obtain good over-all properties, thus achieve alloy while there is moderate hardness and intensity, again reduce alloy melting point, add wear-resisting, corrosion resisting property.Fundamentally solve and improve the splitting resistance of powdered alloy in laser cladding layer, formability, technology stability and homogeneity of ingredients, meeting that remanufactured component is anti-corrosion to cladding layer, wear-resisting, the over-all properties requirement of antifatigue and moderate hardness etc.
What the present invention provided have antiseptic power, the anticorrosive coating nickel-based alloy powder for laser cladding of stable performance prepared meticulously by operations such as vacuum melting, vacuum aerosolization, screenings, granularity is-100+270 order.
What the present invention provided have antiseptic power, the anticorrosive coating nickel-based alloy powder for laser cladding of stable performance, in actual cladding operation, adopt 5KW CO 2laser apparatus, described in wheel disc of turbocharger of internal combustion engine cladding, the processing parameter of powdered material is: power: 1800 ~ 3800W, focal length: 320 ~ 400mm, spot diameter: 3 ~ 6mm, and sweep velocity: 240 ~ 600mm/min puts powder thickness: 0.3 ~ 1mm.
The present invention have antiseptic power, the anticorrosive coating nickel-based alloy powder for laser cladding material of stable performance, be mainly used in the laser melting coating corrosion protection coating of wheel disc of turbocharger of internal combustion engine.
Compared with prior art, the invention has the beneficial effects as follows: on NI-CR-MO alloy basis, add alloy substrate strengthening element, boundary-strengthening element and dispersoid particle material, and adjust the degree of each element.By multiple strengthening means, reinforced alloys matrix, turn to improves grain boundary quality, makes alloy obtain good over-all properties.Thus achieve alloy while there is moderate hardness and intensity, again reduce alloy melting point, add wear-resisting, corrosion resisting property.Fundamentally solve and improve the splitting resistance of powdered alloy in laser cladding layer, formability, technology stability and homogeneity of ingredients, meeting that remanufactured component is anti-corrosion to cladding layer, wear-resisting, the over-all properties requirement of antifatigue and moderate hardness etc.
Embodiment
Embodiment 1.
Use 5KW CO 2laser apparatus, combustion motor turbo-supercharger wheel disc carries out laser melting coating.The mass percent of the Co-based alloy powder alloying element of design is.
C:0.2%; Cr:10%; Mo:19%; W:5%; Ti:4%; Al:1%; B:0.5%; Si:0.5%; Y 2o 3: 0.3%; Ce:0.2%; Ni: surplus.
Its melting and coating process parameter is: power: 1800 ~ 3800W, focal length: 320 ~ 400mm, spot diameter: 3 ~ 6mm, and sweep velocity: 240 ~ 600mm/min puts powder thickness: 0.3 ~ 1.0mm.
Embodiment 2.
Use 5KW CO 2laser apparatus, combustion motor turbo-supercharger wheel disc carries out laser melting coating.The mass percent of the Co-based alloy powder alloying element of design is.
C:0.3; Cr:11%; Mo:18%; W:6%; Ti:5%; Al:2%; B:0.6%; Si:0.4%; Y 2o 3: 0.4%; Ce:0.3%; Ni: surplus.
Its melting and coating process parameter is: power: 1800 ~ 3800W, focal length: 320 ~ 400mm, spot diameter: 3 ~ 6mm, and sweep velocity: 240 ~ 600mm/min puts powder thickness: 0.3 ~ 1.0mm.

Claims (3)

1., for the Co-based alloy powder that wheel disc of turbocharger of internal combustion engine is repaired, its composition includes Cr, Mo, Ni, Y 2o 3, Hf, characterized by further comprising W, Si, Mn, Co, Fe, wherein (mass percent) of each component is:
C:0.1~0.5%;Cr:9~11%;Mo:16~20%;W:5~7%;
Ti:3~7%;?Al:1~3%;B:0.3~0.7%;Si:0.4~0.6%;
Y 2o 3: 0.3 ~ 0.5%; Ce:0.2 ~ 0.4%; Ni: surplus.
2. the Co-based alloy powder repaired for wheel disc of turbocharger of internal combustion engine according to claim 1, it is characterized in that (mass percent) of each component in preferred Co-based alloy powder end is:
C:0.2%;Cr:10%;Mo:19%;W:5%;Ti:4%;?Al:1%;
B:0.5%; Si:0.5%; Y 2o 3: 0.3%; Ce:0.2%; Ni: surplus.
3. the Co-based alloy powder repaired for wheel disc of turbocharger of internal combustion engine according to claim 1, is characterized in that (mass percent) of each component in preferred Co-based alloy powder end is:
C:0.3;Cr:?11%;Mo:18%;W:6%;Ti:5%;?Al:2%;
B:0.6%; Si:0.4%; Y 2o 3: 0.4%; Ce:0.3%; Ni: surplus.
CN201310244909.7A 2013-06-20 2013-06-20 A kind of Co-based alloy powder repaired for wheel disc of turbocharger of internal combustion engine Active CN104233282B (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104831123A (en) * 2015-05-26 2015-08-12 广东电网有限责任公司电力科学研究院 Anticorrosion coating, powder raw materials thereof and production method and application of anticorrosion coating
CN104862693A (en) * 2015-04-24 2015-08-26 燕山大学 Laser cladding repair method of tower wheel of wire drawing machine
CN105506616A (en) * 2015-12-14 2016-04-20 西安文理学院 Laser cladding nickel base alloy powder for repairing damaged blower vane and repair method
CN106435580A (en) * 2016-11-25 2017-02-22 福州大学 Nickel-based molybdenum disulfide powder for laser cladding and preparing method and application method of nickel-based molybdenum disulfide powder
CN106854717A (en) * 2015-12-08 2017-06-16 沈阳大陆激光技术有限公司 A kind of laser manufactures the Co-based alloy powder of ejection roller way of continuous casting machine
CN111250900A (en) * 2020-02-24 2020-06-09 江西恒大高新技术股份有限公司 Preparation method of modified Inconel625 powder surfacing coating
CN113308629A (en) * 2021-06-01 2021-08-27 石家庄铁道大学 Nickel-based alloy powder for petroleum plunger laser cladding and application method
CN115351271A (en) * 2022-08-31 2022-11-18 国家电投集团江西水电检修安装工程有限公司 Impeller corrosion-resistant coating powder, impeller corrosion-resistant coating and preparation method thereof

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JPS5891145A (en) * 1981-11-24 1983-05-31 Toshiba Tungaloy Co Ltd Titanium oxide-base colored sintered alloy
CN101838758A (en) * 2010-05-24 2010-09-22 苏州大学 Cobalt-free nickel-based alloy
CN102021562A (en) * 2009-09-17 2011-04-20 沈阳大陆激光技术有限公司 Method for repairing damage of wheel disc of turbocharger of internal combustion engine
CN102031513A (en) * 2009-09-28 2011-04-27 沈阳大陆激光技术有限公司 Restoring method of last-stage blade of steam turbine

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CN102021562A (en) * 2009-09-17 2011-04-20 沈阳大陆激光技术有限公司 Method for repairing damage of wheel disc of turbocharger of internal combustion engine
CN102031513A (en) * 2009-09-28 2011-04-27 沈阳大陆激光技术有限公司 Restoring method of last-stage blade of steam turbine
CN101838758A (en) * 2010-05-24 2010-09-22 苏州大学 Cobalt-free nickel-based alloy

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104862693A (en) * 2015-04-24 2015-08-26 燕山大学 Laser cladding repair method of tower wheel of wire drawing machine
CN104831123A (en) * 2015-05-26 2015-08-12 广东电网有限责任公司电力科学研究院 Anticorrosion coating, powder raw materials thereof and production method and application of anticorrosion coating
CN106854717A (en) * 2015-12-08 2017-06-16 沈阳大陆激光技术有限公司 A kind of laser manufactures the Co-based alloy powder of ejection roller way of continuous casting machine
CN105506616A (en) * 2015-12-14 2016-04-20 西安文理学院 Laser cladding nickel base alloy powder for repairing damaged blower vane and repair method
CN106435580A (en) * 2016-11-25 2017-02-22 福州大学 Nickel-based molybdenum disulfide powder for laser cladding and preparing method and application method of nickel-based molybdenum disulfide powder
CN106435580B (en) * 2016-11-25 2019-04-23 福州大学 The Ni-based molybdenum disulfide powder of laser melting coating, and preparation method thereof and application method
CN111250900A (en) * 2020-02-24 2020-06-09 江西恒大高新技术股份有限公司 Preparation method of modified Inconel625 powder surfacing coating
CN113308629A (en) * 2021-06-01 2021-08-27 石家庄铁道大学 Nickel-based alloy powder for petroleum plunger laser cladding and application method
CN115351271A (en) * 2022-08-31 2022-11-18 国家电投集团江西水电检修安装工程有限公司 Impeller corrosion-resistant coating powder, impeller corrosion-resistant coating and preparation method thereof
CN115351271B (en) * 2022-08-31 2024-01-26 国家电投集团江西水电检修安装工程有限公司 Impeller corrosion-resistant coating powder, impeller corrosion-resistant coating and preparation method thereof

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Address after: No. 102, Office Building, No. A3, Gucheng North Road, Shijingshan District, Beijing, 100043

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Patentee before: Shenyang Dalu Laser Technology Co.,Ltd.