CN1191383C - Instantaneous liquid-phase diffusion welding iron base amorphous interlayer alloy - Google Patents
Instantaneous liquid-phase diffusion welding iron base amorphous interlayer alloy Download PDFInfo
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- CN1191383C CN1191383C CNB021353360A CN02135336A CN1191383C CN 1191383 C CN1191383 C CN 1191383C CN B021353360 A CNB021353360 A CN B021353360A CN 02135336 A CN02135336 A CN 02135336A CN 1191383 C CN1191383 C CN 1191383C
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- middle layer
- phase diffusion
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- diffusion welding
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Abstract
The present invention discloses an instantaneous liquid-phase diffusion welding iron base intermediate layer alloy, which is prepared from the elements of 33 to 56 wt % of Fe, 30 to 47 wt % of Ni, 2 to 7 wt % of Cr, 3 to 8 wt % of Si and 1 to 10 wt % of B. The present invention can be used for instantaneous liquid phase diffusion welding of carbon steel, stainless steel and Cr-Mo heat-resistant steel.
Description
Technical field
The present invention relates to a kind of Fe-based amorphous middle layer alloy, be specially adapted to the Fe-based amorphous middle layer alloy of instantaneous liquid-phase diffusion welding.
Background technology
Instantaneous liquid-phase diffusion welding is to utilize the atomic diffusion that occurs on the interface and the method for joining of realizing.Be lower than under the temperature of fusion of mother metal, utilize self melting of middle layer, between the mating surface of workpiece, form skim liquid, the element that reduces fusing point in the liquid phase spreads to mother metal fast, dystectic element is to the middle layer dissolving that becomes liquid phase in the mother metal, this just makes be that to reduce the concentration of fusing point element in the middle layer of liquid phase more and more lower, and the fusing point of solution is corresponding more and more higher thereupon, finishes welding process until the generation isothermal solidification.Be the carrying out of diffusion process, make the composition at junction surface be tending towards evenly and near mother metal.The middle layer is a key of implementing liquid-phase diffusion welding, the selection of middle layer alloying constituent directly influences welding quality, when selecting the concrete composition of middle layer alloy, selection for matrix element, the composition that generally will consider the middle layer alloy will approach mother metal, but its fusing point should be lower than mother metal, and intensity should be than mother metal height.Usually when carrying out instantaneous liquid-phase diffusion welding, all be to select the middle layer alloy according to materials to be welded, as to weld the Fe-Si-B that carbon steel uses be amorphous metal paper tinsel band, the Ni-Cr-Si-B that soldering stainless steel is used is an amorphous metal paper tinsel band, the Fe-Cr-Si-Mo-B that welding Cr-Mo high temperature steel is used is an amorphous metal paper tinsel band etc., and different steel grade welding need different middle layer alloys.
Summary of the invention
The object of the present invention is to provide a kind of Fe-based amorphous middle layer alloy, can realize instantaneous liquid-phase diffusion welding iron-based middle layer alloy carbon steel, stainless steel, Cr-Mo series heat-resistant steel steel of the same race or dissimilar steel welding.
The technical solution adopted for the present invention to solve the technical problems is: Fe-based amorphous middle layer alloy, the content of its each element (weight percent) is: Fe33%～56%, Ni30%～47%, Cr2%～＜5.87%, Si3%～8%, B1%～10%.
The fusing point of Fe-based amorphous middle layer alloy is 1050 ℃～1150 ℃.
Its preparation method is that each component weight percent is in accordance with regulations mixed; melting in vacuum induction furnace; alloy after the melting is packed in the quartz crucible; under the protection of high-purity Ar gas, use the high-frequency induction furnace remelting; after reaching suitable temperature; with the Ar gas of certain pressure with fused solution alloy spray to cast on the high speed rotating red copper roller of any surface finish, chilling just can obtain the iron based amorphous metal paper tinsel band that thickness is 0.02～0.06mm.
Fe-based amorphous middle layer of the present invention alloy has identical matrix element iron with carbon steel, stainless steel and Cr-Mo series heat-resistant steel, make between middle layer and the mother metal good wetting property is arranged, reduce the discontinuous of composition and tissue, strengthened the bonding force in mother metal and middle layer; Iron is element the most cheap in the known metal in addition, can reduce production costs.The matrix element iron of nickel element energy and mother metal dissolves each other, and can improve the bonding force in mother metal and middle layer; Because boron is insoluble to nickel, can improve the velocity of diffusion of boron in iron on the other hand, reduce the generation of fragility boride.Boron, element silicon mainly are that the middle layer fusing point is reduced, and rapid diffusion; Boron, element silicon can make the fusing point in iron-based middle layer be reduced to about 1100 ℃.The interpolation of chromium element can form eutectic structure with the chromium element in stainless steel, the Cr-Mo high temperature steel on the one hand, improves bonding force; Can also improve the oxidation-resistance of joint on the other hand, and make the nickel solution strengthening.But the interpolation of chromium amount is limited, because excessive chromium can make the solubleness of silicon reduce, and forms chromaking boron fragility mutually with boron easily.
In sum, Fe-based amorphous middle layer of the present invention alloy can be finished carbon steel, stainless steel and Cr-Mo heat-resistant steel welding, and applied widely, technology is simple, and low price, and cost is low.
Embodiment
Provide embodiments of the invention and preparation method and effect below.
Embodiment
Fe47.7%, Ni33.5%, Cr6.5%, Si6.6%, B5.7% (weight percent).
Preparation technology of the present invention: according to the set of dispense ratio of embodiment design; various components are mixed back melting in vacuum induction furnace; alloy after the melting is packed in the quartz crucible; under the protection of high-purity Ar gas, use the high-frequency induction furnace remelting; after reaching suitable temperature; with the Ar gas of certain pressure with fused solution alloy spray to cast on the high speed rotating red copper roller of any surface finish, chilling just can obtain the non-crystalline state iron-based middle layer that thickness is 0.03mm.
Embodiment 1
The Fe-based amorphous middle layer alloy of this composition is applied to the instantaneous liquid-phase diffusion welding of 20 carbon steels, and welding temperature is 1200 ℃, and postwelding carries out Mechanics Performance Testing, and the result is: fracture occurs in mother metal, tensile strength sigma during stretching
b=560MPa reaches the tensile strength (σ of mother metal 20 carbon steels
b〉=410MPa); Anti-bending strength, 150 ° do not break (D=3t).
Embodiment 2
The Fe-based amorphous middle layer alloy of this composition is applied to the stainless instantaneous Liquid Phase Diffusion butt welding of TP304H, and welding temperature is 1220 ℃, and postwelding carries out Mechanics Performance Testing, and the result is: fracture occurs in mother metal, tensile strength sigma during stretching
b=750MPa reaches the tensile strength (σ of mother metal TP304H
b〉=515MPa); Anti-bending strength, 150 ° do not break (D=3t).
Embodiment 3
The Fe-based amorphous middle layer alloy of this composition is applied to the instantaneous liquid-phase diffusion welding of T91 high temperature steel, and welding temperature is 1270 ℃, and postwelding carries out Mechanics Performance Testing, and the result is: fracture occurs in mother metal, tensile strength sigma during stretching
b=850MPa reaches the tensile strength (σ of mother metal T91
b〉=585MPa); Anti-bending strength, 150 ° do not break (D=3t).
Claims (3)
1. the Fe-based amorphous middle layer of instantaneous liquid-phase diffusion welding alloy, it is characterized in that: the weight percent of each component is: Fe33%～56%, Ni30%～47%, Cr2%～＜5.87%, Si3%～8%, B1%～10%.
2. by the Fe-based amorphous middle layer of the described instantaneous liquid-phase diffusion welding of claim 1 alloy, it is characterized in that: the Fe-based amorphous middle layer of instantaneous liquid-phase diffusion welding alloy is processed into the paper tinsel band that thickness is 0.02mm～0.06mm.
3. by claim 1 or the Fe-based amorphous middle layer of 2 described instantaneous liquid-phase diffusion weldings alloy, it is characterized in that: the fusing point of the Fe-based amorphous middle layer of said instantaneous liquid-phase diffusion welding alloy is 1050 ℃～1150 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021353360A CN1191383C (en) | 2002-08-02 | 2002-08-02 | Instantaneous liquid-phase diffusion welding iron base amorphous interlayer alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021353360A CN1191383C (en) | 2002-08-02 | 2002-08-02 | Instantaneous liquid-phase diffusion welding iron base amorphous interlayer alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1394978A CN1394978A (en) | 2003-02-05 |
| CN1191383C true CN1191383C (en) | 2005-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB021353360A Expired - Fee Related CN1191383C (en) | 2002-08-02 | 2002-08-02 | Instantaneous liquid-phase diffusion welding iron base amorphous interlayer alloy |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100434225C (en) * | 2005-09-06 | 2008-11-19 | 中国航天科技集团公司第一研究院第七○三研究所 | Composite connecting method with transition liquid phase diffusion welding of intermetallic Ti-Al compound alloy |
| JP5008969B2 (en) * | 2006-01-31 | 2012-08-22 | 新日本製鐵株式会社 | Alloy for liquid phase diffusion bonding |
| CN103920960B (en) * | 2014-05-04 | 2015-12-02 | 长沙威尔保新材料有限公司 | A kind of welding method of ferrous metal |
| CN103920959B (en) * | 2014-05-04 | 2015-12-09 | 长沙威尔保新材料有限公司 | The welding method of ferrous metal |
| US9943927B2 (en) * | 2014-12-02 | 2018-04-17 | Arvinmeritor Technology, Llc | Transient liquid phase joining of dissimilar materials |
| US20180015574A1 (en) * | 2015-03-05 | 2018-01-18 | Hitachi Metals, Ltd. | Brazing alloy powder and joined component |
| CN105345252B (en) * | 2015-12-04 | 2017-11-14 | 南京理工大学 | A kind of welding method of high nitrogen steel |
| CN107824995B (en) * | 2017-09-12 | 2020-04-10 | 青岛理工大学 | Welding method applied to aluminum-containing oxide dispersion strengthened ferrite/martensite steel |
| CN110524082B (en) * | 2019-08-20 | 2021-04-20 | 西安交通大学 | Method for quickly wetting carbon fibers in ceramic matrix composite by taking Fe as active element |
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2002
- 2002-08-02 CN CNB021353360A patent/CN1191383C/en not_active Expired - Fee Related
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