CN106011845B - The method of Hastelloy N alloy surface acquisition high-volume fractional reinforced phase - Google Patents
The method of Hastelloy N alloy surface acquisition high-volume fractional reinforced phase Download PDFInfo
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- CN106011845B CN106011845B CN201610535148.4A CN201610535148A CN106011845B CN 106011845 B CN106011845 B CN 106011845B CN 201610535148 A CN201610535148 A CN 201610535148A CN 106011845 B CN106011845 B CN 106011845B
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
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Abstract
The present invention discloses the method that Hastelloy N alloy surface obtains high-volume fractional reinforced phase, includes the following steps: that (1) pre-processes Hastelloy N alloy to obtain pretreated Hastelloy N alloy；(2) silicon powder is pre-processed to obtain pretreated silicon powder；(3) pretreated silicon powder is uniformly spread in into pretreated Hastelloy N alloy surface, laser irradiation is carried out using the molten note technique of laser and scans to obtain the Hastelloy N alloy after laser melts note；(4) the Hastelloy N alloy after the molten note of laser is heat-treated, is then cooled to room temperature.The present invention forms one layer of molten note layer on the surface of Hastelloy N alloy by melting note technology using laser, generates Mo6Ni6C and Ni3Si utilizes Mo6Ni6C and Ni3The mixing humidification of Si improves the abrasive resistance of Hastelloy N alloy surface.
Description
Technical field
The invention belongs to alloy surface processing technology fields, are related to Hastelloy N alloy surface and obtain high-volume fractional
The method of reinforced phase more particularly to a kind of melted using laser infuse technique in Hastelloy N alloy surface acquisition high-volume fractional
The method of reinforced phase.
Background technique
The molten note of laser is a kind of method for being commonly used in and improving material surface abrasive resistance.Hastelloy N alloy exists
Chemical industry equipment, space flight, pharmacy, nuclear industry etc. are widely used, and in many application places, need to improve the wear-resisting of alloy surface
Ability.
Summary of the invention
Technical problems based on background technology, the invention proposes Hastelloy N alloy surfaces to obtain high volume
The method of score reinforced phase, it forms one layer of molten note layer on the surface of Hastelloy N alloy by melting note technology using laser,
Using the catalytic of silicon, induces Mo, Ni in Hastelloy N alloy and react generation Mo with C6Ni6C, while in Si and molten bath
Ni reaction generates Ni3Si；Mo6Ni6C and Ni3Volume fraction the sum of of both Si in molten note layer can reach 82vol.%, utilize
Mo6Ni6C and Ni3The mixing humidification of Si improves the abrasive resistance of Hastelloy N alloy surface.
The method that the Hastelloy N alloy surface obtains high-volume fractional reinforced phase, it is characterised in that including such as
Lower step:
1) Hastelloy N alloy is pre-processed, obtains pretreated Hastelloy N alloy；
2) silicon powder is pre-processed, obtains pretreated silicon powder；
3) silicon powder pretreated in step 2 is uniformly spread in into the pretreated Hastelloy N alloy table of step 1)
Face carries out laser irradiation using the molten note technique of laser and scans to obtain the Hastelloy N alloy after laser melts note, silicon powder and matrix
Surface layer consolidation together induces Mo, Ni in Hastelloy N alloy and reacts generation Mo with C using the catalytic of silicon6Ni6C；?
Nickel synchronous reaction during this in silicon and molten bath generates Ni3Si.After molten note, in the molten of Hastelloy N alloy surface
Infuse Mo in layer6Ni6C、Ni3Si is evenly distributed.Under suitable molten note technique, Mo in note layer is melted6Ni6C and Ni3The volume of both Si
The sum of score reaches 82vol.%；
4) the Hastelloy N alloy after the molten note of the laser of step 3) is heat-treated, then cools to room temperature, that is, exists
Hastelloy N alloy surface obtains reinforced phase.
The method that the Hastelloy N alloy surface obtains high-volume fractional reinforced phase, it is characterised in that step 1)
The middle pretreated concrete operations of Hastelloy N alloy are as follows: Hastelloy N alloy is clear using acetone soln progress ultrasonic wave
It washes, then heated-air drying.
The method that the Hastelloy N alloy surface obtains high-volume fractional reinforced phase, it is characterised in that step 2
The middle pretreated concrete operations of silicon powder are as follows: the sulfuric acid solution that volumetric concentration is 40% ~ 60% is added in silicon powder and carries out oxidation cleaning, then
It is cleaned with the hydrogen fluoride solution that volumetric concentration is 5% ~ 15%, then being rinsed with ethanol solution to pH is 6.5, and then nitrogen is dry
It is dry.
The method that the Hastelloy N alloy surface obtains high-volume fractional reinforced phase, it is characterised in that step 2
Middle silicon powder average grain diameter is 50 μm.
The method that the Hastelloy N alloy surface obtains high-volume fractional reinforced phase, it is characterised in that step 3)
In pretreated silicon powder uniformly spread in the sprawling with a thickness of 0.5 ~ 1mm of pretreated Hastelloy N alloy surface.
The method that the Hastelloy N alloy surface obtains high-volume fractional reinforced phase, it is characterised in that step 3)
Laser irradiation scanning in, I=2 ~ 4A；V=150~200mm/min.
The method that the Hastelloy N alloy surface obtains high-volume fractional reinforced phase, it is characterised in that step 4)
Middle heat treatment temperature is 600 ~ 700 DEG C, and the time of heat treatment is 5 ~ 10 hours, is answered for eliminating the heat generated during molten note
Power.
By using above-mentioned technology, compared with prior art, the beneficial effects are mainly reflected as follows: the present invention is directed to
It is non-fusible during the molten note of the reinforced phases such as SiC, WC in the molten note of traditional laser, lead to reinforced phase in the molten note layer eventually formed
Volume fraction is no more than the problem of 40vol.%, chooses material of the silicon powder as molten note when, is scanned and is allowed to and base by laser irradiation
Surface layer consolidation together induces Mo, Ni in Hastelloy N alloy and reacts generation Mo with C using the catalytic of silicon6Ni6C；
Silicon is reacted with the Ni in molten bath in this process generates Ni3Si, after melting note, in the molten note of Hastelloy N alloy surface
Mo in layer6Ni6C、Ni3Si reinforced phase is evenly distributed, and by melting Mo in note layer under suitable molten note technique6Ni6C and Ni3Si
The sum of volume fraction of the two can reach 82vol.%, it is by melting note technology on the surface of Hastelloy N alloy using laser
One layer of molten note layer is formed, Mo is utilized6Ni6C and Ni3The mixing humidification of Si improves the wear-resisting of Hastelloy N alloy surface
Ability.
Detailed description of the invention
Fig. 1 is the assembling schematic diagram in the embodiment of the present invention 3 before the molten note of step (3) laser；
Fig. 2 is that step (3) obtains the schematic diagram of the Hastelloy N alloy after the molten note of laser in the embodiment of the present invention 3.
In figure: 1- Si powder, 2-Hastelloy N alloy, 3-Mo6Ni6C, 4-Ni3Si, 5- matrix.
Fig. 3 is that the SEM of Hastelloy N alloy surface reinforced phase schemes.
Fig. 4 is wearability experimental result picture, it can be seen from the figure that the depth of the molten note rear surface scratch of laser obviously becomes
It is small.
Specific embodiment
In the following, technical solution of the present invention is described in detail by specific embodiment.
Embodiment 1
The method that Hastelloy N alloy surface proposed by the present invention obtains high-volume fractional reinforced phase, including walk as follows
It is rapid:
(1) Hastelloy N alloy is subjected to ultrasonic cleaning using acetone soln, then heated-air drying is pre-processed
Hastelloy N alloy afterwards；
(2) sulfuric acid solution that volumetric concentration is 50% is added in the silicon powder that average grain diameter is 50 μm and carries out oxidation cleaning, then used
The hydrogen fluoride solution that volumetric concentration is 10% is cleaned, and then being rinsed with ethanol solution to pH is 6.5, and then nitrogen is dry
To pretreated silicon powder；
(3) pretreated silicon powder is uniformly spread in into pretreated Hastelloy N alloy surface, sprawl with a thickness of
0.5mm carries out the Hastelloy N alloy after laser irradiation scans to obtain the molten note of laser using the molten note technique of laser, and I=4A, V=
150mm/min；
(4) the Hastelloy N alloy after the molten note of laser is heat-treated, the temperature of heat treatment is 700 DEG C, heat treatment
Time be 5h, then cool to room temperature.
Embodiment 2
The method that Hastelloy N alloy surface proposed by the present invention obtains high-volume fractional reinforced phase, including walk as follows
It is rapid:
(1) Hastelloy N alloy is subjected to ultrasonic cleaning using acetone soln, then heated-air drying is pre-processed
Hastelloy N alloy afterwards；
(2) sulfuric acid solution that volumetric concentration is 50% is added in the silicon powder that average grain diameter is 50 μm and carries out oxidation cleaning, then used
The hydrogen fluoride solution that volumetric concentration is 10% is cleaned, and then being rinsed with ethanol solution to pH is 6.5, and then nitrogen is dry
To pretreated silicon powder；
(3) pretreated silicon powder is uniformly spread in into pretreated Hastelloy N alloy surface, sprawl with a thickness of
1mm carries out the Hastelloy N alloy after laser irradiation scans to obtain the molten note of laser using the molten note technique of laser, and I=2A, V=
200mm/min；
(4) the Hastelloy N alloy after the molten note of laser is heat-treated, the temperature of heat treatment is 600 DEG C, heat treatment
Time be 10h, then cool to room temperature.
Embodiment 3
The method that Hastelloy N alloy surface proposed by the present invention obtains high-volume fractional reinforced phase, including walk as follows
It is rapid:
(1) 50mm × 50mm × 4mm Hastelloy N alloy is subjected to ultrasonic cleaning using acetone soln, then
Heated-air drying obtains pretreated Hastelloy N alloy；
(2) sulfuric acid solution that volumetric concentration is 50% is added in the silicon powder that average grain diameter is 50 μm and carries out oxidation cleaning, then used
The hydrogen fluoride solution that volumetric concentration is 10% is cleaned, and then being rinsed with ethanol solution to pH is 6.5, and then nitrogen is dry
To pretreated silicon powder；
3) pretreated silicon powder 1 is uniformly spread in into pretreated 2 surface of Hastelloy N alloy, sprawls thickness
For 1mm, as shown in Figure 1；Then laser irradiation is carried out using the molten note technique of laser to scan to obtain the Hastelloy after laser melts note
N alloy, as shown in Fig. 2, in laser irradiation scanning process, I=3A, V=180mm/min；
(4) the Hastelloy N alloy after the molten note of laser is heat-treated, the temperature of heat treatment is 680 DEG C, heat treatment
Time be 7h, then cool to room temperature.
In 3 step of embodiment (4), Si powder melts simultaneously with Hastelloy N alloy surface, after series reaction
A large amount of Mo is formed in molten infuse in layer6Ni6C 3 and Ni3Si 4, and be uniformly distributed in molten note layer, it is sent out by microstructure observation
Exist in the existing molten note layer of alloy surface without elemental silicon, silicon is reacted with matrix 5 completely.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (7)
- The method of 1.Hastelloy N alloy surface acquisition high-volume fractional reinforced phase, it is characterised in that include the following steps:1) Hastelloy N alloy is pre-processed, obtains pretreated Hastelloy N alloy；2) silicon powder is pre-processed, obtains pretreated silicon powder；3) silicon powder pretreated in step 2 is uniformly spread in into the pretreated Hastelloy N alloy surface of step 1), adopted Laser irradiation is carried out with the molten note technique of laser to scan to obtain the Hastelloy N alloy after laser melts note；4) the Hastelloy N alloy after the molten note of the laser of step 3) is heat-treated, then cools to room temperature, that is, exists Hastelloy N alloy surface obtains reinforced phase.
- 2. the method that Hastelloy N alloy surface according to claim 1 obtains high-volume fractional reinforced phase, feature Be the pretreated concrete operations of Hastelloy N alloy in step 1) are as follows: by Hastelloy N alloy using acetone soln into Row ultrasonic cleaning, then heated-air drying.
- 3. the method that Hastelloy N alloy surface according to claim 1 obtains high-volume fractional reinforced phase, feature It is the pretreated concrete operations of silicon powder in step 2 are as follows: the sulfuric acid solution that volumetric concentration is 40% ~ 60% is added in silicon powder and is carried out Oxidation cleaning, then cleaned with volumetric concentration for 5% ~ 15% hydrogen fluoride solution, is then rinsed to pH with ethanol solution and is 6.5, then nitrogen is dry.
- 4. the method that Hastelloy N alloy surface according to claim 1 obtains high-volume fractional reinforced phase, feature It is in step 2 that silicon powder average grain diameter is 50 μm.
- 5. the method that Hastelloy N alloy surface according to claim 1 obtains high-volume fractional reinforced phase, feature Be pretreated silicon powder in step 3) uniformly spread in pretreated Hastelloy N alloy surface sprawl with a thickness of 0.5~1mm。
- 6. the method that Hastelloy N alloy surface according to claim 1 obtains high-volume fractional reinforced phase, feature It is in the laser irradiation scanning of step 3), I=2 ~ 4A；V=150~200mm/min.
- 7. the method that Hastelloy N alloy surface according to claim 1 obtains high-volume fractional reinforced phase, feature It is in step 4) that heat treatment temperature is 600 ~ 700 DEG C, the time of heat treatment is 5 ~ 10 hours.
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Citations (5)
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|---|---|---|---|---|
| DE19643029A1 (en) * | 1996-10-18 | 1998-04-23 | Bayerische Motoren Werke Ag | Method for coating an internal combustion engine component made of an aluminum alloy with silicon |
| CN102534467A (en) * | 2012-02-22 | 2012-07-04 | 浙江理工大学 | Method for preparing high-silicon coating on aluminum alloy surface |
| CN104099609A (en) * | 2014-06-26 | 2014-10-15 | 华中科技大学 | Surface modification method for medical titanium alloy |
| CN105483696A (en) * | 2015-12-28 | 2016-04-13 | 浙江工业大学 | Method for enhancing surface abrasive resistance of Hastelloy N through laser cladding |
| CN105506618A (en) * | 2013-10-10 | 2016-04-20 | 天津大学 | Method for improving performance of 42CrMo steel in laser cladding |
-
2016
- 2016-07-08 CN CN201610535148.4A patent/CN106011845B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19643029A1 (en) * | 1996-10-18 | 1998-04-23 | Bayerische Motoren Werke Ag | Method for coating an internal combustion engine component made of an aluminum alloy with silicon |
| CN102534467A (en) * | 2012-02-22 | 2012-07-04 | 浙江理工大学 | Method for preparing high-silicon coating on aluminum alloy surface |
| CN105506618A (en) * | 2013-10-10 | 2016-04-20 | 天津大学 | Method for improving performance of 42CrMo steel in laser cladding |
| CN104099609A (en) * | 2014-06-26 | 2014-10-15 | 华中科技大学 | Surface modification method for medical titanium alloy |
| CN105483696A (en) * | 2015-12-28 | 2016-04-13 | 浙江工业大学 | Method for enhancing surface abrasive resistance of Hastelloy N through laser cladding |
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