CN110788517A - Steel alloy for welding material - Google Patents
Steel alloy for welding material Download PDFInfo
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- CN110788517A CN110788517A CN201911070444.1A CN201911070444A CN110788517A CN 110788517 A CN110788517 A CN 110788517A CN 201911070444 A CN201911070444 A CN 201911070444A CN 110788517 A CN110788517 A CN 110788517A
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- 229910000851 Alloy steel Inorganic materials 0.000 title claims abstract description 64
- 239000000463 material Substances 0.000 title claims abstract description 41
- 238000003466 welding Methods 0.000 title claims abstract description 35
- 239000000203 mixture Substances 0.000 claims abstract description 22
- 239000012535 impurity Substances 0.000 claims abstract description 16
- 239000000843 powder Substances 0.000 claims description 27
- 239000002245 particle Substances 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 14
- 229910052742 iron Inorganic materials 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 15
- 239000011651 chromium Substances 0.000 description 12
- 239000000654 additive Substances 0.000 description 11
- 230000000996 additive effect Effects 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 11
- 239000010410 layer Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 239000007769 metal material Substances 0.000 description 6
- 238000010146 3D printing Methods 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 229910052748 manganese Inorganic materials 0.000 description 3
- 229910052750 molybdenum Inorganic materials 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 229910052720 vanadium Inorganic materials 0.000 description 3
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000011960 computer-aided design Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000000788 chromium alloy Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
Images
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
- B23K35/3053—Fe as the principal constituent
- B23K35/308—Fe as the principal constituent with Cr as next major constituent
- B23K35/3086—Fe as the principal constituent with Cr as next major constituent containing Ni or Mn
Abstract
The invention provides a steel alloy for welding materials, which comprises the following components in percentage by weight based on the total weight of the composition of the steel alloy: c: 0.05 to 0.35 percent; si: 0.2 to 1.0 percent; mn: 0.3 to 1.0 percent; p: 0.1 to 0.3 percent; s: 0.005-0.015%; cr: 11 to 20 percent; ni: 0.1 to 0.3 percent; mo: 0.001-0.05%; v: 0.5-10%; cu: 0.01 to 0.1 percent; the balance of Fe and inevitable impurities. The steel alloy for the welding material and the composition of the steel alloy have higher hardness and can be used for welding iron base materials.
Description
Technical Field
The present invention relates to a weld metal material, and more particularly to a weld metal material and a composition of the alloy.
Background
In the past half century, the fusion of laser technology, computer technology and new material technology has led to a new era of additive manufacturing (3D printing) technology. The additive manufacturing is a direct near-net forming technology without a mold, and is based on computer aided design/manufacturing, materials are solidified and clad layer by layer or stacked layer by layer and connected into an integral structure by block assembly welding, so that a personalized, customized and miniaturized production mode can be realized.
In terms of the physical concept of machining and manufacturing, welding is a typical example of additive manufacturing, and both a welding rod repair surfacing technology and a numerical control automatic welding technology and additive manufacturing based on a high-energy beam heat source belong to the field of generalized additive manufacturing. The technology basis for the rapid development of the additive manufacturing technology of metal components is the technical progress of taking high-energy beams (electron beams and laser beams) as special welding heat sources, the high-energy beams are very flexible, the energy can be accurately controlled, the high-energy beams are deeply fused with computer-aided design/manufacturing information technology, and metal wires or metal powder is filled into a focusing heating area or paved into the focusing heating area in a vacuum chamber or in an inert gas protection environment, so that the materials are melted and solidified and formed layer by layer.
The additive manufacturing essentially belongs to the field of material processing, commonly used additive manufacturing materials comprise engineering plastics, rubber materials, photosensitive resin, metal, ceramics and the like, wherein the 3D printing technology of the metal materials is developed particularly rapidly, and metal powder used in 3D printing generally requires high purity, good sphericity, narrow particle size distribution and low oxygen content. At present, the metal powder materials applied to 3D printing mainly include titanium alloys, cobalt-chromium alloys, stainless steel, aluminum alloy materials, and the like.
At present, the additive manufacturing of China already has some influential enterprises and brands in the fields of equipment, software and the like, but materials mainly depend on import, and the research and development of additive manufacturing materials with independent intellectual property rights have important significance.
Disclosure of Invention
The invention provides a metal material for welding and a composition of the metal material for welding.
In a first aspect, the present invention provides a composition of a steel alloy for a welding material, comprising, in weight proportions, based on the total weight of the composition:
C：0.05-0.35％；
Si：0.2-1.0％；
Mn：0.3-1.0％；
P：0.1-0.3％；
S：0.005-0.015％；
Cr：11-20％；
Ni：0.1-0.3％；
Mo：0.001-0.05％；
V：0.5-10％；
Cu：0.01-0.1％；
the balance of Fe and inevitable impurities.
The steel alloy composition of the present invention more preferably comprises, in weight proportions, based on the total weight of the composition:
C：0.18-0.30％；
Si：0.4-0.8％；
Mn：0.5-0.8％；
P：0.1-0.25％；
S：0.008-0.015％；
Cr：12-17％；
Ni：0.1-0.2％；
Mo：0.005-0.03％；
V：2-7％；
Cu：0.03-0.08％；
the balance of Fe and inevitable impurities.
The steel alloy composition of the present invention more preferably comprises, in weight proportions, based on the total weight of the composition:
C：0.2-0.25％；
Si：0.55-0.65％；
Mn：0.55-0.65％；
P：0.15-0.20％；
S：0.01-0.015％；
Cr：12-14％；
Ni：0.13-0.16％；
Mo：0.008-0.01％；
V：3-5.5％；
Cu：0.04-0.06％；
the balance of Fe and inevitable impurities.
In a second aspect, the present invention provides a steel alloy for welding materials, which comprises the following components by weight ratio based on the total weight of the steel alloy:
C：0.05-0.35％；
Si：0.2-1.0％；
Mn：0.3-1.0％；
P：0.1-0.3％；
S：0.005-0.015％；
Cr：11-20％；
Ni：0.1-0.3％；
Mo：0.001-0.05％；
V：0.5-10％；
Cu：0.01-0.1％；
the balance of Fe and inevitable impurities.
The steel alloy for the welding material according to the present invention preferably includes powder. Preferably, the powder is entirely elemental powder, or at least comprises elemental powder.
In a more preferred embodiment, the Fe comprises 4-20%, preferably 7-15%, more preferably 10-12% of the total weight of the powder.
In a preferred embodiment, the particle size of the elemental powder is preferably 50 to 250 mesh, more preferably 60 to 200 mesh.
More preferably, the elemental powder described herein may be present in such a manner that a part of the powder has a particle diameter outside the above mesh number range, but the powder weight ratio outside this range cannot exceed 10%.
In a preferred embodiment, the particle size of any two elemental powders may be the same or different.
In the metal material of the present invention, the composition, based on the total weight of the steel alloy, more preferably includes, by weight:
C：0.18-0.30％；
Si：0.4-0.8％；
Mn：0.5-0.8％；
P：0.1-0.25％；
S：0.008-0.015％；
Cr：12-17％；
Ni：0.1-0.2％；
Mo：0.005-0.03％；
V：2-7％；
Cu：0.03-0.08％；
the balance of Fe and inevitable impurities.
In the steel alloy of the present invention, the components, in terms of weight ratio, based on the total weight of the steel alloy, more preferably, include:
C：0.2-0.25％；
Si：0.55-0.65％；
Mn：0.55-0.65％；
P：0.15-0.20％；
S：0.01-0.015％；
Cr：12-14％；
Ni：0.13-0.16％；
Mo：0.008-0.01％；
V：3-5.5％；
Cu：0.04-0.06％；
the balance of Fe and inevitable impurities.
The steel alloy for the welding material and the composition of the steel alloy have higher hardness and can be used for welding forged iron base materials, rolled steel materials and cast iron base materials.
Drawings
Fig. 1 is a schematic structural view of a steel alloy additive manufacturing apparatus for a welding material.
Illustration of the drawings:
1. a laser beam; 2. a steel alloy; 3. a molten pool; 4. and (5) a workpiece.
Detailed Description
The steel alloy for a welding material and the composition of the steel alloy according to the present invention will be described below by way of example with reference to specific examples.
Example 1
In the present example, as shown in fig. 1, the steel alloy 2 for the welding material is in a powder form. And uniformly converging the powdered steel alloy 2 and feeding the powdered steel alloy into the focused laser beam 1, and coaxially coupling and outputting the powder flow and the laser beam 1. The laser beam 1 heats the workpiece 4 into a molten pool 3, the powdered steel alloy 2 is sprayed into the molten pool 3, and the steel alloy 2 is cladded and stacked to form a formed part.
Where steel alloy 2 comprises C, Si, Mn, P, S, Cr, Ni, Mo, V, Cu, it is to be understood that steel alloy 2 may also contain unavoidable impurities. Specifically, the proportions of the components of steel alloy 2 in the total weight of steel alloy 2 are as follows:
C：0.1％；
Si：0.5％；
Mn：0.8％；
P：0.2％；
S：0.01％；
Cr：11％；
Ni：0.2％；
Mo：0.01％；
V：5％；
Cu：0.04％。
example 2
In the present example, as shown in fig. 1, the steel alloy 2 for the welding material is in a powder form. And uniformly converging the powdered steel alloy 2 and feeding the powdered steel alloy into the focused laser beam 1, and coaxially coupling and outputting the powder flow and the laser beam 1. The laser beam 1 heats the workpiece 4 into a molten pool 3, the powdered steel alloy 2 is sprayed into the molten pool 3, and the steel alloy 2 is cladded and stacked to form a formed part.
Where steel alloy 2 comprises C, Si, Mn, P, S, Cr, Ni, Mo, V, Cu, it is to be understood that steel alloy 2 may also contain unavoidable impurities. Specifically, the proportions of the components of steel alloy 2 in the total weight of steel alloy 2 are as follows:
C：0.2％；
Si：0.6％；
Mn：0.7％；
P：0.15％；
S：0.01％；
Cr：14％；
Ni：0.15％；
Mo：0.01％；
V：4％；
Cu：0.05％。
example 3
In the present example, as shown in fig. 1, the steel alloy 2 for the welding material is in a powder form. And uniformly converging the powdered steel alloy 2 and feeding the powdered steel alloy into the focused laser beam 1, and coaxially coupling and outputting the powder flow and the laser beam 1. The laser beam 1 heats the workpiece 4 into a molten pool 3, the powdered steel alloy 2 is sprayed into the molten pool 3, and the steel alloy 2 is cladded and stacked to form a formed part.
Where steel alloy 2 comprises C, Si, Mn, P, S, Cr, Ni, Mo, V, Cu, it is to be understood that steel alloy 2 may also contain unavoidable impurities. Specifically, the proportions of the components of steel alloy 2 in the total weight of steel alloy 2 are as follows:
C：0.25％；
Si：0.65％；
Mn：0.55％；
P：0.10％；
S：0.01％；
Cr：13％；
Ni：0.15％；
Mo：0.01％；
V：5.5％；
Cu：0.05％。
the steel alloy for the welding material according to the above embodiment of the present invention can be used for welding forged iron base materials, rolled steel materials, and cast iron base materials. The post weld hardness without tempering and preheating is shown in table 1.
TABLE 1 results of the Performance test of the Steel alloys for welding materials
| Example 1 | Example 2 | Example 3 | |
| HRC hardness (Single layer) | 52-55 | 52-55 | 52-55 |
| HRC hardness (two layers) | 55-62 | 55-62 | 55-62 |
| Surface smoothness | Is substantially smooth | Is substantially smooth | Is substantially smooth |
The embodiments of the present invention have been described in detail, but the embodiments are merely examples, and the present invention is not limited to the embodiments described above. Any equivalent modifications and substitutions to those skilled in the art are also within the scope of the present invention. Accordingly, equivalent changes and modifications made without departing from the spirit and scope of the present invention should be covered by the present invention.
Claims (10)
1. A composition of a steel alloy for a welding material, comprising, in weight proportions based on the total weight of the composition:
C：0.05-0.35％；
Si：0.2-1.0％；
Mn：0.3-1.0％；
P：0.1-0.3％；
S：0.005-0.015％；
Cr：11-20％；
Ni：0.1-0.3％；
Mo：0.001-0.05％；
V：0.5-10％；
Cu：0.01-0.1％；
the balance of Fe and inevitable impurities.
2. The composition of steel alloy for welding material according to claim 1, comprising, in weight proportions based on the total weight of the composition:
C：0.18-0.30％；
Si：0.4-0.8％；
Mn：0.5-0.8％；
P：0.1-0.25％；
S：0.008-0.015％；
Cr：12-17％；
Ni：0.1-0.2％；
Mo：0.005-0.03％；
V：2-7％；
Cu：0.03-0.08％；
the balance of Fe and inevitable impurities.
3. A composition of steel alloy for welding material according to claim 1 or 2, characterized by comprising, in weight proportions, based on the total weight of the composition:
C：0.2-0.25％；
Si：0.55-0.65％；
Mn：0.55-0.65％；
P：0.15-0.20％；
S：0.01-0.015％；
Cr：12-14％；
Ni：0.13-0.16％；
Mo：0.008-0.01％；
V：3-5.5％；
Cu：0.04-0.06％；
the balance of Fe and inevitable impurities.
4. A steel alloy for welding materials, characterized in that the composition comprises, in weight proportions, based on the total weight of the steel alloy:
C：0.05-0.35％；
Si：0.2-1.0％；
Mn：0.3-1.0％；
P：0.1-0.3％；
S：0.005-0.015％；
Cr：11-20％；
Ni：0.1-0.3％；
Mo：0.001-0.05％；
V：0.5-10％；
Cu：0.01-0.1％；
the balance of Fe and inevitable impurities.
5. A steel alloy for a welding material according to claim 4, characterized in that the composition comprises, in weight proportions, based on the total weight of the steel alloy:
C：0.18-0.30％；
Si：0.4-0.8％；
Mn：0.5-0.8％；
P：0.1-0.25％；
S：0.008-0.015％；
Cr：12-17％；
Ni：0.1-0.2％；
Mo：0.005-0.03％；
V：2-7％；
Cu：0.03-0.08％；
the balance of Fe and inevitable impurities.
6. A steel alloy for a welding material according to claim 4, characterized in that the composition comprises, in weight proportions, based on the total weight of the steel alloy:
C：0.2-0.25％；
Si：0.55-0.65％；
Mn：0.55-0.65％；
P：0.15-0.20％；
S：0.01-0.015％；
Cr：12-14％；
Ni：0.13-0.16％；
Mo：0.008-0.01％；
V：3-5.5％；
Cu：0.04-0.06％；
the balance of Fe and inevitable impurities.
7. A steel alloy for a welding material according to any of the claims 4-6, characterized in that the steel alloy comprises powder, which powder is entirely elemental powder or at least comprises elemental powder.
8. A steel alloy for a welding material according to claim 7, characterized in that Fe in the powder is 4-20% of the total weight of the powder.
9. The steel alloy for welding material as claimed in claim 7, wherein the grain sizes of any two elemental powders are the same or different.
10. The steel alloy for a welding material according to claim 7, characterized in that the elementary powder has a particle size of 50-250 mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911070444.1A CN110788517A (en) | 2019-11-05 | 2019-11-05 | Steel alloy for welding material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911070444.1A CN110788517A (en) | 2019-11-05 | 2019-11-05 | Steel alloy for welding material |
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| Publication Number | Publication Date |
|---|---|
| CN110788517A true CN110788517A (en) | 2020-02-14 |
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