CN112935239B - High hardness welding alloy and composition thereof - Google Patents

High hardness welding alloy and composition thereof Download PDF

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Publication number
CN112935239B
CN112935239B CN202110045701.7A CN202110045701A CN112935239B CN 112935239 B CN112935239 B CN 112935239B CN 202110045701 A CN202110045701 A CN 202110045701A CN 112935239 B CN112935239 B CN 112935239B
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equal
welding
composition
alloy
hardness
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CN112935239A (en
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王圣棻
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Pleiades Shanghai New Materials Co ltd
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Pleiades Shanghai New Materials Co ltd
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    • B22F1/0003—
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y70/00—Materials specially adapted for additive manufacturing
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Powder Metallurgy (AREA)

Abstract

The invention provides a composition of a high-hardness welding alloy, which comprises the following components in parts by weight: c: less than or equal to 0.5 percent, but not equal to 0; si:0.5-6%; mn:0.01-0.11%; p:0.01-0.07%; s:0.01-0.06%; cr:6-13%; mo: less than or equal to 1.2 percent, but not equal to 0; ti:0.0-0.6%; v:1.0-1.8%; the balance of Fe and unavoidable impurities. The invention also provides a high-hardness welding alloy prepared from the composition of the high-hardness welding alloy. The high-hardness welding alloy and the composition of the high-hardness welding alloy provided by the invention have good hardness and good welding performance, and can be used for welding of forging iron base materials, rolled steel materials and casting iron base materials, and particularly can be used as 3D printing metal consumable materials.

Description

High hardness welding alloy and composition thereof
Technical Field
The invention relates to a welding metal material, in particular to a high-hardness welding alloy and a composition thereof.
Background
The past half century, the integration of laser technology, computer technology, new material technology has enabled a new era of additive manufacturing (3D printing) technology. The additive manufacturing is a direct near-net forming technology without a mould, and based on computer-aided design/manufacturing, materials are solidified and clad layer by layer, or stacked layer by layer and block assembled and welded to form an integral structure, so that a personalized, customized and miniaturized production mode can be realized.
In terms of the physical concept of processing and manufacturing, welding is a model of additive manufacturing, whether welding rod repairing surfacing welding or numerical control automatic welding technology, and additive manufacturing based on high-energy beam heat sources, and belongs to the field of generalized additive manufacturing. The technological base of the additive manufacturing technology of metal components is the technological progress of high energy beam as special welding heat source, and the high energy beam has very flexible, precisely controllable energy, and is deeply integrated with computer aided design/manufacture information technology.
Additive manufacturing essentially belongs to the field of material processing, and common additive manufacturing materials (consumable materials) comprise engineering plastics, rubber materials, photosensitive resins, metals, ceramics and the like, wherein the 3D printing technology of the metal materials is particularly rapid in development, and metal powder used for 3D printing generally requires high purity, good sphericity, narrow particle size distribution and low oxygen content. Currently, metal powder materials applied to 3D printing mainly include titanium alloy, cobalt-chromium alloy, stainless steel, aluminum alloy materials, and the like.
At present, china's additive manufacturing has some influencing enterprises and brands in the fields of equipment, software and the like, but materials mainly depend on import, and 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.
The first aspect of the present invention is to provide a composition of a high hardness welding alloy, in particular a composition of an additive manufacturing (3D printing) metal consumable or alloy consumable.
In a preferred embodiment of the present invention, the composition of the high hardness welding alloy comprises, in weight proportions, based on the total weight of the composition:
c: less than or equal to 0.5 percent, but not equal to 0;
Si：0.5-6％；
Mn：0.01-0.11％；
P：0.01-0.07％；
S：0.01-0.06％；
Cr：6-13％；
mo: less than or equal to 1.2 percent, but not equal to 0;
Ti：0.0-0.6％；
V：1.0-1.8％；
the balance of Fe and unavoidable impurities.
The composition of the high-hardness welding alloy according to the present invention further preferably comprises, in weight proportions, based on the total weight of the composition of the high-hardness welding alloy:
c: less than or equal to 0.5 percent, but not equal to 0;
Si：1.0-5％；
Mn：0.01-0.10％；
P：0.01-0.06％；
S：0.01-0.05％；
Cr：8-12％；
mo: less than or equal to 1.2 percent, but not equal to 0;
Ti：0.1-0.5％；
V：1.1-1.7％；
the balance of Fe and unavoidable impurities.
The composition of the high-hardness welding alloy according to the present invention further preferably comprises, in weight proportions, based on the total weight of the composition of the high-hardness welding alloy:
c: less than or equal to 0.5 percent, but not equal to 0;
Si：1.0-4％；
Mn：0.01-0.09％；
P：0.01-0.05％；
S：0.01-0.04％；
Cr：8-10％；
mo: less than or equal to 1.2 percent, but not equal to 0;
Ti：0.1-0.4％；
V：1.1-1.6％；
the balance of Fe and unavoidable impurities.
The composition of the high-hardness welding alloy according to the present invention further preferably comprises, in weight proportions, based on the total weight of the composition of the high-hardness welding alloy:
c: less than or equal to 0.5 percent, but not equal to 0;
Si：1.0-3.5％；
Mn：0.01-0.085％；
P：0.01-0.045％；
S：0.01-0.035％；
Cr：8.5-10％；
mo: less than or equal to 1.2 percent, but not equal to 0;
Ti：0.2-0.35％；
V：1.15-1.55％；
the balance of Fe and unavoidable impurities.
In a second aspect the present invention provides a high hardness welding alloy, preferably prepared from a composition of the high hardness welding alloy described above.
In the high-hardness welding alloy, the components in weight proportion based on the total weight of the high-hardness welding alloy comprise:
c: less than or equal to 0.5 percent, but not equal to 0;
Si：0.5-6％；
Mn：0.01-0.11％；
P：0.01-0.07％；
S：0.01-0.06％；
Cr：6-13％；
mo: less than or equal to 1.2 percent, but not equal to 0;
Ti：0.0-0.6％；
V：1.0-1.8％；
the balance of Fe and unavoidable impurities.
In the high-hardness welding alloy of the present invention, the components, based on the total weight of the high-hardness welding alloy, more preferably include:
c: less than or equal to 0.5 percent, but not equal to 0;
Si：1.0-5％；
Mn：0.01-0.10％；
P：0.01-0.06％；
S：0.01-0.05％；
Cr：8-12％；
mo: less than or equal to 1.2 percent, but not equal to 0;
Ti：0.1-0.5％；
V：1.1-1.7％；
the balance of Fe and unavoidable impurities.
In the high-hardness welding alloy of the present invention, the components, based on the total weight of the high-hardness welding alloy, more preferably include:
c: less than or equal to 0.5 percent, but not equal to 0;
Si：1.0-4％；
Mn：0.01-0.09％；
P：0.01-0.05％；
S：0.01-0.04％；
Cr：8-10％；
mo: less than or equal to 1.2 percent, but not equal to 0;
Ti：0.1-0.4％；
V：1.1-1.6％；
the balance of Fe and unavoidable impurities.
In the high-hardness welding alloy of the present invention, the components, based on the total weight of the high-hardness welding alloy, more preferably include:
c: less than or equal to 0.5 percent, but not equal to 0;
Si：1.0-3.5％；
Mn：0.01-0.085％；
P：0.01-0.045％；
S：0.01-0.035％；
Cr：8.5-10％；
mo: less than or equal to 1.2 percent, but not equal to 0;
Ti：0.2-0.35％；
V：1.15-1.55％；
the balance of Fe and unavoidable impurities.
The high hardness welding alloy of the present invention, and the composition of the high hardness welding alloy, preferably comprise a powder. Preferably, the powder is entirely elemental powder, or at least comprises elemental powder.
In a preferred embodiment, the elemental powder preferably has a particle size of 50-250 mesh, more preferably 60-200 mesh.
More preferably, the elemental powders described herein may be present in a fraction of the powder having a particle size outside the above stated mesh range, but not in excess of 10% by weight.
In a preferred embodiment, the particle sizes of any two elemental powders may be the same or different.
In a preferred embodiment, the high hardness welding alloy has a Rockwell hardness of 57-59HRC.
The high-hardness welding alloy and the composition of the high-hardness welding alloy provided by the invention have higher hardness and good welding performance, can be used for welding of forging iron base materials, rolled steel materials and casting iron base materials, and can be particularly used as 3D printing (additive manufacturing) metal consumable materials.
Drawings
Fig. 1 is a schematic structural view of an additive manufacturing apparatus for a metal composition for welding.
Legend description:
1. a laser beam; 2. a metal composition for welding; 3. a molten pool; 4. a workpiece.
Detailed Description
The high hardness welding alloy provided by the present invention, and the composition of the high hardness welding alloy, will be described by way of example with reference to specific examples.
Example 1
In this example, as shown in fig. 1, the metal composition 2 for welding was in the form of powder. The metal composition 2 for powder welding is uniformly converged into a focused laser beam 1, and the powder flow is coupled out coaxially with the laser beam 1. The laser beam 1 heats the workpiece 4 into a molten pool 3, and the powdered metal composition 2 for welding is injected into the molten pool 3, and the metal composition 2 for welding is deposited in a cladding manner to form a molded article.
Wherein the welding metal composition 2 includes C, si, mn, P, S, cr, mo, ti, V, it should be understood that unavoidable impurities may also be included in the welding metal composition 2. Specifically, the proportions of the components of the metal composition for welding 2 to the total weight of the metal composition for welding 2 are as follows: c:0.5%;
Si：5％；
Mn：0.1％；
P：0.06％；
S：0.05％；
Cr：12％；
Mo：1.0％；
Ti：0.5％；
V：1.7％；
the balance being Fe.
Example 2
In this example, as shown in fig. 1, the metal composition 2 for welding was in the form of powder. The metal composition 2 for powder welding is uniformly converged into a focused laser beam 1, and the powder flow is coupled out coaxially with the laser beam 1. The laser beam 1 heats the workpiece 4 into a molten pool 3, and the powdered metal composition 2 for welding is injected into the molten pool 3, and the metal composition 2 for welding is deposited in a cladding manner to form a molded article.
Wherein the welding metal composition 2 includes C, si, mn, P, S, cr, mo, ti, V, it should be understood that unavoidable impurities may also be included in the welding metal composition 2. Specifically, the proportions of the components of the metal composition for welding 2 to the total weight of the metal composition for welding 2 are as follows: c:0.4%;
Si：4％；
Mn：0.08％；
P：0.04％；
S：0.03％；
Cr：10％；
Mo：1.0％；
Ti：0.4％；
V：1.5％；
the balance being Fe.
Example 3
In this example, as shown in fig. 1, the metal composition 2 for welding was in the form of powder. The metal composition 2 for powder welding is uniformly converged into a focused laser beam 1, and the powder flow is coupled out coaxially with the laser beam 1. The laser beam 1 heats the workpiece 4 into a molten pool 3, and the powdered metal composition 2 for welding is injected into the molten pool 3, and the metal composition 2 for welding is deposited in a cladding manner to form a molded article.
Wherein the welding metal composition 2 includes C, si, mn, P, S, cr, mo, ti, V, it should be understood that unavoidable impurities may also be included in the welding metal composition 2. Specifically, the proportions of the components of the metal composition for welding 2 to the total weight of the metal composition for welding 2 are as follows: c:0.3%;
Si：3％；
Mn：0.05％；
P：0.03％；
S：0.02％；
Cr：9％；
Mo：0.8％；
Ti：0.3％；
V：1.4％；
the balance being Fe.
The high-hardness welding alloy and the composition of the high-hardness welding alloy disclosed by the embodiment of the invention have higher hardness and good welding performance, and can be used for welding of forged iron substrates, rolled steel and cast iron substrates. The welding method uses a 3D printing (additive manufacturing) method, each layer being 0.5mm thick. The single layer hardness (HRC, rockwell) after welding is between 57 and 59, and the 2-3 layer hardness (HRC, rockwell) is between 57 and 59 without tempering and preheating.
The above description of the specific embodiments of the present invention has been given by way of example only, and the present invention is not limited to the above described specific embodiments. Any equivalent modifications and substitutions for the present invention will occur to those skilled in the art, and are also within the scope of the present invention. Accordingly, equivalent changes and modifications are intended to be included within the scope of the present invention without departing from the spirit and scope thereof.

Claims (7)

1. The 3D printing alloy is characterized by comprising the following components in parts by weight based on the total weight of the 3D printing alloy:
c: less than or equal to 0.5 percent, but not equal to 0;
Si：0.5-6％；
Mn：0.01-0.11％；
P：0.01-0.07％；
S：0.01-0.06％；
Cr：6-13％；
mo: less than or equal to 1.2 percent, but not equal to 0;
Ti：0.0-0.6％；
V：1.0-1.8％；
the balance of Fe and unavoidable impurities;
the 3D printing alloy has the advantages that under the condition of no tempering or preheating, the single-layer hardness HRC after welding is 57-59, and the 2-3-layer hardness HRC is 57-59.
2. The 3D printing alloy according to claim 1, wherein the composition, based on the total weight of the 3D printing alloy, in weight proportions, is:
c: less than or equal to 0.5 percent, but not equal to 0;
Si：1.0-5％；
Mn：0.01-0.10％；
P：0.01-0.06％；
S：0.01-0.05％；
Cr：8-12％；
mo: less than or equal to 1.2 percent, but not equal to 0;
Ti：0.1-0.5％；
V：1.1-1.7％；
the balance of Fe and unavoidable impurities.
3. The 3D printing alloy according to claim 2, wherein the composition, based on the total weight of the 3D printing alloy, in weight proportions, is:
c: less than or equal to 0.5 percent, but not equal to 0;
Si：1.0-4％；
Mn：0.01-0.09％；
P：0.01-0.05％；
S：0.01-0.04％；
Cr：8-10％；
mo: less than or equal to 1.2 percent, but not equal to 0;
Ti：0.1-0.4％；
V：1.1-1.6％；
the balance of Fe and unavoidable impurities.
4. A 3D printing alloy according to any of claims 1-3, wherein the 3D printing alloy comprises a powder, which is wholly elemental powder, or at least comprises elemental powder.
5. The 3D printing alloy of claim 4, wherein the particle sizes of any two elemental powders are the same or different.
6. The 3D printing alloy of claim 5, wherein the elemental powder has a particle size of 50-250 mesh.
7. Use of the 3D printed alloy of claim 1, wherein the welding is performed by 3D printing, each layer being 0.5mm thick, without tempering and preheating conditions.
CN202110045701.7A 2021-01-14 2021-01-14 High hardness welding alloy and composition thereof Active CN112935239B (en)

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CN114438403A (en) * 2021-12-26 2022-05-06 僖昴晰(上海)新材料有限公司 Special steel composition and application thereof

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CN107675075A (en) * 2017-09-05 2018-02-09 王业双 A kind of high-performance high temperature resistant ferritic stainless steel and preparation method thereof
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CN110757027A (en) * 2019-11-05 2020-02-07 上海欣冈贸易有限公司 High-hardness chromium-molybdenum alloy welding material
CN110799663A (en) * 2017-06-21 2020-02-14 霍加纳斯股份有限公司 Iron-based alloy suitable for providing a hard and corrosion-resistant coating on a substrate, article having a hard and corrosion-resistant coating, and method for manufacturing the same
CN110788518A (en) * 2019-11-05 2020-02-14 上海欣冈贸易有限公司 Welding metal material

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US20130266820A1 (en) * 2012-04-05 2013-10-10 c/o Chevron Corporation Metal alloy compositions and applications thereof

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011005403A1 (en) * 2009-07-08 2011-01-13 Sandvik Intellectual Property Ab Wear resistant weld overlay on bearing surfaces in tricone mining rockbits
WO2016055545A1 (en) * 2014-10-09 2016-04-14 Centre de Recherches Métallurgiques asbl - Centrum voor Research in de Metallurgie vzw Work roll manufactured by laser cladding and method therefor
CN109312439A (en) * 2016-06-16 2019-02-05 尤迪霍尔姆斯有限责任公司 Steel suitable for plastic tool
CN110799663A (en) * 2017-06-21 2020-02-14 霍加纳斯股份有限公司 Iron-based alloy suitable for providing a hard and corrosion-resistant coating on a substrate, article having a hard and corrosion-resistant coating, and method for manufacturing the same
CN107675075A (en) * 2017-09-05 2018-02-09 王业双 A kind of high-performance high temperature resistant ferritic stainless steel and preparation method thereof
CN110714163A (en) * 2019-11-05 2020-01-21 上海欣冈贸易有限公司 High-hardness steel alloy welding material
CN110757027A (en) * 2019-11-05 2020-02-07 上海欣冈贸易有限公司 High-hardness chromium-molybdenum alloy welding material
CN110788518A (en) * 2019-11-05 2020-02-14 上海欣冈贸易有限公司 Welding metal material

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