CN117535590A - Wear-resistant alloy steel containing multi-metal phase - Google Patents
Wear-resistant alloy steel containing multi-metal phase Download PDFInfo
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- 229910000851 Alloy steel Inorganic materials 0.000 title claims abstract description 42
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 19
- 239000002184 metal Substances 0.000 title claims abstract description 19
- 229910052796 boron Inorganic materials 0.000 claims abstract description 12
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 6
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 5
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 4
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 5
- 229910052721 tungsten Inorganic materials 0.000 claims description 4
- 229910052720 vanadium Inorganic materials 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 27
- 239000010959 steel Substances 0.000 abstract description 27
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract description 8
- 229910052804 chromium Inorganic materials 0.000 abstract description 6
- 229910052710 silicon Inorganic materials 0.000 abstract description 4
- 229910052799 carbon Inorganic materials 0.000 abstract description 3
- 229910052750 molybdenum Inorganic materials 0.000 abstract description 3
- 238000005496 tempering Methods 0.000 abstract description 3
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 abstract description 2
- 239000010941 cobalt Substances 0.000 abstract description 2
- 229910017052 cobalt Inorganic materials 0.000 abstract description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052802 copper Inorganic materials 0.000 abstract description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052748 manganese Inorganic materials 0.000 abstract description 2
- 239000007769 metal material Substances 0.000 abstract description 2
- 229910052758 niobium Inorganic materials 0.000 abstract description 2
- 230000002265 prevention Effects 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 238000005260 corrosion Methods 0.000 description 7
- 230000007797 corrosion Effects 0.000 description 7
- 229910045601 alloy Inorganic materials 0.000 description 6
- 239000000956 alloy Substances 0.000 description 6
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 5
- 239000011651 chromium Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 238000005498 polishing Methods 0.000 description 5
- 229910000617 Mangalloy Inorganic materials 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 229910001018 Cast iron Inorganic materials 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000010955 niobium Substances 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- 244000137852 Petrea volubilis Species 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 238000007545 Vickers hardness test Methods 0.000 description 1
- 239000006061 abrasive grain Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000007542 hardness measurement Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 208000020442 loss of weight Diseases 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 208000016261 weight loss Diseases 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
Classifications
-
- 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
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- 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
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
-
- 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
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- 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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
-
- 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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel 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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel 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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
-
- 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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel 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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/52—Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt
-
- 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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
-
- 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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/56—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.7% by weight of carbon
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- Chemical & Material Sciences (AREA)
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- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
The invention provides wear-resistant alloy steel containing a multi-element metal phase, and belongs to the technical field of metal materials. Comprising the following steps: 1.20 to 1.80 percent of C, 0.50 to 0.60 percent of Si, 0.20 to 0.35 percent of Mn, 1.55 to 1.85 percent of Cr, 2.00 to 2.30 percent of Ni, 0.50 to 0.70 percent of Mo, 0.010 to 0.020 percent of Al, 0.070 to 0.090 percent of Nb, 0.30 to 0.35 percent of Cu, 0.25 to 0.40 percent of Co, 0.10 to 0.18 percent of Zr and 0.015 to 0.025 percent of B. The invention adopts higher nickel content, is controlled to be 2.00-2.30%, can improve the strength of steel, keeps good plasticity and toughness, and has rust prevention and heat resistance at high temperature. The cobalt content is controlled to be 0.25% -0.40%, the hardenability of the steel can be reduced, and the heat strength and the high-temperature hardness of the alloy steel can be improved. The zirconium content is controlled to be 0.10% -0.18%, and the formed carbide can prevent the hot brittleness of the steel, improve the bluish brittleness phenomenon of the steel and reduce the tempering brittleness of the steel. The invention improves the strength and toughness of alloy steel and has excellent wear resistance.
Description
Technical Field
The invention relates to the technical field of metal materials, in particular to wear-resistant alloy steel containing a multi-element metal phase.
Background
The wear-resistant alloy steel is a special-performance steel for wear working conditions, and is mainly characterized by higher strength, hardness, toughness and wear resistance under wear conditions. The wear-resistant alloy steel is applied to the abrasive wear industrial and mining conditions with a certain impact load, and is a steel material with other elements purposefully added to meet specific performance requirements. Such as alloying elements, added to improve the hardness, toughness and hardenability and various comprehensive performance indexes. Even some harmful elements meet special requirements under specific environmental conditions, and can be called alloy elements, and wear-resistant alloy steel is roughly divided into austenitic manganese steel, medium-chromium steel, low-alloy steel and graphite steel, and is suitable for different industrial and mining conditions respectively.
In the wear-resistant alloy steel, the total amount of alloy elements (Fe, C, harmful elements and hidden elements) is not higher than 5 percent, namely the low alloy steel (5-10 percent is medium alloy steel and 10-15 percent is high manganese steel), the mechanical properties, particularly the hardness and the toughness of the low alloy steel can be adjusted in a large range, and the strength, the impact toughness and the wear resistance can be comprehensively considered and matched according to different using conditions. The wear resistance thereof is enhanced with the increase of hardness as long as breakage is not caused by brittleness. Low alloy wear resistant steels are generally known for high toughness and high hardness. The strength and hardness are higher than those of the wear-resistant manganese steel, and the wear-resistant manganese steel can be replaced under the working condition of not large impact abrasion; the plastic and toughness of the alloy is higher than that of the wear-resistant cast iron, and the service life of the alloy is longer than that of the wear-resistant cast iron under a certain impact load wearing condition. In the prior art, the strength and toughness of alloy steel generally have a certain negative correlation, but for wear-resistant steel, the strength and toughness are required to be combined to a certain extent and balanced so as to ensure excellent wear resistance. In this case, how to improve both the strength and toughness of the alloy steel is a technical problem to be solved in the art.
Disclosure of Invention
The invention aims to solve the technical problems that: how to improve the strength and toughness of alloy steel at the same time so as to obtain more excellent wear resistance.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
the wear-resistant alloy steel containing the multi-metal phase comprises the following components in percentage by mass: c:1.20 to 1.80 percent, si:0.50 to 0.60 percent, mn:0.20 to 0.35 percent, cr:1.55 to 1.85 percent of Ni:2.00% -2.30%, mo:0.50 to 0.70 percent of Al:0.010% -0.020%, nb:0.070 to 0.090 percent, cu:0.30 to 0.35 percent, co:0.25 to 0.40 percent of Zr:0.10% -0.18%, B:0.015 to 0.025 percent.
Preferably, the composition further comprises the following components in percentage by mass: rare earth element: 0.001 to 0.005 percent.
Preferably, the composition further comprises the following components in percentage by mass: mg:0.050% -0.080%.
Preferably, the composition further comprises the following components in percentage by mass: w: 0.005-0.020%.
Preferably, the composition further comprises the following components in percentage by mass: v: 0.005-0.015%.
Preferably, the composition further comprises the following components in percentage by mass: ti:0.030 to 0.040 percent.
Preferably, the balance is Fe.
Preferably, the mass ratio of Cu to Al is 2 to 2.5, and the mass ratio of Nb to Zr is 5.5 to 6.8.
Preferably, the wear-resistant alloy steel comprises the following components in percentage by mass: c:1.50%, si:0.555%, mn:0.27%, cr:1.70%, ni:2.15%, mo:0.60%, al:0.015%, nb:0.080%, cu:0.32%, co:0.33%, zr:0.14%, B:0.020% and the balance being Fe.
Preferably, the wear-resistant alloy steel comprises the following components in percentage by mass: c:1.50%, si:0.555%, mn:0.27%, cr:1.70%, ni:2.15%, mo:0.60%, al:0.015%, nb:0.080%, cu:0.32%, co:0.33%, zr:0.14%, B:0.020%, rare earth element: 0.003%, mg:0.065%, W:0.012%, V:0.010%, ti:0.035% and the balance of Fe.
In the technical scheme, the carbon content is controlled to be 1.20% -1.80%, so that the yield point and the tensile strength are improved, and meanwhile, the cold brittleness and the aging sensitivity of the steel are increased. The silicon content is controlled to be 0.50% -0.60%, the elastic limit, yield point and tensile strength of the steel can be obviously improved, and meanwhile, the silicon is combined with molybdenum, tungsten, chromium and the like, so that the corrosion resistance and oxidation resistance are improved to a certain extent. The manganese content is controlled to be 0.20-0.35%, and compared with the steel with the common steel quantity, the steel has enough toughness, higher strength and hardness, improves the quenching property of the steel and improves the hot processing property of the steel. The chromium content is controlled to be 1.55% -1.85%, the strength, the hardness and the wear resistance can be obviously improved, meanwhile, the plasticity and the toughness of the matrix are maintained, and the oxidation resistance and the corrosion resistance of the steel can be improved by the chromium. The invention adopts higher nickel content, which is controlled to be 2.00-2.30%, can improve the strength of steel, and keeps good plasticity and toughness; nickel has high corrosion resistance to acid and alkali, and has rust resistance and heat resistance at high temperature. The molybdenum content is controlled to be 0.50-0.70%, so that the grains of the steel can be refined, the hardenability and the heat strength performance are improved, and the enough strength and creep resistance are maintained at high temperature; brittleness due to quenching can also be suppressed.
According to the invention, a small amount of aluminum is added, the content is controlled to be 0.010-0.020%, grains can be refined, and the impact toughness is improved; the alloy can be used together with chromium and silicon to obviously improve the high-temperature non-skinning performance and the high-temperature corrosion resistance of steel. The niobium content is controlled to be 0.070-0.090 percent, which can refine grains, reduce overheat sensitivity and tempering brittleness of steel, improve strength, improve resistance to atmospheric corrosion and resistance to hydrogen, nitrogen and ammonia corrosion at high temperature, and is also helpful for improving welding performance. The copper content is controlled to be 0.30-0.35%, the strength and toughness, especially the atmospheric corrosion performance, can be improved, and the welding performance is not affected. The cobalt content is controlled to be 0.25% -0.40%, the hardenability of the steel can be reduced, and the heat strength and the high-temperature hardness of the alloy steel can be improved. The zirconium content is controlled to be 0.10% -0.18%, and the formed carbide can prevent the hot brittleness of the steel, improve the bluish brittleness phenomenon of the steel and reduce the tempering brittleness of the steel. The boron content is controlled to be 0.015% -0.025%, so that the compactness and hot rolling performance of the steel can be improved, and the strength can be improved. The invention improves the strength and toughness of alloy steel and has excellent wear resistance.
Detailed Description
Hereinafter, embodiments of the present invention will be described in detail. In order to avoid unnecessary detail, well-known structures or functions will not be described in detail in the following embodiments. Approximating language, as used in the following examples, may be applied to create a quantitative representation that could permissibly vary without resulting in a change in the basic function. Unless defined otherwise, technical and scientific terms used in the following examples have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
Example 1
The wear-resistant alloy steel containing the multi-metal phase comprises the following components in percentage by mass: c:1.20%, si:0.50%, mn:0.20%, cr:1.55%, ni:2.00%, mo:0.50%, al:0.010%, nb:0.070%, cu:0.30%, co:0.25%, zr:0.10%, B:0.015%, the balance being Fe and unavoidable impurity components.
Example 2
The wear-resistant alloy steel containing the multi-metal phase comprises the following components in percentage by mass: c:1.80%, si:0.60%, mn:0.35%, cr:1.85%, ni:2.30%, mo:0.70%, al:0.020%, nb:0.090%, cu:0.35%, co:0.40%, zr:0.18%, B:0.025%, the balance being Fe and unavoidable impurity components.
Example 3
The wear-resistant alloy steel containing the multi-metal phase comprises the following components in percentage by mass: c:1.50%, si:0.555%, mn:0.27%, cr:1.70%, ni:2.15%, mo:0.60%, al:0.015%, nb:0.080%, cu:0.32%, co:0.33%, zr:0.14%, B:0.020%, the balance being Fe and unavoidable impurity components.
Example 4
The wear-resistant alloy steel containing the multi-metal phase comprises the following components in percentage by mass: c:1.50%, si:0.555%, mn:0.27%, cr:1.70%, ni:2.15%, mo:0.60%, al:0.015%, nb:0.080%, cu:0.32%, co:0.33%, zr:0.14%, B:0.020%, rare earth element: 0.003%, mg:0.065%, W:0.012%, V:0.010%, ti:0.035%, the balance being Fe and unavoidable impurity components. The mass ratio of Cu to Al is 2-2.5, and the mass ratio of Nb to Zr is 5.5-6.8.
The wear resistance of the wear-resistant alloy steel was tested as follows.
Specific method and principle of abrasive particle abrasion experiment: the abrasive wear properties of the test specimens were tested with a dial abrasive wear tester. And (3) cutting out a sample with the size of phi 6 multiplied by 20mm by using a linear cutting mode, and polishing, washing with alcohol and drying the surface of the disc before testing. The rotation speed of the test machine disc is 60r/min. The grinding material is silica sand paper with the abrasive grain size of 53 mu m, and the disc is fully paved during experiments. Under the condition that the loading load (P) is 0.4MPa, clamping the sample by using a clamp, enabling the sample to move from the center to the edge of the disc at a speed of 6mm/s, and then moving from the edge to the center of the disc to perform reciprocating linear motion; the sample was moved from the center of the disk to the edge and from the edge to the center, 1 reciprocation. Each sample was premilled for 3 minutes before testing, with the surface as parallel as possible to the millstone. In the experiment, the sample can do reciprocating linear motion along with the clamp, and the grinding material does circular motion along with the disc in a circulating way, wherein the maximum radius is 120mm, and the minimum radius is 30mm. Each sample was reciprocated 15 times and then the weight loss of the sample before and after abrasion was measured. The loss of weight was measured with an analytical balance, and three replicates were performed for each group, and the average of the three replicates was taken. The test results are shown in table 1 below.
Table 1 results of abrasion resistance test
Experimental objects | Abrasive wear (mg) |
Example 1 | 16.99 |
Example 2 | 17.84 |
Example 3 | 16.73 |
Example 4 | 12.56 |
High chromium cast iron Cr26 | 53.21 |
The hardness of the wear-resistant alloy steel was tested as follows.
The hardness testing method comprises the following steps: dividing the wear-resistant alloy steel into small blocks, performing thermal mosaic by a metallographic mosaic machine, sequentially polishing by sand paper according to 400, 800, 1000, 1500 and 2000 meshes, and polishing until the surface is free of scratches after polishing; after polishing, ultrasonically cleaning the surface with absolute ethyl alcohol to remove surface stains, and then starting to test hardness; hardness test was performed using a Vickers hardness tester, model Wilson VH1102, at a pressure of 100g for 10s. The test results are shown in table 2 below.
TABLE 2 Vickers hardness test results
The wear-resistant alloy steel was tested for fracture toughness, average grain size, tensile strength, and yield strength as follows. The test results are shown in table 3 below:
TABLE 3 fracture toughness, average particle size, tensile strength, yield strength test results
The experimental result shows that the wear-resistant alloy steel has excellent strength and toughness, and the wear resistance is obviously improved, so that the wear-resistant alloy steel has outstanding technical advantages.
The foregoing describes the embodiments of the present invention in detail, but the description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the scope of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A wear resistant alloy steel containing a multi-element metal phase, characterized by comprising the following components in mass fraction: c:1.20 to 1.80 percent, si:0.50 to 0.60 percent, mn:0.20 to 0.35 percent, cr:1.55 to 1.85 percent of Ni:2.00% -2.30%, mo:0.50 to 0.70 percent of Al:0.010% -0.020%, nb:0.070 to 0.090 percent, cu:0.30 to 0.35 percent, co:0.25 to 0.40 percent of Zr:0.10% -0.18%, B:0.015 to 0.025 percent.
2. The wear resistant alloy steel containing a multi-element metal phase according to claim 1, further comprising the following components in mass fraction: rare earth element: 0.001 to 0.005 percent.
3. The wear resistant alloy steel containing a multi-element metal phase according to claim 1, further comprising the following components in mass fraction: mg:0.050% -0.080%.
4. The wear resistant alloy steel containing a multi-element metal phase according to claim 1, further comprising the following components in mass fraction: w: 0.005-0.020%.
5. The wear resistant alloy steel containing a multi-element metal phase according to claim 1, further comprising the following components in mass fraction: v: 0.005-0.015%.
6. The wear resistant alloy steel containing a multi-element metal phase according to claim 1, further comprising the following components in mass fraction: ti:0.030 to 0.040 percent.
7. A wear resistant alloy steel containing a multi-element metal phase according to claim 1, wherein the balance is Fe.
8. The wear-resistant alloy steel containing a multi-element metal phase according to claim 1, wherein the mass ratio of Cu to Al is 2 to 2.5 and the mass ratio of Nb to Zr is 5.5 to 6.8.
9. A wear resistant alloy steel containing a multi-element metal phase according to claim 1, characterized in that it consists of the following components in mass fraction: c:1.50%, si:0.555%, mn:0.27%, cr:1.70%, ni:2.15%, mo:0.60%, al:0.015%, nb:0.080%, cu:0.32%, co:0.33%, zr:0.14%, B:0.020% and the balance being Fe.
10. A wear resistant alloy steel containing a multi-element metal phase according to claim 1, characterized in that it consists of the following components in mass fraction: c:1.50%, si:0.555%, mn:0.27%, cr:1.70%, ni:2.15%, mo:0.60%, al:0.015%, nb:0.080%, cu:0.32%, co:0.33%, zr:0.14%, B:0.020%, rare earth element: 0.003%, mg:0.065%, W:0.012%, V:0.010%, ti:0.035% and the balance of Fe.
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