CN111254364A - Alloy steel with high strength and high wear resistance - Google Patents
Alloy steel with high strength and high wear resistance Download PDFInfo
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- CN111254364A CN111254364A CN201811456280.1A CN201811456280A CN111254364A CN 111254364 A CN111254364 A CN 111254364A CN 201811456280 A CN201811456280 A CN 201811456280A CN 111254364 A CN111254364 A CN 111254364A
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- 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
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- 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
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- 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
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- 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
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
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- 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
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
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- 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
- C22C38/14—Ferrous alloys, e.g. steel alloys containing 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
- C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
The invention provides alloy steel with high strength and high wear resistance, which mainly comprises iron, wherein other elements except iron comprise carbon, manganese, molybdenum, nickel, copper, boron, titanium, magnesium and rare earth cerium, and the content of carbon is 0.35-0.50%. Preferably, the alloy steel comprises the following components in percentage by weight: 0.35 to 0.50 percent of carbon, 0.25 to 0.30 percent of manganese, 0.05 to 0.12 percent of molybdenum, 1 to 5 percent of nickel, 0.05 to 0.12 percent of copper, 0.04 to 0.08 percent of boron, 0.10 to 0.15 percent of titanium, 0.5 to 0.8 percent of magnesium, 0.01 to 0.03 percent of rare earth cerium, and the balance of iron. The alloy steel has high manganese content, and the manganese containing a small amount of impurities is hard and brittle, so that the manganese can not only enhance the hardness of iron, but also can not reduce the ductility and toughness of the iron, and can effectively enhance the strength of the alloy steel.
Description
Technical Field
The invention relates to the technical field of metallurgy, in particular to alloy steel with high strength and high wear resistance.
Background
The alloy steel is added with other alloy elements besides iron and carbon, so the alloy steel is called. On the basis of common carbon steel, a proper amount of one or more alloy elements are added to form the iron-carbon alloy. According to the difference of the added elements and by adopting a proper processing technology, the special properties of high strength, high toughness, wear resistance, corrosion resistance, low temperature resistance, high temperature resistance, no magnetism and the like can be obtained.
Alloy steels are various, and are generally divided into low alloy steel (the content is less than 5%), medium alloy steel (the content is 5% -10%) and high alloy steel (the content is more than 10%) according to the content of alloy elements; the alloy steel is divided into high-quality alloy steel and special alloy steel according to the mass; according to characteristics and purposes, the steel is divided into alloy structural steel, stainless steel, acid-resistant steel, wear-resistant steel, heat-resistant steel, alloy tool steel, rolling bearing steel, alloy spring steel, special performance steel (such as soft magnetic steel, permanent magnetic steel and non-magnetic steel) and the like.
In industrial production, some parts in chemical production equipment are subject to wear during use, which is one of the main causes affecting the life of parts, and the improvement of the strength of alloy steel is a constantly sought-after goal.
Disclosure of Invention
In order to solve the problems, the invention provides alloy steel with high strength and high wear resistance, and aims to solve the problem that the strength and the wear resistance of the traditional alloy steel are not high enough.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides alloy steel with high strength and high wear resistance, which mainly comprises iron, wherein other elements except iron comprise carbon, manganese, molybdenum, nickel, copper, boron, titanium, magnesium and rare earth cerium, and the content of carbon is 0.35-0.50%.
Preferably, the alloy steel comprises the following components in percentage by weight:
0.35 to 0.50 percent of carbon,
0.25 to 0.30 percent of manganese,
0.05 to 0.12 percent of molybdenum,
1 to 5 percent of nickel,
0.05 to 0.12 percent of copper,
0.04 to 0.08 percent of boron,
0.10 to 0.15 percent of titanium,
0.5 to 0.8 percent of magnesium,
0.01 to 0.03 percent of rare earth cerium,
the balance being iron.
Preferably, the alloy steel comprises the following components in percentage by weight:
0.40 percent of carbon,
0.28 percent of manganese,
0.10 percent of molybdenum,
3 percent of nickel,
0.08 percent of copper,
0.06 percent of boron,
0.12 percent of titanium,
0.7 percent of magnesium,
0.03 percent of rare earth cerium,
the balance being iron.
Preferably, the alloy steel comprises the following components in percentage by weight:
0.45 percent of carbon,
0.30 percent of manganese,
0.08 percent of molybdenum,
2 percent of nickel,
0.08 percent of copper,
0.06 percent of boron,
0.14 percent of titanium,
0.8 percent of magnesium,
0.02 percent of rare earth cerium,
the balance being iron.
Preferably, the alloy steel having high strength and high wear resistance according to the present invention further contains niobium.
Preferably, the niobium is contained in an amount of 0.5 to 1%.
Compared with the prior art, the alloy steel has higher manganese content, and the manganese containing a small amount of impurities is hard and brittle, so that the manganese not only can enhance the hardness of iron, but also can not reduce the ductility and toughness of the iron, and can effectively enhance the strength of the alloy steel. In addition, the alloy steel also contains magnesium and rare earth cerium, wherein the magnesium can ensure that the crystal grains of the alloy steel are finer and more uniform, the wear resistance of the alloy steel is improved, and the alloy steel has damping performance and can also play a role in shock absorption. In addition, the rare earth cerium has the function of refining grains, and the service life of the alloy steel can be prolonged.
Detailed Description
In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.
The invention relates to alloy steel with high strength and high wear resistance, which mainly comprises iron, wherein other elements except iron comprise carbon, manganese, molybdenum, nickel, copper, boron, titanium, magnesium and rare earth cerium, and the content of carbon is 0.35-0.50%.
Preferably, the alloy steel comprises the following components in percentage by weight: 0.35 to 0.50 percent of carbon, 0.25 to 0.30 percent of manganese, 0.05 to 0.12 percent of molybdenum, 1 to 5 percent of nickel, 0.05 to 0.12 percent of copper, 0.04 to 0.08 percent of boron, 0.10 to 0.15 percent of titanium, 0.5 to 0.8 percent of magnesium, 0.01 to 0.03 percent of rare earth cerium, and the balance of iron.
The alloy steel has high manganese content, and when the manganese content is high, the manganese can replace iron or form an alloy cementite with iron and carbon. The cementite appears in a pearlitic form, which is beneficial to the formation of pearlite, refines the pearlite, can obviously improve the strength and hardness of the alloy steel, and reduces the plasticity. The manganese is set to be 0.25-0.30% by weight according to the requirement, so that the quantity of residual austenite in the alloy steel can be ensured, and the overheating sensitivity and the dimensional stability of the alloy steel can be stabilized.
However, manganese increases the brittleness of the alloy steel during tempering, i.e. the toughness of alloy steels containing more manganese element decreases when the temperature increases, which requires a moderate amount of molybdenum element. The molybdenum element with the weight percentage of 0.05-0.12 percent can improve the hardenability, the tempering resistance stability and the toughness of the alloy steel during tempering.
Magnesium has good dent resistance, and the alloy steel has larger deformation resistance and stronger wear resistance by adding a proper amount of magnesium into the alloy steel. In addition, the magnesium can enable the crystal grains of the alloy steel to be more fine and uniform, the damping performance of the alloy steel can also play a role in shock absorption, and the comfort of people can be improved in certain use occasions.
The rare earth cerium has the function of refining grains, and the service life of the alloy steel can be prolonged by 0.01-0.03 percent of the rare earth cerium.
In a specific embodiment, the alloy steel comprises the following components in percentage by weight: 0.40% of carbon, 0.28% of manganese, 0.10% of molybdenum, 3% of nickel, 0.08% of copper, 0.06% of boron, 0.12% of titanium, 0.7% of magnesium, 0.03% of rare earth cerium and the balance of iron.
In another specific embodiment, the alloy steel comprises the following components in percentage by weight: 0.45% of carbon, 0.30% of manganese, 0.08% of molybdenum, 2% of nickel, 0.08% of copper, 0.06% of boron, 0.14% of titanium, 0.8% of magnesium, 0.02% of rare earth cerium and the balance of iron.
Preferably, the alloy steel having high strength and high wear resistance according to the present invention further contains niobium in its composition. Further, the content of niobium is 0.5 to 1%. Niobium is used as a microalloying element, and is added into the alloy steel to change the microstructure of the steel without changing the structure of iron but combined with carbon and nitrogen in the alloy steel. The strengthening effect of niobium on the alloy steel is mainly fine grain strengthening and dispersion strengthening, niobium can generate stable carbide and carbonitride with carbon and nitrogen in the steel, and the carbide can be dispersed to form the steel with fine grain. Further, niobium can adjust the toughness of the alloy steel in a wide range. Therefore, the strength of the alloy steel can be improved by adding a proper amount of niobium into the alloy steel, the toughness, the high-temperature oxidation resistance and the corrosion resistance of the alloy steel can be improved, the brittle transition temperature of the alloy steel is reduced, and better welding performance and forming performance are obtained.
Compared with the prior art, the alloy steel has higher manganese content, and the manganese containing a small amount of impurities is hard and brittle, so that the manganese not only can enhance the hardness of iron, but also can not reduce the ductility and toughness of the iron, and can effectively enhance the strength of the alloy steel. In addition, the alloy steel also contains magnesium and rare earth cerium, wherein the magnesium can ensure that the crystal grains of the alloy steel are finer and more uniform, the wear resistance of the alloy steel is improved, and the alloy steel has damping performance and can also play a role in shock absorption. In addition, the rare earth cerium has the function of refining grains, and the service life of the alloy steel can be prolonged.
The present invention has been described in relation to the above embodiments, which are only exemplary of the implementation of the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. Rather, it is intended that all such modifications and variations be included within the spirit and scope of this invention.
Claims (6)
1. The alloy steel with high strength and high wear resistance is characterized by mainly comprising iron, wherein other elements except iron comprise carbon, manganese, molybdenum, nickel, copper, boron, titanium, magnesium and rare earth cerium, and the content of the carbon is 0.35-0.50%.
2. The steel alloy with high strength and high wear resistance according to claim 1, wherein the steel alloy comprises the following components in percentage by weight:
0.35 to 0.50 percent of carbon,
0.25 to 0.30 percent of manganese,
0.05 to 0.12 percent of molybdenum,
1 to 5 percent of nickel,
0.05 to 0.12 percent of copper,
0.04 to 0.08 percent of boron,
0.10 to 0.15 percent of titanium,
0.5 to 0.8 percent of magnesium,
0.01 to 0.03 percent of rare earth cerium,
the balance being iron.
3. The steel alloy with high strength and high wear resistance according to claim 1, wherein the steel alloy comprises the following components by weight percent:
0.40 percent of carbon,
0.28 percent of manganese,
0.10 percent of molybdenum,
3 percent of nickel,
0.08 percent of copper,
0.06 percent of boron,
0.12 percent of titanium,
0.7 percent of magnesium,
0.03 percent of rare earth cerium,
the balance being iron.
4. The steel alloy with high strength and high wear resistance according to claim 1, wherein the steel alloy comprises the following components by weight percent:
0.45 percent of carbon,
0.30 percent of manganese,
0.08 percent of molybdenum,
2 percent of nickel,
0.08 percent of copper,
0.06 percent of boron,
0.14 percent of titanium,
0.8 percent of magnesium,
0.02 percent of rare earth cerium,
the balance being iron.
5. The steel alloy with high strength and high wear resistance according to claim 1, wherein the composition further comprises niobium.
6. The steel alloy with high strength and high wear resistance according to claim 5, wherein the content of niobium is 0.5-1%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811456280.1A CN111254364A (en) | 2018-11-30 | 2018-11-30 | Alloy steel with high strength and high wear resistance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811456280.1A CN111254364A (en) | 2018-11-30 | 2018-11-30 | Alloy steel with high strength and high wear resistance |
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| Publication Number | Publication Date |
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| CN111254364A true CN111254364A (en) | 2020-06-09 |
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| CN201811456280.1A Pending CN111254364A (en) | 2018-11-30 | 2018-11-30 | Alloy steel with high strength and high wear resistance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112662942A (en) * | 2020-11-19 | 2021-04-16 | 南京钢铁股份有限公司 | Damping steel and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1203124A1 (en) * | 1984-06-21 | 1986-01-07 | Предприятие П/Я Р-6286 | Steel |
| EP2662462A1 (en) * | 2012-05-07 | 2013-11-13 | Valls Besitz GmbH | Low temperature hardenable steels with excellent machinability |
| WO2016184926A1 (en) * | 2015-05-18 | 2016-11-24 | Rovalma, S.A. | Method for the construction of bearings |
| CN108220816A (en) * | 2017-12-29 | 2018-06-29 | 陈章华 | A kind of low chromium shock resistance high-temperature antiwear alloy steel and preparation method thereof |
-
2018
- 2018-11-30 CN CN201811456280.1A patent/CN111254364A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1203124A1 (en) * | 1984-06-21 | 1986-01-07 | Предприятие П/Я Р-6286 | Steel |
| EP2662462A1 (en) * | 2012-05-07 | 2013-11-13 | Valls Besitz GmbH | Low temperature hardenable steels with excellent machinability |
| WO2016184926A1 (en) * | 2015-05-18 | 2016-11-24 | Rovalma, S.A. | Method for the construction of bearings |
| CN108220816A (en) * | 2017-12-29 | 2018-06-29 | 陈章华 | A kind of low chromium shock resistance high-temperature antiwear alloy steel and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112662942A (en) * | 2020-11-19 | 2021-04-16 | 南京钢铁股份有限公司 | Damping steel and preparation method thereof |
| CN112662942B (en) * | 2020-11-19 | 2022-04-19 | 南京钢铁股份有限公司 | Damping steel and preparation method thereof |
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