CN101886219A - Particle-reinforced antiwear steel composite material and preparation method thereof - Google Patents
Particle-reinforced antiwear steel composite material and preparation method thereof Download PDFInfo
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- CN101886219A CN101886219A CN 201010220557 CN201010220557A CN101886219A CN 101886219 A CN101886219 A CN 101886219A CN 201010220557 CN201010220557 CN 201010220557 CN 201010220557 A CN201010220557 A CN 201010220557A CN 101886219 A CN101886219 A CN 101886219A
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Abstract
The invention provides a particle-reinforced antiwear steel composite material, which comprises the following components in percentage by weight: 1 to 1.2 percent of C, 15 to 19 percent of Mn, 2 to 4 percent of V, 0.2 to 0.4 percent of Co, 0.02 to 0.05 percent of Si, 0.03 to 0.09 percent of Pr, 0.05 to 0.2 percent of Nd, 0.05 to 0.1 percent of Gd and the balance of Fe. The antiwear steel composite material is provided with fine and dispersed antiwear particles, so the composite material has the advantages of excellent common mechanical properties, improved tensile strength and impact toughness and high wear resistance. The invention also provides a method for preparing the particle-reinforced antiwear steel composite material. The method is simple and convenient. The particle-reinforced antiwear steel composite material prepared by the method also has the advantages of high properties, high integral strength, hardness and wear resistance, long service life, low production cost and convenient industrialized production.
Description
Technical field
The present invention relates to a kind of particle-reinforced antiwear steel composite material and preparation method thereof, belong to technical field of alloy material.
Background technology
In the metal current material field, the wear resisting property of steel has been subjected to increasing attention.Also disclose many wear resisting steel materials in the existing technology, Chinese patent CN200710135682.7 relates to a kind of RE alloyed antiwear high manganese steel, belongs to field of metallurgy.Characteristics are: adopt the composition prescription of high-carbon, Gao Meng, Cr, rare earth, its per-cent of forming weight is: C:0.90-1.30, Si:0.30-0.80, Mn:11.00-14.00, Cr:2.00-2.50, RE:0.30-0.35, S≤0.03, P≤0.06, all the other are iron.Chinese patent CN200810058345.7 discloses a kind of method of high mangaenese steel being carried out the rotten processing of yttrium-base heavy rare earth.This invention relates to a kind ofly takes the rotten technology of improving high mangaenese steel tissue and raising mechanical property of handling of rare earth to high mangaenese steel, belongs to metallic substance modifying technology field.At first the melting steel scrap, add ferromanganese, treat that furnace charge all after the fusing, adds fluorite and unslaked lime and removes the gred, insert the fine aluminium deoxygenation again, coming out of the stove in the time of 1410 ℃～1460 ℃ then charges in the ladle that contains heavy rare earths, and the cast of calm back is carried out the tough processing of water to foundry goods at last.No hard phase in the wear resisting steel material matrix of above-mentioned two kinds of technology, therefore initial wear resisting property is restricted.
China CN200910218979.9 discloses a kind of preparation method of high manganese steel based SiC particle surface composite material, this method is at first carried out surface treatment to the SiC particle, prepare disappearance mould apperance then, and cover corresponding to the wearing surface of part in disappearance mould apperance and to add SiC particle cream piece, apperance after handling is carried out moulding, applied coating according to routine disappearance mould casting process, take vacuum full mold casting technology during cast, select for use high mangaenese steel as the casting matrix material, and pouring temperature is controlled at 1350 ℃, cast back air cooling 20min.Casting mold obtains the surperficial preferably high manganese steel Sic particle of sintering composite bed after cooling, off-type, cleaning.Take to add SiC granules preparation matrix material in the present technique, must carry out pre-treatment, complex procedures also is difficult to control the quality of matrix material.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art part, a kind of particle-reinforced antiwear steel composite material and preparation method thereof is provided.
Particle-reinforced antiwear steel composite material of the present invention, comprise following ingredients according to weight percent: C 1%～1.2%, Mn 15%～19%, V 2%～4%, and Co 0.2%～0.4%, Si0.02%-0.05%, Pr 0.03%-0.09%, Nd 0.05%～0.2%, and Gd 0.05%～0.1%, and surplus is Fe;
Preferably, particle-reinforced antiwear steel composite material of the present invention comprises following ingredients according to weight percent: C 1.1%, and Mn 17%, and V 3%, and Co 0.3%, and Si 0.03%, and Pr 0.06%, and Nd 0.01%, and Gd 0.08%, and surplus is Fe.
The selection of the content of each composition of alloy of the present invention and composition thereof is based on the following reasons:
Mn: content is 15%～19%, is used to strengthen sosoloid, guarantees mechanical property, and Mn content is lower than 15%, can not guarantee mechanical property, and Mn content is higher than 19%, influences greying;
C: content is 1%～1.2%, and C and V, Co formation hard complicated carbide rise wear-resisting and secondary destruction is joined in opposing, can solve the serious problem of steel running-in wear, improve work-ing life greatly, and the raising cost performance, C content is lower than 1%, does not reach effect; C content is higher than 1.2%, and C-Co-V hard complex compound increases, and can reduce the plasticity and the tensile strength of alloy;
V: content is 2%～4%, and V and C, Co formation hard complicated carbide rise wear-resisting and secondary destruction is joined in opposing, can solve the serious problem of steel running-in wear, improve work-ing life greatly, and the raising cost performance, V content is lower than 2%, does not reach effect; V content is higher than 4%, and C-Co-V hard complex compound increases, and can reduce the plasticity and the tensile strength of alloy;
Co: content is 0.2%～0.4%, and Co becomes the hard complicated carbide with C, V-arrangement, rises wear-resisting and secondary destruction is joined in opposing, can solve the serious problem of steel running-in wear, improve work-ing life greatly, improve cost performance, Co content is lower than 0.2%, does not reach effect; V content is higher than 0.4%, and C-Co-V hard complex compound increases, and can reduce the plasticity and the tensile strength of alloy;
Si: content is 0.02%-0.05%, is used for solution strengthening, and Si is lower than 0.02%, can not guarantee solution strengthening; Si is higher than 0.05%, improves the fragility of alloy.
Pr: content is 0.03%-0.09%, and Pr and Nd, Gd acting in conjunction can increase the forming core core and suppress the austenite crystal grain length, and refinement complex compound particle, Pr have the effect of rounding complex compound particulate.Pr is lower than 0.03%, does not reach effect; Pr is higher than 0.09%, and Pr is a rare earth element, too much uses, and not only improves material cost, also can form some excessive compounds, reduces the mechanical property of material;
Nd: content is 0.05%-0.2%, and Nd and Pr, Gd acting in conjunction can increase the forming core core and suppress austenite crystal grain length, refinement complex compound particle.Nd is lower than 0.05%, does not reach effect; Nd is higher than 0.2%, and Nd is a rare earth element, too much uses, and not only improves material cost, also can form some excessive compounds, reduces the mechanical property of material;
Gd: content is 0.05%-0.1%, and Gd and Pr, Nd acting in conjunction can increase the forming core core and suppress austenite crystal grain length, refinement complex compound particle.Gd is lower than 0.05%, does not have effect; Gd is higher than 0.1%, and Gd is a rare earth element, too much uses, and not only improves material cost, also can form some excessive compounds, reduces the mechanical property of material;
Have tiny on this antiwear steel composite material and dispersive plays the particle of wear-resisting effect, so the not only common mechanics superior performance of this matrix material, tensile strength and impelling strength are improved, and have good wear-resisting effect simultaneously.
The preparation method of particle-reinforced antiwear steel composite material of the present invention comprises the following steps:
1) prepares the raw material of each component, C carburelant wherein, iron 20 steel plates, Mn is with pure manganese sheet, Si silico briquette, Co cobalt plate, Pr, Nd and V respectively with the praseodymium iron that contains Pr55%, contain the neodymium iron of Nd75% and contain the vanadium iron of V25%, the Gd gadolinium iron that contains Gd60%, the particle size of Pr, Nd and Gd raw material is 3-7mm;
2) raw material of C, Mn, Si, V, Co and Fe is added furnace melting, temperature of fusion is 1590-1620 ℃, and the raw material of Pr, Nd and Gd is placed on the bottom of ladle, and the molten steel that fusing is good is poured the bottom into and is equipped with in the bag of raw material of Pr, Nd and Gd, and Argon stirs; Molten steel temperature just casting forming when reaching 1590 ℃ forms cast pellets enhancing antiwear steel composite material in bag, again with material after the tough processing of water behind the 1050-1080 ℃ of austenitizing, promptly be prepared from.
The preparation method of particle-reinforced antiwear steel composite material of the present invention is easy, and the alloy material performance of production is good, adopts the antiwear steel composite material of this method preparation, can improve bulk strength, hardness and wear resistance, prolongs life.And production cost is low, is convenient to very much suitability for industrialized production.
Description of drawings
The metallographic structure of the particle-reinforced antiwear steel composite material that Fig. 1 makes for the embodiment of the invention 1.
Embodiment
Embodiment 1
The particle-reinforced antiwear steel composite material of present embodiment comprises following ingredients according to weight percent: C 1%, and Mn 15%, and V 2%, and Co 0.2%, and Si 0.02%, and Pr 0.03%, and Nd 0.05%, and Gd 0.05%, and surplus is Fe; Have tiny on this particle-reinforced antiwear steel composite material and dispersive plays the particle of wear-resisting effect.As shown in Figure 1, can see and on steel matrix, be distributed with tiny V, Co complicated carbide.
The preparation of the particle-reinforced antiwear steel composite material of present embodiment comprises the following steps:
1) prepares the raw material of each component, C carburelant wherein, iron 20 steel plates, Mn is with pure manganese sheet, Si silico briquette, Co cobalt plate, Pr, Nd and V respectively with the praseodymium iron that contains Pr55%, contain the neodymium iron of Nd75% and contain the vanadium iron of V25%, the Gd gadolinium iron that contains Gd60%, the particle size of Pr, Nd and Gd raw material is 3-7mm
2) raw material of C, Mn, Si, V, Co and Fe is added furnace melting, temperature of fusion is 1590-1620 ℃, and the raw material of Pr, Nd and Gd is placed on the bottom of ladle, and the molten steel that fusing is good is poured the bottom into and is equipped with in the bag of raw material of Pr, Nd and Gd, and Argon stirs; Molten steel temperature just casting forming when reaching 1590 ℃ forms cast pellets enhancing antiwear steel composite material in bag, again with material after the tough processing of water behind the 1050-1080 ℃ of austenitizing, promptly be prepared from.
Embodiment 2
The particle-reinforced antiwear steel composite material of present embodiment comprises following ingredients according to weight percent: C 1.2%, and Mn 19%, and V 4%, and Co 0.4%, and Si 0.05%, and Pr 0.09%, Nd0.2%, and Gd 0.1%, and surplus is Fe; Have tiny on this particle-reinforced antiwear steel composite material and dispersive plays the particle of wear-resisting effect.The preparation method is with reference to embodiment 1.
Embodiment 3
The particle-reinforced antiwear steel composite material of present embodiment comprises following ingredients according to weight percent: C 1.1%, and Mn 17%, and V 3%, and Co 0.3%, and Si 0.03%, and Pr 0.06%, Nd0.01%, and Gd 0.08%, and surplus is Fe.This particle-reinforced antiwear steel composite material has tiny and dispersive plays the particle of wear-resisting effect.The preparation method is with reference to embodiment 1.
Reference examples 1
The particle-reinforced antiwear steel composite material of this reference examples comprises following ingredients according to weight percent: C 0.9%, and Mn 14%, and V 1%, and Co 0.1%, and Si 0.01%, and Pr 0.02%, Nd0.04%, and Gd 0.04%, and surplus is Fe; The preparation method is with reference to embodiment 1.
Reference examples 2
The particle-reinforced antiwear steel composite material of this reference examples comprises following ingredients according to weight percent: C 1.3%, and Mn 20%, and V 5%, and Co 0.5%, and Si 0.06%, and Pr 0.1%, and Nd 0.22%, and Gd 0.12%, and surplus is Fe.The preparation method is with reference to embodiment 1.
Embodiment 4
Compare the tensile strength and the impelling strength of the particle-reinforced antiwear steel composite material among background technology, reference examples and the embodiment, its result is as shown in table 1:
Table 1 alloy property synopsis:
| Alloy | Tensile strength/MPa | Impelling strength/KJ/m2 |
| ??CN200810058345.7 | ??128.00-200.64 | ??416.89-1088.17 |
| Embodiment 1 | ??300 | ??1100 |
| Embodiment 2 | ??320 | ??1150 |
| Embodiment 3 | ??200 | ??1180 |
| Reference examples 1 | ??180 | ??890 |
| Reference examples 2 | ??200 | ??680 |
As can be seen from the above table, the hardness of the particle-reinforced antiwear steel composite material of embodiment 1-3 and impelling strength all are better than reference examples and background technology, and particle-reinforced antiwear steel composite material of the present invention has better alloy property.
Claims (3)
1. particle-reinforced antiwear steel composite material, it is characterized in that, comprise following ingredients according to weight percent: C 1%～1.2%, and Mn 15%～19%, and V 2%～4%, Co0.2%～0.4%, Si 0.02%-0.05%, Pr 0.03%-0.09%, Nd 0.05%～0.2%, Gd 0.05%～0.1%, and surplus is Fe.
2. particle-reinforced antiwear steel composite material according to claim 1 is characterized in that, comprises following ingredients according to weight percent: C 1.1%, and Mn 17%, V 3%, and Co 0.3%, and Si 0.03%, and Pr 0.06%, Nd 0.01%, and Gd 0.08%, and surplus is Fe.
3. a method for preparing particle-reinforced antiwear steel composite material is characterized in that, comprises the following steps:
1) prepares the raw material of each component, C carburelant wherein, iron 20 steel plates, Mn is with pure manganese sheet, Si silico briquette, Co cobalt plate, Pr, Nd and V respectively with the praseodymium iron that contains Pr55%, contain the neodymium iron of Nd75% and contain the vanadium iron of V25%, the Gd gadolinium iron that contains Gd60%, the particle size of Pr, Nd and Gd raw material is 3-7mm;
2) raw material of C, Mn, Si, V, Co and Fe is added furnace melting, temperature of fusion is 1590-1620 ℃, and the raw material of Pr, Nd and Gd is placed on the bottom of ladle, and the molten steel that fusing is good is poured the bottom into and is equipped with in the bag of raw material of Pr, Nd and Gd, and Argon stirs; Molten steel temperature just casting forming when reaching 1590 ℃ forms cast pellets enhancing antiwear steel composite material in bag, again with material after the tough processing of water behind the 1050-1080 ℃ of austenitizing, promptly be prepared from.
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| CN2010102205578A CN101886219B (en) | 2010-07-07 | 2010-07-07 | Particle-reinforced antiwear steel composite material and preparation method thereof |
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| CN2010102205578A CN101886219B (en) | 2010-07-07 | 2010-07-07 | Particle-reinforced antiwear steel composite material and preparation method thereof |
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| CN101886219A true CN101886219A (en) | 2010-11-17 |
| CN101886219B CN101886219B (en) | 2012-07-25 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02270937A (en) * | 1985-10-18 | 1990-11-06 | Ube Ind Ltd | High manganese steel having high rolling contact fatigue properties and its manufacture |
| CN1274764A (en) * | 1999-05-20 | 2000-11-29 | 重庆钢铁(集团)有限责任公司 | Cobalt-less very hard high-speed tool steel |
| CN1924059A (en) * | 2006-09-05 | 2007-03-07 | 杜雨默 | Modified high manganese steel |
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2010
- 2010-07-07 CN CN2010102205578A patent/CN101886219B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02270937A (en) * | 1985-10-18 | 1990-11-06 | Ube Ind Ltd | High manganese steel having high rolling contact fatigue properties and its manufacture |
| CN1274764A (en) * | 1999-05-20 | 2000-11-29 | 重庆钢铁(集团)有限责任公司 | Cobalt-less very hard high-speed tool steel |
| CN1924059A (en) * | 2006-09-05 | 2007-03-07 | 杜雨默 | Modified high manganese steel |
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Effective date of registration: 20151209 Address after: 225700 weft six road, Xinghua Economic Development Zone, Jiangsu, Taizhou Patentee after: JIANGSU RUIDE MACHINERY CO., LTD. Address before: Pukou District of Nanjing City, Jiangsu Province, 210044 disc City Street No. 114 Patentee before: Nanjing University of Information Science and Technology |
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Effective date of registration: 20180417 Address after: 225700 Xinghua City Economic Development Zone, Taizhou, Jiangsu, north of three road south of Chengnan Road. Patentee after: Jiangsu double hair Machinery Co., Ltd. Address before: 225700 weft six road, Xinghua Economic Development Zone, Jiangsu, Taizhou Patentee before: JIANGSU RUIDE MACHINERY CO., LTD. |
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