CN104388814A - Graphene modified steel - Google Patents
Graphene modified steel Download PDFInfo
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- CN104388814A CN104388814A CN201410461727.XA CN201410461727A CN104388814A CN 104388814 A CN104388814 A CN 104388814A CN 201410461727 A CN201410461727 A CN 201410461727A CN 104388814 A CN104388814 A CN 104388814A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C38/00—Ferrous alloys, e.g. steel alloys
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Abstract
The invention relates to a graphene modified steel, which has a carbon content of 0.6-2.3%. Specifically, at least part of the carbon element exists in the form of graphene. The high carbon steel not only has high strength, but also has good toughness.
Description
Technical field
The present invention relates to steel, be specifically related to a kind of Graphene modified steel.
Background technology
Steel is the iron-carbon of carbon content between 0.0218%-2.11%.Outside the principal element deironing of steel, carbon, also have silicon, manganese, sulphur, phosphorus etc.It is generally used in need intensity, hardness and wear resistance metal parts on, as cutting tool, wirerope, piano wire, spring, cutter, for the manufacture of the part bearing large load in heavy-duty machinery, as frame of rolling mill, water pressure engine base etc.; On rail vehicle for the manufacture of the stressed part withstood shocks again greatly as bolster, side frame, wheel and hitch etc., after being processed to form, part needs usually again through process and tempering.Carbon Content Of Steel is higher, and the hardness after its heat treated, intensity and wear resistance are also higher.
The hardness of steel, intensity depend primarily on the carbon amounts of solid solution in steel, and improve with the increase of solid solution carbon amounts.When solid solution carbon amounts is more than 0.6%, after quenching, hardness no longer increases, and just superfluous carbide increasing number, the wear resistance of steel slightly increases, and plasticity, toughness and elasticity decrease.We are in order to ensure its toughness and plasticity, and carbon content is generally no more than 1.7%, and after carbon content is more than 1.7%, along with the continuation of carbon content increases, intensity improves, and fragility significantly reduces.For this reason, often according to working conditions and the steel intensity of steel, toughness coupling being selected to different model.Such as, manufacture stressed little spring or spring formula part, 65 steel of lower carbon amounts can be selected.General steel can use electric furnace, open hearth, oxygen coverter to produce.Require electrosmelting can be adopted to add vacuum consumable or esr during the higher or very special quality of quality.When smelting is melted, strictly control chemical composition, particularly the content of sulphur and phosphorus.
Summary of the invention
In order to overcome the above problems, the invention provides a kind of Graphene modified steel, increase rear fragility also strain large problem mutually to solve carbon content.
According to this shaped steel of Graphene of the present invention, its carbon content is between 0.6-2.3%, and wherein, at least part of carbon exists with the form of Graphene.
Owing to introducing Graphene, according to steel of the present invention even carbon content up to 1.7% time also can keep desirable toughness, and can also continue to keep the intensity of steel.
Embodiment
In the present invention, carbon at least part of in steel provides with Graphene form, such as the 10-90% of institute's carbon containing, preferred 30-90%.More preferably, the ratio of the steel institute graphene-containing of different carbon content is also distinguished to some extent.Usually, the amount of the Graphene introduced is not less than 0.1% of steel product quality.When in steel not graphene-containing carbon source time, the yield strength of this steel between 300-550MPa ,-40 DEG C of low-temperature impact toughness Akv60J-90J.When Graphene in steel accounts for more than 10% of institute's carbon content, the yield strength of this steel between 400-600MPa ,-40 DEG C of low-temperature impact toughness Akv80J-130J.
Graphene used in the present invention can be buied from market, and typical example is that applicant oneself produces and the Graphene sold.No. 201210367072.0th, Chinese patent application, the production method describing Graphene for No. 201410308860.1, the 201410398232.7th, its content disclosed is incorporated to herein with reform.Be applicable to Graphene thickness of the present invention no more than 2nm, be suitable between 0.335-2nm.Be more preferably the Graphene of 1-3 layer, its thickness is between 0.335-1nm.The number of plies of Graphene is lower, and it provides the effect of toughness better.
This production process is after by the non-graphite olefinic carbon source removal part in steel raw materials, introduces Graphene as carburelant in anoxybiotic situation.This carburelant is known by prior art.
Embodiment 1
According to filling a prescription, production carbon content is the high carbon steel of 0.6%, and wherein 10% is Graphene, and all the other compositions are Si content 0.2%, Mn content 0.5%, P content 0.01%, and surplus is Fe.
Embodiment 2
According to filling a prescription, production carbon content is the high carbon steel of 0.6%, and wherein 15% is Graphene, and all the other compositions are Si content 0.2%, Mn content 0.5%, P content 0.01%, and surplus is Fe.
Embodiment 3
According to filling a prescription, production carbon content is the high carbon steel of 0.6%, and wherein 30% is Graphene, and all the other compositions are Si content 0.2%, Mn content 0.5%, P content 0.01%, and surplus is Fe.
Comparative example 1
According to filling a prescription, production carbon content is the high carbon steel of 0.6%, and it is all common carbon, and introduce with the form of carburelant Graphite Powder 99, all the other compositions are Si content 0.2%, Mn content 0.5%, P content 0.01%, and surplus is Fe.
Embodiment 4
According to filling a prescription, production carbon content is the high carbon steel of 1.2%, and wherein 20% is Graphene, and all the other compositions are Si content 0.2%, Mn content 0.5%, P content 0.01%, and surplus is Fe.
Embodiment 5
According to filling a prescription, production carbon content is the high carbon steel of 1.5%, and wherein 30% is Graphene, and all the other compositions are Si content 0.2%, Mn content 0.5%, P content 0.01%, and surplus is Fe.
Embodiment 6
According to filling a prescription, production carbon content is the high carbon steel of 1.7%, and wherein 40% is Graphene, and all the other compositions are Si content 0.2%, Mn content 0.5%, P content 0.01%, and surplus is Fe.
Comparative example 2
According to filling a prescription, production carbon content is the high carbon steel of 1.7%, and it is all common carbon, and introduce with the form of carburelant Graphite Powder 99, all the other compositions are Si content 0.2%, Mn content 0.5%, P content 0.01%, and surplus is Fe.
Embodiment 7
According to filling a prescription, production carbon content is the high carbon steel of 2%, and wherein 30% is Graphene, and all the other compositions are Si content 0.2%, Mn content 0.5%, P content 0.01%, and surplus is Fe.
Embodiment 8
According to filling a prescription, production carbon content is the high carbon steel of 2.1%, and wherein 50% is Graphene, and all the other compositions are Si content 0.2%, Mn content 0.5%, P content 0.01%, and surplus is Fe.
Embodiment 9
According to filling a prescription, production carbon content is the high carbon steel of 2.3%, and wherein 80% is Graphene, and all the other compositions are Si content 0.2%, Mn content 0.5%, P content 0.01%, and surplus is Fe.
Comparative example 3
According to filling a prescription, production carbon content is the high carbon steel of 2.3%, and it is all common carbon, and introduce with the form of carburelant Graphite Powder 99, all the other compositions are Si content 0.2%, Mn content 0.5%, P content 0.01%, and surplus is Fe.
Detect yield strength and-40 DEG C of low-temperature impact toughness of the various embodiments described above and comparative example, list in table 1.
The performance perameter of each embodiment of table 1 and comparative sample
| Example | Yield strength/MPa | -40 DEG C of low-temperature impact toughness/J |
| Embodiment 1 | 400 | 120 |
| Embodiment 2 | 430 | 125 |
| Embodiment 3 | 432 | 126 |
| Comparative example 1 | 350 | 100 |
| Embodiment 4 | 480 | 110 |
| Embodiment 5 | 520 | 120 |
| Embodiment 6 | 523 | 122 |
| Comparative example 2 | 450 | 80 |
| Embodiment 7 | 550 | 110 |
| Embodiment 8 | 570 | 125 |
| Embodiment 9 | 580 | 125 |
| Comparative example 3 | 500 | 60 |
Can be found by embodiment and comparative example, when there is no Graphene in carbon source, yield strength along with increasing of carbon content in rising trend, but-40 DEG C of low-temperature impact toughness decline; Time between carbon content 0.6%-1%, along with the increase of Graphene add-on, yield strength increases gradually, toughness also strengthens, when Graphene add-on accounts for carbon source massfraction 15%-20%, be optimum value, both saved Graphene consumption and increased effect again and also do not have clear improvement; Time between carbon content 1%-1.7%, along with the increase of Graphene add-on, yield strength increases gradually, toughness also strengthens, when Graphene add-on accounts for carbon source massfraction 30%-40%, be optimum value, both saved Graphene consumption and increased effect again and also do not have clear improvement; When carbon content is more than 1.7%, along with the increase of Graphene add-on, yield strength increases gradually, and toughness also strengthens, and when Graphene add-on accounts for carbon source massfraction 50%, is optimum value, has both saved Graphene consumption and increased effect more also not have clear improvement.
Claims (7)
1. a Graphene modified steel, its carbon content is between 0.6-2.3%, and wherein, at least part of carbon exists with the form of Graphene.
2. Graphene modified steel according to claim 1, wherein, the ratio of Graphene in institute's carbon containing is 30-90%.
3. Graphene modified steel according to claim 1, wherein, when carbon content in steel is between 0.6-1.0%, the ratio of Graphene in institute's carbon containing is 15-20%.
4. high carbon steel according to claim 1, wherein, when carbon content in steel is between 1.0-1.7%, the ratio of Graphene in institute's carbon containing is 30-40%.
5. high carbon steel according to claim 1, wherein, when carbon content in steel is between 1.7-2.3%, the ratio of Graphene in institute's carbon containing is 50%.
6. the high carbon steel described in any one of claim 1 to 5, wherein, the thickness of described Graphene is 0.335-2.0 nanometer.
7. the production method of high carbon steel described in any one of claim 1 to 5, is characterized in that, fusing steelmaking feed, after decarburization, in anoxybiotic situation, adds Graphene.
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| CN201410461727.XA CN104388814B (en) | 2014-09-12 | 2014-09-12 | A kind of Graphene modified steel |
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| CN201410461727.XA CN104388814B (en) | 2014-09-12 | 2014-09-12 | A kind of Graphene modified steel |
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| CN104388814B CN104388814B (en) | 2016-07-06 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105908053A (en) * | 2016-05-27 | 2016-08-31 | 天津平高智能电气有限公司 | Graphene-stainless steel composite material and preparation method and application thereof |
| CN107043896A (en) * | 2017-03-04 | 2017-08-15 | 蒋培丽 | Anticorrosion steel and its forging technology |
| CN107058847A (en) * | 2017-03-23 | 2017-08-18 | 柳州弘蓝科技有限公司 | A kind of anti-ballistic materials |
| CN107604260A (en) * | 2017-09-19 | 2018-01-19 | 安徽恒利增材制造科技有限公司 | A kind of ferrous alloy and preparation method thereof |
| CN107686950A (en) * | 2017-08-30 | 2018-02-13 | 长沙理工大学 | A kind of graphene ferroalloy |
| CN108034907A (en) * | 2017-11-24 | 2018-05-15 | 万鑫精工（湖南）有限公司 | A kind of gear reducer input shaft |
| CN108893734A (en) * | 2018-07-02 | 2018-11-27 | 中北大学 | A kind of surface of low-carbon steel duplex heat treatment and preparation method thereof |
| CN115747622A (en) * | 2022-11-11 | 2023-03-07 | 唐山市丰润区兴泰耐磨材料有限公司 | Wear-resistant steel ball and preparation method thereof |
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| CN1745187A (en) * | 2003-01-27 | 2006-03-08 | 新日本制铁株式会社 | High-carbon steel wire rod with high strength and high toughness |
| CN102965590A (en) * | 2012-11-20 | 2013-03-13 | 无锡常安通用金属制品有限公司 | Modified hard alloy and preparation thereof |
| CN103567434A (en) * | 2013-10-10 | 2014-02-12 | 铜陵国方水暖科技有限责任公司 | Powder metallurgy flange and preparation method thereof |
| CN103626166A (en) * | 2012-08-28 | 2014-03-12 | 海洋王照明科技股份有限公司 | Graphene preparation method |
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2014
- 2014-09-12 CN CN201410461727.XA patent/CN104388814B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1745187A (en) * | 2003-01-27 | 2006-03-08 | 新日本制铁株式会社 | High-carbon steel wire rod with high strength and high toughness |
| CN103626166A (en) * | 2012-08-28 | 2014-03-12 | 海洋王照明科技股份有限公司 | Graphene preparation method |
| CN102965590A (en) * | 2012-11-20 | 2013-03-13 | 无锡常安通用金属制品有限公司 | Modified hard alloy and preparation thereof |
| CN103567434A (en) * | 2013-10-10 | 2014-02-12 | 铜陵国方水暖科技有限责任公司 | Powder metallurgy flange and preparation method thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105908053A (en) * | 2016-05-27 | 2016-08-31 | 天津平高智能电气有限公司 | Graphene-stainless steel composite material and preparation method and application thereof |
| CN107043896A (en) * | 2017-03-04 | 2017-08-15 | 蒋培丽 | Anticorrosion steel and its forging technology |
| CN107058847A (en) * | 2017-03-23 | 2017-08-18 | 柳州弘蓝科技有限公司 | A kind of anti-ballistic materials |
| CN107686950A (en) * | 2017-08-30 | 2018-02-13 | 长沙理工大学 | A kind of graphene ferroalloy |
| CN107604260A (en) * | 2017-09-19 | 2018-01-19 | 安徽恒利增材制造科技有限公司 | A kind of ferrous alloy and preparation method thereof |
| CN108034907A (en) * | 2017-11-24 | 2018-05-15 | 万鑫精工（湖南）有限公司 | A kind of gear reducer input shaft |
| CN108893734A (en) * | 2018-07-02 | 2018-11-27 | 中北大学 | A kind of surface of low-carbon steel duplex heat treatment and preparation method thereof |
| CN115747622A (en) * | 2022-11-11 | 2023-03-07 | 唐山市丰润区兴泰耐磨材料有限公司 | Wear-resistant steel ball and preparation method thereof |
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| CN104388814B (en) | 2016-07-06 |
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