CN102181791A - In-situ TiC dispersion-strengthened austenitic heat-resistant steel and preparation method thereof - Google Patents
In-situ TiC dispersion-strengthened austenitic heat-resistant steel and preparation method thereof Download PDFInfo
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- CN102181791A CN102181791A CN 201110075639 CN201110075639A CN102181791A CN 102181791 A CN102181791 A CN 102181791A CN 201110075639 CN201110075639 CN 201110075639 CN 201110075639 A CN201110075639 A CN 201110075639A CN 102181791 A CN102181791 A CN 102181791A
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- 239000010959 steel Substances 0.000 title claims abstract description 66
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 65
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 238000011065 in-situ storage Methods 0.000 title claims abstract 4
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 30
- 239000000956 alloy Substances 0.000 claims abstract description 30
- 239000002245 particle Substances 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 10
- 229910052799 carbon Inorganic materials 0.000 claims description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 21
- 239000010936 titanium Substances 0.000 claims description 15
- 229910052719 titanium Inorganic materials 0.000 claims description 14
- 239000011159 matrix material Substances 0.000 claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 229910052742 iron Inorganic materials 0.000 claims description 9
- 229910052759 nickel Inorganic materials 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- 229910004261 CaF 2 Inorganic materials 0.000 claims description 6
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 6
- 229910052750 molybdenum Inorganic materials 0.000 claims description 6
- 230000006698 induction Effects 0.000 claims description 5
- 239000000155 melt Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 229910052758 niobium Inorganic materials 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 5
- 229910052804 chromium Inorganic materials 0.000 claims description 4
- 229910052720 vanadium Inorganic materials 0.000 claims description 4
- 239000004576 sand Substances 0.000 claims description 2
- 239000006185 dispersion Substances 0.000 claims 5
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims 2
- CYKMNKXPYXUVPR-UHFFFAOYSA-N [C].[Ti] Chemical compound [C].[Ti] CYKMNKXPYXUVPR-UHFFFAOYSA-N 0.000 claims 2
- 239000000843 powder Substances 0.000 claims 2
- 238000003723 Smelting Methods 0.000 claims 1
- 238000005266 casting Methods 0.000 abstract description 10
- 230000004927 fusion Effects 0.000 abstract description 5
- 238000005272 metallurgy Methods 0.000 abstract description 4
- 229910001566 austenite Inorganic materials 0.000 description 8
- 239000000203 mixture Substances 0.000 description 7
- 230000003078 antioxidant effect Effects 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- 239000002893 slag Substances 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- 235000006708 antioxidants Nutrition 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 229910000601 superalloy Inorganic materials 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention relates to a novel in-situ synthetic TiC dispersion-strengthened austenitic heat-resistant steel material and a preparation method thereof. The TiC-containing heat-resistant steel is prepared from the following alloy components in percentage by mass: 18.0-25.0% of Cr, 8.0-30.0% of Ni, 0.05-3.0% of C, 1.0-12.0% of Ti and the balance of Fe. The heat-resistant steel can also comprise less than 3.0% of Mo, less than 1.0% of Al, less than 1.0% of Nb and less than 1.0% of V. The new process combining in-situ fusion casting and electroslag remelting is used for preparing the TiC-containing austenitic heat-resistant steel. Compared with the existing electroslag remelting, the TiC particles in the heat-resistant steel provided by the invention are distributed in a more uniform way and have smaller size. The TiC-containing austenitic heat-resistant steel subjected to electroslag remelting has high strength, excellent heat resistance and excellent wear resistance, and can be used for parts serving at high temperature on industrial products and equipment in metallurgy, machinery, automobiles, petrochemical industry and the like.
Description
Technical field
The present invention relates to synthetic TiC dispersion-strengthened austenite heat-resistance steel of a kind of novel original position and preparation method thereof.
Background technology
Prior art: in industries such as metallurgy, space flight, oil and chemical industry, many equipment of at high temperature working and component all need good resistance toheat, as steam boiler, the steam turbine of thermal power plant, and the jet engine of aircraft industry etc.The material that these at high temperature are on active service need bear various load, as stretch, crooked, reverse, fatigue and impact etc., this just needs the plasticity that they have certain high temperature intensity and adapt to it.In addition, they also contact with high-temperature vapour, air or combustion gas, and this just needs them to have sufficiently high chemical stability.
Austenite heat-resistance has excellent toughness and plasticity, resistance to elevated temperatures and machinability, is widely used in actual industrial.But compare with other high temperature steel, austenitic heat-resistance steel not only intensity is low, wears no resistance and can not improve its intensity by thermal treatment, thereby limited it in industrial application.The preparation technology of TiC dispersion-strengthened steel commonly used adopts the original position fusion casting usually at present.The original position fusion casting by means of traditional casting technique, by add the prefabricated section that contains Ti and C component in melt, generates TiC particle wild phase by reaction in according to thermodynamic principles.Original position synthetic TiC enhanced granule have Thermodynamically stable, size tiny, be evenly distributed and clean with basal body interface and combine characteristics such as good.The original position fusion casting prepares the dispersed particle-strengthened steel of TiC and has that preparation technology is simple relatively, low cost of manufacture, is easy to realize characteristics such as suitability for industrialized production and practical application, thereby has development potentiality and be used widely.But (TiC is 4.93gcm because the density difference of TiC density and steel fusant is big
-3, steel is 7.8gcm
-3), this can cause TiC particulate come-up and reunite, cause the skewness of TiC particle in matrix.In addition, the increase of TiC granule content can make the increase of melt viscosity and reduce the flowability of melt, finally causes being prone in the ingot casting metallurgical problems such as loose, pore, and these casting flaws have restricted the development and the application of TiC dispersion-strengthened steel to a certain extent.Esr is a kind of secondary refining technology, the integrated metallurgical castingprocesses that the collection steel secondary refining combines with directional freeze.Because the removal of high temperature sludge liquid is mingled with the good crystallization condition of effect and water mold, the prepared steel ingot of esr has good purity, and as-cast structure is careful evenly, premium propertiess such as non-metallic inclusion small and dispersed.Therefore, esr is widely used on steel grades such as superior alloy steel, die steel, rapid steel, high temperature steel and superalloy.
Summary of the invention
The purpose of this invention is to provide that a kind of original position synthesis particle is tiny, TiC dispersion-strengthened austenite heat-resistance steel and preparation method thereof is evenly distributed.
Technical solution of the present invention is: the dispersed particle-strengthened austenitic heat-resistance steel of a kind of TiC, composition quality percentage ratio is: Cr:18.0～25.0%, Ni:8.0～30.0%, C:0.05～3.0%, Ti:1.0～12.0%, Fe surplus.Austenitic heat-resistance steel of the present invention may further include, Mo, Al, Nb and V, and the mass percent of each component is Cr:18.0～25.0%, Ni:8.0～30.0%, C:0.05～3.0%, Ti:1.0～12.0%, Mo:＜3.0%, Al:＜1.0%, Nb:＜1.0%, V:＜1.0%, the Fe surplus.
A kind of method for preparing the dispersed particle-strengthened austenitic heat-resistance steel of above-mentioned TiC, preparation process be, the prefabricated section of preparation titaniferous and carbon, and this prefabricated section is formed by the iron powder between 100～200 orders, titanium valve and carbon dust mixed compaction; Add Cr, Ni, alloy furnace charges such as C, Fe at medium-frequency induction furnace, after treating that above-mentioned furnace charge melts fully, be heated to 1550-1700 ℃, required prefabricated section is added in the stove, after treating that prefabricated section reaction, fusing are finished, leave standstill insulation 5min, the pouring metal melt in the stove is gone into to obtain to be used for the consumable electrode that esr is handled in the ready-made in advance sand mo(u)ld, carry out esr then and handle in electroslag furnace, electroslag remelting process is: adopt (25%～30%) Al
2O
3+ (55%～65%) CaF
2+ (20%～5%) TiO
2Slag system is set packing ratio=0.4～0.6 setting voltage 20-30 volt, sets electric current 5000-6500 ampere; The ESR ingot that finally obtains is processed into section bar with the thermal deformation method, and the temperature of processing is 950-1150 ℃.
The novel process that this invention adopts original position fusion casting and esr to combine has prepared the austenite heat-resistance steel that a kind of performance is good, cost is low, intensity is high, resistance toheat is good.Mechanics material property, high-temperature oxidation resistance and the creep property of this TiC of containing austenitic heat-resistance steel all are better than matrix high temperature steel, and this TiC of containing high temperature steel can be used for the component that the needs on Industrial products such as metallurgy, machinery, automobile and petrochemical complex and the equipment at high temperature are on active service.
Beneficial effect: the present invention has following performance characteristics: 1. the material alloys composition is accurate, and ingot quality is good, good compactness, purity height, do not have casting flaws such as loose, the follow-up hot-work rate height of becoming a useful person; 2. original position TiC even particle distribution, particle is tiny, and is strong with basal body binding force; 3. the adjustability of performance promptly can change matrix according to service requirements, forms the material of different performance (intensity, hardness, plasticity and resistance toheat); 5. mechanical strength height, wear-resistant, anti-oxidant and creep resistance, over-all properties are better than matrix high temperature steel.The present invention can be used for the component that the needs on Industrial products such as metallurgy, machinery, automobile and petrochemical complex and the equipment at high temperature are on active service.
Description of drawings
The prepared TiC of Fig. 1 the present invention strengthens the steel metallographic structure.
Fig. 2 is TiC size distribution and pattern in the TiC dispersion-strengthened austenitic heat-resistance steel before the electroslag of the present invention.
Fig. 3 strengthens TiC size distribution and shape appearance figure in the steel for the prepared TiC of the present invention.
Fig. 4 strengthens steel and matrix high temperature steel antioxidant property comparison diagram for the prepared TiC of the present invention.
Fig. 5 strengthens steel and matrix high temperature steel creep-resistant property comparison diagram for the prepared TiC of the present invention.
Embodiment
Table has been listed the mechanical property of some materials for the performance characteristics of material that this invention is described in each following table, wear-resistant, anti-oxidant and creep-resistant property:
Listed the composition of two kinds of alloys in the table 1, first alloy is a kind of typical austenite heat-resistance alloy, and second alloy then is the TiC dispersion-strengthened austenitic heat-resistance steel for preparing by the present invention, and its content is all within the composition range of this invention regulation.
The chemical ingredients (wt%) of two kinds of alloys of table 1
Listed the mechanical property of these two kinds of alloys in the table 2, as seen from the table, in the austenite heat-resistance alloy, added the TiC particle after, can make the intensity of alloy obtain by a relatively large margin raising.
The ambient temperature mechanical properties of two kinds of alloys of table 2
Listed the mechanical behavior under high temperature of these two kinds of alloys in the table 3, as seen from the table, in the austenite heat-resistance alloy, added the TiC particle after, can make the hot strength of alloy obtain by a relatively large margin raising, expanded the upper limit of its use temperature.
The mechanical behavior under high temperature of two kinds of alloys of table 3
Listed the abrasion loss of these measured on the MM2000 wear testing machine two kinds of alloys in the table 4.Test conditions is: 1. friction pair adopts the GCr15 steel, 2. oil lubrication, and 3. linear velocity 0.94m/s, 4. test period is 20 minutes, 5. load 150N.By the table as seen, in the austenite heat-resistance alloy, added the TiC particle after, the abrasion resistance properties of alloy is significantly improved.
The wear volume (mm3) of two kinds of alloys of table 4 behind wearing and tearing 20min under the 150N load
Fig. 3 is the high temperature oxidation weightening finish curve of 800 ℃ of following two kinds of alloys, and as seen from the figure, the rate of oxidation that does not contain TiC particulate austenitic heat-resistance steel is 0.93mgcm
-2Down, the rate of oxidation that contains the high temperature steel of TiC then drops to 0.4mgcm
-2, illustrate that adding the TiC particle can make the antioxidant property of alloy obtain by a relatively large margin raising.Fig. 4 is the creep curve of the following two kinds of alloys of 650 ℃/100MPa, and as seen from the figure, the creep speed that does not contain TiC particulate austenitic heat-resistance steel is 6.9 * 10
-9S
-1, the creep speed that contains the high temperature steel of TiC then drops to 1.2 * 10
-9S
-1, illustrate that having added the creep-resistant property that can make alloy behind the TiC particle in austenitic heat-resistance steel obtains by a relatively large margin raising.
Embodiment 1: a kind of original position is synthesized TiC dispersion-strengthened austenitic heat-resistance steel, it is characterized in that composition quality percentage ratio is: 1.08%C+18%Cr+9%Ni+4%Ti, surplus is Fe.The prefabricated section of preparation titaniferous and carbon: with granularity be iron powder, titanium valve and carbon dust between 200 orders by the mixed of claim 1, and be compacted into piece; After medium-frequency induction furnace adds the matrix alloy furnace charge, treats that above-mentioned furnace charge melts fully, be heated to 1580 ℃, the gained prefabricated section is added in the stove, prefabricated section is fused in the furnace charge; Pouring metal melt in the stove is gone in the ready-made in advance model; Steel ingot carries out esr, and electroslag remelting process is: adopt 30%Al
2O
3+ 60%CaF
2+ 10%TiO
2Slag system, packing ratio=0.5; 20 volts of setting voltages are set 6000 amperes in electric current, use the steel ingot that one step process makes and are processed into section bar with the thermal deformation method, and the temperature of processing is 950-1150 ℃.
Embodiment 2: a kind of original position is synthesized TiC dispersion-strengthened austenitic heat-resistance steel, it is characterized in that composition quality percentage ratio is: 1.8%C+18%Cr+14%Ni+2.5%Mo+7%Ti, surplus is Fe.The prefabricated section of preparation titaniferous and carbon: with granularity be iron powder, titanium valve and carbon dust between 200 orders by the mixed of claim 1, and be compacted into piece; Add the matrix alloy furnace charge at medium-frequency induction furnace, be heated to 1600 ℃, treat that above-mentioned furnace charge melts fully after, the gained prefabricated section is added in the stove, prefabricated section is fused in the furnace charge; Pouring metal melt in the stove is gone in the ready-made in advance model; Steel ingot carries out esr, and electroslag remelting process is: adopt 30%Al
2O
3+ 65%CaF
2+ 5%TiO
2Slag system, packing ratio=0.4～0.6,25 volts of setting voltages are set 6000 amperes in electric current; Use the steel ingot that one step process makes and be processed into section bar with the thermal deformation method, the temperature of processing is 950-1150 ℃.
Embodiment 3: a kind of original position is synthesized TiC dispersion-strengthened austenitic heat-resistance steel, it is characterized in that composition quality percentage ratio is: 1.3%C+25%Cr+20%Ni+2.0%Mo+1.0%Nb+6%Ti, surplus is Fe.The prefabricated section of preparation titaniferous and carbon: with granularity be iron powder, titanium valve and carbon dust between 200 orders by the mixed of claim 1, and be compacted into piece; Add the matrix alloy furnace charge at medium-frequency induction furnace, be heated to 1600 ℃, treat that above-mentioned furnace charge melts fully after, the gained prefabricated section is added in the stove, prefabricated section is fused in the furnace charge; Pouring metal melt in the stove is gone in the ready-made in advance model; Steel ingot carries out esr, and electroslag remelting process is: adopt 30%Al
2O
3+ 65%CaF
2+ 5%TiO
2Slag system, packing ratio=0.4,30 volts of setting voltages are set 6500 amperes in electric current; Use the steel ingot that one step process makes and be processed into section bar with the thermal deformation method, the temperature of processing is 950-1150 ℃.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105463328A (en) * | 2015-12-10 | 2016-04-06 | 安徽相邦复合材料有限公司 | In-situ mixed particle reinforcement steel-based composite material and preparing method thereof |
| CN110952028A (en) * | 2019-12-19 | 2020-04-03 | 广东省材料与加工研究所 | Cr-Ni series austenite heat-resistant steel with enhanced phase precipitated in interior and preparation method thereof |
| CN111304555A (en) * | 2020-03-31 | 2020-06-19 | 广东省材料与加工研究所 | Reinforced Cr-Mn-Ni-C-N austenitic heat-resistant steel by in-situ endogenous precipitation of ceramic particles and its preparation method and application |
| CN113249631A (en) * | 2021-03-25 | 2021-08-13 | 江苏省沙钢钢铁研究院有限公司 | Die casting heating furnace slide block and manufacturing method thereof |
| CN113584382A (en) * | 2021-07-06 | 2021-11-02 | 广东省科学院新材料研究所 | Iron-based ceramic composite material and preparation method and application thereof |
| CN113930656A (en) * | 2021-09-16 | 2022-01-14 | 华中科技大学 | A kind of N-ODS steel for fusion reactor and preparation method thereof |
| CN115838903A (en) * | 2022-12-09 | 2023-03-24 | 中国核动力研究设计院 | Nano mixture dispersed high-strength heat-resistant ferrite steel and application thereof |
| CN118957396A (en) * | 2024-07-26 | 2024-11-15 | 钢研钢纳(济南)金属科技有限公司 | A method for preparing high expansion and high strength austenitic steel |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101020988A (en) * | 2007-03-09 | 2007-08-22 | 东南大学 | Antiwear steel and its making process |
| CN101787494A (en) * | 2009-10-16 | 2010-07-28 | 东南大学 | Dispersed particle-strengthened medium manganese steel and preparation method thereof |
-
2011
- 2011-03-28 CN CN 201110075639 patent/CN102181791A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101020988A (en) * | 2007-03-09 | 2007-08-22 | 东南大学 | Antiwear steel and its making process |
| CN101787494A (en) * | 2009-10-16 | 2010-07-28 | 东南大学 | Dispersed particle-strengthened medium manganese steel and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 《钢铁》 20090731 吴钱林 等 TiC强化304不锈钢的显微组织和性能 第81-84页 1 第44卷, 第7期 * |
| 《首钢科技》 19950228 肖红 电渣重熔1Cr18Ni9Ti专用TiO2渣系的试制 第50页 3 , 第1期 * |
Cited By (11)
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| CN105463328A (en) * | 2015-12-10 | 2016-04-06 | 安徽相邦复合材料有限公司 | In-situ mixed particle reinforcement steel-based composite material and preparing method thereof |
| CN110952028A (en) * | 2019-12-19 | 2020-04-03 | 广东省材料与加工研究所 | Cr-Ni series austenite heat-resistant steel with enhanced phase precipitated in interior and preparation method thereof |
| CN110952028B (en) * | 2019-12-19 | 2020-12-08 | 广东省材料与加工研究所 | Cr-Ni series austenitic heat-resistant steel with endogenous precipitation strengthening phase and preparation method thereof |
| WO2021121021A1 (en) * | 2019-12-19 | 2021-06-24 | 广东省科学院材料与加工研究所 | Cr-ni austenitic heat-resistant steel with endogenous precipitated reinforced phase, preparation method therefor and use thereof |
| CN111304555A (en) * | 2020-03-31 | 2020-06-19 | 广东省材料与加工研究所 | Reinforced Cr-Mn-Ni-C-N austenitic heat-resistant steel by in-situ endogenous precipitation of ceramic particles and its preparation method and application |
| CN113249631A (en) * | 2021-03-25 | 2021-08-13 | 江苏省沙钢钢铁研究院有限公司 | Die casting heating furnace slide block and manufacturing method thereof |
| CN113584382A (en) * | 2021-07-06 | 2021-11-02 | 广东省科学院新材料研究所 | Iron-based ceramic composite material and preparation method and application thereof |
| CN113930656A (en) * | 2021-09-16 | 2022-01-14 | 华中科技大学 | A kind of N-ODS steel for fusion reactor and preparation method thereof |
| CN115838903A (en) * | 2022-12-09 | 2023-03-24 | 中国核动力研究设计院 | Nano mixture dispersed high-strength heat-resistant ferrite steel and application thereof |
| CN115838903B (en) * | 2022-12-09 | 2023-09-26 | 中国核动力研究设计院 | Nano-mixture-dispersed high-strength heat-resistant ferritic steel and application thereof |
| CN118957396A (en) * | 2024-07-26 | 2024-11-15 | 钢研钢纳(济南)金属科技有限公司 | A method for preparing high expansion and high strength austenitic steel |
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Application publication date: 20110914 |