CN107419179A - A kind of high tough microalloying contains manganese hot rolled steel plate and preparation method thereof in Al - Google Patents
A kind of high tough microalloying contains manganese hot rolled steel plate and preparation method thereof in Al Download PDFInfo
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- CN107419179A CN107419179A CN201710673875.1A CN201710673875A CN107419179A CN 107419179 A CN107419179 A CN 107419179A CN 201710673875 A CN201710673875 A CN 201710673875A CN 107419179 A CN107419179 A CN 107419179A
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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
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0226—Hot rolling
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
- C21D8/0263—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following hot rolling
-
- 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
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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
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
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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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/001—Austenite
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/005—Ferrite
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- Chemical & Material Sciences (AREA)
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- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
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- Heat Treatment Of Steel (AREA)
Abstract
A kind of high tough microalloying contains manganese hot rolled steel plate and preparation method thereof in Al, belongs to young mobile steel plate technical field.Key to the invention is that obtaining the residual austenite body phase of certain volume fraction by rational chemical composition and technological design, the control of crystallite dimension, the partition of alloying element are realized.Its composition is respectively by mass percentage：C：0.15~0.2%, Mn：7.6~8%, Al：5.4~6%, Si：0.01~0.02%, Nb：0.02~0.04%, surplus is Fe and inevitable impurity.Its preparation method is, steel billet is made by composition proportion, and after heating and thermal insulation, hot rolling obtains hot rolled steel plate, and after hot rolled steel plate is air-cooled into room temperature, is heat-treated after being rolled, it is 6.85~6.99g/cm to obtain density3, 940~1250MPa of tensile strength, elongation percentage 20~40%, more than strength and ductility product 30GPa% high tough microalloying is containing manganese hot rolled steel plate in Al.
Description
Technical field
The invention belongs to young mobile high-strength light steel plate technical field, and in particular to the height is tough, and microalloying contains
Manganese hot rolled steel plate composition design and preparation method in Al.
Background technology
The resource scarcity and environmental pollution of growing tension are tackled, energy-conserving and environment-protective and lightweight development have turned into automobile industry and sent out
The inexorable trend of exhibition.At present, high intensity DP steel and TRIP steel are widely applied in the car, but its tensile strength and formability
Can be up for further improving.Strengthened using martensitic structure and the antiplasticization mechanism of metastable retained austenite, Q＆P steel are also progressively real
Commercial application is showed, but its combination property can't fully meet the demand of automotive light weight technology development.Therefore, a new generation is explored
The composition design and preparation method of high tough automobile steel, it is high to be desirably to obtain higher intensity, high formability, the lightweight of high performance-price ratio
Tough automobile steel is particularly urgent.
Novel light steel of the middle manganese systems Fe-Mn-Al-C steel as a kind of high specific strength (the ratio between intensity and density), have excellent
Good intensity and plasticity matching, application prospect are boundless.In recent years, learned for middle manganese systems Fe-Mn-Al-C automobile steels are domestic
Person has carried out a large amount of new varieties and research work.
Number of patent application is that 201310507894.9 patent discloses the middle manganese of 0.1-0.4%C+3-8%Mn component systems
Steel can obtain the steel plate of tensile strength 980MPa, elongation percentage more than 22% through hot continuous rolling, cold rolling, continuous annealing；Patent application
Number C is disclosed for 201610927995.5 patent：0.1-0.3%, Si：0.3-3.5%, Mn：3.0-15.0%, Al：1.0-
3.5%, V, Ti, Nb be each≤0.2% component system medium managese steel is hot rolled, quenching+tempering, cold rolling, annealing can be surrendered
590~970MPa of intensity, 980~1440MPa of tensile strength, breaking elongation 30~42%, more than strength and ductility product 40GPa% steel
Plate；The patent that number of patent application is 201610592858.0 discloses 0.3-0.5%C, 8-12%Mn, 1.8-3.5%Al, 0.25-
0.7%V medium managese steel is hot rolled, to obtain tensile strength be 1100~1600MPa for warm-rolling, bell-type annealing or cold rolling, continuous annealing,
Elongation percentage is 35~65%, and strength and ductility product reaches 35~65GPa% autobody sheet.
In summary, although medium managese steel can be obtained well by adjusting chemical composition, controlled rolling and Technology for Heating Processing
Intensity and plasticity, but because its alloy content is higher and the addition of the element such as Nb, V, Ti causes composition higher and one
As need complex preparation technology.And the present invention adds 0.02~0.04% on the basis of common medium managese steel component system
Nb elements carry out microalloying, while preparation technology is reduced into a step solution treatment, obtain 940~1250MPa of tensile strength,
Elongation percentage 20~40%, more than the strength and ductility product 30GPa% tough automobile steel of high-strength light.Commercial performance requirement is not only met,
And production cost and technological requirement are reduced, there is important economic implications and social benefit.
The content of the invention
It is an object of the invention to provide a kind of high preparation method of the tough microalloying containing manganese hot rolled steel plate in Al, uses
The design concept that composition is combined with organizational controls, small grains, ferrite+austenitic duplex group are obtained by solution treatment
Knit.On the basis of further optimizing and narrowing medium managese steel carbon and manganese component content, V-N steel element nb is added so that in steel
More high-volume fractional, stable retained austenite, while the elemental partition in austenite is adjusted, reduce C and Mn in austenite
Content so that retained austenite has enough stability to ensure that TRIP can occur for steel plate austenite phase in deformation process
(phase-change induced plastic) or TWIP (twinning induced plasticity) effect, so as to finally obtain high intensity and the excellent high-strength light of plasticity
Tough autobody sheet.
To achieve the above object, the present invention devises a kind of tough microalloying Fe-Mn-Al-C steel of high-strength light, its chemistry
Composition is：C：0.15~0.2%, Mn：7.6~8.0%, Al：5.4~6.0%, Si：0.01~0.02%, Nb：0.02~
0.04%, surplus is Fe and inevitable impurity.The density of experiment steel is 6.85~6.99g/cm3, reduced compared with pure iron
11.1~12.8%.
Middle manganese Fe-Mn-Al systems low density steel due to higher A1 contents and Mn contents are relatively low, room temperature texture typically with
Ferrite is matrix；By accurately controlling Mn in steel, Al, C element content allocates the volume fraction of austenite and crystallite dimension；
Microalloy element Nb can stablize ferrite, and can effectively pinning crystal boundary, meanwhile, solute Nb can postpone austenite to iron element
The phase transformation of body.
Above-mentioned preparation method of the tough microalloying of height containing manganese hot rolled steel plate in Al is as follows：
(1) smelted according to above-mentioned chemical composition, by converter, electric furnace or induction furnace smelt obtain it is above-mentioned chemistry into
The molten steel divided, ingot casting is then produced using molding and ingot casting is forged into slab；
(2) heating steel billet is incubated 2h, this is advantageous to diffusion of alloy elements, is provided uniformly for follow-up rolling to 1200 DEG C
Original structure；
(3) slab being prepared is subjected to hot rolling, technique is that start rolling temperature is 1100~1150 DEG C, and finishing temperature is
850~900 DEG C, the thin plate that thickness is 3mm is rolled into through 6 passages, is batched after rolling and is air-cooled to room temperature；
(4) by steel plate after hot rolling be heated rapidly to 700~1000 DEG C progress solution treatment, be incubated 0.5~1h after water quenching extremely
Room temperature.
The invention provides a kind of high tough microalloying to contain manganese hot-rolled steel in Al, alloying component and solid solution by optimization
Technological design, retained austenite is accurately have adjusted while the residual austenite content in hot rolling structure of steel greatly improved
Mechanical stability.The addition of micro Nb elements, raising austenite volume fraction is served, fining austenite grains, adjusts Ovshinsky
The effect of the elemental partition such as internal C, Mn.With the plasticity to match while the tensile strength of steel plate is improved.Tension
940~1250MPa of intensity, elongation percentage 20~40%, more than strength and ductility product 30GPa%.It is simultaneously cold compared to what is be widely used at present
Annealed steel is rolled, the preparation technology technological process for hot rolling+solution treatment that the present invention is taken significantly simplifies, and improves industrialization
Production cost is reduced while exploitativeness, adapt to automobile steel at this stage with the light-weighted growth requirement of forthcoming generations.
Brief description of the drawings
Fig. 1 is the tough microalloying Fe-Mn-Al-C steel residual austenites of high-strength light prepared by the embodiment of the present invention 1,2,4 and 6
Body content XRD picture；
Fig. 2 is the SEM shapes of the tough microalloying Fe-Mn-Al-C steel of high-strength light prepared by the embodiment of the present invention 1,2,4 and 6
Looks image：Wherein：
(a) it is SEM feature image of the high tough microalloying of embodiment 1 containing manganese hot-rolled steel in Al；
(b) it is SEM feature image of the high tough microalloying of embodiment 2 containing manganese hot-rolled steel in Al；
(c) it is SEM feature image of the high tough microalloying of embodiment 4 containing manganese hot-rolled steel in Al；
(d) it is SEM feature image of the high tough microalloying of embodiment 6 containing manganese hot-rolled steel in Al；
Fig. 3 is high stress of the tough microalloying containing manganese hot-rolled steel in Al prepared by the embodiment of the present invention 1,2,3,4,5 and 6
Strain curve image；
Fig. 4 is SEM shape of the high tough microalloying containing manganese hot-rolled steel precipitate containing Nb in Al prepared by the embodiment of the present invention 1
Looks image；
Fig. 5 is TEM shape of the high tough microalloying containing manganese hot-rolled steel precipitate containing Nb in Al prepared by the embodiment of the present invention 1
Looks image and diffraction pattern
Fig. 6 is EDS energy of the high tough microalloying containing manganese hot-rolled steel precipitate containing Nb in Al prepared by the embodiment of the present invention 1
Spectrogram
Fig. 7 is that high tough microalloying prepared by the embodiment of the present invention 4 contains manganese hot-rolled steel C, Mn partition EPMA patterns in Al
Figure,
Wherein：
(a) manganese hot-rolled steel selection area SEM shape appearance figures in Al are contained for high tough microalloying prepared by embodiment 4；
(b) contain manganese hot-rolled steel selection area C element in Al for high tough microalloying prepared by embodiment 4 and match somebody with somebody component；
(c) manganese hot-rolled steel selection area Mn elemental partition figures in Al are contained for high tough microalloying prepared by embodiment 4；
Embodiment
The present invention is described in further details below in conjunction with specific embodiment.
Embodiment 1
The chemical composition and mass percent of steel are as follows：C：0.15%, Mn:7.87%, Al：5.91%, Nb：0.03%,
Si：0.02%, remaining is Fe and inevitable impurity.Steel ingot uses vacuum induction furnace smelting, by Heating Steel Ingots to 1200 DEG C of insulations
2h, it is forged into steel billet.
By heating steel billet to 1200 DEG C insulation 2h, through 6 passages be rolled into thickness be 3mm thin plate, finishing temperature 850~
900 DEG C, then it is air-cooled to room temperature.
By the steel plate after hot rolling in heating furnace, 700 DEG C are heated to, is incubated l h, water quenching to room temperature.
Manganese hot-rolled steel in Al is contained to high tough microalloying made from this example and carries out correlated performance test, XRD characterizes knot
Fruit is as shown in Figure 1；Shown in SEM feature images such as Fig. 2 (a)；According to GB/T228-2002 " metal material tensile test at room temperature sides
Steel plate after heat treatment is processed into tensile sample by method ", and stress-strain diagram is as shown in Figure 3；The SEM high power figures of the precipitate containing Nb
Picture, TEM transmission images and chooses diffraction pattern and EDS power spectrums result respectively as shown in Fig. 4,5 and 6.
Embodiment 2
The chemical composition and mass percent of steel are as follows：C：0.18%, Mn:7.58%, Al：5.98%, Nb：0.02%,
Si：0.02%, remaining is Fe and inevitable impurity.Steel ingot uses vacuum induction furnace smelting, by Heating Steel Ingots to 1200 DEG C of insulations
2h, it is forged into steel billet.
By heating steel billet to 1200 DEG C insulation 2h, through 6 passages be rolled into thickness be 3mm thin plate, finishing temperature 850~
900 DEG C, then it is air-cooled to room temperature.
By the steel plate after hot rolling in heating furnace, 800 DEG C are heated to, is incubated lh, water quenching to room temperature.
Manganese hot-rolled steel in Al is contained to high tough microalloying made from this example and carries out correlated performance test, XRD characterizes knot
Fruit is as shown in Figure 1；Shown in SEM feature images such as Fig. 2 (b)；Stress-strain diagram is as shown in Figure 3.
Embodiment 3
The chemical composition and mass percent of steel are as follows：C：0.15%, Mn:7.87%, Al：5.91%, Nb：0.01%,
Si：0.01%, remaining is Fe and inevitable impurity.Steel ingot uses vacuum induction furnace smelting, by Heating Steel Ingots to 1200 DEG C of insulations
2h, it is forged into steel billet.
By heating steel billet to 1200 DEG C insulation 2h, through 6 passages be rolled into thickness be 3mm thin plate, finishing temperature 850~
900 DEG C, then it is air-cooled to room temperature.
By the steel plate after hot rolling in heating furnace, 850 DEG C are heated to, is incubated l h, water quenching to room temperature.
Manganese hot-rolled steel in Al is contained to high tough microalloying made from this example and carries out correlated performance test, ess-strain is bent
Line is as shown in Figure 3.
Embodiment 4
The chemical composition and mass percent of steel are as follows：C：0.21%, Mn:7.78%, Al：5.90%, Nb：0.04%,
Si：0.01%, remaining is Fe and inevitable impurity.Steel ingot uses vacuum induction furnace smelting, by Heating Steel Ingots to 1200 DEG C of insulations
2h, it is forged into steel billet.
By heating steel billet to 1200 DEG C insulation 2h, through 6 passages be rolled into thickness be 3mm thin plate, finishing temperature 850~
900 DEG C, then it is air-cooled to room temperature.
By the steel plate after hot rolling in heating furnace, 900 DEG C are heated to, is incubated l h, water quenching to room temperature.
Manganese hot-rolled steel in Al is contained to high tough microalloying made from this example and carries out correlated performance test, XRD characterizes knot
Fruit is as shown in Figure 1；Shown in SEM feature images such as Fig. 2 (c)；Stress-strain diagram is as shown in Figure 3；EPMA measures selection area SEM
Shown in shape appearance figure such as Fig. 7 (a), shown in selection area C element partition such as Fig. 7 (b), selection area Mn elemental partitions such as Fig. 7 (c) institutes
Show.
Embodiment 5
The chemical composition and mass percent of steel are as follows：C：0.18%, Mn:7.82%, Al：5.56%, Nb：0.02%,
Si：0.02%, remaining is Fe and inevitable impurity.Steel ingot uses vacuum induction furnace smelting, by Heating Steel Ingots to 1200 DEG C of insulations
2h, it is forged into steel billet.
By heating steel billet to 1200 DEG C insulation 2h, through 6 passages be rolled into thickness be 3mm thin plate, finishing temperature 850~
900 DEG C, then it is air-cooled to room temperature.
By the steel plate after hot rolling in heating furnace, 950 DEG C are heated to, is incubated l h, water quenching to room temperature.
Manganese hot-rolled steel in Al is contained to high tough microalloying made from this example and carries out correlated performance test, ess-strain is bent
Line is as shown in Figure 3.
Embodiment 6
The chemical composition and mass percent of steel are as follows：C：0.20%, Mn:7.84%, Al：5.69%, Nb：0.02%,
Si：0.02%, remaining is Fe and inevitable impurity.Steel ingot uses vacuum induction furnace smelting, by Heating Steel Ingots to 1200 DEG C of insulations
2h, it is forged into steel billet.
By heating steel billet to 1200 DEG C insulation 2h, through 6 passages be rolled into thickness be 3mm thin plate, finishing temperature 850~
900 DEG C, then it is air-cooled to room temperature.
By the steel plate after hot rolling in heating furnace, 1000 DEG C are heated to, is incubated lh, water quenching to room temperature.
Manganese hot-rolled steel in Al is contained to high tough microalloying made from this example and carries out correlated performance test, XRD characterizes knot
Fruit is as shown in Figure 1；Shown in SEM feature images such as Fig. 2 (d)；Stress-strain diagram is as shown in Figure 3.
Claims (5)
1. a kind of high tough microalloying contains manganese hot rolled steel plate in Al, it is characterised in that the chemical composition ratio of steel plate is：C：
0.15~0.20%, Mn：7.6~8.0%, Al：5.4~6.0%, Si：0.01~0.02%, Nb：0.02~0.04%, surplus
For Fe and inevitable impurity.
2. high tough preparation method of the microalloying containing manganese hot rolled steel plate in Al as claimed in claim 1, including smelt, forge
Make, hot rolling, solution treatment, it is characterised in that comprise the following steps that：
(1) chemical composition according to claim 1 is smelted, and casting ingot is forged into slab；
(2) slab that step (1) is prepared carries out hot rolling, and technique is to 1200 DEG C by heating steel billet, 2h is incubated, through 6
It is secondary to be rolled into the thin plate that thickness is 3mm, batched after rolling and be air-cooled to room temperature；
(3) it is heat-treated after hot rolled plate is rolled, using solid solution treatment process, steel plate is heated rapidly to 700~1000 DEG C, protected
Water quenching is to room temperature after 0.5~1h of temperature.
3. preparation method of the tough microalloying of height containing manganese hot rolled steel plate in Al according to claim 2, it is characterised in that
Hot rolling start rolling temperature in step (2) is 1050~1150 DEG C, and finishing temperature is 850~900 DEG C.
4. preparation method of the tough microalloying of height containing manganese hot rolled steel plate in Al according to claim 2, it is characterised in that
Hot rolled plate hardening heat in step (3) is 900 DEG C, soaking time 1h.
5. a kind of high tough microalloying as claimed in claim 1 contains manganese hot rolled steel plate in Al, it is characterised in that after heat treatment
The two-phase structure based on δ-ferrite+austenite is presented in steel plate, and austenite volume fraction is higher than 34%, austenite grain size
For 5~16 μm, Mn contents are 8.65~9.47% in austenite, and C content is 0.92~1.01%；The tough micro- conjunction of high-strength light
Aurification hot rolling containing Al medium managese steel plate density is 6.85~6.99g/cm3, 940~1250MPa of tensile strength, elongation percentage 20~
40%, more than strength and ductility product 30GPa%.
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| CN201710673875.1A CN107419179B (en) | 2017-08-09 | 2017-08-09 | High-strength and high-toughness microalloyed Al-containing medium manganese hot rolled steel plate and preparation method thereof |
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| CN201710673875.1A CN107419179B (en) | 2017-08-09 | 2017-08-09 | High-strength and high-toughness microalloyed Al-containing medium manganese hot rolled steel plate and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108866416A (en) * | 2018-06-11 | 2018-11-23 | 西安建筑科技大学 | A kind of high tough antioxygen molybdenum alloy and preparation method |
| CN111961982A (en) * | 2020-09-15 | 2020-11-20 | 东北大学 | Hot-rolled medium manganese steel plate with high hole expansion rate, high strength and high elongation and preparation method thereof |
| CN111996465A (en) * | 2020-08-10 | 2020-11-27 | 北京科技大学 | Light medium manganese steel hot rolled plate for ultrahigh-strength automobile and preparation method thereof |
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| CN101942600A (en) * | 2010-09-15 | 2011-01-12 | 北京科技大学 | Preparation method of transformation-induced plasticity (TRIP) medium-manganese hot-rolled steel sheet |
| CN103667883A (en) * | 2013-12-26 | 2014-03-26 | 北京科技大学 | Low-density and high-toughness automobile-used steel board and preparation process |
| CN104694829A (en) * | 2015-01-15 | 2015-06-10 | 天津威尔朗科技有限公司 | High-toughness wear-resisting medium manganese steel hot rolled plate and manufacturing method thereof |
| CN106498292A (en) * | 2016-10-31 | 2017-03-15 | 东北大学 | One kind is containing manganese automotive sheet in V, Ti and Nb and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101942600A (en) * | 2010-09-15 | 2011-01-12 | 北京科技大学 | Preparation method of transformation-induced plasticity (TRIP) medium-manganese hot-rolled steel sheet |
| CN103667883A (en) * | 2013-12-26 | 2014-03-26 | 北京科技大学 | Low-density and high-toughness automobile-used steel board and preparation process |
| CN104694829A (en) * | 2015-01-15 | 2015-06-10 | 天津威尔朗科技有限公司 | High-toughness wear-resisting medium manganese steel hot rolled plate and manufacturing method thereof |
| CN106498292A (en) * | 2016-10-31 | 2017-03-15 | 东北大学 | One kind is containing manganese automotive sheet in V, Ti and Nb and preparation method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108866416A (en) * | 2018-06-11 | 2018-11-23 | 西安建筑科技大学 | A kind of high tough antioxygen molybdenum alloy and preparation method |
| CN108866416B (en) * | 2018-06-11 | 2019-07-05 | 西安建筑科技大学 | A kind of high tough antioxygen molybdenum alloy and preparation method |
| CN111996465A (en) * | 2020-08-10 | 2020-11-27 | 北京科技大学 | Light medium manganese steel hot rolled plate for ultrahigh-strength automobile and preparation method thereof |
| CN111996465B (en) * | 2020-08-10 | 2021-11-05 | 北京科技大学 | Light medium manganese steel hot rolled plate for ultrahigh-strength automobile and preparation method thereof |
| CN111961982A (en) * | 2020-09-15 | 2020-11-20 | 东北大学 | Hot-rolled medium manganese steel plate with high hole expansion rate, high strength and high elongation and preparation method thereof |
| CN111961982B (en) * | 2020-09-15 | 2022-02-01 | 东北大学 | Hot-rolled medium manganese steel plate with high hole expansion rate, high strength and high elongation and preparation method thereof |
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| CN107419179B (en) | 2019-12-31 |
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