CN106319347A - Silicon vanadium steel plate with promoted bulletproof performance and manufacturing method - Google Patents
Silicon vanadium steel plate with promoted bulletproof performance and manufacturing method Download PDFInfo
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- CN106319347A CN106319347A CN201610949408.2A CN201610949408A CN106319347A CN 106319347 A CN106319347 A CN 106319347A CN 201610949408 A CN201610949408 A CN 201610949408A CN 106319347 A CN106319347 A CN 106319347A
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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
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
- C21D1/32—Soft annealing, e.g. spheroidising
-
- 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
-
- 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
-
- 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
-
- 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
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
-
- 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
- C21D2211/008—Martensite
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Abstract
The invention relates to a silicon vanadium steel plate with promoted bulletproof performance and a manufacturing method. The bulletproof performance means the capacity of the silicon vanadium steel plate to resist against bullet shooting or glass breaking. The silicon vanadium steel plate can meet the practical requirements of stability and light weight. The silicon vanadium steel plate comprises the following chemical elements by weight percent: 0.28-0.43% of C, 0.3-2.0% of Si, 0.3-1.0% of Mn, 0.3-1.5% of Cr, 0.3-3.0% of Ni, 0.1-0.6% of Mo, 0.03-0.12% of V, not more than or equal to 0.03% of inevitable impurities and the balance of Fe.
Description
Technical field
The present invention relates to armour plate technology, a kind of silicon vanadium steel plate improving ballistic performance and manufacture method, institute
State ballistic performance and refer to silicon vanadium steel plate opposing bullet shooting or the ability of fragmentation, and adapt to stability and light-weighted practicality is wanted
Asking, described silicon vanadium steel plate refers to not only contain silicon but also contain vanadium in steel plate, and wherein vanadium can play the precipitation strength of MC type carbide
The refined crystalline strengthening effect that effect and/or obstruction crystal grain are grown up, described MC type refers to what metal or metalloid element and carbon were combined into
Crystal structure.The present invention improves the silicon vanadium steel plate of ballistic performance by respectively obtaining anti-to the restriction of carbon content different range
Tensile strength is not less than high performance ballistic steel plate and the tensile strength high performance ballistic steel plate not less than 1900MPa of 1700MPa.
Background technology
Armour plate is mainly used in the facility protection such as vehicle, house, sales counter, furniture, and the helmet, shield, flak jackets are inserted
The individual protection fields such as plate, are used for resisting bullet or fragmentation for personnel or the damage of facilities and equipment.People are for anti-in recent years
The stability and the lightweight requirements that play steel plate are more and more higher.When the intensity of steel plate and thickness reach certain level, just have anti-
Resilience energy power.Armour plate generally uses steel alloy, main improves intensity by the solution strengthening of carbon, adds appropriate other
Alloying element improves the quenching degree of steel, forms carbide and produces the effect such as precipitation strength and refined crystalline strengthening.It is presently used for shellproof
Unimach component system mainly includes CrNiMo system, MnB system etc., typically use smelting, continuous casting, hot rolling, quench, tempering etc.
Process produces, and also has the situation that rolled directly uses.Such as, publication number CN 105088090 A, disclose a kind of conjunction
Gold system is the CrNiMoTiB system bullet proof steel containing Cu, and after quenched temper, the cloth hardness of steel plate can reach 600HB level；
SSAB company ARMOX series armour employs CrNiMo system, different carbon content steel plates are quenched+temper after hardness reach
280-640HB；SSAB company DOMEX series employs the MnCrB alloy system of high-cleanness, high, and wherein phosphorus content is the conjunction of 0.3%
Gold steel hardness reaches 500HB；Publication number CN 103993235A, discloses the manufacture method of a kind of high-strength hot-rolled armor plate,
Alloy system uses SiMnCrNbTiB, does not contains Ni in composition, and after the quenched temper of steel plate, hardness reaches 500HB.
AISI4330 and AISI4340 steel is the unimach that comparison is classical, and being respectively adopted carbon content is 0.3% and 0.4%
CrNiMo composition system, follow-up multiple trades mark are all to improve on this basis.The inventors discovered that, shellproof in prior art
In steel plate, its alloying component does not the most comprise vanadium, even if or mentioning vanadium and be the most only classified as trace element, both without effect
The explanation of mechanism is also without the regulation of content range.But, the present inventor deliberately introduces in high performance ballistic steel plate technical research
V element, thus complete the present invention.
Summary of the invention
The present invention is directed to defect or deficiency present in prior art, it is provided that a kind of silicon vanadium steel plate improving ballistic performance and
Manufacture method, described ballistic performance refers to silicon vanadium steel plate opposing bullet shooting or the ability of fragmentation, and adapts to stability and light weight
The real requirement changed, described silicon vanadium steel plate refers to not only contain silicon but also contain vanadium in steel plate, and wherein vanadium can play MC type carbide
Precipitation strength effect and/or hinder the refined crystalline strengthening effect grown up of crystal grain, described MC type refer to metal or metalloid element with
The crystal structure that carbon is combined into.The present invention improves the silicon vanadium steel plate of ballistic performance by can to the restriction of carbon content different range
Respectively obtain the tensile strength high performance ballistic steel plate not less than 1700MPa and the tensile strength high-performance not less than 1900MPa
Armour plate.
Technical scheme is as follows:
A kind of silicon vanadium steel plate improving ballistic performance, it is characterised in that include following chemical element and weight content thereof: C:
0.28～0.43%；Si:0.3～2.0%；Mn:0.3～1.0%；Cr:0.3～1.5%；Ni:0.3～3.0%；Mo:0.1～
0.6%；V:0.03～0.12%；Inevitably impurity≤0.03%；Fe is surplus.
Wherein vanadium can play the precipitation strength effect of MC type carbide and/or hinder the refined crystalline strengthening grown up of crystal grain to make
With, described MC type refers to the crystal structure that metal or metalloid element and carbon are combined into.
Wherein C is 0.28～0.35%, the tensile strength >=1700MPa of described silicon vanadium steel plate.
Wherein C is more than 0.35～0.43%, the tensile strength >=1900MPa of described silicon vanadium steel plate.
Wherein inevitably impurity includes P and S, P≤0.010%, S≤0.005%.
The microstructure of described silicon vanadium steel plate is martensite+a small amount of retained austenite, or is tempered martensite+the most residual
Remaining austenite, volume fraction≤5% of described a small amount of retained austenite.
A kind of silicon vanadium steel board fabrication method improving ballistic performance, it is characterised in that include step successively: (1) smelts,
(2) casting, (3) strand heats, and (4) roll, (5) steel plate quenching, and (6) steel plate is tempered；The raw material of described smelting is according to following heavy
Amount formula preparation: C:0.28～0.43%；Si:0.3～2.0%；Mn:0.3～1.0%；Cr:0.3～1.5%；Ni:0.3～
3.0%；Mo:0.1～0.6%；V:0.03～0.12%；Inevitably impurity≤0.03%；Fe is surplus.
Described smelting includes using converter or electric furnace to smelt, and uses LF ladle refining furnace, RH vacuum degassing furnace
Or VD vacuum degassing furnace carries out refine；Described casting uses continuous casting or molding；Described strand heating include hot-loading and hot-conveying mode or
Person's cold charge mode, the heating-up temperature of described strand heating is 1100～1250 DEG C, and the time in stove is 120～330min.
In described rolling, finishing temperature is 800～1000 DEG C, controls cooling after rolling, eventually the coldest or coiling temperature be 300～
700℃；In described steel plate quenching, heating-up temperature is 850～950 DEG C, and temperature retention time is thickness of slab × (2～3) min/mm；Described steel
Plate temperature is 150～300 DEG C, and temperature retention time is thickness of slab × (3～5) min/mm.
Described rolling includes spheroidizing, through spheroidizing process after described silicon vanadium steel plate have higher plasticity with
Production in helmet class deep-draw part.
The technology of the present invention effect is as follows: a kind of silicon vanadium steel plate improving ballistic performance of the present invention, by introduce v element and
The combination of relatively high silicon content, not only improve ballistic performance (such as tensile strength is not less than 1700MPa) but also adapted to stability and
Light-weighted real requirement.Wherein vanadium (V:0.03～0.12%) can play MC type carbide precipitation strength effect and/or
Hindering the refined crystalline strengthening effect that crystal grain is grown up, described MC type refers to the crystal structure that metal or metalloid element and carbon are combined into.
Content of vanadium more than 0.12% after DeGrain, especially, when content higher than 0.15% time easily form bulky grain carbonitride
Reduce plasticity and toughness.Therefore, in the present invention, V element content controls 0.03～0.12%.By the limit to carbon content different range
Fixed, it is possible to obtain two kinds of strength steel: obtain tensile strength when C content is 0.28～0.35% and be not less than the shellproof of 1700MPa
Steel plate, obtains the tensile strength armour plate not less than 1900MPa when C content is 0.35～0.43%.
Accompanying drawing explanation
Fig. 1 shows the metallographic structure of 500 times under an optical microscope of shellproof silicon vanadium steel plate that C content is 0.3%.From figure
The metallographic structure of 1 it can be seen that steel plate quenched+after lonneal processes, it is thus achieved that tiny lath martensite tissue.
Fig. 2 shows the metallographic structure of 500 times under an optical microscope of shellproof silicon vanadium steel plate that C content is 0.4%.From figure
The metallographic structure of 2 it can be seen that steel plate quenched+after lonneal processes, it is thus achieved that tiny lath martensite tissue.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing (Fig. 1-Fig. 2), the present invention will be described.
Product and the method for implementing a kind of silicon vanadium steel plate improving ballistic performance of the present invention are as follows: by 180 tons of converter smeltings
Refining, LF stove and RH stove refine, chemical composition such as table 1.Continuous casting mode is used to cast.Strand hot charging, heating-up temperature is 1200
DEG C, the time in stove is 180min, and controlling finishing temperature control is 850～900 DEG C, rolls rear air cooling.Steel plate quenching heating-up temperature is
850～950 DEG C, temperature retention time is thickness of slab × (2～3) min/mm, and steel plate temperature is 150～220 DEG C, and temperature retention time is plate
Thickness × (3～5) min/mm, concrete technology parameter such as table 2.Table 3 is data of mechanical, and this result shows, invention steel warp
After table 2 parameter processing, the hardness of F601 steel reaches HB540, is higher than the hardness of HB500, the F602 steel being widely used at present the most relatively
F601 steel significantly improves and reaches HB580, compares discovery, and invention steel plasticity and toughness levels are slightly above other of same intensity rank
Steel grade, the refined crystalline strengthening effect of carbide and rational parameter select to serve weight important function.Table 4 is target test data, than
Relatively finding, under identical bullet target body system, the thickness of F601 steel is close with the steel plate that other hardness is HB500 rank, slightly reduces,
And the thickness of F602 steel can significantly reduce, show invention steel and there are more preferable bulletproof performance and lightweight potentiality.
Table 1, the chemical composition (mass percent) of invention steel
| Steel | C | Si | Mn | P | S | Cr | Ni | Mo | V | Al |
| F601 | 0.30 | 0.98 | 0.55 | 0.012 | 0.005 | 1.00 | 1.00 | 0.16 | 0.06 | 0.03 |
| F602 | 0.40 | 1.00 | 0.57 | 0.014 | 0.002 | 1.01 | 0.98 | 0.18 | 0.07 | 0.05 |
Table 2, technological parameter
Table 3, Mechanics Performance Testing
Note: sampling direction is horizontal.Being stretched as two sample means, impact is three sample means.Impact sample
Size 5mm × 10mm × 55mm.
Table 4, target tries
A kind of silicon vanadium steel plate improving ballistic performance, it is characterised in that include following chemical element and weight content thereof: C:
0.28～0.43%；Si:0.3～2.0%；Mn:0.3～1.0%；Cr:0.3～1.5%；Ni:0.3～3.0%；Mo:0.1～
0.6%；V:0.03～0.12%；Inevitably impurity≤0.03%；Fe is surplus.A kind of silicon vanadium steel improving ballistic performance
Board fabrication method, it is characterised in that including step successively: (1) smelts, (2) cast, and (3) strand heats, and (4) roll, (5) steel
Plate quenches, and (6) steel plate is tempered.
Chemical element in a kind of silicon vanadium steel plate (i.e. high performance ballistic steel plate) improving ballistic performance of the present invention
Design principle be:
The intensity of steel, as main gap solution strengthening factor, is played decisive role by carbon: C, it addition, carbon is in tempering
During formed carbide play precipitation strength effect.Carbon content is too high will reduce the weldability of steel, carbon content control in the present invention
System is 0.28～0.43%.
Silicon: Si plays solution strengthening effect in steel, improves ferrite intensity, additionally silicon suppression transition in drawing process
Type carbide changes to cementite, can properly increase temperature and improve the plasticity and toughness of steel and do not reduce the intensity of steel.This
Bright middle silicone content controls 0.3～2.0%；
Manganese: Mn is to expand austenitic area element, can play the effect of the quenching degree of solution strengthening and raising steel, but Mn is first
Cellulose content is too high easily causes segregation, the plasticity reducing steel and toughness, and Mn content should control 0.3～1.0%.
Aluminum: Al uses as deoxidizer, too high Al content easily causes thick alumina inclusion, Al unit in the present invention
Cellulose content is 0.02～0.05%.
Chromium: Cr can be effectively improved the quenching degree of steel and prevent high temperature surface oxidation, and in the present invention, Cr content should control
0.3～1.5%.
Nickel: Ni is austenite stabilizer element, can improve plasticity and the toughness of steel, Ni constituent content in the present invention simultaneously
Control 0.3～3.0%.
Molybdenum: Mo is effectively improved the quenching degree of steel, also strengthens crystal boundary, reduces temper brittleness, Mo constituent content control in the present invention
System is 0.1～0.6%.
Vanadium: V can improve the quenching degree of steel, can separate out MC type carbide and play precipitation strength effect, during reheating in steel
Hinder crystal grain to grow up and play Grain refinement, but easily form bulky grain carbonitride when content is higher than 0.15% and reduce
Plasticity and toughness.In the present invention, V element content controls 0.03～0.12%.
It addition, in armour of the present invention, be inevitably present the impurity element based on O, N, P, S, wherein P
≤ 0.010%, S≤0.005%.
The prototype micro of armour plate of the present invention is organized as rolled or annealed structure, including spheroidizing state group
Knitting, the microstructure after quenched temper is martensite+a small amount of retained austenite, tempered martensite+a small amount of residual austenite
Body.Armour plate of the present invention, described retained austenite volume fraction is less than 5%.The present invention is high performance ballistic steel plate
Proposing manufacture method, the armour plate obtained by this manufacture method has higher stability and preferable protective
Energy.
It is hereby stated that, described above contribute to skilled artisan understands that the invention, but and the unrestricted present invention
The protection domain created.Any equivalent described above, modification are improved without departing from the invention flesh and blood
And/or delete numerous conforming to the principle of simplicity and the enforcement that carries out, each fall within the protection domain of the invention.
Claims (10)
1. the silicon vanadium steel plate improving ballistic performance, it is characterised in that include following chemical element and weight content thereof: C:
0.28～0.43%；Si:0.3～2.0%；Mn:0.3～1.0%；Cr:0.3～1.5%；Ni:0.3～3.0%；Mo:0.1～
0.6%；V:0.03～0.12%；Inevitably impurity≤0.03%；Fe is surplus.
The silicon vanadium steel plate of raising ballistic performance the most according to claim 1, wherein vanadium can play the analysis of MC type carbide
Going out invigoration effect and/or the refined crystalline strengthening effect hindering crystal grain to grow up, described MC type refers to that metal or metalloid element are tied with carbon
The crystal structure of synthesis.
The silicon vanadium steel plate of raising ballistic performance the most according to claim 1, wherein C is 0.28～0.35%, described silicon vanadium
Tensile strength >=the 1700MPa of steel plate.
The silicon vanadium steel plate of raising ballistic performance the most according to claim 1, wherein C is more than 0.35～0.43%, described
Tensile strength >=the 1900MPa of silicon vanadium steel plate.
The silicon vanadium steel plate of raising ballistic performance the most according to claim 1, wherein inevitably impurity includes P and S,
P≤0.010%, S≤0.005%.
The silicon vanadium steel plate of raising ballistic performance the most according to claim 1, the microstructure of described silicon vanadium steel plate is geneva
Body+a small amount of retained austenite, or be, tempered martensite+a small amount of retained austenite, the volume integral of described a small amount of retained austenite
Number≤5%.
7. the silicon vanadium steel board fabrication method improving ballistic performance, it is characterised in that include step successively: (1) smelts, (2)
Casting, (3) strand heats, and (4) roll, (5) steel plate quenching, and (6) steel plate is tempered；The raw material of described smelting is joined according to following weight
Side's preparation: C:0.28～0.43%；Si:0.3～2.0%；Mn:0.3～1.0%；Cr:0.3～1.5%；Ni:0.3～
3.0%；Mo:0.1～0.6%；V:0.03～0.12%；Inevitably impurity≤0.03%；Fe is surplus.
The silicon vanadium steel board fabrication method of raising ballistic performance the most according to claim 7, it is characterised in that described smelting bag
Include employing converter or electric furnace is smelted, use LF ladle refining furnace, RH vacuum degassing furnace or VD vacuum degassing furnace to carry out
Refine；Described casting uses continuous casting or molding；The heating of described strand includes hot-loading and hot-conveying mode or cold charge mode, described strand
The heating-up temperature of heating is 1100～1250 DEG C, and the time in stove is 120～330min.
The silicon vanadium steel board fabrication method of raising ballistic performance the most according to claim 7, it is characterised in that described rolling
In, finishing temperature is 800～1000 DEG C, controls cooling after rolling, and the coldest or coiling temperature is 300～700 DEG C；Described steel plate quenching
Middle heating-up temperature is 850～950 DEG C, and temperature retention time is thickness of slab × (2～3) min/mm；Described steel plate temperature be 150～
300 DEG C, temperature retention time is thickness of slab × (3～5) min/mm.
The silicon vanadium steel board fabrication method of raising ballistic performance the most according to claim 7, it is characterised in that described rolling
Including spheroidizing, the described silicon vanadium steel plate after spheroidizing processes has higher plasticity for helmet class deep-draw part
Produce.
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Cited By (6)
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| CN109930069A (en) * | 2019-03-28 | 2019-06-25 | 北京科技大学 | A kind of manufacturing method for the light-duty steel plate having both ultrahigh-intensity high-toughness |
| CN110079741A (en) * | 2019-06-19 | 2019-08-02 | 本钢板材股份有限公司 | A kind of armour plate and its manufacturing method |
| CN111235488A (en) * | 2019-12-24 | 2020-06-05 | 河钢股份有限公司承德分公司 | Bulletproof steel plate and preparation method and application thereof |
| CN111455289A (en) * | 2020-06-09 | 2020-07-28 | 重庆钢铁研究所有限公司 | High-strength hot-rolled bulletproof steel plate and manufacturing method thereof |
| CN113201693A (en) * | 2021-05-11 | 2021-08-03 | 北京理工大学 | Bullet steel for penetration and killing of multifunctional warhead and preparation method thereof |
| CN113249653A (en) * | 2021-05-11 | 2021-08-13 | 北京理工大学 | Bullet steel for natural fragment warhead and preparation method thereof |
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