CN1076223A - Hot-rolled low-alloy high-strength steel plate and preparation technology thereof - Google Patents
Hot-rolled low-alloy high-strength steel plate and preparation technology thereof Download PDFInfo
- Publication number
- CN1076223A CN1076223A CN92106089A CN92106089A CN1076223A CN 1076223 A CN1076223 A CN 1076223A CN 92106089 A CN92106089 A CN 92106089A CN 92106089 A CN92106089 A CN 92106089A CN 1076223 A CN1076223 A CN 1076223A
- Authority
- CN
- China
- Prior art keywords
- steel plate
- hot
- preparation technology
- steel
- strength steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 29
- 239000010959 steel Substances 0.000 title claims abstract description 29
- 238000005516 engineering process Methods 0.000 title claims description 5
- 238000002360 preparation method Methods 0.000 title claims description 5
- 229910045601 alloy Inorganic materials 0.000 title abstract description 7
- 239000000956 alloy Substances 0.000 title abstract description 7
- 238000005096 rolling process Methods 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 claims description 3
- 229910000905 alloy phase Inorganic materials 0.000 claims description 2
- 230000006698 induction Effects 0.000 claims description 2
- 229910001566 austenite Inorganic materials 0.000 abstract description 10
- 230000000717 retained effect Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 229910000851 Alloy steel Inorganic materials 0.000 abstract description 2
- 238000005057 refrigeration Methods 0.000 abstract 1
- 229910001563 bainite Inorganic materials 0.000 description 4
- 230000009466 transformation Effects 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000005098 hot rolling Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000005275 alloying Methods 0.000 description 2
- 229910000734 martensite Inorganic materials 0.000 description 2
- 229910000794 TRIP steel Inorganic materials 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Heat Treatment Of Steel (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Abstract
The present invention relates to the low alloy steel field.Specifically just provided a kind of low-alloy high-strength steel plate that has good strength and plasticity because of the TRIP effect of utilizing retained austenite.Composition of the present invention is as follows: C:0.20～0.40, Si:1.5～2.1, Mn:1.0～2.0, S:＜0.01, P:＜0.01, Fe: surplus, its principal feature are to utilize controlled rolling and control refrigeration technique, increase the quantity of retained austenite in the steel plate as far as possible, thereby make such steel plate have higher intensity and good plasticity.
Description
The present invention relates to the low alloy steel field, specifically just provided a kind of low-alloy phase change induction plasticity type high tensile steel plate and preparation technology thereof who promptly has higher-strength to have good plasticity again.
Because strain, steel brings out martensitic transformation more than martensitic phase height Ms temperature, and this moment, steel presented than high-ductility, was called phase-change induced plastic (Transformatlon Induced Plasticlty) phenomenon.In the general alloy TRJP phenomenon being arranged all, is in austenitic alloy or the steel in room temperature only, and the TRIP phenomenon is apparent in view.The TRIP steel of people such as V.F.Zackay name is an austenite structure under the room temperature, and higher intensity and plasticity are arranged, but owing to contain a large amount of alloying elements, cost height, and complex process fail to obtain industrial application always.What use in industrial acquisition at present is a kind of thermal treatment low-alloy TRIP type high-strength steel, such steel is to utilize the TRIP effect of a certain amount of retained austenite that is contained to realize high strength and high-ductility, the technological process of this kind steel is as follows, steel is heated to the (two-phase region of α+γ), be cooled to the insulation of bainite temperature subsequently, obtain ferrite at last, bainite adds the retained austenite three-phase contexture, such steel plate is when cold deformation, because the TRIP character of retained austenite, make steel plate both have higher intensity, have higher plasticity simultaneously again.The alloying element content of this kind steel is not high, cost is lower, but will realize above-mentioned processing requirement, and heating, cooling and the phase transformation of advanced continuous annealing production line with the control steel plate must be arranged.
The low-alloy TRIP type high tensile steel plate and the preparation technology thereof that the object of the present invention is to provide existing hot rolling of a kind of usefulness and cooling apparatus to produce.
To the effect that of the present invention, the composition of steel plate following (weight percent):
C Si Mn S P Fe
0.20～0.40 1.5～2.1 1.0～2.0＜0.01＜0.01 surplus
The key that realizes this TRIP type high tensile steel plate is the control to the operation of rolling and process of cooling thereof, controlled rolling process as shown in Figure 1, every processing parameter is as follows:
1150 ℃～1200 ℃ of blank heating temperature To
850 ℃～900 ℃ of finishing temperature Tf
Finish rolling draft ε〉50%
Roll 15～40 ℃/S of postcooling speed CR
The analog roll Wen WenduT that goes bail for
2350～420 ℃
Finishing temperature guarantees to roll in the system two-phase region or higher slightly temperature finishes.Steel plate had part γ to change α into after the control of rolling postcooling speed CR had then guaranteed hot rolling, but do not generate perlite (P), when γ → α, because the solid solubility of carbon in α is than much smaller among the γ, originally among the α carbon of solid solution will to do not take place γ that γ → α changes mutually in enrichment, thereby make γ become more stable, experiment shows, the intensity level of steel plate is along with the increase of CR increases progressively, but plasticity value and intensity one plasticity coupling index is appearance one peak platform in CR is the scope of 15～40 ℃/S then, exceeds this scope and then falls sharply.The analog roll Wen WenduT that goes bail for
2Be chosen in the bainite transformation humidity province, make the part austenitic transformation become the good comprehensive properties bainite, simultaneously partially stabilized γ phase factor contains elements such as more C, Mn, remains with the form of retained austenite.Influence also is huge to hot rolling draft ε to the amount of retained austenite in addition, has only when ε＞50% γ
RAmount could be greater than 10%, the present invention is owing to implemented above-mentioned operational path in a word, increased the quantity of retained austenite in the steel plate as much as possible, thereby make such steel plate have higher intensity and plasticity, when breakdown point is 1000MPa, stretch percentage elongation can reach 25%, and this is that any other type hot rolled steel sheet is all inaccessible.Embodiment is described in detail in detail below.
Embodiment 1
The chemical ingredients of steel:
C Si Mn S P Fe
0.32 2.07 1.68 0.0075 0.010 surpluses
Processing parameter is chosen
Ts＝1200℃
Tf＝880℃
ε＝65%
CR＝18℃/S
T
2＝400℃
Record in the steel plate sequence number 1 in the retained austenite content and every performance index such as table 1.
Embodiment 2
CR is 40 ℃/S, and composition and other processing parameters are with embodiment 1, and performance is referring to sequence number 2 in the table.
Embodiment 3
Composition:
C Si Mn S P Fe
0.23 2.03 1.66 0.0075 0.010 surpluses
Processing parameter is with embodiment 1, and performance is referring to sequence number 3 in the table.
Table 1
γ
RYs Ts EL Ts×EL
(%) (MPa) (MPa) (%) (10
3MPa)
1 11 750 960 24 23
2 18 800 1000 25 24
3 13 600 970 25 22
Claims (2)
1, a kind of hot-rolled low-alloy phase change induction plasticity high tensile steel plate is characterized in that the composition design is as follows:
C SI Mn S P Fe
0.20～0.40 1.5～2.1 1.0～2.0＜0.01＜0.01 surplus
2,, it is characterized in that processing parameter control is as follows by the preparation technology of the described steel plate of claim 1:
1150 ℃～1200 ℃ of blank heating temperature To
850 ℃～900 ℃ of finishing temperature Tf
Finish rolling draft ε〉50%
Roll 15～40 ℃/S of postcooling speed CR
The analog roll Wen WenduT that goes bail for
2350～420 ℃
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92106089A CN1076223A (en) | 1992-03-11 | 1992-03-11 | Hot-rolled low-alloy high-strength steel plate and preparation technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92106089A CN1076223A (en) | 1992-03-11 | 1992-03-11 | Hot-rolled low-alloy high-strength steel plate and preparation technology thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1076223A true CN1076223A (en) | 1993-09-15 |
Family
ID=4941783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN92106089A Withdrawn CN1076223A (en) | 1992-03-11 | 1992-03-11 | Hot-rolled low-alloy high-strength steel plate and preparation technology thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1076223A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1079447C (en) * | 1999-11-30 | 2002-02-20 | 河北工业大学 | Interface-free carbide low-carbon martensite high strength steel |
| CN101942601A (en) * | 2010-09-15 | 2011-01-12 | 北京科技大学 | Manufacturing method of transformation induced plasticity steel containing V hot rolling |
| CN102140606A (en) * | 2011-03-17 | 2011-08-03 | 北京科技大学 | Hot rolled high-strength low-alloy multi-phase steel and preparation method thereof |
| CN101263239B (en) * | 2005-08-04 | 2012-06-27 | 安赛乐米塔尔法国公司 | Method of producing high-strength steel plates with excellent ductility and plates thus produced |
| CN103215423A (en) * | 2013-04-18 | 2013-07-24 | 首钢总公司 | Production method of hot rolled and phase-change induced plastic steel coil |
| CN104233092A (en) * | 2014-09-15 | 2014-12-24 | 首钢总公司 | Hot-rolled TRIP steel and preparation method thereof |
| CN115537635A (en) * | 2022-09-16 | 2022-12-30 | 北京科技大学 | Particle-reinforced wear-resistant steel plate NM300 based on TRIP effect and preparation method thereof |
-
1992
- 1992-03-11 CN CN92106089A patent/CN1076223A/en not_active Withdrawn
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1079447C (en) * | 1999-11-30 | 2002-02-20 | 河北工业大学 | Interface-free carbide low-carbon martensite high strength steel |
| CN101263239B (en) * | 2005-08-04 | 2012-06-27 | 安赛乐米塔尔法国公司 | Method of producing high-strength steel plates with excellent ductility and plates thus produced |
| CN101942601A (en) * | 2010-09-15 | 2011-01-12 | 北京科技大学 | Manufacturing method of transformation induced plasticity steel containing V hot rolling |
| CN101942601B (en) * | 2010-09-15 | 2012-11-14 | 北京科技大学 | Manufacturing method of transformation induced plasticity steel containing V hot rolling |
| CN102140606A (en) * | 2011-03-17 | 2011-08-03 | 北京科技大学 | Hot rolled high-strength low-alloy multi-phase steel and preparation method thereof |
| CN103215423A (en) * | 2013-04-18 | 2013-07-24 | 首钢总公司 | Production method of hot rolled and phase-change induced plastic steel coil |
| CN104233092A (en) * | 2014-09-15 | 2014-12-24 | 首钢总公司 | Hot-rolled TRIP steel and preparation method thereof |
| CN115537635A (en) * | 2022-09-16 | 2022-12-30 | 北京科技大学 | Particle-reinforced wear-resistant steel plate NM300 based on TRIP effect and preparation method thereof |
| CN115537635B (en) * | 2022-09-16 | 2024-01-23 | 北京科技大学 | Grain-reinforced wear-resistant steel plate NM300 based on TRIP effect and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1096029B1 (en) | High tensile hot-dip zinc-coated steel plate excellent in ductility and method for production thereof | |
| CN1208143C (en) | Method for mfg of high-quality seamless steel pipe | |
| CN101429621B (en) | Nitrogen intensified high-carbon twin crystal inducement plastic steel material and its production technique | |
| CN101580916B (en) | High-strength high-plasticity twinning-induced plasticity steel and manufacturing method thereof | |
| CN110093564A (en) | A kind of 1180MPa grade super strength low cost cold rolling quenching partition steel and its manufacturing method | |
| CN114959197B (en) | High-plasticity steel containing full-film-shaped residual austenite and treatment process thereof | |
| CA1123718A (en) | Method for producing a dual-phase, ferrite-martensite steel sheet | |
| CN110093491B (en) | Cold-rolled hot-galvanized dual-phase steel and manufacturing method thereof | |
| CN101855379A (en) | Fire-resistant steel material with excellent resistance to reheat embrittlement and with low-temperature toughness at welded heat-affected parts, and manufacturing method thereof | |
| CN101906585A (en) | High-performance fire-resistant steel plate for building structure and manufacturing method thereof | |
| Huang et al. | Combining a novel cyclic pre-quenching and two-stage heat treatment in a low-alloyed TRIP-aided steel to significantly enhance mechanical properties through microstructural refinement | |
| EP0796928A1 (en) | Multiple phase steel and process for its manufacture | |
| CN101029351A (en) | Method for producing medium-carbon steel deformation induced ferrite | |
| CN1076223A (en) | Hot-rolled low-alloy high-strength steel plate and preparation technology thereof | |
| CN111187977A (en) | 690 MPa-grade anti-seismic, corrosion-resistant and fire-resistant medium-thickness plate steel and manufacturing method thereof | |
| CN109355573B (en) | One-steel multi-stage hot rolled steel plate based on carbon distribution technology and manufacturing method thereof | |
| JP2833004B2 (en) | Fine grain pearlite steel | |
| CN109338229B (en) | Low-carbon Si-Mn series hot-rolled complex phase steel based on quenching-carbon distribution concept and manufacturing method thereof | |
| JPH07110970B2 (en) | Method for producing acicular ferritic stainless steel with excellent resistance to stress corrosion cracking | |
| CN1056716A (en) | A kind of high strength cold-rolled dual phase sheet steel and manufacture method | |
| CN118241017A (en) | High-plasticity TBF steel and treatment process thereof | |
| CN109518092A (en) | The low silicon analysis of producing hot rolled TRIP containing aluminium of high strength and ductility Nb-microalloying and preparation method | |
| CN1463899A (en) | High-strength packaging steel band and thermal treatment process thereof | |
| KR100415722B1 (en) | a method of manufacturing austenite stainless steel with high strength | |
| JPH0459941A (en) | High strength steel having toughness |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C03 | Withdrawal of patent application (patent law 1993) | ||
| WW01 | Invention patent application withdrawn after publication |