JP6981546B2 - 厚鋼板およびその製造方法 - Google Patents
厚鋼板およびその製造方法 Download PDFInfo
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- JP6981546B2 JP6981546B2 JP2020518831A JP2020518831A JP6981546B2 JP 6981546 B2 JP6981546 B2 JP 6981546B2 JP 2020518831 A JP2020518831 A JP 2020518831A JP 2020518831 A JP2020518831 A JP 2020518831A JP 6981546 B2 JP6981546 B2 JP 6981546B2
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- thick steel
- steel sheet
- pearlite
- bainite
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- 229910000831 Steel Inorganic materials 0.000 title claims description 149
- 239000010959 steel Substances 0.000 title claims description 149
- 238000004519 manufacturing process Methods 0.000 title claims description 24
- 238000001816 cooling Methods 0.000 claims description 77
- 229910001562 pearlite Inorganic materials 0.000 claims description 50
- 229910001563 bainite Inorganic materials 0.000 claims description 49
- 239000013078 crystal Substances 0.000 claims description 33
- 238000005096 rolling process Methods 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 19
- 239000000203 mixture Substances 0.000 claims description 19
- 230000009467 reduction Effects 0.000 claims description 18
- 230000001186 cumulative effect Effects 0.000 claims description 14
- 238000005098 hot rolling Methods 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 9
- 230000001965 increasing effect Effects 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 description 39
- 229910000859 α-Fe Inorganic materials 0.000 description 14
- 229910000734 martensite Inorganic materials 0.000 description 11
- 238000012360 testing method Methods 0.000 description 10
- 229910001566 austenite Inorganic materials 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 8
- 229910052761 rare earth metal Inorganic materials 0.000 description 8
- 150000002910 rare earth metals Chemical class 0.000 description 8
- 230000007423 decrease Effects 0.000 description 7
- 230000002708 enhancing effect Effects 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000001771 impaired effect Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000009864 tensile test Methods 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000000879 optical micrograph Methods 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 239000010953 base metal Substances 0.000 description 2
- 229910001567 cementite Inorganic materials 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000009661 fatigue test Methods 0.000 description 2
- 238000009863 impact test Methods 0.000 description 2
- KSOKAHYVTMZFBJ-UHFFFAOYSA-N iron;methane Chemical compound C.[Fe].[Fe].[Fe] KSOKAHYVTMZFBJ-UHFFFAOYSA-N 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 230000000644 propagated effect Effects 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 230000003252 repetitive effect Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910001039 duplex stainless steel Inorganic materials 0.000 description 1
- 238000001887 electron backscatter diffraction Methods 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000001878 scanning electron micrograph Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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- 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
-
- 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
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
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- C22C—ALLOYS
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- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
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- C22C—ALLOYS
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- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
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- C22C—ALLOYS
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- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
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- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- 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
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- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
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- C22C—ALLOYS
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- C22C—ALLOYS
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- C—CHEMISTRY; METALLURGY
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- C22C—ALLOYS
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- C—CHEMISTRY; METALLURGY
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C—CHEMISTRY; METALLURGY
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
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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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
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- C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
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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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
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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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/002—Bainite
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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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/009—Pearlite
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019009243 | 2019-01-23 | ||
| JP2019009243 | 2019-01-23 | ||
| PCT/JP2019/050700 WO2020153085A1 (fr) | 2019-01-23 | 2019-12-24 | Tôle d'acier épaisse, et procédé de fabrication de celle-ci |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPWO2020153085A1 JPWO2020153085A1 (ja) | 2021-02-18 |
| JP6981546B2 true JP6981546B2 (ja) | 2021-12-15 |
Family
ID=71735517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2020518831A Active JP6981546B2 (ja) | 2019-01-23 | 2019-12-24 | 厚鋼板およびその製造方法 |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6981546B2 (fr) |
| KR (1) | KR102557520B1 (fr) |
| CN (2) | CN117568718A (fr) |
| WO (1) | WO2020153085A1 (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113528957A (zh) * | 2021-06-30 | 2021-10-22 | 武汉钢铁有限公司 | 具有优良疲劳性能和耐腐蚀性能的高强度集装箱钢及其制造方法 |
| KR20240021260A (ko) | 2021-07-16 | 2024-02-16 | 제이에프이 스틸 가부시키가이샤 | 후강판 및 후강판의 제조 방법 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5680377A (en) * | 1979-12-06 | 1981-07-01 | Mitsubishi Electric Corp | Welding method of thin sheet |
| JP2785643B2 (ja) | 1993-05-11 | 1998-08-13 | 住友金属工業株式会社 | 湿潤硫化水素環境で耐疲労亀裂進展特性に優れるタンカー用鋼板 |
| JP2962134B2 (ja) | 1994-03-09 | 1999-10-12 | 住友金属工業株式会社 | 疲労亀裂進展抑制効果を有する鋼板 |
| JP3489243B2 (ja) | 1995-02-16 | 2004-01-19 | 住友金属工業株式会社 | フェライト・ベイナイト二相鋼 |
| JPH11229077A (ja) * | 1998-02-12 | 1999-08-24 | Nippon Steel Corp | 多層盛溶接部のｃｔｏｄ特性に優れた鋼板およびその製造方法 |
| JP4272594B2 (ja) * | 2004-06-17 | 2009-06-03 | 新日本製鐵株式会社 | 溶接歪の少ない鋼板及びその製造方法 |
| CN101289728B (zh) * | 2007-04-20 | 2010-05-19 | 宝山钢铁股份有限公司 | 低屈强比可大线能量焊接高强高韧性钢板及其制造方法 |
| JP4874435B2 (ja) * | 2010-02-08 | 2012-02-15 | 新日本製鐵株式会社 | 厚鋼板の製造方法 |
| JP6211946B2 (ja) * | 2013-09-20 | 2017-10-11 | 株式会社神戸製鋼所 | 疲労特性に優れた厚鋼板およびその製造方法 |
| JP6064896B2 (ja) * | 2013-12-27 | 2017-01-25 | Ｊｆｅスチール株式会社 | 耐疲労き裂伝ぱ特性に優れた鋼材およびその製造方法並びに耐疲労き裂伝ぱ特性に優れた鋼材の判定方法 |
| CN108315653A (zh) * | 2018-05-09 | 2018-07-24 | 舞阳钢铁有限责任公司 | 一种超厚超宽钢板及其正火热处理方法 |
-
2019
- 2019-12-24 CN CN202311433530.0A patent/CN117568718A/zh active Pending
- 2019-12-24 CN CN201980089824.1A patent/CN113330125A/zh active Pending
- 2019-12-24 KR KR1020217022156A patent/KR102557520B1/ko active IP Right Grant
- 2019-12-24 WO PCT/JP2019/050700 patent/WO2020153085A1/fr active Application Filing
- 2019-12-24 JP JP2020518831A patent/JP6981546B2/ja active Active
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020153085A1 (fr) | 2020-07-30 |
| KR102557520B1 (ko) | 2023-07-20 |
| KR20210102409A (ko) | 2021-08-19 |
| CN113330125A (zh) | 2021-08-31 |
| JPWO2020153085A1 (ja) | 2021-02-18 |
| CN117568718A (zh) | 2024-02-20 |
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