JP7241179B2 - 高塑性表層と高強度内層を有する勾配鉄鋼材料及びその製造方法 - Google Patents
高塑性表層と高強度内層を有する勾配鉄鋼材料及びその製造方法 Download PDFInfo
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- JP7241179B2 JP7241179B2 JP2021536047A JP2021536047A JP7241179B2 JP 7241179 B2 JP7241179 B2 JP 7241179B2 JP 2021536047 A JP2021536047 A JP 2021536047A JP 2021536047 A JP2021536047 A JP 2021536047A JP 7241179 B2 JP7241179 B2 JP 7241179B2
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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
- C21D8/005—Modifying the physical properties by deformation combined with, or followed by, heat treatment of ferrous alloys
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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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
- C21D1/28—Normalising
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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
- 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
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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
- 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
- C21D1/185—Hardening; Quenching with or without subsequent tempering from an intercritical temperature
-
- 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
- C21D1/19—Hardening; Quenching with or without subsequent tempering by interrupted quenching
-
- 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
- C21D1/84—Controlled slow cooling
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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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/005—Heat treatment of ferrous alloys containing Mn
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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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/008—Heat treatment of ferrous alloys containing Si
-
- 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
-
- 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
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
-
- 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
- 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
- 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
- C21D2201/00—Treatment for obtaining particular effects
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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
-
- 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)
- 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)
- Laminated Bodies (AREA)
Description
(1)本発明は2つの材料を複合する必要がなく、単一の材質、単一の材料に対し加工して製造されるだけである。
(2)本発明の方法はフローが短く、工程が簡単で、コストが低い。
(3)本発明の鋼板は有機的な統一体であり、両側の組織の差異はグラデーションの過程であり、両層間の冶金結合強度が良好である。
(4)本発明では、表層組織における炭素が超長距離拡散により、内層組織に移行するため、内部の炭素が増加して強度が向上するが、材料全体の炭素含有量が高くなく、良好な溶接性能を保持している。
Claims (2)
- 勾配鉄鋼材料において、その成分の重量パーセントは、0<C≦0.15%、0<Si≦1%、0<Mn≦1.5%であり、残部はFe及び不可避な不純物であり、且つ前記鉄鋼材料は表層がフェライト組織であり、内層がフェライト+ベイナイト組織であり、前記鉄鋼材料の表層はフェライト組織で、炭素含有量が0.02wt%以下であり、且つ前記鉄鋼材料表層の炭素含有量は前記鉄鋼材料内層の炭素含有量より低いことを特徴とする高塑性の表層と高強度の内層を有する勾配鉄鋼材料。
- 精錬、鋳造、圧延、及び熱処理工程を含み、そのうち、前記熱処理工程において、鉄鋼材料をオーステナイト温度Ac3以上に加熱し、3min以上に保温して、材料が完全にオーステナイト化したことを保証してから、0.5℃/s未満の冷却速度で2相域内のAr3とAr1との間の温度範囲内に冷却させ、さらに5℃/sより大きい冷却速度で室温までに急冷却させることを特徴とする請求項1に記載の高塑性の表層と高強度の内層を有する勾配鉄鋼材料の製造方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201811623001.6 | 2018-12-28 | ||
CN201811623001.6A CN111378895B (zh) | 2018-12-28 | 2018-12-28 | 一种表层高塑性内层高强度的梯度钢铁材料及制造方法 |
PCT/CN2019/129094 WO2020135690A1 (zh) | 2018-12-28 | 2019-12-27 | 一种表层高塑性内层高强度的梯度钢铁材料及制造方法 |
Publications (2)
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JP2022514915A JP2022514915A (ja) | 2022-02-16 |
JP7241179B2 true JP7241179B2 (ja) | 2023-03-16 |
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JP2021536047A Active JP7241179B2 (ja) | 2018-12-28 | 2019-12-27 | 高塑性表層と高強度内層を有する勾配鉄鋼材料及びその製造方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20220042122A1 (ja) |
EP (1) | EP3885460A4 (ja) |
JP (1) | JP7241179B2 (ja) |
CN (1) | CN111378895B (ja) |
WO (1) | WO2020135690A1 (ja) |
Families Citing this family (1)
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CN116516114A (zh) * | 2023-03-03 | 2023-08-01 | 河南牧业经济学院 | 一种超声辅助ECAP处理GCr15钢的工艺方法 |
Citations (5)
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JP2000096181A (ja) | 1998-09-25 | 2000-04-04 | Sumitomo Metal Ind Ltd | 溶接熱影響部においてuts欠陥を生じない鋼板とその製造方法 |
JP2001059129A (ja) | 1999-08-20 | 2001-03-06 | Nippon Steel Corp | 高温降伏強度と加工性の優れたアパーチャーフレーム用鋼板およびその製造方法 |
JP2014025131A (ja) | 2012-07-30 | 2014-02-06 | Nippon Steel & Sumitomo Metal | 熱間プレス鋼板部材、その製造方法と熱間プレス用鋼板 |
WO2014171057A1 (ja) | 2013-04-15 | 2014-10-23 | Jfeスチール株式会社 | 高強度熱延鋼板およびその製造方法 |
WO2018110152A1 (ja) | 2016-12-12 | 2018-06-21 | Jfeスチール株式会社 | 低降伏比角形鋼管用熱延鋼板およびその製造方法並びに低降伏比角形鋼管およびその製造方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH10130782A (ja) * | 1996-11-01 | 1998-05-19 | Nippon Steel Corp | 超高強度冷延鋼板およびその製造方法 |
JP5434960B2 (ja) * | 2010-05-31 | 2014-03-05 | Jfeスチール株式会社 | 曲げ性および溶接性に優れる高強度溶融亜鉛めっき鋼板およびその製造方法 |
ES2798774T3 (es) * | 2011-03-25 | 2020-12-14 | Nippon Steel Corp | Placa de acero con excelente durabilidad para cuchillas de troquelado en forma de banda y cuchilla de troquelado en forma de banda |
TWI468534B (zh) * | 2012-02-08 | 2015-01-11 | Nippon Steel & Sumitomo Metal Corp | 高強度冷軋鋼板及其製造方法 |
JP5833966B2 (ja) * | 2012-04-20 | 2015-12-16 | 株式会社神戸製鋼所 | 疲労特性に優れた溶接継手 |
CN103789686B (zh) * | 2014-02-27 | 2015-09-16 | 中国科学院金属研究所 | 一种消除加氢反应器用钢混晶、粗晶组织的热处理工艺 |
CN107663609B (zh) * | 2016-07-29 | 2020-03-27 | 本钢板材股份有限公司 | 一种低成本高扩孔用540MPa级热轧酸洗板的生产方法 |
CN108085591A (zh) * | 2017-11-24 | 2018-05-29 | 南阳汉冶特钢有限公司 | 一种具有低焊接裂纹敏感性能的钢板htnm400及其生产方法 |
CN109023057B (zh) * | 2018-08-27 | 2020-11-20 | 南京钢铁股份有限公司 | 一种提高x80m级管线钢心部冲击的生产方法 |
-
2018
- 2018-12-28 CN CN201811623001.6A patent/CN111378895B/zh active Active
-
2019
- 2019-12-27 EP EP19901488.7A patent/EP3885460A4/en active Pending
- 2019-12-27 US US17/415,107 patent/US20220042122A1/en active Pending
- 2019-12-27 JP JP2021536047A patent/JP7241179B2/ja active Active
- 2019-12-27 WO PCT/CN2019/129094 patent/WO2020135690A1/zh unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000096181A (ja) | 1998-09-25 | 2000-04-04 | Sumitomo Metal Ind Ltd | 溶接熱影響部においてuts欠陥を生じない鋼板とその製造方法 |
JP2001059129A (ja) | 1999-08-20 | 2001-03-06 | Nippon Steel Corp | 高温降伏強度と加工性の優れたアパーチャーフレーム用鋼板およびその製造方法 |
JP2014025131A (ja) | 2012-07-30 | 2014-02-06 | Nippon Steel & Sumitomo Metal | 熱間プレス鋼板部材、その製造方法と熱間プレス用鋼板 |
WO2014171057A1 (ja) | 2013-04-15 | 2014-10-23 | Jfeスチール株式会社 | 高強度熱延鋼板およびその製造方法 |
WO2018110152A1 (ja) | 2016-12-12 | 2018-06-21 | Jfeスチール株式会社 | 低降伏比角形鋼管用熱延鋼板およびその製造方法並びに低降伏比角形鋼管およびその製造方法 |
Also Published As
Publication number | Publication date |
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JP2022514915A (ja) | 2022-02-16 |
WO2020135690A1 (zh) | 2020-07-02 |
EP3885460A4 (en) | 2021-12-01 |
US20220042122A1 (en) | 2022-02-10 |
CN111378895B (zh) | 2021-10-19 |
CN111378895A (zh) | 2020-07-07 |
EP3885460A1 (en) | 2021-09-29 |
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