JP5759535B2 - 高成形性を有するフェライト・オーステナイト系ステンレス鋼の製造および利用方法 - Google Patents
高成形性を有するフェライト・オーステナイト系ステンレス鋼の製造および利用方法 Download PDFInfo
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- JP5759535B2 JP5759535B2 JP2013506692A JP2013506692A JP5759535B2 JP 5759535 B2 JP5759535 B2 JP 5759535B2 JP 2013506692 A JP2013506692 A JP 2013506692A JP 2013506692 A JP2013506692 A JP 2013506692A JP 5759535 B2 JP5759535 B2 JP 5759535B2
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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
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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
-
- 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
- C21D1/34—Methods of heating
- C21D1/42—Induction heating
-
- 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
- C21D6/002—Heat treatment of ferrous alloys containing Cr
-
- 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
- C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
-
- 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
-
- 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
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
-
- 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
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
-
- 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
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- 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
-
- 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
- C21D2201/02—Superplasticity
-
- 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
Description
Claims (17)
- 良好な成形性および高伸長性を有するフェライト・オーステナイト系ステンレス鋼の製造方法であって、該ステンレス鋼を熱処理して、ステンレス鋼のミクロ組織が熱処理条件下で45〜75%のオーステナイトを含有し、残留するミクロ組織がフェライトであり、ステンレス鋼の成形性を改善する変態誘起塑性(TRIP)を利用するためステンレス鋼にひずみを与えて変態マルテンサイトの比率を測定することにより測定されたステンレス鋼のMd30温度を0〜50℃に調節し、
前記ステンレス鋼は、質量%で、C:0.05%未満、Si:0.2〜0.7%、Mn:2〜5%、Cr:19〜20.5%、Ni:0.8〜1.35%、Mo:0.6%未満、Cu:1%未満、N:0.16〜0.24%、Fe:残量、および不可避不純物からなることを特徴とする方法。 - 請求項1に記載の方法において、前記熱処理を溶体化焼鈍で行うことを特徴とする方法。
- 請求項1に記載の方法において、前記熱処理を高周波誘導焼鈍で行うことを特徴とする方法。
- 請求項1に記載の方法において、前記熱処理を局部焼鈍で行うことを特徴とする方法。
- 請求項1ないし4のいずれかに記載の方法において、前記焼鈍は900〜1200℃の温度範囲で行うことを特徴とする方法。
- 請求項1ないし4のいずれかに記載の方法において、前記焼鈍は1000〜1150℃の温度範囲で行うことを特徴とする方法。
- 請求項1ないし6のいずれかに記載の方法において、前記測定されたMd30温度は10〜45℃に調節することを特徴とする方法。
- 請求項1ないし6のいずれかに記載の方法において、前記測定されたMd30温度は20〜35℃に調節することを特徴とする方法。
- 請求項1に記載の方法において、前記ステンレス鋼は、以下の1種以上の添加元素;W:0〜0.5%、Nb:0〜0.2%、Ti:0〜0.1%、V:0〜0.2%、Co:0〜0.5%、B:0〜50ppm、およびAl:0〜0.04%を含有することを特徴とする方法。
- 請求項1ないし9に記載の方法において、前記ステンレス鋼は、不純物としての不可避微量元素;O:0〜50ppm、S:0〜50ppm、およびP:0〜0.04%を含有することを特徴とする方法。
- 請求項1ないし10のいずれかに記載の方法において、前記ステンレス鋼は、質量%で、C:0.01〜0.04%を含有することを特徴とする方法。
- 請求項1ないし10のいずれかに記載の方法において、前記ステンレス鋼は、質量%で、Ni:1.0〜1.35%を含有することを特徴とする方法。
- 請求項1ないし10のいずれかに記載の方法において、前記ステンレス鋼は、質量%で、N:0.18〜0.22%を含有することを特徴とする方法。
- 良好な成形性および高伸長性を有するフェライト・オーステナイト系ステンレス鋼を適用条件で利用する方法であって、所望の適用条件用に変態誘起塑性(TRIP)効果を調節するために、前記フェライト・オーステナイト系ステンレス鋼を、ステンレス鋼にひずみを与えて変態マルテンサイトの比率を測定することにより測定されたMd30温度およびオーステナイト比率に基づいて熱処理し、
前記ステンレス鋼は、質量%で、C:0.05%未満、Si:0.2〜0.7%、Mn:2〜5%、Cr:19〜20.5%、Ni:0.8〜1.35%、Mo:0.6%未満、Cu:1%未満、N:0.16〜0.24%、Fe:残量、および不可避不純物からなることを特徴とする方法。 - 請求項14に記載の方法において、前記熱処理を溶体化焼鈍で行うことを特徴とする方法。
- 請求項14に記載の方法において、前記熱処理を高周波誘導焼鈍で行うことを特徴とする方法。
- 請求項14に記載の方法において、前記熱処理を局部焼鈍で行うことを特徴とする方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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FI20100178 | 2010-04-29 | ||
FI20100178A FI122657B (fi) | 2010-04-29 | 2010-04-29 | Menetelmä korkean muokattavuuden omaavan ferriittis-austeniittisen ruostumattoman teräksen valmistamiseksi ja hyödyntämiseksi |
PCT/FI2011/050345 WO2011135170A1 (en) | 2010-04-29 | 2011-04-18 | Method for manufacturing and utilizing ferritic-austenitic stainless steel with high formability |
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JP2013530305A JP2013530305A (ja) | 2013-07-25 |
JP5759535B2 true JP5759535B2 (ja) | 2015-08-05 |
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JP2013506692A Active JP5759535B2 (ja) | 2010-04-29 | 2011-04-18 | 高成形性を有するフェライト・オーステナイト系ステンレス鋼の製造および利用方法 |
Country Status (17)
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US (1) | US11286546B2 (ja) |
EP (1) | EP2563945B1 (ja) |
JP (1) | JP5759535B2 (ja) |
KR (1) | KR101616235B1 (ja) |
CN (1) | CN102869804B (ja) |
AU (1) | AU2011247272B2 (ja) |
BR (1) | BR112012027704B1 (ja) |
CA (1) | CA2796417C (ja) |
EA (1) | EA028820B1 (ja) |
ES (1) | ES2781864T3 (ja) |
FI (1) | FI122657B (ja) |
MX (1) | MX347888B (ja) |
MY (1) | MY161422A (ja) |
SI (1) | SI2563945T1 (ja) |
TW (1) | TWI512111B (ja) |
WO (1) | WO2011135170A1 (ja) |
ZA (1) | ZA201207755B (ja) |
Families Citing this family (14)
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FI126574B (fi) | 2011-09-07 | 2017-02-28 | Outokumpu Oy | Dupleksinen ruostumaton teräs |
FI125734B (en) * | 2013-06-13 | 2016-01-29 | Outokumpu Oy | Duplex ferritic austenitic stainless steel |
FI126798B (en) * | 2013-07-05 | 2017-05-31 | Outokumpu Oy | Stainless steel with strength against delayed cracking and process for its manufacture |
FI125466B (en) * | 2014-02-03 | 2015-10-15 | Outokumpu Oy | DUPLEX STAINLESS STEEL |
FI126577B (en) | 2014-06-17 | 2017-02-28 | Outokumpu Oy | DUPLEX STAINLESS STEEL |
KR101766550B1 (ko) * | 2014-12-26 | 2017-08-10 | 주식회사 포스코 | 린 듀플렉스 스테인리스강 및 그 제조방법 |
JP6379282B2 (ja) * | 2015-03-26 | 2018-08-22 | 新日鐵住金ステンレス株式会社 | せん断端面の耐食性に優れるフェライト・オーステナイト系ステンレス鋼板 |
WO2017066305A1 (en) | 2015-10-12 | 2017-04-20 | E. I. Du Pont De Nemours And Company | Back-contact solar cell and method for manufacturing the same |
EP3390679B1 (en) | 2015-12-14 | 2022-07-13 | Swagelok Company | Highly alloyed stainless steel forgings made without solution anneal |
KR101795884B1 (ko) * | 2015-12-21 | 2017-11-09 | 주식회사 포스코 | 유도가열이 가능하고 내식성이 우수한 스테인리스 강판 및 그 제조방법 |
KR101820526B1 (ko) * | 2016-08-10 | 2018-01-22 | 주식회사 포스코 | 굽힘 가공성이 우수한 린 듀플렉스 스테인리스강 |
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Also Published As
Publication number | Publication date |
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EA028820B1 (ru) | 2018-01-31 |
KR20150046358A (ko) | 2015-04-29 |
WO2011135170A1 (en) | 2011-11-03 |
US20130032256A1 (en) | 2013-02-07 |
JP2013530305A (ja) | 2013-07-25 |
EP2563945A4 (en) | 2016-12-07 |
FI20100178A (fi) | 2011-10-30 |
ZA201207755B (en) | 2013-12-23 |
TW201142042A (en) | 2011-12-01 |
CN102869804A (zh) | 2013-01-09 |
TWI512111B (zh) | 2015-12-11 |
FI122657B (fi) | 2012-05-15 |
AU2011247272A1 (en) | 2012-11-08 |
BR112012027704A2 (pt) | 2018-05-15 |
CA2796417A1 (en) | 2011-11-03 |
CN102869804B (zh) | 2015-02-11 |
EP2563945A1 (en) | 2013-03-06 |
US11286546B2 (en) | 2022-03-29 |
MX2012012430A (es) | 2012-11-29 |
MX347888B (es) | 2017-05-17 |
CA2796417C (en) | 2019-05-21 |
EP2563945B1 (en) | 2020-01-22 |
ES2781864T3 (es) | 2020-09-08 |
BR112012027704B1 (pt) | 2020-12-01 |
MY161422A (en) | 2017-04-14 |
FI20100178A0 (fi) | 2010-04-29 |
AU2011247272B2 (en) | 2016-04-28 |
EA201290923A1 (ru) | 2013-05-30 |
KR101616235B1 (ko) | 2016-04-27 |
SI2563945T1 (sl) | 2020-07-31 |
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