JP7504875B2 - 溶接部の機械的性質が向上したフェライト系ステンレス鋼及びフェライト系ステンレス鋼管 - Google Patents
溶接部の機械的性質が向上したフェライト系ステンレス鋼及びフェライト系ステンレス鋼管 Download PDFInfo
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- 229910001220 stainless steel Inorganic materials 0.000 title claims description 50
- 239000010936 titanium Substances 0.000 claims description 27
- 238000003466 welding Methods 0.000 claims description 24
- 239000010955 niobium Substances 0.000 claims description 20
- 150000004767 nitrides Chemical class 0.000 claims description 16
- 229910052719 titanium Inorganic materials 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 14
- 239000002244 precipitate Substances 0.000 claims description 13
- 230000007704 transition Effects 0.000 claims description 13
- 229910052758 niobium Inorganic materials 0.000 claims description 12
- 229910052757 nitrogen Inorganic materials 0.000 claims description 11
- 229910052804 chromium Inorganic materials 0.000 claims description 10
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 8
- 239000012535 impurity Substances 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- 229910001068 laves phase Inorganic materials 0.000 claims description 7
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 5
- 150000001247 metal acetylides Chemical class 0.000 claims description 3
- 239000012071 phase Substances 0.000 description 34
- 238000009826 distribution Methods 0.000 description 15
- 239000013078 crystal Substances 0.000 description 13
- 230000007797 corrosion Effects 0.000 description 11
- 238000005260 corrosion Methods 0.000 description 11
- 238000007711 solidification Methods 0.000 description 11
- 230000008023 solidification Effects 0.000 description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- 230000015572 biosynthetic process Effects 0.000 description 10
- 239000011651 chromium Substances 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 10
- 239000002184 metal Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 230000006911 nucleation Effects 0.000 description 10
- 238000010899 nucleation Methods 0.000 description 10
- 229910052799 carbon Inorganic materials 0.000 description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 7
- 238000005315 distribution function Methods 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 239000010949 copper Substances 0.000 description 6
- 239000010935 stainless steel Substances 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 238000011161 development Methods 0.000 description 5
- 230000004927 fusion Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910052759 nickel Inorganic materials 0.000 description 4
- 239000002828 fuel tank Substances 0.000 description 3
- 229910000734 martensite Inorganic materials 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 229910000859 α-Fe Inorganic materials 0.000 description 3
- 238000005336 cracking Methods 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 238000005272 metallurgy Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 239000006104 solid solution Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 229910003470 tongbaite Inorganic materials 0.000 description 2
- 229910018516 Al—O Inorganic materials 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- -1 TiN nitrides Chemical class 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- CXOWYMLTGOFURZ-UHFFFAOYSA-N azanylidynechromium Chemical compound [Cr]#N CXOWYMLTGOFURZ-UHFFFAOYSA-N 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- UFGZSIPAQKLCGR-UHFFFAOYSA-N chromium carbide Chemical compound [Cr]#C[Cr]C#[Cr] UFGZSIPAQKLCGR-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000001887 electron backscatter diffraction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009863 impact test Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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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
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- 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
- C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips 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
- 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
- C21D8/10—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
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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
- C21D8/10—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
- C21D8/105—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies 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
- 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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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
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- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
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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
- C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
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- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
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- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/20—Ferrous alloys, e.g. steel alloys containing chromium with copper
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- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
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- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
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- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
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- 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
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- 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
- C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
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- 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
- C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
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- 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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- 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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- Crystallography & Structural Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Arc Welding In General (AREA)
Description
Claims (3)
- 重量%で、C:0.005%~0.02%、N:0.005~0.02%、Cr:11.0~13.0%、Ti:0.16~0.3%、Nb:0.1~0.3%、Al:0.005~0.05%、残りは、Fe及び不可避な不純物からなる母材、及びGTA溶接による溶接部を含み、
前記溶接部は、10~100個/mm2以下で存在する2次相を含み、
前記溶接部は、[001]方向の集合組織の最大強度が30以下であり、
前記溶接部の延性-脆性遷移温度(DBTT)が-50℃以下であり、
前記2次相は、チタン(Ti)及び/又はニオビウム(Nb)の炭化物及び/又は窒化物、チタン(Ti)の酸化物及びラーベス相析出物を含むことを特徴とする溶接部の機械的性質が向上したフェライト系ステンレス鋼。 - 重量%で、C:0.005%~0.02%、N:0.005~0.02%、Cr:11.0~13.0%、Ti:0.16~0.3%、Nb:0.1~0.3%、Al:0.005~0.05%、残りは、Fe及び不可避な不純物からなる母材、及びGTA溶接による溶接部を含み、
前記溶接部は、溶接部に10~100個/mm2以下で存在する2次相を含み、
前記溶接部は、[001]方向の集合組織の最大強度が30以下であり、
前記2次相は、チタン(Ti)及び/又はニオビウム(Nb)の炭化物及び/又は窒化物、チタン(Ti)の酸化物及びラーベス相析出物を含むことを特徴とするフェライト系ステンレス鋼管。 - 前記溶接部の延性-脆性遷移温度(DBTT)が-50℃以下であることを特徴とする請求項2に記載のフェライト系ステンレス鋼管。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2018-0115263 | 2018-09-27 | ||
KR1020180115263A KR102123663B1 (ko) | 2018-09-27 | 2018-09-27 | 용접부의 기계적 성질이 향상된 페라이트계 스테인리스강 및 페라이트계 스테인리스 강관 |
PCT/KR2019/010788 WO2020067650A1 (ko) | 2018-09-27 | 2019-08-23 | 용접부의 기계적 성질이 향상된 페라이트계 스테인리스강 및 페라이트계 스테인리스 강관 |
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JP2022501512A JP2022501512A (ja) | 2022-01-06 |
JP7504875B2 true JP7504875B2 (ja) | 2024-06-24 |
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US (1) | US11946125B2 (ja) |
EP (1) | EP3842562A4 (ja) |
JP (1) | JP7504875B2 (ja) |
KR (1) | KR102123663B1 (ja) |
CN (1) | CN112771193B (ja) |
WO (1) | WO2020067650A1 (ja) |
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JP2004243354A (ja) | 2003-02-13 | 2004-09-02 | Jfe Steel Kk | スピニング加工性に優れたフェライト系ステンレス鋼溶接管 |
JP2005105347A (ja) | 2003-09-30 | 2005-04-21 | Sumitomo Metal Ind Ltd | フェライト系ステンレス鋼板およびその製造方法 |
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JPH08120417A (ja) * | 1994-10-26 | 1996-05-14 | Sumitomo Metal Ind Ltd | 耐熱フェライトステンレス鋼 |
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2018
- 2018-09-27 KR KR1020180115263A patent/KR102123663B1/ko active IP Right Grant
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2019
- 2019-08-23 CN CN201980063946.3A patent/CN112771193B/zh active Active
- 2019-08-23 US US17/276,953 patent/US11946125B2/en active Active
- 2019-08-23 WO PCT/KR2019/010788 patent/WO2020067650A1/ko unknown
- 2019-08-23 JP JP2021517346A patent/JP7504875B2/ja active Active
- 2019-08-23 EP EP19865786.8A patent/EP3842562A4/en active Pending
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JP2004243354A (ja) | 2003-02-13 | 2004-09-02 | Jfe Steel Kk | スピニング加工性に優れたフェライト系ステンレス鋼溶接管 |
JP2005105347A (ja) | 2003-09-30 | 2005-04-21 | Sumitomo Metal Ind Ltd | フェライト系ステンレス鋼板およびその製造方法 |
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US11946125B2 (en) | 2024-04-02 |
WO2020067650A1 (ko) | 2020-04-02 |
EP3842562A4 (en) | 2021-09-29 |
KR102123663B1 (ko) | 2020-06-17 |
KR20200035750A (ko) | 2020-04-06 |
JP2022501512A (ja) | 2022-01-06 |
US20220033939A1 (en) | 2022-02-03 |
EP3842562A1 (en) | 2021-06-30 |
CN112771193B (zh) | 2022-07-05 |
CN112771193A (zh) | 2021-05-07 |
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