JP6313468B2 - 改善した溶接性を有する鉄−ニッケル合金 - Google Patents
改善した溶接性を有する鉄−ニッケル合金 Download PDFInfo
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- JP6313468B2 JP6313468B2 JP2016556998A JP2016556998A JP6313468B2 JP 6313468 B2 JP6313468 B2 JP 6313468B2 JP 2016556998 A JP2016556998 A JP 2016556998A JP 2016556998 A JP2016556998 A JP 2016556998A JP 6313468 B2 JP6313468 B2 JP 6313468B2
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- 229910001030 Iron–nickel alloy Inorganic materials 0.000 title description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 106
- 239000000956 alloy Substances 0.000 claims description 106
- 239000011575 calcium Substances 0.000 claims description 51
- 239000011777 magnesium Substances 0.000 claims description 51
- 229910052791 calcium Inorganic materials 0.000 claims description 30
- 229910052749 magnesium Inorganic materials 0.000 claims description 30
- 229910052782 aluminium Inorganic materials 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 24
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 23
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 22
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 22
- 238000003466 welding Methods 0.000 claims description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 21
- 238000007670 refining Methods 0.000 claims description 18
- 239000011265 semifinished product Substances 0.000 claims description 15
- 229910052742 iron Inorganic materials 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 238000005098 hot rolling Methods 0.000 claims description 4
- 238000010622 cold drawing Methods 0.000 claims description 3
- 239000011324 bead Substances 0.000 description 26
- 229910052717 sulfur Inorganic materials 0.000 description 26
- 229910052760 oxygen Inorganic materials 0.000 description 23
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 18
- 229910052710 silicon Inorganic materials 0.000 description 18
- 239000011593 sulfur Substances 0.000 description 18
- 239000010703 silicon Substances 0.000 description 17
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 16
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 16
- 238000005336 cracking Methods 0.000 description 16
- 239000011572 manganese Substances 0.000 description 16
- 239000001301 oxygen Substances 0.000 description 16
- 230000007797 corrosion Effects 0.000 description 11
- 238000005260 corrosion Methods 0.000 description 11
- 229910052799 carbon Inorganic materials 0.000 description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 9
- 229910052748 manganese Inorganic materials 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 229910001374 Invar Inorganic materials 0.000 description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 230000000712 assembly Effects 0.000 description 4
- 238000005097 cold rolling Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 229910000734 martensite Inorganic materials 0.000 description 4
- 238000001953 recrystallisation Methods 0.000 description 4
- 239000002893 slag Substances 0.000 description 4
- 150000003568 thioethers Chemical class 0.000 description 4
- 238000010891 electric arc Methods 0.000 description 3
- 230000001788 irregular Effects 0.000 description 3
- 229910001338 liquidmetal Inorganic materials 0.000 description 3
- 150000001247 metal acetylides Chemical class 0.000 description 3
- 229910052750 molybdenum Inorganic materials 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 239000006104 solid solution Substances 0.000 description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010953 base metal Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000010955 niobium Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 230000001054 cortical effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- VSZWPYCFIRKVQL-UHFFFAOYSA-N selanylidenegallium;selenium Chemical compound [Se].[Se]=[Ga].[Se]=[Ga] VSZWPYCFIRKVQL-UHFFFAOYSA-N 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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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
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
-
- 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
- C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
- C22C38/105—Ferrous alloys, e.g. steel alloys containing cobalt containing Co and Ni
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
- B23K35/0261—Rods, electrodes, wires
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3053—Fe as the principal constituent
- B23K35/3066—Fe as the principal constituent with Ni as next major constituent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/40—Making wire or rods for soldering or welding
-
- 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
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- 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
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- 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
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B2001/221—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length by cold-rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B2001/225—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length by hot-rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
- B21B2003/001—Aluminium or its alloys
Description
35wt%≦Ni≦37wt%、
痕跡量≦Mn≦0.6wt%、
痕跡量≦C≦0.07wt%、
痕跡量≦Si≦0.35wt%、
痕跡量≦Cr≦0.5wt%、
痕跡量≦Co≦0.5wt%、
痕跡量≦P≦0.01wt%、
痕跡量≦Mo<0.5wt%、
痕跡量≦S≦0.0035wt%、
痕跡量≦O≦0.0025wt%、
0.011wt%≦[(3.138×Al+6×Mg+13.418×Ca)−(3.509×O+1.770×S)]≦0.038wt%、
0.0003wt%<Ca≦0.0015wt%、
0.0005wt%<Mg≦0.0035wt%、
0.0020wt%<Al≦0.0085wt%
を含み、残部が鉄及び精錬から生じた残留元素である、鉄をベースとした合金に関連する。
−ケイ素含有率が0.1wt%以上である。
−マンガン含有率が0.15wt%以上であり、炭素含有率が0.02wt%以上であり、ケイ素含有率が0.1wt%以上である。
−炭素含有率が0.05wt%以下である。
−カルシウム含有率が0.0010wt%以下である。
−マグネシウム含有率が0.0020wt%以下である。
−アルミニウム含有率が0.0030wt%と0.0070wt%の間に含まれる。
−合金が前に規定したように精錬される工程、
−前記合金の半製品が成形される工程、
−この半製品が熱間圧延されて、熱間帯板を得る工程、
−その熱間帯板が1つ又は複数のパスで冷間圧延されて、冷間帯板を得る工程
を含む方法に関連する。
−合金が前に規定したように精錬される工程、
−前記合金の半製品が成形される工程、
−この半製品が熱間圧延されて、初期ワイヤを製造する工程
−その初期ワイヤが冷間引抜されて、溶接ワイヤを得る工程
を含む溶接ワイヤを製造するための方法に関連する。
35wt%≦Ni≦37wt%、
0.15wt%≦Mn≦0.6wt%、
0.02wt%≦C≦0.07wt%、
0.1wt%≦Si≦0.35wt%、
痕跡量≦Cr≦0.5wt%、
痕跡量≦Co≦0.5wt%、
痕跡量≦P≦0.01wt%、
痕跡量≦Mo<0.5wt%、
痕跡量≦S≦0.0035wt%、
痕跡量≦O≦0.0025wt%、
0.011wt%≦[(3.138×Al+6×Mg+13.418×Ca)−(3.509×O+1.770×S)]≦0.038wt%、
0.0003wt%<Ca≦0.0015wt%、
0.0005wt%<Mg≦0.0035wt%、
0.0020wt%<Al≦0.0085wt%
を含み、残部が鉄及び精錬から生じた残留元素である、鉄をベースとした合金の使用に関連する。
35wt%≦Ni≦37wt%、
痕跡量≦Mn≦0.6wt%、
痕跡量≦C≦0.07wt%、
痕跡量≦Si≦0.35wt%、
痕跡量≦Mo<0.5wt%、
痕跡量≦Co≦0.5wt%、
痕跡量≦Cr≦0.5wt%、
痕跡量≦P≦0.01wt%、
痕跡量≦S≦0.0035wt%、
痕跡量≦O≦0.0025wt%、
0.011wt%≦[(3.138×Al+6×Mg+13.418×Ca)−(3.509×O+1.770×S)]≦0.038wt%、
0.0003wt%<Ca≦0.0015wt%、
0.0005wt%<Mg≦0.0035wt%、
0.0020wt%<Al≦0.0085wt%
を含み、残部が鉄及び精錬から生じた残留元素である鉄系合金である。
(a1)カルシウム含有率が0.0015%以下、
(b1)マグネシウム含有率が0.0035%以下、
(c1)アルミニウム含有率が0.0085%以下
であり、さらに、合金中のアルミニウム、マグネシウム、カルシウム、酸素、及び硫黄の含有率が以下の関係
[(3.138×Al+6×Mg+13.418×Ca)−(3.509×O+1.770×S)]≦0.038%(d1)
を観測する場合に、本発明に係る合金で作られた部品で作られた溶接ビードが規則的になることを発見した。
−カルシウム含有率が0.0010wt%以下であり、及び/又は
−マグネシウム含有率が0.0020wt%以下であり、及び/又は
−アルミニウム含有率が0.0070wt%以下である。
(a2)カルシウム含有率(Ca)が0.0003wt%超、
(b2)マグネシウム含有率(Mg)が0.0005wt%超、
(c2)アルミニウム含有率(Al)が0.0020wt%超
であり、さらに、合金中のアルミニウム、マグネシウム、カルシウム、硫黄、及び酸素の総含有率が以下の関係、
[(3.138×Al+6×Mg+13.418×Ca)−(3.509×O+1.770×S)]≧0.011%(d2)
を観測する場合に、得られた合金が熱間割れへの良好な耐性を有することに気付いた。
0.15%≦Mn≦0.6%、
0.02%≦C≦0.07%、
0.1%≦Si≦0.35%を含む。
規則性=100×(Lmax−Lmin)/Lmax(1)、
式中、Lminは溶接ビードの最小測定幅に相当し、Lmaxは溶接ビードの最大測定幅に相当する。
−試験終了時において、10mm+/−0.5mm以下の割れの全長を有するプレートを、熱間割れに対して良好な耐性を有するとみなし、一方、
−10mm+/−0.5mm超の割れの全長を有するプレートを、熱間割れに対して不十分な耐性を有するとみなした。
本発明の実施形態としては、以下の実施形態を挙げることができる。
(付記1)
35質量%≦Ni≦37質量%、
痕跡量≦Mn≦0.6質量%、
痕跡量≦C≦0.07質量%、
痕跡量≦Si≦0.35質量%、
痕跡量≦Cr≦0.5質量%、
痕跡量≦Co≦0.5質量%、
痕跡量≦P≦0.01質量%、
痕跡量≦Mo<0.5質量%、
痕跡量≦S≦0.0035質量%、
痕跡量≦O≦0.0025質量%、
0.011質量%≦[(3.138×Al+6×Mg+13.418×Ca)−(3.509×O+1.770×S)]≦0.038質量%、
0.0003質量%<Ca≦0.0015質量%、
0.0005質量%<Mg≦0.0035質量%、
0.0020質量%<Al≦0.0085質量%
を含み、残部が鉄及び精錬から生じた残留元素である、鉄系合金。
(付記2)
Mn≧0.15質量%、
C≧0.02質量%、
Si≧0.1質量%
である、付記1に記載の合金。
(付記3)
前記カルシウム含有率が0.0010質量%以下である、付記1又は2に記載の合金。
(付記4)
前記マグネシウム含有率が0.0020質量%以下である、付記1〜3のいずれか1つに記載の合金。
(付記5)
前記アルミニウム含有率が0.0030質量%と0.0070質量%の間に含まれる、付記1〜4のいずれか1つに記載の合金。
(付記6)
付記1〜5のいずれか1つに記載の合金で帯板を製造する方法であって、以下の一連の工程、
−付記1〜5のいずれか1つに記載の合金を精錬する工程、
−前記合金の半製品を成形する工程、
−この半製品を熱間圧延して熱間帯板を得る工程、
−1つ又は複数のパスで前記熱間帯板を冷間圧延して冷間帯板を得る工程
を含む方法。
(付記7)
付記1〜5のいずれか1つに記載の合金から作られる帯板。
(付記8)
以下の一連の工程、
−付記1〜5のいずれか1つに記載の合金を精錬する工程、
−前記合金の半製品を成形する工程、
−この半製品を熱間圧延して初期ワイヤを製造する工程、
−前記初期ワイヤを冷間引抜して溶接ワイヤを得る工程
を含む、溶接ワイヤを製造する方法。
(付記9)
付記1〜5のいずれか1つに記載の合金から作られる溶接ワイヤ。
(付記10)
液化ガスを受けるためのタンク又は配管を製造するために、付記2の記載と組み合わせた、付記1〜5のいずれか1つに記載の合金の使用。
Claims (14)
- 35質量%≦Ni≦37質量%、
痕跡量≦Mn≦0.6質量%、
痕跡量≦C≦0.07質量%、
痕跡量≦Si≦0.35質量%、
痕跡量≦Cr≦0.5質量%、
痕跡量≦Co≦0.5質量%、
痕跡量≦P≦0.01質量%、
痕跡量≦Mo<0.5質量%、
痕跡量≦S≦0.0035質量%、
痕跡量≦O≦0.0025質量%、
0.011質量%≦[(3.138×Al+6×Mg+13.418×Ca)−(3.509×O+1.770×S)]≦0.038質量%、
0.0003質量%<Ca≦0.0015質量%、
0.0005質量%<Mg≦0.0035質量%、
0.0020質量%<Al≦0.0085質量%
を含み、残部が鉄及び精錬から生じた残留元素である合金から作られる溶接ワイヤ。 - Mn≧0.15質量%、
C≧0.02質量%、
Si≧0.1質量%
である、請求項1に記載の溶接ワイヤ。 - 前記カルシウム含有率が0.0010質量%以下である、請求項1又は2に記載の溶接ワイヤ。
- 前記マグネシウム含有率が0.0020質量%以下である、請求項1〜3のいずれか1項に記載の溶接ワイヤ。
- 前記アルミニウム含有率が0.0030質量%と0.0070質量%の間に含まれる、請求項1〜4のいずれか1項に記載の溶接ワイヤ。
- 以下の一連の工程、
−35質量%≦Ni≦37質量%、
痕跡量≦Mn≦0.6質量%、
痕跡量≦C≦0.07質量%、
痕跡量≦Si≦0.35質量%、
痕跡量≦Cr≦0.5質量%、
痕跡量≦Co≦0.5質量%、
痕跡量≦P≦0.01質量%、
痕跡量≦Mo<0.5質量%、
痕跡量≦S≦0.0035質量%、
痕跡量≦O≦0.0025質量%、
0.011質量%≦[(3.138×Al+6×Mg+13.418×Ca)−(3.509×O+1.770×S)]≦0.038質量%、
0.0003質量%<Ca≦0.0015質量%、
0.0005質量%<Mg≦0.0035質量%、
0.0020質量%<Al≦0.0085質量%
を含み、残部が鉄及び精錬から生じた残留元素である合金を精錬する工程、
−前記合金の半製品を成形する工程、
−この半製品を熱間圧延して初期ワイヤを製造する工程、
−前記初期ワイヤを冷間引抜して溶接ワイヤを得る工程
を含む、溶接ワイヤを製造する方法。 - Mn≧0.15質量%、
C≧0.02質量%、
Si≧0.1質量%
である、請求項6に記載の方法。 - 前記カルシウム含有率が0.0010質量%以下である、請求項6又は7に記載の方法。
- 前記マグネシウム含有率が0.0020質量%以下である、請求項6〜8のいずれか1項に記載の方法。
- 前記アルミニウム含有率が0.0030質量%と0.0070質量%の間に含まれる、請求項6〜9のいずれか1項に記載の方法。
- 液化ガスを受けるためのタンク又は配管を製造するための、
35質量%≦Ni≦37質量%、
0.15質量%≦Mn≦0.6質量%、
0.02質量%≦C≦0.07質量%、
0.1質量%≦Si≦0.35質量%、
痕跡量≦Cr≦0.5質量%、
痕跡量≦Co≦0.5質量%、
痕跡量≦P≦0.01質量%、
痕跡量≦Mo<0.5質量%、
痕跡量≦S≦0.0035質量%、
痕跡量≦O≦0.0025質量%、
0.011質量%≦[(3.138×Al+6×Mg+13.418×Ca)−(3.509×O+1.770×S)]≦0.038質量%、
0.0003質量%<Ca≦0.0015質量%、
0.0005質量%<Mg≦0.0035質量%、
0.0020質量%<Al≦0.0085質量%
を含み、残部が鉄及び精錬から生じた残留元素である合金の使用。 - 前記カルシウム含有率が0.0010質量%以下である、請求項11に記載の使用。
- 前記マグネシウム含有率が0.0020質量%以下である、請求項11又は12に記載の使用。
- 前記アルミニウム含有率が0.0030質量%と0.0070質量%の間に含まれる、請求項11〜13のいずれか1項に記載の使用。
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