JP2018058120A - 高強度非磁性耐腐食材料の熱機械加工 - Google Patents
高強度非磁性耐腐食材料の熱機械加工 Download PDFInfo
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- JP2018058120A JP2018058120A JP2017193331A JP2017193331A JP2018058120A JP 2018058120 A JP2018058120 A JP 2018058120A JP 2017193331 A JP2017193331 A JP 2017193331A JP 2017193331 A JP2017193331 A JP 2017193331A JP 2018058120 A JP2018058120 A JP 2018058120A
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- 239000000463 material Substances 0.000 title description 39
- 238000005260 corrosion Methods 0.000 title description 27
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- 229910001004 magnetic alloy Inorganic materials 0.000 claims description 39
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 38
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 35
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 34
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- 229910052742 iron Inorganic materials 0.000 claims description 19
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- 229910052804 chromium Inorganic materials 0.000 claims description 18
- 239000011651 chromium Substances 0.000 claims description 18
- 229910052750 molybdenum Inorganic materials 0.000 claims description 18
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- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 18
- 239000010937 tungsten Substances 0.000 claims description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 16
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 16
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 16
- 239000011733 molybdenum Substances 0.000 claims description 16
- 229910052710 silicon Inorganic materials 0.000 claims description 16
- 239000010703 silicon Substances 0.000 claims description 16
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 15
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 15
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 15
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 15
- 229910052796 boron Inorganic materials 0.000 claims description 15
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 15
- 239000011574 phosphorus Substances 0.000 claims description 15
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- 229910052684 Cerium Inorganic materials 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- ZMIGMASIKSOYAM-UHFFFAOYSA-N cerium Chemical compound [Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce] ZMIGMASIKSOYAM-UHFFFAOYSA-N 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
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- 229910052746 lanthanum Inorganic materials 0.000 description 4
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- 230000009286 beneficial effect Effects 0.000 description 3
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- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 229910000871 AL-6XN Inorganic materials 0.000 description 2
- 229910001313 Cobalt-iron alloy Inorganic materials 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 2
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- 230000002411 adverse Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
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- 150000001875 compounds Chemical class 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
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Classifications
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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
- C22C38/18—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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
- B21J1/02—Preliminary treatment of metal stock without particular shaping, e.g. salvaging segregated zones, forging or pressing in the rough
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
- B21J1/04—Shaping in the rough solely by forging or pressing
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
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- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
- B21J5/022—Open die forging
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
- B21J5/08—Upsetting
-
- 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
- C21D7/00—Modifying the physical properties of iron or steel by deformation
- C21D7/13—Modifying the physical properties of iron or steel by deformation by hot working
-
- 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
- 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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- 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
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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
- C22C38/002—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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- 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
- 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
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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
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
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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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- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
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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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- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
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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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- C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
-
- 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
- C22C38/50—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
- C22C38/52—Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt
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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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Abstract
【解決手段】非磁性合金ワークピースを加工する方法は、ワークピースを温間加工温度に加熱することと、そのワークピースを開放型プレス鍛造してワークピースの中心領域に所望のひずみを付与することと、そのワークピースをラジアル鍛造してワークピースの表面領域に所望のひずみを付与することとを含む。開放型プレス鍛造ステップおよびラジアル鍛造ステップの後、表面領域に付与されたひずみは、中心領域に付与されたひずみと実質的に等しい。他に、中心領域および表面領域に付与されたひずみは、0.3インチ/インチ〜1インチ/インチの範囲内であり、ワークピースの表面領域のひずみと比較した中心領域のひずみの差は、0.5インチ/インチ以下である。加工された合金鍛造物も開示される。
【選択図】図6
Description
PREN16=%Cr+3.3(%Mo)+16(%N)+1.65(%W)
種々の非限定的な実施形態において、本開示に従う方法によって加工され、鍛造物品に具体化され得る合金は、次の範囲のうちのいずれかのPREN16値を有し得る:最大60、最大58、30超、40超、45超、48超、30〜60、30〜58、30〜50、40〜60、40〜58、40〜50、および48〜51。いかなる特定の理論に束縛されるものではないが、より高いPREN16値は、合金が、例えば、腐食性の高い環境、高温環境、および低温環境のような環境において、十分な耐腐食性を提示する可能性がより高いことを示し得ると考えられる。強力に腐食性の環境は、例えば、化学加工装置、およびドリルストリングが石油およびガスの掘削用途にさらされている下げ孔環境において存在し得る。強力に腐食性の環境は、極端な温度とともに、合金を、例えば、アルカリ化合物、酸性化塩化物溶液、酸性化硫化物溶液、過酸化物、および/またはCO2にさらし得る。
CP=20(%Cr)+0.3(%Ni)+30(%Mo)+5(%W)+10(%Mn)+50(%C)−200(%N)
いかなる特定の理論に束縛されるものではないが、710未満のCP値を有する合金は、溶接中の金属間相からのHAZ(熱影響域)の感受性化の最小化を助ける、有益なオーステナイト安定度を提示すると考えられる。種々の非限定的な実施形態において、本開示に従う方法によって加工され、鍛造物品に具体化され得るオーステナイト系合金は、次の範囲のいずれかでCPを有し得る:最大800、最大750、750未満、最大710、710未満、最大680、および660〜750。
実施例1
[発明の態様]
[1]非磁性合金ワークピースを加工する方法であって、
前記ワークピースを温間加工温度に加熱することと、
前記ワークピースを開放型プレス鍛造して、前記ワークピースの中心領域に所望のひずみを付与することと、
前記ワークピースをラジアル鍛造して、前記ワークピースの表面領域に所望のひずみを付与することと、を含む、方法。
[2]前記開放型プレス鍛造ステップおよび前記ラジアル鍛造ステップの後、前記中心領域に付与された前記ひずみおよび前記表面領域に付与された前記ひずみがそれぞれ、0.3インチ/インチ〜1.0インチ/インチの範囲内であり、
前記中心領域から前記表面領域のひずみの差が、0.5インチ/インチ以下である、[1]に記載の方法。
[3]前記開放型プレス鍛造ステップおよび前記ラジアル鍛造ステップの後、前記中心領域に付与された前記ひずみおよび前記表面領域に付与された前記ひずみがそれぞれ、0.3インチ/インチ〜0.8インチ/インチの範囲内である、[1]に記載の方法。
[4]前記開放型プレス鍛造ステップおよび前記ラジアル鍛造ステップの後、前記表面領域に付与された前記ひずみが、前記中心領域に付与された前記ひずみと実質的に等しい、[1]に記載の方法。
[5]前記開放型プレス鍛造ステップが、前記ラジアル鍛造ステップに先行する、[1]に記載の方法。
[6]前記ラジアル鍛造ステップが、前記開放型プレス鍛造ステップに先行する、[1]に記載の方法。
[7]前記温間加工温度が、前記非磁性合金の初期溶解温度の3分の1の温度から前記非磁性合金の初期溶解温度の3分の2の温度までの範囲内である、[1]に記載の方法。
[8]前記温間加工温度が、再結晶化(動的または静的)が前記非磁性合金中に生じる最高温度までの任意の温度を含む、[1]に記載の方法。
[9]前記非磁性合金が、非磁性ステンレス鋼合金、ニッケル合金、コバルト合金、および鉄合金のうちの1つを含む、[1]に記載の方法。
[10]前記非磁性合金が、非磁性オーステナイト系ステンレス鋼合金を含む、[1]に記載の方法。
[11]前記温間加工温度が、950°F〜1150°Fである、[10]に記載の方法。
[12]前記ワークピースを前記温間加工温度に加熱する前に、前記ワークピースを焼鈍することをさらに含む、[1]に記載の方法。
[13]前記ワークピースが、非磁性ステンレス鋼合金を含み、前記ワークピースを焼鈍することが、前記ワークピースを1850°F〜2300°Fで1分〜10時間加熱することを含む、[12]に記載の方法。
[14]前記ワークピースを前記温間加工温度に前記加熱することが、前記ワークピースを焼鈍温度から前記温間加工温度に冷却させることをさらに含む、[12]に記載の方法。
[15]前記ワークピースが、円形断面を含む、[1]に記載の方法。
[16]前記ワークピースの前記円形断面が、5.25インチより大きい直径を有する、[15]に記載の方法。
[17]前記ワークピースの前記円形断面が、7.25インチ以上の直径を有する、[15]に記載の方法。
[18]前記ワークピースの前記円形断面が、7.25インチ〜12.0インチの範囲の直径を有する、[15]に記載の方法。
[19]非磁性オーステナイト系ステンレス鋼合金ワークピースを加工する方法であって、
前記ワークピースを950°F〜1150°Fの範囲の温間加工温度に加熱することと、
前記ワークピースを開放型プレス鍛造して、前記ワークピースの中心領域に0.3インチ/インチ〜1.0インチ/インチの最終ひずみを付与することと、
前記ワークピースをラジアル鍛造して、前記ワークピースの表面領域に0.3インチ/インチ〜1.0インチ/インチの最終ひずみを付与することと、を含み、
前記中心領域から前記表面領域のひずみの差が、0.5インチ/インチ以下である、方法。
[20]前記ワークピースを開放型プレス鍛造することが、前記ワークピースの中心領域に0.3インチ/インチ〜0.8インチ/インチの最終ひずみを付与し、
前記ワークピースをラジアル鍛造することが、前記ワークピースの表面領域に0.3インチ/インチ〜0.8インチ/インチの最終ひずみを付与する、[19]に記載の方法。
[21]前記開放型プレス鍛造ステップが、前記ラジアル鍛造ステップに先行する、[19]に記載の方法。
[22]前記ラジアル鍛造ステップが、前記開放型プレス鍛造ステップに先行する、[19]に記載の方法。
[23]前記ワークピースを前記温間加工温度に加熱する前に、前記ワークピースを焼鈍することをさらに含む、[19]に記載の方法。
[24]前記ワークピースを焼鈍することが、前記ワークピースを1850°F〜2300°Fで1分〜10時間加熱することを含む、[23]に記載の方法。
[25]前記ワークピースを前記温間加工温度に前記加熱することが、前記ワークピースを前記焼鈍温度から前記温間加工温度に冷却させることをさらに含む、[23]に記載の方法。
[26]前記ワークピースが、円形断面を含む、[19]に記載の方法。
[27]前記ワークピースの前記円形断面が、5.25インチより大きい直径を有する、[26]に記載の方法。
[28]前記ワークピースの前記円形断面が、7.25インチ以上の直径を有する、[26]に記載の方法。
[29]前記ワークピースの前記円形断面が、7.25インチ〜12.0インチの範囲の直径を有する、[26]に記載の方法。
[30]非磁性合金鍛造物であって、
5.25インチより大きい直径を有する円形断面と、
前記鍛造物の断面にわたって実質的に均一な少なくとも1つの機械的特性と、を備える、非磁性合金鍛造物。
[31]前記非磁性合金鍛造物が、非磁性ステンレス鋼合金、ニッケル合金、コバルト合金、および鉄合金のうちの1つを含む、[30]に記載の非磁性合金鍛造物。
[32]前記非磁性合金鍛造物が、非磁性オーステナイト系ステンレス鋼合金を含む、[30]に記載の非磁性合金鍛造物。
[33]前記実質的に均一な機械的特性が、最大引張強度、降伏強度、伸び率、および面積減少率のうちの1つである、[30]に記載の非磁性合金鍛造物。
[34]前記円形断面の直径が、7.25インチ以上である、[30]に記載の非磁性合金鍛造物。
[35]前記円形断面の前記直径が、7.25インチ〜12インチの範囲内である、[34]に記載の非磁性合金鍛造物。
Claims (31)
- 非磁性合金鍛造物であって、
5.25インチより大きい直径を有する円形断面、および
前記鍛造物の断面全体にわたって実質的に均一な少なくとも1つの機械的特性、を備える、非磁性合金鍛造物。 - 前記非磁性合金鍛造物が、非磁性ステンレス鋼合金、ニッケル合金、コバルト合金、および鉄合金のうちの1つを含む、請求項1に記載の非磁性合金鍛造物。
- 前記非磁性合金鍛造物が、非磁性オーステナイト系ステンレス鋼合金を含む、請求項1に記載の非磁性合金鍛造物。
- 前記機械的特性が、最大引張強度、降伏強度、伸び率、および面積減少率のうちの少なくともの1つである、請求項1に記載の非磁性合金鍛造物。
- 前記円形断面の前記直径が、少なくとも7.25インチである、請求項1に記載の非磁性合金鍛造物。
- 前記円形断面の前記直径が、7.25インチ〜12インチの範囲内である、請求項1に記載の非磁性合金鍛造物。
- 前記合金鍛造物が、円筒形の合金鍛造物である、請求項1に記載の非磁性合金鍛造物。
- 前記合金が、UNS N08367において提示される組成を有するオーステナイト系ステンレス鋼合金である、請求項1に記載の非磁性合金鍛造物。
- 前記合金が、ATI Datalloy 2(登録商標)オーステナイト系ステンレス鋼である、請求項1に記載の非磁性合金鍛造物。
- 前記合金の組成式が、重量%で、0.03の炭素、0.30のケイ素、15.1のマンガン、15.3のクロム、2.1のモリブデン、2.3のニッケル、0.4の窒素、不可避不純物、および残余鉄を含む、請求項1に記載の非磁性合金鍛造物。
- 前記合金が、クロム、コバルト、銅、鉄、マンガン、モリブデン、ニッケル、炭素、窒素、タングステン、不可避不純物、および、任意に、微量元素を含むオーステナイト系合金である、請求項1に記載の非磁性合金鍛造物。
- 前記合金が、アルミニウム、ケイ素、チタン、ホウ素、リン、硫黄、ニオブ、タンタル、ルテニウム、バナジウム、およびジルコニウムのうちの少なくとも1つをさらに含む、請求項11に記載の非磁性合金鍛造物。
- 前記合金が、重量%で、最大0.2の炭素、最大20のマンガン、0.1〜1.0のケイ素、14.0〜28.0のクロム、15.0〜38.0のニッケル、2.0〜9.0のモリブデン、0.1〜3.0の銅、0.08〜0.9の窒素、0.1〜5.0のタングステン、0.5〜5.0のコバルト、最大1.0のチタン、最大0.05のホウ素、最大0.05のリン、最大0.05の硫黄、鉄、および不可避不純物を含む、請求項1に記載の非磁性合金鍛造物。
- 前記合金が、重量%で、最大0.2の炭素、最大20のマンガン、0.1〜1.0のケイ素、14.0〜28.0のクロム、15.0〜38.0のニッケル、2.0〜9.0のモリブデン、0.1〜3.0の銅、0.08〜0.9の窒素、0.1〜5.0のタングステン、0.5〜5.0のコバルト、最大1.0のチタン、最大0.05のホウ素、最大0.05のリン、最大0.05の硫黄、鉄、および不可避不純物からなる、請求項1に記載の非磁性合金鍛造物。
- 前記合金が、重量%で、最大0.05の炭素、1.0〜9.0のマンガン、0.1〜1.0のケイ素、18.0〜26.0のクロム、19.0〜37.0のニッケル、3.0〜7.0のモリブデン、0.4〜2.5の銅、0.1〜0.55の窒素、0.2〜3.0のタングステン、0.8〜3.5のコバルト、最大0.6のチタン、0.3以下の複合重量%のコロンビウムおよびタンタル、最大0.2のバナジウム、最大0.1のアルミニウム、最大0.05のホウ素、最大0.05のリン、最大0.05の硫黄、鉄、および不可避不純物を含む、請求項1に記載の非磁性合金鍛造物。
- 前記合金が、重量%で、最大0.05の炭素、1.0〜9.0のマンガン、0.1〜1.0のケイ素、18.0〜26.0のクロム、19.0〜37.0のニッケル、3.0〜7.0のモリブデン、0.4〜2.5の銅、0.1〜0.55の窒素、0.2〜3.0のタングステン、0.8〜3.5のコバルト、最大0.6のチタン、0.3以下の複合重量%のコロンビウムおよびタンタル、最大0.2のバナジウム、最大0.1のアルミニウム、最大0.05のホウ素、最大0.05のリン、最大0.05の硫黄、鉄、および不可避不純物からなる、請求項1に記載の非磁性合金鍛造物。
- 前記合金が、重量%で、最大0.05の炭素、2.0〜8.0のマンガン、0.1〜0.5のケイ素、19.0〜25.0のクロム、20.0〜35.0のニッケル、3.0〜6.5のモリブデン、0.5〜2.0の銅、0.2〜0.5の窒素、0.3〜2.5のタングステン、1.0〜3.5のコバルト、最大0.6のチタン、0.3以下の複合重量%のコロンビウムおよびタンタル、最大0.2のバナジウム、最大0.1のアルミニウム、最大0.05のホウ素、最大0.05のリン、最大0.05の硫黄、鉄、および不可避不純物を含む、請求項1に記載の非磁性合金鍛造物。
- 前記合金が、重量%で、最大0.05の炭素、2.0〜8.0のマンガン、0.1〜0.5のケイ素、19.0〜25.0のクロム、20.0〜35.0のニッケル、3.0〜6.5のモリブデン、0.5〜2.0の銅、0.2〜0.5の窒素、0.3〜2.5のタングステン、1.0〜3.5のコバルト、最大0.6のチタン、0.3以下の複合重量%のコロンビウムおよびタンタル、最大0.2のバナジウム、最大0.1のアルミニウム、最大0.05のホウ素、最大0.05のリン、最大0.05の硫黄、鉄、および不可避不純物からなる、請求項1に記載の非磁性合金鍛造物。
- 前記合金が、1.01未満の透磁率値(μr)を有する、請求項1に記載の非磁性合金鍛造物。
- 前記合金が、1.005未満の透磁率値(μr)を有する、請求項1に記載の非磁性合金鍛造物。
- 前記合金が、1.001未満の透磁率値(μr)を有する、請求項1に記載の非磁性合金鍛造物。
- 前記合金が、フェライトを含まない、請求項1に記載の非磁性合金鍛造物。
- 円筒形の非磁性合金鍛造物であって、
5.25インチより大きい直径を有する円形断面を備え、
前記鍛造物の断面全体にわたって、最大引張強度、降伏強度、伸び率、および面積減少率のうちの少なくとも1つが均一であり、および
前記非磁性合金が、ステンレス鋼合金、ニッケル合金、コバルト合金、および鉄合金から選択される、円筒形の非磁性合金鍛造物。 - 前記非磁性合金が、非磁性オーステナイト系ステンレス鋼合金である、請求項23に記載の円筒形の非磁性合金鍛造物。
- 前記合金が、1.01未満の透磁率値(μr)を有する、請求項24に記載の円筒形の非磁性合金鍛造物。
- 前記合金が、1.005未満の透磁率値(μr)を有する、請求項24に記載の円筒形の非磁性合金鍛造物。
- 前記合金が、1.001未満の透磁率値(μr)を有する、請求項24に記載の円筒形の非磁性合金鍛造物。
- 前記合金が、フェライトを含まない、請求項24に記載の円筒形の非磁性合金鍛造物。
- 前記合金が、UNS N08367において提示される組成を有するオーステナイト系ステンレス鋼合金である、請求項23に記載の円筒形の非磁性合金鍛造物。
- 前記合金が、重量%で、最大0.2の炭素、最大20のマンガン、0.1〜1.0のケイ素、14.0〜28.0のクロム、15.0〜38.0のニッケル、2.0〜9.0のモリブデン、0.1〜3.0の銅、0.08〜0.9の窒素、0.1〜5.0のタングステン、0.5〜5.0のコバルト、最大1.0のチタン、最大0.05のホウ素、最大0.05のリン、最大0.05の硫黄、鉄、および不可避不純物を含む、請求項23に記載の円筒形の非磁性合金鍛造物。
- 前記合金が、重量%で、最大0.2の炭素、最大20のマンガン、0.1〜1.0のケイ素、14.0〜28.0のクロム、15.0〜38.0のニッケル、2.0〜9.0のモリブデン、0.1〜3.0の銅、0.08〜0.9の窒素、0.1〜5.0のタングステン、0.5〜5.0のコバルト、最大1.0のチタン、最大0.05のホウ素、最大0.05のリン、最大0.05の硫黄、鉄、および不可避不純物からなる、請求項23に記載の円筒形の非磁性合金鍛造物。
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JP6517933B2 (ja) | 2015-06-24 | 2019-05-22 | 株式会社日立製作所 | 検査システム、検査装置、及び検査方法 |
US10502252B2 (en) | 2015-11-23 | 2019-12-10 | Ati Properties Llc | Processing of alpha-beta titanium alloys |
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(社)日本熱処理技術協会, 熱処理技術入門, JPN6018050908, 10 January 1974 (1974-01-10), JP, pages 150ページ * |
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