JP2019534381A - 高伸長プレス硬化鋼及びその製造 - Google Patents
高伸長プレス硬化鋼及びその製造 Download PDFInfo
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- 229910000760 Hardened steel Inorganic materials 0.000 title abstract description 22
- 238000004519 manufacturing process Methods 0.000 title description 6
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 73
- 239000010959 steel Substances 0.000 claims abstract description 73
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- 238000005242 forging Methods 0.000 claims description 25
- 229910052782 aluminium Inorganic materials 0.000 claims description 14
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 14
- 239000011651 chromium Substances 0.000 claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 11
- 229910052799 carbon Inorganic materials 0.000 claims description 11
- 229910052804 chromium Inorganic materials 0.000 claims description 11
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 10
- 238000000576 coating method Methods 0.000 claims description 10
- 229910052750 molybdenum Inorganic materials 0.000 claims description 10
- 239000011733 molybdenum Substances 0.000 claims description 10
- 229910052710 silicon Inorganic materials 0.000 claims description 10
- 239000010703 silicon Substances 0.000 claims description 10
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 7
- 229910052759 nickel Inorganic materials 0.000 claims description 7
- 239000010936 titanium Substances 0.000 claims description 7
- 229910052719 titanium Inorganic materials 0.000 claims description 7
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 5
- 229910052796 boron Inorganic materials 0.000 claims description 5
- 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 5
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 4
- 239000011701 zinc Substances 0.000 claims description 4
- 229910052725 zinc Inorganic materials 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 abstract description 61
- 239000000956 alloy Substances 0.000 abstract description 61
- 229910001566 austenite Inorganic materials 0.000 abstract description 31
- 239000000463 material Substances 0.000 abstract description 25
- 229910000734 martensite Inorganic materials 0.000 abstract description 19
- 238000000034 method Methods 0.000 abstract description 16
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- 238000000137 annealing Methods 0.000 description 30
- 229910052748 manganese Inorganic materials 0.000 description 29
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 25
- 229910052751 metal Inorganic materials 0.000 description 12
- 239000002184 metal Substances 0.000 description 12
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 10
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 9
- 239000000203 mixture Substances 0.000 description 9
- 229910000859 α-Fe Inorganic materials 0.000 description 9
- 238000012545 processing Methods 0.000 description 8
- 239000006104 solid solution Substances 0.000 description 7
- 229910000851 Alloy steel Inorganic materials 0.000 description 6
- 229910000914 Mn alloy Inorganic materials 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 6
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- 238000001887 electron backscatter diffraction Methods 0.000 description 5
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- 230000008901 benefit Effects 0.000 description 3
- 230000000171 quenching effect Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000007792 addition Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000007572 expansion measurement Methods 0.000 description 2
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- 230000008018 melting Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 1
- FFBHFFJDDLITSX-UHFFFAOYSA-N benzyl N-[2-hydroxy-4-(3-oxomorpholin-4-yl)phenyl]carbamate Chemical compound OC1=C(NC(=O)OCC2=CC=CC=C2)C=CC(=C1)N1CCOCC1=O FFBHFFJDDLITSX-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
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- 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
- 238000005098 hot rolling Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
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Abstract
Description
・完全なるオーステナイト化に達するために温度を低くする。完全なるオーステナイト化は、より高いマンガン濃度で600℃までの低い温度で達成され得る。
・変態区間的に材料を焼鈍する可能性がある。
・最終の熱間鍛造部分の望ましい機械的性質、すなわち、打型の状態で急冷された微細構造における残留オーステナイトを達成するために微細構造を調整することが可能となる。
i.熱間鍛造打型における成形及び急冷前の鋼板材料の変態区間焼鈍(処理過程1)
ii.熱間鍛造打型における成形及び急冷前の鋼板材料の完全なるオーステナイト化(処理過程2)
熱間鍛造処理中、鋼板材料は、以下でさらに説明するように、合金組成及び望ましい性質を提供するだろう時間に適する変態区間温度(すなわち、A1及びA3の間の温度)で加熱される。変態区間温度は、合金の組成物により、特にマンガン、アルミニウム、シリコン、クロミウム、モリブデン、及び炭素の成分による。変態区間温度の範囲は、約600〜850℃に限定されないが、それを含むものである。
材料は、合金組成物に適するオーステナイト化温度(すなわち、A3より高い温度)で熱せられるべきである。オーステナイト化温度は、合金の組成物により、特にマンガン、アルミニウム、シリコン、クロミウム、モリブデン、及び炭素の成分によって決定されるだろう。合金の組成物によって、A3温度は、約600℃より低くても良い。
A1(%Mn)=−17.39(%Mn)+761.63 (1)
A3(%Mn)=−28.55(%Mn)+871.25 (2)
(a)0.1%〜0.5%、好ましくは0.1%〜0.35%の炭素、
(b)1.0%〜10.0%、好ましくは1.0%〜6.0%のマンガン、及び
(c)0.02%〜2.0%、好ましくは0.02%〜1.0%のシリコンの前記鋼の全質量%を有し、
前記鋼は、熱間鍛造打型で形成及び急冷する前に変態区間的に焼鈍され、または実質的に完全にオーステナイト化される。
この出願の発明に関連する先行技術文献情報としては、以下のものがある(国際出願日以降国際段階で引用された文献及び他国に国内移行した際に引用された文献を含む)。
(先行技術文献)
(特許文献)
(特許文献1) 国際公開第2016/063467号
(特許文献2) 欧州特許出願公開第2719788号明細書
(特許文献3) 欧州特許出願公開第2824195号明細書
(特許文献4) 欧州特許出願公開第2824196号明細書
Claims (11)
- プレス硬化性鋼であって、
(a)0.1%〜0.5%、好ましくは0.1%〜0.35の炭素、
(b)1.0%〜10.0%、好ましくは1.0%〜6.0%のマンガン、及び
(c)0.02%〜2.0%、好ましくは0.02%〜1.0%のシリコンの前記鋼の全質量%を有し、
前記鋼は、熱間鍛造打型で形成及び急冷する前に変態区間的に焼鈍され、または実質的に完全にオーステナイト化されるプレス硬化性鋼。 - 請求項1記載のプレス硬化性鋼であって、前記プレス硬化性鋼は、0.0%〜2.0%、好ましくは0.02%〜1.0%のアルミニウムをさらに有するプレス硬化性鋼。
- 請求項1または2のいずれか1項記載のプレス硬化性鋼であって、前記プレス硬化性鋼は、0.0%〜0.045%のチタンをさらに有するプレス硬化性鋼。
- 前述の請求項のいずれか1項記載のプレス硬化性鋼であって、前記プレス硬化性鋼は、0.035質量%以下のチタンを有するプレス硬化性鋼。
- 前述の請求項のいずれか1項記載のプレス硬化性鋼であって、前記プレス硬化性鋼は、0%〜4.0%、好ましくは0%〜1.0%のモリブデンをさらに有するプレス硬化性鋼。
- 前述の請求項のいずれか1項記載のプレス硬化性鋼であって、前記プレス硬化性鋼は、0%〜6.0%、好ましくは0%〜2.0%のクロミウムをさらに有するプレス硬化性鋼。
- 前述の請求項のいずれか1項記載のプレス硬化性鋼であって、前記プレス硬化性鋼は、0.0%〜1.0%、好ましくは0.02%〜0.5%のNiをさらに有するプレス硬化性鋼。
- 前述の請求項のいずれか1項記載のプレス硬化性鋼であって、前記プレス硬化性鋼は、0%〜0.005%のホウ素をさらに有するプレス硬化性鋼。
- 前述の請求項のいずれか1項記載のプレス硬化性鋼であって、前記プレス硬化性鋼は、プレス硬化または熱間鍛造後に、少なくとも1100MPaの最大抗張力及び少なくとも8%の残留延性を有するプレス硬化性鋼。
- 前述の請求項のいずれか1項記載のプレス硬化性鋼であって、前記プレス硬化性鋼は、プレス硬化または熱間鍛造後に、少なくとも1200MPaの最大抗張力及び少なくとも12%の残留延性を有するプレス硬化性鋼。
- 前述の請求項のいずれか1項記載のプレス硬化性鋼であって、前記プレス硬化性鋼は、アルミニウム系のコーティングまたは亜鉛系のコーティングを含むプレス硬化性鋼。
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WO2018160462A1 (en) * | 2017-03-01 | 2018-09-07 | Ak Steel Properties, Inc. | Press hardened steel with extremely high strength |
CN114703427A (zh) | 2018-04-28 | 2022-07-05 | 育材堂(苏州)材料科技有限公司 | 热冲压成形用钢材、热冲压成形工艺及热冲压成形构件 |
CN111197145B (zh) * | 2018-11-16 | 2021-12-28 | 通用汽车环球科技运作有限责任公司 | 钢合金工件和用于制造压制硬化钢合金部件的方法 |
CN113025876A (zh) | 2019-12-24 | 2021-06-25 | 通用汽车环球科技运作有限责任公司 | 高性能压制硬化钢组件 |
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BR112019006133A2 (pt) | 2019-06-18 |
AU2017339465A1 (en) | 2019-04-11 |
WO2018067554A8 (en) | 2019-02-28 |
TW201827621A (zh) | 2018-08-01 |
PH12019500708A1 (en) | 2019-12-11 |
KR20190065351A (ko) | 2019-06-11 |
WO2018067554A1 (en) | 2018-04-12 |
EP3532649A1 (en) | 2019-09-04 |
US20200165694A1 (en) | 2020-05-28 |
CA3038322A1 (en) | 2018-04-12 |
CO2019002999A2 (es) | 2019-04-12 |
MX2019003841A (es) | 2019-09-26 |
TWI649431B (zh) | 2019-02-01 |
JP2021176991A (ja) | 2021-11-11 |
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CN109804098A (zh) | 2019-05-24 |
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