JP5898772B2 - レーザー熱処理を用いた異種強度を有する鋼製品の製造方法及びこれに用いられる熱処理硬化鋼 - Google Patents
レーザー熱処理を用いた異種強度を有する鋼製品の製造方法及びこれに用いられる熱処理硬化鋼 Download PDFInfo
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- 238000010438 heat treatment Methods 0.000 title claims description 41
- 229910000831 Steel Inorganic materials 0.000 title claims description 34
- 239000010959 steel Substances 0.000 title claims description 34
- 238000004519 manufacturing process Methods 0.000 title claims description 22
- 229910000760 Hardened steel Inorganic materials 0.000 title description 9
- 239000000463 material Substances 0.000 claims description 23
- 238000007747 plating Methods 0.000 claims description 18
- 239000010410 layer Substances 0.000 claims description 17
- 239000011572 manganese Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 15
- 239000011651 chromium Substances 0.000 claims description 14
- 239000010936 titanium Substances 0.000 claims description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- 229910052799 carbon Inorganic materials 0.000 claims description 11
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 10
- 229910052796 boron Inorganic materials 0.000 claims description 10
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 9
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 9
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 9
- 229910052748 manganese Inorganic materials 0.000 claims description 9
- 229910052710 silicon Inorganic materials 0.000 claims description 9
- 239000010703 silicon Substances 0.000 claims description 9
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- 229910052804 chromium Inorganic materials 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 8
- 229910052719 titanium Inorganic materials 0.000 claims description 8
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 7
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 7
- 229910052698 phosphorus Inorganic materials 0.000 claims description 7
- 239000011574 phosphorus Substances 0.000 claims description 7
- 229910052717 sulfur Inorganic materials 0.000 claims description 7
- 239000011593 sulfur Substances 0.000 claims description 7
- 229910018125 Al-Si Inorganic materials 0.000 claims description 3
- 229910018520 Al—Si Inorganic materials 0.000 claims description 3
- 229910007570 Zn-Al Inorganic materials 0.000 claims description 3
- 229910007567 Zn-Ni Inorganic materials 0.000 claims description 3
- 229910007614 Zn—Ni Inorganic materials 0.000 claims description 3
- 239000011247 coating layer Substances 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 230000001678 irradiating effect Effects 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 230000008569 process Effects 0.000 description 7
- 238000000465 moulding Methods 0.000 description 6
- 229910001566 austenite Inorganic materials 0.000 description 5
- 230000006872 improvement Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000005728 strengthening Methods 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 3
- 239000013585 weight reducing agent Substances 0.000 description 3
- 238000005098 hot rolling Methods 0.000 description 2
- 239000012779 reinforcing material Substances 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 229910000967 As alloy Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005261 decarburization Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
-
- 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
- C21D1/06—Surface hardening
- C21D1/09—Surface hardening by direct application of electrical or wave energy; by particle radiation
-
- 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
-
- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
-
- 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
- C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
-
- 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
- C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
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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
- C21D2221/00—Treating localised areas of an article
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12674—Ge- or Si-base component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
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- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12736—Al-base component
- Y10T428/1275—Next to Group VIII or IB metal-base component
- Y10T428/12757—Fe
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
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- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12785—Group IIB metal-base component
- Y10T428/12792—Zn-base component
- Y10T428/12799—Next to Fe-base component [e.g., galvanized]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
- Y10T428/12937—Co- or Ni-base component next to Fe-base component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
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- Y10T428/31678—Of metal
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- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Heat Treatment Of Articles (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Description
素材用意段階では、重量%で、炭素(C):0.1%ないし0.5%、シリコン(Si):0.1%ないし0.5%、マンガン(Mn):0.5%ないし3.0%、リン(P):0.1%以下、硫黄(S):0.05%以下、クロム(Cr):0.01%ないし1.0
%、アルミニウム(Al):0.1%以下、チタン(Ti):0.2%以下、ボロン(B):0.0005%ないし0.08%及び残りのFeと不可避な不純物からなる素材を用意する。
炭素(C)は、鋼の強度確保のために添加する。また、炭素は、オーステナイト相に濃化される量に応じてオーステナイト相を安定化させる役割をする。
シリコン(Si)は、脱酸剤として作用し、固溶強化によって鋼の強度向上に寄与する。
マンガン(Mn)は、オーステナイト安定化を通して強度向上に寄与する。
。その一方、マンガンの添加量が3.0重量%を超える場合、溶接性が低下し、靭性が劣化するという問題がある。
リン(P)は、強度向上に寄与するが、過多に含有される場合、偏析によって鋼材質を劣化させ、溶接性を悪化させ得る。そこで、本発明では、リンの含量を鋼全体重量の0.1重量%以下に制限した。
クロム(Cr)は、フェライト結晶粒を安定化して延伸率を向上させ、オーステナイト相内の炭素濃化量を増進してオーステナイト相を安定化させることによって、強度向上に寄与する。
アルミニウム(Al)は、水素脆性を防止する役割をし、軟性及びめっき性の向上に有効である。ただし、アルミニウムが0.1重量%を超えて添加される場合、過多な介在物を形成し、鋼の軟性及び靭性を阻害し得る。
チタン(Ti)は、炭窒化物形成元素であって、強度向上に寄与する。ただし、チタンの添加量が0.2重量%を超える場合、靭性の低下をもたらし得る。
ボロン(B)は、強力な焼入性元素であって、0.0005重量%以上だけ添加されても熱処理後の鋼の超高強度化に寄与する。
次に、成形体製造段階(S120)では、前記素材を予め定められた形状に成形することによって成形体を製造する。
次に、レーザー熱処理段階(S120)では、成形体で高強度が要求される部分(以下、高強度部という)にレーザー熱処理を実施し、前記高強度部を局部的に強化させる。
下記の表1に記載した組成及び下記の表2に記載した温度で焼鈍処理された冷延試片を用意した。その後、試片1ないし10に対してレーザー熱処理を実施した。レーザー熱処理は、ダイオードレーザー装置(ユーロビジョン製造)を用いて各試片の中央部の温度を
950℃にした後、50℃/secの平均冷却速度で100℃まで冷却した。
Claims (3)
- (a)重量%で、炭素(C):0.1%ないし0.5%、シリコン(Si):0.1%ないし0.5%、マンガン(Mn):0.5%ないし3.0%、リン(P):0.1%以下、硫黄(S):0.05%以下、クロム(Cr):0.01%ないし1.0%、アルミニウム(Al):0.1%以下、チタン(Ti):0.2%以下、ボロン(B):0.0005%ないし0.08%及び残りのFeと不可避な不純物からなる素材を用意する段階;(b)前記素材を予め定められた形状に成形することによって成形体を製造する段階;及び
(c)前記成形体で高強度が要求される部分(以下、高強度部という)にレーザー熱処理を実施し、前記高強度部を局部的に強化させる段階;を含む、鋼製品の製造方法であって、
前記(a)段階において、前記素材は、
引張強度400MPaないし990MPa及び延伸率10%ないし40%を有し、
前記(c)段階において、前記レーザー熱処理は、
前記高強度部にレーザーを照射し、前記高強度部をAc3温度以上に加熱した後、5℃/secないし300℃/secの冷却速度でMs温度以下まで冷却する、方法。 - 前記(a)段階において、前記素材は、
Alめっき層、Al―Siめっき層、Zn―Niめっき層、Znめっき層、Zn―Alめっき層及び高温耐酸化樹脂コーティング層より選ばれる層が表面に形成されていることを特徴とする、請求項1に記載の鋼製品の製造方法。 - 前記(c)段階において、前記レーザー熱処理は、
前記高強度部の引張強度が1200MPaないし1900MPaになるように、レーザーの照射時間及びレーザー強度を調節することを特徴とする、請求項1又は2に記載の鋼製品の製造方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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KR1020110100174A KR101119173B1 (ko) | 2011-09-30 | 2011-09-30 | 레이저 열처리를 이용한 이종강도를 갖는 강 제품 제조 방법 및 이에 이용되는 열처리 경화강 |
KR10-2011-0100174 | 2011-09-30 | ||
PCT/KR2011/007703 WO2013047939A1 (ko) | 2011-09-30 | 2011-10-17 | 레이저 열처리를 이용한 이종강도를 갖는 강 제품 제조 방법 및 이에 이용되는 열처리 경화강 |
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JP5898772B2 true JP5898772B2 (ja) | 2016-04-06 |
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US (2) | US20140227553A1 (ja) |
EP (1) | EP2762577B1 (ja) |
JP (1) | JP5898772B2 (ja) |
KR (1) | KR101119173B1 (ja) |
CN (1) | CN103842527A (ja) |
WO (1) | WO2013047939A1 (ja) |
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KR101505244B1 (ko) | 2012-07-30 | 2015-03-23 | 현대제철 주식회사 | 강 부품의 열처리 방법 및 이를 이용한 트랙링크 제조 방법 |
CA2930313C (en) | 2013-11-25 | 2022-05-31 | Magna International Inc. | Structural component including a tempered transition zone |
TWI488925B (zh) * | 2014-09-16 | 2015-06-21 | China Steel Corp | Anti - high temperature oxidation coating steel plate and its hot stamping method |
CN104946987A (zh) * | 2015-05-28 | 2015-09-30 | 武汉钢铁(集团)公司 | 一种高强度精轧钢筋及其生产方法 |
EP3331656A1 (en) * | 2015-08-04 | 2018-06-13 | Autotech Engineering, A.I.E. | Reinforced structural components |
KR101758517B1 (ko) * | 2015-12-23 | 2017-07-14 | 주식회사 포스코 | 강판 열처리 장치 및 방법 |
US10294552B2 (en) * | 2016-01-27 | 2019-05-21 | GM Global Technology Operations LLC | Rapidly solidified high-temperature aluminum iron silicon alloys |
US10260131B2 (en) | 2016-08-09 | 2019-04-16 | GM Global Technology Operations LLC | Forming high-strength, lightweight alloys |
DE102016219278A1 (de) * | 2016-10-05 | 2018-04-05 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zur Herstellung eines hochfesten Tubenteils |
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KR101033767B1 (ko) * | 2010-11-03 | 2011-05-09 | 현대하이스코 주식회사 | 열처리 경화 강판을 이용한 국부적으로 이종강도를 가지는 자동차 부품 제조방법 |
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2011
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- 2011-10-17 EP EP11873399.7A patent/EP2762577B1/en active Active
- 2011-10-17 WO PCT/KR2011/007703 patent/WO2013047939A1/ko active Application Filing
- 2011-10-17 CN CN201180073901.8A patent/CN103842527A/zh active Pending
- 2011-10-17 JP JP2014533173A patent/JP5898772B2/ja active Active
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WO2013047939A1 (ko) | 2013-04-04 |
US20140227553A1 (en) | 2014-08-14 |
CN103842527A (zh) | 2014-06-04 |
EP2762577A4 (en) | 2014-09-24 |
KR101119173B1 (ko) | 2012-02-22 |
EP2762577A1 (en) | 2014-08-06 |
US20150211086A1 (en) | 2015-07-30 |
JP2014534334A (ja) | 2014-12-18 |
EP2762577B1 (en) | 2016-04-27 |
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