KR101846112B1 - 핫 스탬프 강재 - Google Patents
핫 스탬프 강재 Download PDFInfo
- Publication number
- KR101846112B1 KR101846112B1 KR1020167028072A KR20167028072A KR101846112B1 KR 101846112 B1 KR101846112 B1 KR 101846112B1 KR 1020167028072 A KR1020167028072 A KR 1020167028072A KR 20167028072 A KR20167028072 A KR 20167028072A KR 101846112 B1 KR101846112 B1 KR 101846112B1
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- KR
- South Korea
- Prior art keywords
- layer
- hot
- steel material
- solid solution
- tempering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
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- 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
- C23C2/26—After-treatment
- C23C2/261—After-treatment in a gas atmosphere, e.g. inert or reducing atmosphere
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
- B32B15/013—Layered products comprising a layer of metal all layers being exclusively metallic one layer being formed of an iron alloy or steel, another layer being formed of a metal other than iron or aluminium
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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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
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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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
- C21D1/673—Quenching devices for die quenching
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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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C18/00—Alloys based on zinc
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
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- 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
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- C—CHEMISTRY; METALLURGY
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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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- 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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- 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
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- C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
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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
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
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- 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
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- C23C2/06—Zinc or cadmium or alloys based thereon
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- C—CHEMISTRY; METALLURGY
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- 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
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- 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
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- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
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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
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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
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Abstract
Description
도 2는 아연 도금층을 갖는 핫 스탬프 강재를 500℃에서 템퍼링한 경우의 아연 도금층 및 그 주변의 단면 사진 화상이다.
도 3은 아연 도금층을 갖는 핫 스탬프 강재를 700℃에서 템퍼링한 경우의 아연 도금층 및 그 주변의 단면 사진 화상이다.
도 4는 도 1에 도시하는 아연 도금층의 XRD 측정 결과를 나타내는 도면이다.
도 5는 도 2에 도시하는 아연 도금층의 XRD 측정 결과를 나타내는 도면이다.
도 6은 도 3에 도시하는 아연 도금층의 XRD 측정 결과를 나타내는 도면이다.
도 7은 Fe-Zn 2원계 상태도이다.
도 8은 실시예에 있어서의, 500℃에서 템퍼링된 핫 스탬프 강재를 인산염 처리한 경우의 강재 표면의 SEM 화상이다.
도 9는 도 8의 SEM 화상을 2치화한 화상이다.
도 10은 실시예에 있어서의, 400℃에서 템퍼링된 핫 스탬프 강재를 인산염 처리한 경우의 강재 표면의 SEM 화상이다.
도 11은 도 10의 SEM 화상을 2치화한 화상이다.
도 12는 실시예에 있어서의, 700℃에서 템퍼링된 핫 스탬프 강재를 인산염 처리한 경우의 강재 표면의 SEM 화상이다.
도 13은 도 12의 SEM 화상을 2치화한 화상이다.
20: 템퍼링부
30: 아연 산화물층
40: 라멜라층
Claims (6)
- Ac3점 내지 950℃의 온도로 가열하고 30분 간 유지한 후에 워터 켄칭을 실시한 경우의 표층으로부터 판 두께의 1/4의 깊이의 위치에 있어서의 비커스 경도를 최고 켄칭 경도라 정의한 경우, 상기 최고 켄칭 경도의 85% 이하의 경도를 갖는 템퍼링부를 포함하는 강재인 모재와,
상기 모재의 상기 템퍼링부 상에 형성되는 아연 도금층을 구비하고,
상기 아연 도금층은, Fe 및 상기 Fe에 고용된 Zn을 함유하는 고용체상으로 이루어지는 고용체층과, 상기 고용체상과 캐피탈 감마상으로 이루어지는 라멜라층을 포함하며,
상기 아연 도금층의 압연 방향에 수직한 단면에 있어서, 상기 라멜라층의 면적률이 30% 내지 100%이고, 상기 고용체층의 면적률이 0 내지 70%이며,
상기 모재가,
C : 0.05 내지 0.4%,
Si : 0.05 내지 0.3%,
Mn : 0.5 내지 2.5%,
P : 0 내지 0.03%,
S : 0 내지 0.010%,
sol. Al : 0.01 내지 0.05%,
N : 0 내지 0.010%,
B : 0 내지 0.0050%,
Ti : 0 내지 0.10%,
Cr : 0 내지 0.5%,
Mo : 0 내지 0.50%,
Nb : 0 내지 0.10%,
Ni : 0 내지 1.0%,
를 함유하고, 잔부가 Fe 및 불순물을 포함하는 화학 조성을 갖는
것을 특징으로 하는, 핫 스탬프 강재. - 제1항에 있어서,
상기 아연 도금층 중의 상기 라멜라층의 면적률이 80% 내지 100%인
것을 특징으로 하는, 핫 스탬프 강재. - 제1항 또는 제2항에 있어서,
시험 하중을 10kgf로 하였을 때, 상기 템퍼링부의 비커스 경도가 180 내지 450Hv인
것을 특징으로 하는, 핫 스탬프 강재. - 제1항 또는 제2항에 있어서,
상기 템퍼링부의 경도가 상기 최고 켄칭 경도의 65% 이하인
것을 특징으로 하는, 핫 스탬프 강재. - 제1항 또는 제2항에 있어서,
Ac3점 내지 950℃로 가열된 후, 금형을 사용한 프레스 가공에 의하여 가공과 켄칭이 동시에 실시되고, 그 후, 500℃ 내지 700℃ 미만에서 템퍼링됨으로써 제조되는
것을 특징으로 하는, 핫 스탬프 강재. - 제1항 또는 제2항에 있어서,
상기 모재 중 일부가 상기 템퍼링부인 것을 특징으로 하는, 핫 스탬프 강재.
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| JPJP-P-2014-073811 | 2014-03-31 | ||
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| PCT/JP2015/060185 WO2015152263A1 (ja) | 2014-03-31 | 2015-03-31 | ホットスタンプ鋼材 |
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| WO2017185320A1 (en) * | 2016-04-29 | 2017-11-02 | GM Global Technology Operations LLC | Low density zinc-coated steel produced by austenitizing and quench process |
| CN107378899A (zh) * | 2017-08-21 | 2017-11-24 | 太仓森楚源机械设备有限公司 | 结构简单的周转车 |
| JP7043958B2 (ja) * | 2017-10-11 | 2022-03-30 | トヨタ自動車株式会社 | 鋼板部材及びその製造方法 |
| CN108265161A (zh) * | 2018-02-11 | 2018-07-10 | 舞阳钢铁有限责任公司 | 薄规格调质型12MnNiVR钢板的热处理方法 |
| CN113811630B (zh) * | 2019-07-02 | 2022-07-12 | 日本制铁株式会社 | 热压成形体 |
| EP3854889A1 (en) | 2020-01-24 | 2021-07-28 | Cie Automotive, S.A. | Method for controlled coolling of forged parts made of microalloyed steel |
| US11878488B2 (en) * | 2020-03-23 | 2024-01-23 | Nippon Steel Corporation | Hot stamped component |
| WO2021191961A1 (ja) * | 2020-03-23 | 2021-09-30 | 日本製鉄株式会社 | ホットスタンプ成形体 |
| CN112011752B (zh) * | 2020-08-20 | 2022-06-21 | 马鞍山钢铁股份有限公司 | 一种高耐蚀热成形钢零部件及其制造方法 |
| US12157924B2 (en) | 2020-10-27 | 2024-12-03 | Jfe Steel Corporation | Hot-pressed member, steel sheet for hot pressing, and methods for producing the hot-pressed member and the steel sheet for hot pressing |
| WO2023041953A1 (en) * | 2021-09-14 | 2023-03-23 | Arcelormittal | High strength press hardened steel part and method of manufacturing the same |
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| JP4039548B2 (ja) | 2001-10-23 | 2008-01-30 | 住友金属工業株式会社 | 耐食性に優れた熱間プレス成形品 |
| JP3582511B2 (ja) | 2001-10-23 | 2004-10-27 | 住友金属工業株式会社 | 熱間プレス成形用表面処理鋼とその製造方法 |
| DE10333165A1 (de) | 2003-07-22 | 2005-02-24 | Daimlerchrysler Ag | Pressgehärtetes Bauteil und Verfahren zur Herstellung eines pressgehärteten Bauteils |
| JP4630099B2 (ja) | 2005-03-25 | 2011-02-09 | 株式会社神戸製鋼所 | リン酸塩処理性および塗装後耐食性に優れた熱処理加工用溶融Znめっき鋼板並びにその製造方法 |
| JP4695459B2 (ja) * | 2005-08-24 | 2011-06-08 | 新日本製鐵株式会社 | 塗装後耐食性に優れた亜鉛系めっきが施された熱間プレス鋼材 |
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| DE102009030489A1 (de) | 2009-06-24 | 2010-12-30 | Thyssenkrupp Nirosta Gmbh | Verfahren zum Herstellen eines warmpressgehärteten Bauteils, Verwendung eines Stahlprodukts für die Herstellung eines warmpressgehärteten Bauteils und warmpressgehärtetes Bauteil |
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| TWI609087B (zh) | 2017-12-21 |
| RU2016140280A3 (ko) | 2018-05-07 |
| JP6288248B2 (ja) | 2018-03-07 |
| RU2659526C2 (ru) | 2018-07-02 |
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