JP2012144752A - 腐食疲労強度に優れるばね - Google Patents
腐食疲労強度に優れるばね Download PDFInfo
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- JP2012144752A JP2012144752A JP2011001524A JP2011001524A JP2012144752A JP 2012144752 A JP2012144752 A JP 2012144752A JP 2011001524 A JP2011001524 A JP 2011001524A JP 2011001524 A JP2011001524 A JP 2011001524A JP 2012144752 A JP2012144752 A JP 2012144752A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/021—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant characterised by their composition, e.g. comprising materials providing for particular spring properties
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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
- C21D1/25—Hardening, combined with annealing between 300 degrees Celsius and 600 degrees Celsius, i.e. heat refining ("Vergüten")
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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
- C21D7/00—Modifying the physical properties of iron or steel by deformation
- C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
- C21D7/04—Modifying the physical properties of iron or steel by deformation by cold working of the surface
- C21D7/06—Modifying the physical properties of iron or steel by deformation by cold working of the surface by shot-peening or the like
-
- 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
- C21D9/02—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for springs
-
- 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
-
- 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
- C22C38/18—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
-
- 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
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- 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
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
-
- 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
-
- 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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/04—Wound springs
-
- 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/001—Austenite
-
- 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/008—Martensite
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Heat Treatment Of Articles (AREA)
- Springs (AREA)
Abstract
【解決手段】 本発明のばねは、ロックウェル硬さがHRC53〜HRC56であって、
ロックウェル硬さHRC53〜HRC56の範囲において、ロックウェル硬さをHとしたときの転位密度D(cm−2)が、式(1)を満足しており、旧オーステナイト結晶粒度番号がNO.10以上である。
(式1)D≧1.4×1011×H−6.7×1012
【選択図】 なし
Description
D≧1.4×1011×H−6.7×1012・・・(1)
D=1.4×1011×H−6.7×1012・・・(2)
D≧1.4×1011×H−6.7×1012・・・(1)
D≧1.4×1011×H−6.7×1012・・・(1)
Claims (6)
- ロックウェル硬さがHRC53〜HRC56であって、
ロックウェル硬さHRC53〜HRC56の範囲において、ロックウェル硬さをHとしたときの転位密度D(cm−2)が、下記式(1)を満足しており、
D≧1.4×1011×H−6.7×1012・・・(1)
旧オーステナイト結晶粒度番号がNO.10以上であることを特徴とするばね。 - 前記ばねが、焼戻マルテンサイトを含んでいるとともに、Siを質量%で2.1%以上2.4%以下含んでいる請求項1に記載のばね。
- 前記焼戻マルテンサイトに含まれる炭化物のうち、最小長さが15nm未満の炭化物の数が炭化物の全数の40%以上であることを特徴とする請求項2に記載のばね。
- 質量%で、炭素を0.35%以上0.55%以下、マンガンを0.20%以上1.50%以下、クロムを0.10%以上1.50%以下含んでおり、
さらに、ニッケル、モリブデン、バナジウムから選択される1種又は2種以上を、質量%で、ニッケル0.40%以上3.00%以下、モリブデン0.05%以上0.50%以下、バナジウム0.05%以上0.50%以下含んでおり、
残部が鉄及び不可避不純物からなることを特徴とする請求項1〜3のいずれか一項に記載のばね。 - マンガンを0.40%以上0.50%以下含んでいることを特徴とする請求項4に記載のばね。
- Niを0.50%以上0.60%以下含んでいることを特徴とする請求項4又は5に記載のばね。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011001524A JP5711539B2 (ja) | 2011-01-06 | 2011-01-06 | 腐食疲労強度に優れるばね |
US13/978,321 US9068615B2 (en) | 2011-01-06 | 2011-08-23 | Spring having excellent corrosion fatigue strength |
PCT/JP2011/068916 WO2012093506A1 (ja) | 2011-01-06 | 2011-08-23 | 腐食疲労強度に優れるばね |
DE201111104680 DE112011104680T5 (de) | 2011-01-06 | 2011-08-23 | Feder mit hervorragender Korrosionsschwingfestigkeit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011001524A JP5711539B2 (ja) | 2011-01-06 | 2011-01-06 | 腐食疲労強度に優れるばね |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2012144752A true JP2012144752A (ja) | 2012-08-02 |
JP5711539B2 JP5711539B2 (ja) | 2015-05-07 |
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Application Number | Title | Priority Date | Filing Date |
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JP2011001524A Active JP5711539B2 (ja) | 2011-01-06 | 2011-01-06 | 腐食疲労強度に優れるばね |
Country Status (4)
Country | Link |
---|---|
US (1) | US9068615B2 (ja) |
JP (1) | JP5711539B2 (ja) |
DE (1) | DE112011104680T5 (ja) |
WO (1) | WO2012093506A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3020841A1 (en) * | 2013-07-09 | 2016-05-18 | NHK Spring Co., Ltd. | Coil spring, and method for manufacturing same |
US9970072B2 (en) | 2012-12-21 | 2018-05-15 | Kobe Steel, Ltd. | High-strength spring steel wire with excellent hydrogen embrittlement resistance, manufacturing process therefor, and high-strength spring |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8789817B2 (en) * | 2009-09-29 | 2014-07-29 | Chuo Hatsujo Kabushiki Kaisha | Spring steel and spring having superior corrosion fatigue strength |
JP2012036418A (ja) * | 2010-08-03 | 2012-02-23 | Chuo Spring Co Ltd | 高強度ばねとその製造方法 |
DE102012111679A1 (de) | 2012-01-19 | 2013-07-25 | Gesenkschmiede Schneider Gmbh | Niedrig legierter Stahl und damit hergestellte Bauteile |
JP6208611B2 (ja) * | 2014-03-31 | 2017-10-04 | 株式会社神戸製鋼所 | 疲労特性に優れた高強度鋼材 |
EP3333277B1 (en) * | 2015-08-05 | 2019-04-24 | Sidenor Investigación y Desarrollo, S.A. | High-strength low-alloy steel with high resistance to high-temperature oxidation |
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- 2011-01-06 JP JP2011001524A patent/JP5711539B2/ja active Active
- 2011-08-23 WO PCT/JP2011/068916 patent/WO2012093506A1/ja active Application Filing
- 2011-08-23 US US13/978,321 patent/US9068615B2/en not_active Expired - Fee Related
- 2011-08-23 DE DE201111104680 patent/DE112011104680T5/de not_active Withdrawn
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9970072B2 (en) | 2012-12-21 | 2018-05-15 | Kobe Steel, Ltd. | High-strength spring steel wire with excellent hydrogen embrittlement resistance, manufacturing process therefor, and high-strength spring |
EP3020841A1 (en) * | 2013-07-09 | 2016-05-18 | NHK Spring Co., Ltd. | Coil spring, and method for manufacturing same |
EP3020841A4 (en) * | 2013-07-09 | 2017-03-29 | NHK Spring Co., Ltd. | Coil spring, and method for manufacturing same |
Also Published As
Publication number | Publication date |
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WO2012093506A1 (ja) | 2012-07-12 |
DE112011104680T5 (de) | 2013-10-02 |
US9068615B2 (en) | 2015-06-30 |
JP5711539B2 (ja) | 2015-05-07 |
US20130285299A1 (en) | 2013-10-31 |
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