WO2009034970A1 - Case-hardening steel being excellent in contact pressure fatigue strength, impact strength and bending fatigue strength - Google Patents

Case-hardening steel being excellent in contact pressure fatigue strength, impact strength and bending fatigue strength Download PDF

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Publication number
WO2009034970A1
WO2009034970A1 PCT/JP2008/066244 JP2008066244W WO2009034970A1 WO 2009034970 A1 WO2009034970 A1 WO 2009034970A1 JP 2008066244 W JP2008066244 W JP 2008066244W WO 2009034970 A1 WO2009034970 A1 WO 2009034970A1
Authority
WO
WIPO (PCT)
Prior art keywords
strength
fatigue strength
case
hardening steel
contact pressure
Prior art date
Application number
PCT/JP2008/066244
Other languages
French (fr)
Japanese (ja)
Inventor
Motohiro Nishikawa
Takashi Tanaka
Original Assignee
Sanyo Special Steel Co., Ltd.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sanyo Special Steel Co., Ltd. filed Critical Sanyo Special Steel Co., Ltd.
Publication of WO2009034970A1 publication Critical patent/WO2009034970A1/en

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Classifications

    • 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
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
    • C23C8/20—Carburising
    • C23C8/22—Carburising of ferrous surfaces
    • 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
    • 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
    • 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
    • C21D2211/004—Dispersions; Precipitations

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)

Abstract

It is intended to provide a case-hardening steel which is capable of improving all of the characteristics including contact pressure fatigue strength, impact strength and bending fatigue strength of a carburized gear and elevating the strength of a carburized member by gas carburization at a low cost. This case-hardening steel is one comprising, in terms of % by mass, 0.10 to 0.35% of C, 0.40 to 1.50% of Si, 0.10 to 1.50% of Mn, not more than 0.030% of P, not more than 0.030% of S, 0.50 to 3.00% of Cr, 0.02 to 0.20% of Ti, 0.005 to 0.050% of Al, 0.0010 to 0.0050% of B, not more than 0.0100% of N, 0 to 3.00% of Ni, 0 to 1.00% of Mo, 0 to 0.20% of Nb, 0 to 0.20% of V, and the balance Fe and unavoidable impurities, wherein the requirements Ti>3.4N and 7Si+3Cr+Mn≥7.0 are satisfied and the abnormal layer depth in gas carburization is 10 μm or less.
PCT/JP2008/066244 2007-09-12 2008-09-09 Case-hardening steel being excellent in contact pressure fatigue strength, impact strength and bending fatigue strength WO2009034970A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007237317A JP5213393B2 (en) 2007-09-12 2007-09-12 Hardened steel with excellent surface fatigue strength, impact strength and bending fatigue strength
JP2007-237317 2007-09-12

Publications (1)

Publication Number Publication Date
WO2009034970A1 true WO2009034970A1 (en) 2009-03-19

Family

ID=40451977

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/066244 WO2009034970A1 (en) 2007-09-12 2008-09-09 Case-hardening steel being excellent in contact pressure fatigue strength, impact strength and bending fatigue strength

Country Status (2)

Country Link
JP (1) JP5213393B2 (en)
WO (1) WO2009034970A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2562283A4 (en) * 2010-04-19 2017-07-05 Nippon Steel & Sumitomo Metal Corporation Steel component having excellent temper softening resistance
CN109161821A (en) * 2018-09-29 2019-01-08 北京金物科技发展有限公司 A kind of carburizing bearing steel and preparation method thereof
CN114855090A (en) * 2022-05-26 2022-08-05 江苏永钢集团有限公司 High-strength and high-toughness wind power gear steel and preparation method thereof

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9797045B2 (en) 2011-02-10 2017-10-24 Nippon Steel & Sumitomo Metal Corporation Steel for carburizing, carburized steel component, and method of producing the same
US9796158B2 (en) 2011-02-10 2017-10-24 Nippon Steel & Sumitomo Metal Corporation Steel for carburizing, carburized steel component, and method of producing the same
JP5777090B2 (en) * 2011-04-21 2015-09-09 山陽特殊製鋼株式会社 Steel for machine structural use with excellent surface fatigue strength
JP6029950B2 (en) * 2012-11-22 2016-11-24 Ｊｆｅ条鋼株式会社 After hot forging, normalizing can be omitted, and a method for producing case-hardened steel and parts with excellent high-temperature carburizing properties
CN104928582A (en) * 2015-05-05 2015-09-23 广东韶钢松山股份有限公司 41Cr4 gear steel and production method thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001329337A (en) * 2000-05-17 2001-11-27 Sanyo Special Steel Co Ltd Case hardening steel excellent in chipping resistance
JP2004300550A (en) * 2003-03-31 2004-10-28 Sanyo Special Steel Co Ltd High-strength case hardening steel
JP2005163148A (en) * 2003-12-04 2005-06-23 Sanyo Special Steel Co Ltd Case hardening steel for high strength gear
JP2005325398A (en) * 2004-05-13 2005-11-24 Jfe Bars & Shapes Corp High-strength gear and manufacturing method therefor
JP2006169637A (en) * 2001-05-14 2006-06-29 Sanyo Special Steel Co Ltd Method for manufacturing high-strength carburized part
JP2007217761A (en) * 2006-02-17 2007-08-30 Kobe Steel Ltd Case hardening steel having excellent low cycle fatigue strength

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001329337A (en) * 2000-05-17 2001-11-27 Sanyo Special Steel Co Ltd Case hardening steel excellent in chipping resistance
JP2006169637A (en) * 2001-05-14 2006-06-29 Sanyo Special Steel Co Ltd Method for manufacturing high-strength carburized part
JP2004300550A (en) * 2003-03-31 2004-10-28 Sanyo Special Steel Co Ltd High-strength case hardening steel
JP2005163148A (en) * 2003-12-04 2005-06-23 Sanyo Special Steel Co Ltd Case hardening steel for high strength gear
JP2005325398A (en) * 2004-05-13 2005-11-24 Jfe Bars & Shapes Corp High-strength gear and manufacturing method therefor
JP2007217761A (en) * 2006-02-17 2007-08-30 Kobe Steel Ltd Case hardening steel having excellent low cycle fatigue strength

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2562283A4 (en) * 2010-04-19 2017-07-05 Nippon Steel & Sumitomo Metal Corporation Steel component having excellent temper softening resistance
CN109161821A (en) * 2018-09-29 2019-01-08 北京金物科技发展有限公司 A kind of carburizing bearing steel and preparation method thereof
CN114855090A (en) * 2022-05-26 2022-08-05 江苏永钢集团有限公司 High-strength and high-toughness wind power gear steel and preparation method thereof

Also Published As

Publication number Publication date
JP5213393B2 (en) 2013-06-19
JP2009068064A (en) 2009-04-02

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