WO2011022463A3 - Deeply carburized low or medium carbons steels - Google Patents

Deeply carburized low or medium carbons steels Download PDF

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Publication number
WO2011022463A3
WO2011022463A3 PCT/US2010/045862 US2010045862W WO2011022463A3 WO 2011022463 A3 WO2011022463 A3 WO 2011022463A3 US 2010045862 W US2010045862 W US 2010045862W WO 2011022463 A3 WO2011022463 A3 WO 2011022463A3
Authority
WO
WIPO (PCT)
Prior art keywords
medium
carburized
deeply
steels
steel
Prior art date
Application number
PCT/US2010/045862
Other languages
French (fr)
Other versions
WO2011022463A2 (en
Inventor
Robert L. Meyer
Gary D. Keil
Scott A. Johnston
Steve A. Rager
Michael L. Johnson
Original Assignee
Caterpillar Inc.
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 Caterpillar Inc. filed Critical Caterpillar Inc.
Publication of WO2011022463A2 publication Critical patent/WO2011022463A2/en
Publication of WO2011022463A3 publication Critical patent/WO2011022463A3/en

Links

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
    • 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
    • C23C8/40—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 liquids, e.g. salt baths, liquid suspensions
    • C23C8/42—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 liquids, e.g. salt baths, liquid suspensions only one element being applied
    • C23C8/44—Carburising
    • C23C8/46—Carburising of ferrous surfaces
    • 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
    • C23C8/60—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 solids, e.g. powders, pastes
    • C23C8/62—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 solids, e.g. powders, pastes only one element being applied
    • C23C8/64—Carburising
    • C23C8/66—Carburising of ferrous surfaces

Landscapes

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

Abstract

A new process for forming deeply carburized, case-hardened low- to medium-carbon steel for use in high wear, high toughness applications. The process involves subjecting the steel to a carburizing heat treatment, then subjecting the carburized steel to a deep hardening stage to produce a hard case. Carburizing such steels in the past has led to surface cracking, but here, the deep hard case creates compressive stresses at the surface and prevents cracking.
PCT/US2010/045862 2009-08-18 2010-08-18 Deeply carburized low or medium carbons steels WO2011022463A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US23467709P 2009-08-18 2009-08-18
US61/234,677 2009-08-18
US85791010A 2010-08-17 2010-08-17
US12/857,910 2010-08-17

Publications (2)

Publication Number Publication Date
WO2011022463A2 WO2011022463A2 (en) 2011-02-24
WO2011022463A3 true WO2011022463A3 (en) 2011-06-09

Family

ID=43607569

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2010/045862 WO2011022463A2 (en) 2009-08-18 2010-08-18 Deeply carburized low or medium carbons steels

Country Status (1)

Country Link
WO (1) WO2011022463A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9719158B2 (en) 2014-12-29 2017-08-01 Progress Rail Services Corporation Explosively depth hardened crawler shoes

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2544160B2 (en) * 1987-10-12 1996-10-16 エヌティエヌ株式会社 Carburized bearing body and manufacturing method thereof
US20050133120A1 (en) * 2003-12-22 2005-06-23 Walenta John B. Carbide method and article for hard finishing resulting in improved wear resistance
JP2006097096A (en) * 2004-09-29 2006-04-13 Daido Steel Co Ltd Bearing steel component subjected to carburizing or carbonitriding
US20080006347A1 (en) * 2006-06-22 2008-01-10 Jtekt Corporation Rolling/sliding part and production method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2544160B2 (en) * 1987-10-12 1996-10-16 エヌティエヌ株式会社 Carburized bearing body and manufacturing method thereof
US20050133120A1 (en) * 2003-12-22 2005-06-23 Walenta John B. Carbide method and article for hard finishing resulting in improved wear resistance
JP2006097096A (en) * 2004-09-29 2006-04-13 Daido Steel Co Ltd Bearing steel component subjected to carburizing or carbonitriding
US20080006347A1 (en) * 2006-06-22 2008-01-10 Jtekt Corporation Rolling/sliding part and production method thereof

Also Published As

Publication number Publication date
WO2011022463A2 (en) 2011-02-24

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