WO2000036164A1 - Composant de roulement a dimensions stables et resistant a l'usure pour applications a haute temperature - Google Patents

Composant de roulement a dimensions stables et resistant a l'usure pour applications a haute temperature Download PDF

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Publication number
WO2000036164A1
WO2000036164A1 PCT/NL1999/000762 NL9900762W WO0036164A1 WO 2000036164 A1 WO2000036164 A1 WO 2000036164A1 NL 9900762 W NL9900762 W NL 9900762W WO 0036164 A1 WO0036164 A1 WO 0036164A1
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WO
WIPO (PCT)
Prior art keywords
weight
steel
stabilisation
treatment
temperature
Prior art date
Application number
PCT/NL1999/000762
Other languages
English (en)
Inventor
Aidan Michael Kerrigan
Hans Ingemar Strandell
Original Assignee
Skf Engineering And Research Centre B.V.
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 Skf Engineering And Research Centre B.V. filed Critical Skf Engineering And Research Centre B.V.
Priority to AU16974/00A priority Critical patent/AU1697400A/en
Publication of WO2000036164A1 publication Critical patent/WO2000036164A1/fr

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
    • C23C8/80—After-treatment
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/002—Heat treatment of ferrous alloys containing Cr
    • 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
    • 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
    • C21D2211/002—Bainite
    • 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
    • C21D2211/003—Cementite
    • 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
    • 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
    • C21D9/36—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for balls; for rollers
    • 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
    • C21D9/40—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rings; for bearing races

Definitions

  • the invention relates to a method for treating a steel, wherein the starting material comprises: carbon 0.90 - 1.10 % by weight silicon ⁇ 0.70 % by weight manganese 0.25 - 1.20 % by weight chromium 1-30 - 1-95 % by weight nickel ⁇ 0.25 % by weight molybdenum ⁇ 0.25 % by weight, said starting material being subjected to carbonitridin followed by quenching.
  • Such a method is known f om EP 0 626 468 Al .
  • Components made from such steel can e.g. be used for parts of roller bearings.
  • the subject invention is not restricted to such a use.
  • the steel as described above has a satisfying surface hardness for applications, such as in roller bearings for use up to 1 5"C.
  • this component is used for high temperature appl i cations (200- 350°C) it is not sufficient dimensionally stable.
  • the invention aims to provide a method for improving the dimensional stability of the steel described above whilst having satisfactory hardness.
  • rehardening is effected after quenching and before the above stabilisation treatment.
  • the stabilisation treatment is adapted. For example, if a steel has been used at temperatures up to 200°C the stabilisation temperature is effected typically at 24 ⁇ °C. If the temperature of use is up to 250°C stabilisation is typically at 290°C. If the application temperature is up to 300°C its stabilisation will be at around 34 ⁇ "C whilst if the use is at 350°C at maximum the stabilisation temperature is typically 390°C.
  • the surface layer which is carbonitrided, will after this treatment consist of a martensite (and bainite) strengthened by the addition of carbon and nitrogen and also contains a large volume fraction of enlarged carbides. There is no substantial retained austenite ( ⁇ % by volume).
  • Carbonitriding is preferably effected with the method as described in EP- 0 626 468 Al .
  • stabilisation treatment according to the invention gives an increase in surface hardness of 2-3 HRc and also results in an increased bearing service life in conditions of particle contami- nated lubrication.
  • This steel was subjected to a carboni- triding treatment as described in EP 0 626 468 Al .
  • the temperature of this carbonitriding treatment was 800-900°C and t e treatment time was somewhat longer than 10 or 24 hours.
  • the carbon potential was 0,9 - 1,0 and the nitrogen potential 0,1-0,5%.
  • Rehardening was effected at the temperature of 84 ⁇ -870°C during 20-120 minutes depending on the size of the related part.
  • 'Tl' stabilising is typically at 24 ⁇ °C for application temperatures up to 200°C;
  • 'T2' stabilising is typically at 290°C for application temperatures up to 200°C;
  • 'T3' stabilising is typically at 34 ⁇ °C for application temperatures up to 200°C;
  • 'T4' stabilising is typically at 390°C for application temperatures up to 200°C.
  • the final microstructure comprises less than 5% retained au- stenite by volume enlarged carbides and martensite enriched with carbon and nitrogen (surface layer) .
  • surface layer enriched with carbon and nitrogen

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

La présente invention concerne un procédé de fabrication d'un composant en acier destiné à être utilisé à haute température et ayant une surface relativement dure. Ledit procédé consiste à utiliser une matière de base à haute teneur en carbone comprenant environ 1 % en poids de carbone carbonitruré, trempé et durci à nouveau. Selon l'invention, ce traitement est suivi d'un traitement de stabilisation à une température d'au moins 220 °C. La température du traitement de stabilisation dépend de la température à laquelle l'acier va être utilisé ultérieurement.
PCT/NL1999/000762 1998-12-11 1999-12-13 Composant de roulement a dimensions stables et resistant a l'usure pour applications a haute temperature WO2000036164A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU16974/00A AU1697400A (en) 1998-12-11 1999-12-13 Wear resistant dimensionally stable bearing component for high temperature applications

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1010795A NL1010795C2 (nl) 1998-12-11 1998-12-11 Slijtvast dimensioneel stabiel lageronderdeel voor toepassingen bij hoge temperatuur.
NL1010795 1998-12-11

Publications (1)

Publication Number Publication Date
WO2000036164A1 true WO2000036164A1 (fr) 2000-06-22

Family

ID=19768303

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL1999/000762 WO2000036164A1 (fr) 1998-12-11 1999-12-13 Composant de roulement a dimensions stables et resistant a l'usure pour applications a haute temperature

Country Status (3)

Country Link
AU (1) AU1697400A (fr)
NL (1) NL1010795C2 (fr)
WO (1) WO2000036164A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007044950B3 (de) * 2007-09-20 2009-01-29 Ab Skf Für eine Wälzbeanspruchung ausgebildetes Werkstück aus durchhärtendem Stahl und Verfahren zur Wärmebehandlung
US20110073222A1 (en) * 2007-10-04 2011-03-31 Ingemar Strandell Heat-Treatment Process for a Steel
CN104540970A (zh) * 2012-08-21 2015-04-22 Skf公司 热处理钢构件的方法及钢构件
CN110139942A (zh) * 2016-12-22 2019-08-16 株式会社Posco 高硬度耐磨钢及其制造方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4191599A (en) * 1978-09-13 1980-03-04 Ford Motor Company Method of heat treating high carbon alloy steel parts to develop surface compressive residual stresses
EP0033403A1 (fr) * 1980-01-31 1981-08-12 Ford Motor Company Procédé de traitement de la surface d'articles en acier à haute teneur en carbone et articles en acier à haute teneur en carbone
GB2259714A (en) * 1991-09-19 1993-03-24 Nsk Ltd Ball-and-roller bearing
EP0626468A1 (fr) * 1993-05-26 1994-11-30 SKF Industrial Trading & Development Co, B.V. Procédé de carbonitruration d'acier
US5672014A (en) * 1994-09-29 1997-09-30 Nsk Ltd. Rolling bearings

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4191599A (en) * 1978-09-13 1980-03-04 Ford Motor Company Method of heat treating high carbon alloy steel parts to develop surface compressive residual stresses
EP0033403A1 (fr) * 1980-01-31 1981-08-12 Ford Motor Company Procédé de traitement de la surface d'articles en acier à haute teneur en carbone et articles en acier à haute teneur en carbone
GB2259714A (en) * 1991-09-19 1993-03-24 Nsk Ltd Ball-and-roller bearing
EP0626468A1 (fr) * 1993-05-26 1994-11-30 SKF Industrial Trading & Development Co, B.V. Procédé de carbonitruration d'acier
US5672014A (en) * 1994-09-29 1997-09-30 Nsk Ltd. Rolling bearings

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007044950B3 (de) * 2007-09-20 2009-01-29 Ab Skf Für eine Wälzbeanspruchung ausgebildetes Werkstück aus durchhärtendem Stahl und Verfahren zur Wärmebehandlung
EP2045339A1 (fr) * 2007-09-20 2009-04-08 Ab Skf Pièce soumise à une usure par roulement en acier endurci et méthode de traitement thermique
US8246761B2 (en) 2007-09-20 2012-08-21 Aktiebolaget Skf Workpiece designed for rolling stresses and formed of fully hardening steel, and a heat treatment process therefor
US20110073222A1 (en) * 2007-10-04 2011-03-31 Ingemar Strandell Heat-Treatment Process for a Steel
CN104540970A (zh) * 2012-08-21 2015-04-22 Skf公司 热处理钢构件的方法及钢构件
CN110139942A (zh) * 2016-12-22 2019-08-16 株式会社Posco 高硬度耐磨钢及其制造方法

Also Published As

Publication number Publication date
NL1010795C2 (nl) 2000-06-19
AU1697400A (en) 2000-07-03

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