WO2002070769A8 - Steel article - Google Patents

Steel article

Info

Publication number
WO2002070769A8
WO2002070769A8 PCT/SE2002/000372 SE0200372W WO02070769A8 WO 2002070769 A8 WO2002070769 A8 WO 2002070769A8 SE 0200372 W SE0200372 W SE 0200372W WO 02070769 A8 WO02070769 A8 WO 02070769A8
Authority
WO
WIPO (PCT)
Prior art keywords
carbides
max
vol
steel
micro
Prior art date
Application number
PCT/SE2002/000372
Other languages
French (fr)
Other versions
WO2002070769A1 (en
Inventor
Odd Sandberg
Lennart Joensson
Original Assignee
Uddeholm Tooling Ab
Odd Sandberg
Lennart Joensson
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 Uddeholm Tooling Ab, Odd Sandberg, Lennart Joensson filed Critical Uddeholm Tooling Ab
Priority to CA002436423A priority Critical patent/CA2436423A1/en
Priority to EP02701848A priority patent/EP1366204A1/en
Priority to BR0207667-5A priority patent/BR0207667A/en
Priority to US10/470,486 priority patent/US20040094239A1/en
Priority to KR10-2003-7011663A priority patent/KR20030076723A/en
Priority to JP2002570790A priority patent/JP2004523656A/en
Publication of WO2002070769A1 publication Critical patent/WO2002070769A1/en
Publication of WO2002070769A8 publication Critical patent/WO2002070769A8/en

Links

Classifications

    • 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
    • C22C38/36—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.7% by weight of carbon
    • 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
    • C22C33/00—Making ferrous alloys
    • C22C33/02—Making ferrous alloys by powder metallurgy
    • C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
    • C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
    • C22C33/0285—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5% with Cr, Co, or Ni having a minimum content higher than 5%
    • 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
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • 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
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium 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
    • C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium 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
    • C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • 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)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)
  • Metal Rolling (AREA)
  • Heat Treatment Of Steel (AREA)
  • Coating By Spraying Or Casting (AREA)

Abstract

A steel article consists of an alloy which contain in weight-%: 1.7 - 2.5 C; 0.1 - 2.0 Si; 0.1 - 2.0 Mn; max 0.2 N; max 0.2 S; 12 16 Cr; 2.1 - 3.5 (Mo + W/2); 5 - 8 V; max 0.1 Nb, balance essentially only iron and unavoidable impurities. The steel has a micro-structure obtainable by a manufacturing of the steel which comprises spray forming of an ingot, the micro-structure of which contains 14 -25 vol-% carbides of mainly MC-type, where M substantially consists of vanadium, of which carbides at least 80 vol-% have a substantially rounded shape and a size in the longest extension of the carbides amounting to 1 - 10 νm, and M7C3-carbides, where M substantially consists of chromium, which carbides typically have a more elongated shape than the MC-carbides, of which MC-carbides at least 80 vol-% have a maximal extension amounting to 3-50 νm.
PCT/SE2002/000372 2001-03-06 2002-03-05 Steel article WO2002070769A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CA002436423A CA2436423A1 (en) 2001-03-06 2002-03-05 Steel article
EP02701848A EP1366204A1 (en) 2001-03-06 2002-03-05 Steel article
BR0207667-5A BR0207667A (en) 2001-03-06 2002-03-05 Steel article
US10/470,486 US20040094239A1 (en) 2001-03-06 2002-03-05 Steel article
KR10-2003-7011663A KR20030076723A (en) 2001-03-06 2002-03-05 Steel article
JP2002570790A JP2004523656A (en) 2001-03-06 2002-03-05 Steel products

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0100737A SE518678C2 (en) 2001-03-06 2001-03-06 Objects made of steel
SE0100737-6 2001-03-06

Publications (2)

Publication Number Publication Date
WO2002070769A1 WO2002070769A1 (en) 2002-09-12
WO2002070769A8 true WO2002070769A8 (en) 2004-06-03

Family

ID=20283212

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2002/000372 WO2002070769A1 (en) 2001-03-06 2002-03-05 Steel article

Country Status (10)

Country Link
US (1) US20040094239A1 (en)
EP (1) EP1366204A1 (en)
JP (1) JP2004523656A (en)
KR (1) KR20030076723A (en)
CN (1) CN1492939A (en)
BR (1) BR0207667A (en)
CA (1) CA2436423A1 (en)
RU (1) RU2003123501A (en)
SE (1) SE518678C2 (en)
WO (1) WO2002070769A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE521150C2 (en) * 2002-02-15 2003-10-07 Uddeholm Tooling Ab Steel material containing carbides and use of this material
CN1780927B (en) * 2003-07-31 2012-07-18 株式会社小松制作所 Sintered sliding member and working implement-connecting apparatus
JP5122068B2 (en) 2004-04-22 2013-01-16 株式会社小松製作所 Fe-based wear-resistant sliding material
AT501794B1 (en) * 2005-04-26 2008-06-15 Boehler Edelstahl PLASTIC FORM
US20060249230A1 (en) * 2005-05-09 2006-11-09 Crucible Materials Corp. Corrosion and wear resistant alloy
SE528991C2 (en) 2005-08-24 2007-04-03 Uddeholm Tooling Ab Steel alloy and tools or components made of the steel alloy
CN109295382B (en) * 2018-10-22 2020-01-24 河南科技大学 High-nitrogen wear-resistant corrosion-resistant alloy and preparation method thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2405749A1 (en) * 1977-10-14 1979-05-11 Thome Cromback Acieries NEW FORGED CRUSHING BODIES, ESPECIALLY CRUSHING BALLS, AND THEIR MANUFACTURING PROCESS
FR2690166A1 (en) * 1992-04-16 1993-10-22 Creusot Loire A method of manufacturing a plated sheet having an abrasion-resistant layer of tool steel and plated sheet obtained.
US5900560A (en) * 1995-11-08 1999-05-04 Crucible Materials Corporation Corrosion resistant, high vanadium, powder metallurgy tool steel articles with improved metal to metal wear resistance and method for producing the same
US5679908A (en) * 1995-11-08 1997-10-21 Crucible Materials Corporation Corrosion resistant, high vanadium, powder metallurgy tool steel articles with improved metal to metal wear resistance and a method for producing the same

Also Published As

Publication number Publication date
SE0100737D0 (en) 2001-03-06
WO2002070769A1 (en) 2002-09-12
KR20030076723A (en) 2003-09-26
US20040094239A1 (en) 2004-05-20
SE518678C2 (en) 2002-11-05
SE0100737L (en) 2002-09-07
EP1366204A1 (en) 2003-12-03
JP2004523656A (en) 2004-08-05
CN1492939A (en) 2004-04-28
BR0207667A (en) 2004-04-27
CA2436423A1 (en) 2002-09-12
RU2003123501A (en) 2005-02-27

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