GB1313981A - High alloy steel powders and their consolidation into homogeneous tool steel - Google Patents

High alloy steel powders and their consolidation into homogeneous tool steel

Info

Publication number
GB1313981A
GB1313981A GB3917171A GB3917171A GB1313981A GB 1313981 A GB1313981 A GB 1313981A GB 3917171 A GB3917171 A GB 3917171A GB 3917171 A GB3917171 A GB 3917171A GB 1313981 A GB1313981 A GB 1313981A
Authority
GB
United Kingdom
Prior art keywords
powder
oxygen
carbon
carbide
heated
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB3917171A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoganas AB
Original Assignee
Hoganas AB
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
Priority claimed from SE7011689A external-priority patent/SE344968C/en
Application filed by Hoganas AB filed Critical Hoganas AB
Publication of GB1313981A publication Critical patent/GB1313981A/en
Expired legal-status Critical Current

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
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • 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%

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)

Abstract

1313981 Sintered steels HOGANAS A B 20 Aug 1971 [28 Aug 1970 23 Feb 1971] 39171/71 Headings C7A and C7D A powdered steel comprises in weight percent- 0À6 to 5% carbon at least 10% of a carbide-forming addition 0 to 30% cobalt 0 to 10% aluminium balance iron and impurities including at least 0À15% oxygen. The carbide-forming addition consist of at least one of the following:- 0 to 30% chromium 0 to 20% molybdenum, tungsten or vanadium. 0 to 10% titanium, tantalum, niobium, zirconium or hafrinium; the total content of carbide-forming additions, cobalt and aluminium should not exceed 60%; the amount of carbon present should be more than 1À1 times the stochiometric amount necessary for forming carbides, and must also equal the total of 0À7 to 1À0 times the stochiometric carbon content plus 0À7 to 1À0 times the oxygen content of the powder. A preferred composition is 3À5 to 4À5% Cr, 3À5 to 5% Mo, 5 to 7% W, 2 to 4%V, 5 go 10% Co, 1À5 to 2À0% C, balance Fe and oxygen. If this powder is heated to a temperature of 900-1250‹C under vacuum, the carbon and oxygen combines so that the final oxygen content should be less than 0À05%. Sintering processes In an Example water-atomised steel powder of the above composition is pre-compacted in an enclosed capsule, heated to 115‹C. under vacuum and isostatically compressed at the same temperature. In alternative Examples the powder is first pressed in a removable rubber mould and heat treated under vacuum prior to placing in a capsule for isostatic compression: or the powder is cold-compacted to desired shape, heated in vacuum at 1150‹C. cooled covered with a protective layer (mainly water-glass) inductionheated to 1150‹C. in argon and forged in preheated die.
GB3917171A 1970-08-28 1971-08-20 High alloy steel powders and their consolidation into homogeneous tool steel Expired GB1313981A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE7011689A SE344968C (en) 1970-08-28 1970-08-28 POWDER MATERIAL FOR THE MANUFACTURE OF HIGH ALLOY STEEL WITH GOOD TURNING RESISTANCE AND HEAT HARDNESS
US11818671A 1971-02-23 1971-02-23

Publications (1)

Publication Number Publication Date
GB1313981A true GB1313981A (en) 1973-04-18

Family

ID=26655849

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3917171A Expired GB1313981A (en) 1970-08-28 1971-08-20 High alloy steel powders and their consolidation into homogeneous tool steel

Country Status (2)

Country Link
CA (1) CA953540A (en)
GB (1) GB1313981A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2937724A1 (en) * 1978-09-20 1980-04-03 Crucible Inc POWDER METALLURGICAL STEEL PRODUCT WITH A HIGH CONTENT OF VANADIUM CARBIDE
GB2151261A (en) * 1983-12-14 1985-07-17 Rolls Royce Recovery of machine swarthy hot isostatic pressing
DE3507332A1 (en) * 1985-03-01 1986-09-04 Seilstorfer GmbH & Co Metallurgische Verfahrenstechnik KG, 8092 Haag Steel matrix/sintered material composite
DE3508982A1 (en) * 1985-03-13 1986-09-18 Seilstorfer GmbH & Co Metallurgische Verfahrenstechnik KG, 8092 Haag Steel matrix/sintered material composite
GB2181745A (en) * 1985-08-28 1987-04-29 Avesta Nyby Powder Ab Hot-deformed powder metallurgy articles
GB2210894A (en) * 1987-10-10 1989-06-21 Brico Eng Sintered materials
EP0348380A1 (en) * 1988-06-21 1989-12-27 BÖHLER Gesellschaft m.b.H. Use of an iron-base alloy in the manufacture of sintered parts with a high corrosion resistance, a high wear resistance as well as a high toughness and compression strength, especially for use in the processing of synthetic materials
US20110101621A1 (en) * 2008-03-19 2011-05-05 Marcus Kennedy Wear-resistant component
EP2361704A1 (en) * 2010-02-26 2011-08-31 VBN Components AB Metal multiphase material and manufacturing method therefore
US20130315772A1 (en) * 2008-04-08 2013-11-28 Federal-Mogul Corporation Powder metal compositions for wear and temperature resistance applications and method of producing same
CN114480943A (en) * 2021-12-14 2022-05-13 湖南英捷高科技有限责任公司 Ultralow-carbon low-cobalt martensitic steel and preparation method thereof
CN114622122A (en) * 2022-03-04 2022-06-14 长沙市萨普新材料有限公司 High-niobium iron-based superhard material and preparation method thereof

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2937724A1 (en) * 1978-09-20 1980-04-03 Crucible Inc POWDER METALLURGICAL STEEL PRODUCT WITH A HIGH CONTENT OF VANADIUM CARBIDE
GB2151261A (en) * 1983-12-14 1985-07-17 Rolls Royce Recovery of machine swarthy hot isostatic pressing
DE3507332A1 (en) * 1985-03-01 1986-09-04 Seilstorfer GmbH & Co Metallurgische Verfahrenstechnik KG, 8092 Haag Steel matrix/sintered material composite
DE3508982A1 (en) * 1985-03-13 1986-09-18 Seilstorfer GmbH & Co Metallurgische Verfahrenstechnik KG, 8092 Haag Steel matrix/sintered material composite
GB2181745A (en) * 1985-08-28 1987-04-29 Avesta Nyby Powder Ab Hot-deformed powder metallurgy articles
GB2181745B (en) * 1985-08-28 1990-03-21 Avesta Nyby Powder Ab A process for the production of powder-metallurgy articles
GB2210894B (en) * 1987-10-10 1991-09-18 Brico Eng Sintered materials
GB2210894A (en) * 1987-10-10 1989-06-21 Brico Eng Sintered materials
EP0348380A1 (en) * 1988-06-21 1989-12-27 BÖHLER Gesellschaft m.b.H. Use of an iron-base alloy in the manufacture of sintered parts with a high corrosion resistance, a high wear resistance as well as a high toughness and compression strength, especially for use in the processing of synthetic materials
US20110101621A1 (en) * 2008-03-19 2011-05-05 Marcus Kennedy Wear-resistant component
US20130315772A1 (en) * 2008-04-08 2013-11-28 Federal-Mogul Corporation Powder metal compositions for wear and temperature resistance applications and method of producing same
US9162285B2 (en) * 2008-04-08 2015-10-20 Federal-Mogul Corporation Powder metal compositions for wear and temperature resistance applications and method of producing same
EP2361704A1 (en) * 2010-02-26 2011-08-31 VBN Components AB Metal multiphase material and manufacturing method therefore
CN114480943A (en) * 2021-12-14 2022-05-13 湖南英捷高科技有限责任公司 Ultralow-carbon low-cobalt martensitic steel and preparation method thereof
CN114622122A (en) * 2022-03-04 2022-06-14 长沙市萨普新材料有限公司 High-niobium iron-based superhard material and preparation method thereof

Also Published As

Publication number Publication date
CA953540A (en) 1974-08-27

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees