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GB1163967A - Stainless Steels and Process for their Manufacture - Google Patents

Stainless Steels and Process for their Manufacture

Info

Publication number
GB1163967A
GB1163967A GB58082/66A GB5808266A GB1163967A GB 1163967 A GB1163967 A GB 1163967A GB 58082/66 A GB58082/66 A GB 58082/66A GB 5808266 A GB5808266 A GB 5808266A GB 1163967 A GB1163967 A GB 1163967A
Authority
GB
United Kingdom
Prior art keywords
alloy
microns
iron
heating
grain size
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
GB58082/66A
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.)
IIT Research Institute
Original Assignee
IIT Research Institute
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 IIT Research Institute filed Critical IIT Research Institute
Publication of GB1163967A publication Critical patent/GB1163967A/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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • 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
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • 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%
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S75/00—Specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures
    • Y10S75/95—Consolidated metal powder compositions of >95% theoretical density, e.g. wrought

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Powder Metallurgy (AREA)

Abstract

1,163,967. Iron-base alloys; powder metallurgy; granulating. IIT RESEARCH INSTITUTE. Dec. 29, 1966 [Jan. 3, 1966], No. 58082/66. Headings C7A, C7D and C7X. An iron-base alloy consists, by weight, of Cr 14-16% Ni 6À5-7À75% Mo 2-3% A1 0À75-1À5% Mn up to 1% Si up to 1% C up to 0À09% S 0-0À03% Fe (and impurities) balance; the hardening phase of the alloy having a grain size less than 3 microns and being uniformly dispersed in the matrix which has a grain size less than 50 microns. The content of oxygen should be below 1, 000 p.p. m. and that of nitrogen below 100 p. p. m. The alloy is made by atomizing a melt with inert gas, the resulting particles being quenched in water. Consolidation of the particles is effected by encapsulating in mild steel cans and then sintering at 2550‹ -2690‹ F. ; or heating at 2190‹ F. and hammer-forging; or heating to 2200‹ F. and extruding.
GB58082/66A 1966-01-03 1966-12-29 Stainless Steels and Process for their Manufacture Expired GB1163967A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US51813066A 1966-01-03 1966-01-03

Publications (1)

Publication Number Publication Date
GB1163967A true GB1163967A (en) 1969-09-10

Family

ID=24062687

Family Applications (1)

Application Number Title Priority Date Filing Date
GB58082/66A Expired GB1163967A (en) 1966-01-03 1966-12-29 Stainless Steels and Process for their Manufacture

Country Status (5)

Country Link
US (1) US3522020A (en)
AT (1) AT294161B (en)
FR (1) FR1507139A (en)
GB (1) GB1163967A (en)
SE (1) SE340891B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2155048A (en) * 1984-02-29 1985-09-18 Gen Electric Apparatus and method for atomization of unstable melt streams
EP0252193A1 (en) * 1986-07-10 1988-01-13 Worl-Tech Limited Manufacture and consolidation of alloy metal powder billets

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH564092A5 (en) * 1970-07-16 1975-07-15 Deutsche Edelstahlwerke Ag
AU5364573A (en) * 1972-03-27 1974-09-26 Int Nickel Ltd Powder metallurgy forging
SE430904C (en) * 1980-05-13 1986-07-14 Asea Ab STAINLESS, FERRIT-AUSTENITIC STEEL MADE OF POWDER
SE450469B (en) * 1985-02-19 1987-06-29 Asea Stal Ab KIT ON PREPARATION OF A FORM CARBON OF A HIGH CHROME IRON ALLOY
JP2003003211A (en) * 2001-06-19 2003-01-08 Kanto Yakin Kogyo Co Ltd Continuous heat-treatment method for metal under argon atmosphere
CN113976897B (en) * 2021-10-09 2022-11-04 北京科技大学 Method for preparing P-containing high-strength stainless steel powder by two-flow atomization method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2958617A (en) * 1957-07-31 1960-11-01 Armco Steel Corp Method for hardening chromiumnickel stainless steel
US2958618A (en) * 1957-07-31 1960-11-01 Armco Steel Corp Method for hardening chromiumnickel stainless steel
US3071463A (en) * 1960-05-17 1963-01-01 Sylvania Electric Prod Method of producing sintered metal bodies
US3151978A (en) * 1960-12-30 1964-10-06 Armco Steel Corp Heat hardenable chromium-nickel-aluminum steel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2155048A (en) * 1984-02-29 1985-09-18 Gen Electric Apparatus and method for atomization of unstable melt streams
US4631013A (en) * 1984-02-29 1986-12-23 General Electric Company Apparatus for atomization of unstable melt streams
EP0252193A1 (en) * 1986-07-10 1988-01-13 Worl-Tech Limited Manufacture and consolidation of alloy metal powder billets

Also Published As

Publication number Publication date
AT294161B (en) 1971-11-10
FR1507139A (en) 1967-12-22
SE340891B (en) 1971-12-06
US3522020A (en) 1970-07-28

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee