GB1023132A - Process of producing super strength steel bodies - Google Patents

Process of producing super strength steel bodies

Info

Publication number
GB1023132A
GB1023132A GB3274264A GB3274264A GB1023132A GB 1023132 A GB1023132 A GB 1023132A GB 3274264 A GB3274264 A GB 3274264A GB 3274264 A GB3274264 A GB 3274264A GB 1023132 A GB1023132 A GB 1023132A
Authority
GB
United Kingdom
Prior art keywords
cooling
temperature
alloy
deformation
liquid nitrogen
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
GB3274264A
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.)
Republic Steel Corp
Original Assignee
Republic Steel Corp
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 Republic Steel Corp filed Critical Republic Steel Corp
Publication of GB1023132A publication Critical patent/GB1023132A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/005—Modifying the physical properties by deformation combined with, or followed by, heat treatment of ferrous alloys
    • 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
    • C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
    • C22C38/105—Ferrous alloys, e.g. steel alloys containing cobalt containing Co and Ni

Abstract

<PICT:1023132/C6-C7/1> A hardenable steel alloy body containing at least 0.15% C is strengthened by austenitizing below its melting point, e.g. at 1475-1500 DEG F., mechanically deforming the body by more than 10% while at a temperature above that of the upper nose of the TTT curve characteristic of the alloy composition e.g. above 1200 DEG F., which nose represents the start of transformation of austenite into other products (ferrite, pearlite or bainite), and completing the deformation without isothermal transformation, then cooling the body to transform to martensite e.g. by rapidly cooling to room temperature and then further cooling to the temperature of a liquefied gas, e.g. liquid nitrogen, oxygen or CO2. Thereafter the alloy may be tempered at 600 DEG F. prior to again cooling to the temperature of liquid nitrogen. Deformation may be effected by forging, rolling, extruding or drawing. Examples of alloy compositions are identical to those specified in the original Specification.
GB3274264A 1962-01-26 1963-01-07 Process of producing super strength steel bodies Expired GB1023132A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US16907662A 1962-01-26 1962-01-26

Publications (1)

Publication Number Publication Date
GB1023132A true GB1023132A (en) 1966-03-23

Family

ID=22614179

Family Applications (2)

Application Number Title Priority Date Filing Date
GB3274264A Expired GB1023132A (en) 1962-01-26 1963-01-07 Process of producing super strength steel bodies
GB66163A Expired GB1023131A (en) 1962-01-26 1963-01-07 High strength steel alloy compositions and process of producing super strength steel alloy body

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB66163A Expired GB1023131A (en) 1962-01-26 1963-01-07 High strength steel alloy compositions and process of producing super strength steel alloy body

Country Status (3)

Country Link
DE (1) DE1267853C2 (en)
GB (2) GB1023132A (en)
LU (1) LU42983A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3272897A1 (en) * 2016-03-23 2018-01-24 Rolls-Royce plc Nanocrystalline bainitic steels, shafts, gas turbine engines, and methods of manufacturing nanocrystalline bainitic steels

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61127815A (en) * 1984-11-26 1986-06-16 Nippon Steel Corp Production of high arrest steel containing ni

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1082372A (en) * 1952-08-22 1954-12-29 Hadfields Ltd Austenitic steels
GB931961A (en) * 1959-01-31 1963-07-24 Birmingham Small Arms Co Ltd Improvements in or relating to metal powders and articles produced therefrom

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3272897A1 (en) * 2016-03-23 2018-01-24 Rolls-Royce plc Nanocrystalline bainitic steels, shafts, gas turbine engines, and methods of manufacturing nanocrystalline bainitic steels
US10457996B2 (en) 2016-03-23 2019-10-29 Rolls-Royce Plc Nanocrystalline bainitic steels, shafts, gas turbine engines, and methods of manufacturing nanocrystalline bainitic steels

Also Published As

Publication number Publication date
DE1267853B (en) 1973-10-11
GB1023131A (en) 1966-03-23
DE1267853C2 (en) 1973-10-11
LU42983A1 (en) 1963-03-08

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