GB1089935A - Method of strengthening alloy steel - Google Patents

Method of strengthening alloy steel

Info

Publication number
GB1089935A
GB1089935A GB2403066A GB2403066A GB1089935A GB 1089935 A GB1089935 A GB 1089935A GB 2403066 A GB2403066 A GB 2403066A GB 2403066 A GB2403066 A GB 2403066A GB 1089935 A GB1089935 A GB 1089935A
Authority
GB
United Kingdom
Prior art keywords
alloy steel
give
strengthening
steel
cooling
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
GB2403066A
Inventor
Morse Hill
Stephen Joseph Matas
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
Priority to GB2403066A priority Critical patent/GB1089935A/en
Publication of GB1089935A publication Critical patent/GB1089935A/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
    • C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
    • C22C38/105—Ferrous alloys, e.g. steel alloys containing cobalt containing Co and Ni
    • 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

Abstract

A method of strengthening an alloy steel, which quenches to martensite from the austenitic state, comprises austenitizing it, reducing the sectional dimensions thereof by at least 10% by plastic deformation conducted above the nose of the TTT curve thereof to impart a worked austenite structure and immediately rapidly cooling it so that no appreciable amount of higher temperature transformation products is formed. The cooling may be sufficiently low to give a martensitic structure or it may be such as to give a bainitic structure which will require an isothermal treatment. The body may be tempered at 400-1000 DEG F. The application of this method to the steel of Specification 1,089,934 is also disclosed.
GB2403066A 1964-10-28 1964-10-28 Method of strengthening alloy steel Expired GB1089935A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2403066A GB1089935A (en) 1964-10-28 1964-10-28 Method of strengthening alloy steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2403066A GB1089935A (en) 1964-10-28 1964-10-28 Method of strengthening alloy steel

Publications (1)

Publication Number Publication Date
GB1089935A true GB1089935A (en) 1967-11-08

Family

ID=10205266

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2403066A Expired GB1089935A (en) 1964-10-28 1964-10-28 Method of strengthening alloy steel

Country Status (1)

Country Link
GB (1) GB1089935A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010007297A1 (en) * 2008-07-15 2010-01-21 Aubert & Duval Hardened martensitic steel having a low cobalt content, process for manufacturing a part from this steel, and part thus obtained
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

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010007297A1 (en) * 2008-07-15 2010-01-21 Aubert & Duval Hardened martensitic steel having a low cobalt content, process for manufacturing a part from this steel, and part thus obtained
FR2933990A1 (en) * 2008-07-15 2010-01-22 Aubert & Duval Sa LOW-COBALT HARDENED CURED MARTENSITIC STEEL, METHOD FOR MANUFACTURING A WORKPIECE THEREFROM, AND PIECE OBTAINED THEREBY
CN102131947A (en) * 2008-07-15 2011-07-20 奥贝尔&杜瓦尔公司 Hardened martensitic steel having low cobalt content, process for manufacturing part from this steel, and parts thus obtained
RU2497974C2 (en) * 2008-07-15 2013-11-10 Обер Э Дюваль Hardened martensitic steel with low content of cobalt, method for making part from that steel, and part obtained by means of above said method
US9175370B2 (en) 2008-07-15 2015-11-03 Aubert & Duval Hardened martensitic steel having a low cobalt content, process for manufacturing a part from steel, and part thus obtained
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

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