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FR2359901A1 - Aciers combinant la solidite et l'usinabilite et leur procede d'obtention par traitement thermique - Google Patents

Aciers combinant la solidite et l'usinabilite et leur procede d'obtention par traitement thermique

Info

Publication number
FR2359901A1
FR2359901A1 FR7722712A FR7722712A FR2359901A1 FR 2359901 A1 FR2359901 A1 FR 2359901A1 FR 7722712 A FR7722712 A FR 7722712A FR 7722712 A FR7722712 A FR 7722712A FR 2359901 A1 FR2359901 A1 FR 2359901A1
Authority
FR
France
Prior art keywords
ferrite
workability
thermal treatment
austenite
mixture
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.)
Granted
Application number
FR7722712A
Other languages
English (en)
Other versions
FR2359901B1 (fr
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.)
Lasalle Steel Co
Original Assignee
Lasalle Steel Co
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 Lasalle Steel Co filed Critical Lasalle Steel Co
Publication of FR2359901A1 publication Critical patent/FR2359901A1/fr
Application granted granted Critical
Publication of FR2359901B1 publication Critical patent/FR2359901B1/fr
Granted 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

L'invention concerne l'industrie de la sidérurgie. L'acier est partiellement austénitisé pour obtenir un mélange de ferrite et d'austénite qui est trempé à une température intermédiaire pour rendre l'austénité métastable, la vitesse de la trempe étant suffisante pour empêcher la transformation de l'austénite en ferrite et perlite, puis l'acier trempé est façonné à une température pouvant aller jusqu'à la temperature maximale à laquelle la bainite peut exister, le mélange de ferrite et d'austénite étant transformé en un mélange de ferrite et de bainite, possédant une usinabilité, une résistance et une solidité élevées. Application notamment à la fabrication d'éléments fonctionnels de machines.
FR7722712A 1976-07-29 1977-07-25 Aciers combinant la solidite et l'usinabilite et leur procede d'obtention par traitement thermique Granted FR2359901A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/709,626 US4088511A (en) 1976-07-29 1976-07-29 Steels combining toughness and machinability

Publications (2)

Publication Number Publication Date
FR2359901A1 true FR2359901A1 (fr) 1978-02-24
FR2359901B1 FR2359901B1 (fr) 1984-06-01

Family

ID=24850658

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7722712A Granted FR2359901A1 (fr) 1976-07-29 1977-07-25 Aciers combinant la solidite et l'usinabilite et leur procede d'obtention par traitement thermique

Country Status (16)

Country Link
US (1) US4088511A (fr)
JP (1) JPS5317519A (fr)
AU (1) AU523319B2 (fr)
BE (1) BE857283A (fr)
BR (1) BR7704969A (fr)
CA (1) CA1092861A (fr)
CH (1) CH637162A5 (fr)
DE (1) DE2734129A1 (fr)
ES (1) ES461164A1 (fr)
FR (1) FR2359901A1 (fr)
GB (1) GB1584057A (fr)
IT (1) IT1085619B (fr)
LU (1) LU77849A1 (fr)
MX (1) MX4856E (fr)
NL (1) NL7708169A (fr)
SE (1) SE437384B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0407275A1 (fr) * 1989-07-07 1991-01-09 Jacques Gautier Procédé de fabrication de pièces à hautes caractéristiques mécaniques à partir d'acier non traité
US5328531A (en) * 1989-07-07 1994-07-12 Jacques Gautier Process for the manufacture of components in treated steel

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4159218A (en) * 1978-08-07 1979-06-26 National Steel Corporation Method for producing a dual-phase ferrite-martensite steel strip
US4426235A (en) 1981-01-26 1984-01-17 Kabushiki Kaisha Kobe Seiko Sho Cold-rolled high strength steel plate with composite steel structure of high r-value and method for producing same
US4466842A (en) * 1982-04-03 1984-08-21 Nippon Steel Corporation Ferritic steel having ultra-fine grains and a method for producing the same
AU561976B2 (en) * 1982-12-09 1987-05-21 Regents Of The University Of California, The High strength, low carbon, dual phase steel rods and wires and process for making same
US4563222A (en) * 1983-06-29 1986-01-07 Sugita Wire Mfg. Co., Ltd. High strength bolt and method of producing same
US4613385A (en) * 1984-08-06 1986-09-23 Regents Of The University Of California High strength, low carbon, dual phase steel rods and wires and process for making same
US4720307A (en) * 1985-05-17 1988-01-19 Nippon Kokan Kabushiki Kaisha Method for producing high strength steel excellent in properties after warm working
JPS6228284U (fr) * 1985-07-30 1987-02-20
US5542995A (en) * 1992-02-19 1996-08-06 Reilly; Robert Method of making steel strapping and strip and strapping and strip
US5292384A (en) * 1992-07-17 1994-03-08 Martin Marietta Energy Systems, Inc. Cr-W-V bainitic/ferritic steel with improved strength and toughness and method of making
SE521771C2 (sv) 1998-03-16 2003-12-02 Ovako Steel Ab Sätt att tillverka komponenter av stål
US20110232472A1 (en) * 2010-03-25 2011-09-29 General Atomics Bar armor system for protecting against rocket-propelled grenades
DE102012006941B4 (de) * 2012-03-30 2013-10-17 Salzgitter Flachstahl Gmbh Verfahren zur Herstellung eines Bauteils aus Stahl durch Warmumformen
CN103993139B (zh) * 2014-06-13 2016-05-11 四川法拉特不锈钢铸造有限公司 一种提高调质钢冲击韧性的方法
US10400320B2 (en) 2015-05-15 2019-09-03 Nucor Corporation Lead free steel and method of manufacturing
US20230279555A1 (en) * 2022-03-02 2023-09-07 Halliburton Energy Services, Inc. High-Pressure, Low-Temperature Coating For Hydrogen Service Environments

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2097878A (en) * 1934-01-15 1937-11-02 Grabe Alf Gerhard Antifriction bearing and method of manufacturing the same
GB782356A (en) * 1954-01-27 1957-09-04 Reginald Genders Improvements in or relating to the manufacture of steel bars
US2881107A (en) * 1956-10-22 1959-04-07 Lasalle Steel Co Austempered, cold-finished steels
US3240634A (en) * 1964-07-23 1966-03-15 Lasalle Steel Co Steels and improved method of manufacture
FR1473640A (fr) * 1966-03-31 1967-03-17 United States Steel Corp Traitement thermomécanique de l'acier
US3340102A (en) * 1962-05-15 1967-09-05 Manlabs Inc Metal process and article

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3423252A (en) * 1965-04-01 1969-01-21 United States Steel Corp Thermomechanical treatment of steel
US3444008A (en) * 1966-05-09 1969-05-13 William R Keough Controlled atmosphere processing
US3806378A (en) * 1972-12-20 1974-04-23 Bethlehem Steel Corp As-worked bainitic ferrous alloy and method
US3908431A (en) * 1974-05-07 1975-09-30 Lasalle Steel Co Steels and method for production of same

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2097878A (en) * 1934-01-15 1937-11-02 Grabe Alf Gerhard Antifriction bearing and method of manufacturing the same
GB782356A (en) * 1954-01-27 1957-09-04 Reginald Genders Improvements in or relating to the manufacture of steel bars
US2881107A (en) * 1956-10-22 1959-04-07 Lasalle Steel Co Austempered, cold-finished steels
US3340102A (en) * 1962-05-15 1967-09-05 Manlabs Inc Metal process and article
US3240634A (en) * 1964-07-23 1966-03-15 Lasalle Steel Co Steels and improved method of manufacture
FR1473640A (fr) * 1966-03-31 1967-03-17 United States Steel Corp Traitement thermomécanique de l'acier

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0407275A1 (fr) * 1989-07-07 1991-01-09 Jacques Gautier Procédé de fabrication de pièces à hautes caractéristiques mécaniques à partir d'acier non traité
FR2649415A1 (fr) * 1989-07-07 1991-01-11 Gautier Jacques Procede de fabrication de pieces a hautes caracteristiques mecaniques a partir d'acier non traite
US5328531A (en) * 1989-07-07 1994-07-12 Jacques Gautier Process for the manufacture of components in treated steel

Also Published As

Publication number Publication date
CH637162A5 (de) 1983-07-15
SE437384B (sv) 1985-02-25
AU2717877A (en) 1979-01-25
FR2359901B1 (fr) 1984-06-01
GB1584057A (en) 1981-02-04
DE2734129A1 (de) 1978-02-02
CA1092861A (fr) 1981-01-06
MX4856E (es) 1982-11-04
IT1085619B (it) 1985-05-28
SE7708662L (sv) 1978-01-30
NL7708169A (nl) 1978-01-31
AU523319B2 (en) 1982-07-22
US4088511A (en) 1978-05-09
BR7704969A (pt) 1978-04-25
LU77849A1 (fr) 1978-02-02
ES461164A1 (es) 1978-12-01
JPS5317519A (en) 1978-02-17
BE857283A (fr) 1977-11-14

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Legal Events

Date Code Title Description
ST Notification of lapse