EP0083191A3 - Thermal mechanical treatment for enhancing high temperature properties of cast austenitic steel structures - Google Patents

Thermal mechanical treatment for enhancing high temperature properties of cast austenitic steel structures Download PDF

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Publication number
EP0083191A3
EP0083191A3 EP82306799A EP82306799A EP0083191A3 EP 0083191 A3 EP0083191 A3 EP 0083191A3 EP 82306799 A EP82306799 A EP 82306799A EP 82306799 A EP82306799 A EP 82306799A EP 0083191 A3 EP0083191 A3 EP 0083191A3
Authority
EP
European Patent Office
Prior art keywords
structures
high temperature
mechanical treatment
temperature
thermal mechanical
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.)
Withdrawn
Application number
EP82306799A
Other languages
German (de)
French (fr)
Other versions
EP0083191A2 (en
Inventor
Ruzica Petkovic-Luton
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.)
ExxonMobil Technology and Engineering Co
Original Assignee
Exxon Research and Engineering 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 Exxon Research and Engineering Co filed Critical Exxon Research and Engineering Co
Publication of EP0083191A2 publication Critical patent/EP0083191A2/en
Publication of EP0083191A3 publication Critical patent/EP0083191A3/en
Withdrawn legal-status Critical Current

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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

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  • 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

A thermal mechanical treatment for improving the high temperature properties of cast austenic heat resistant chromium-containing alloy steel structures is disclosed. The method comprises (a) heating the structures to at least the temperature at which chromium carbides go into solution, but below the temperature where incipient melting occurs; (b) maintaining the structures at such a temperature long enough so that at least 50% of the chromium carbides go into solution; (c) applying from about 15% to 60% plastic deformation by hot forming operations; and (d) cooling the structures to room temperature at such a rate to allow complete recrystallization of the grains to occur.
EP82306799A 1981-12-28 1982-12-20 Thermal mechanical treatment for enhancing high temperature properties of cast austenitic steel structures Withdrawn EP0083191A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US33465181A 1981-12-28 1981-12-28
US334651 1981-12-28

Publications (2)

Publication Number Publication Date
EP0083191A2 EP0083191A2 (en) 1983-07-06
EP0083191A3 true EP0083191A3 (en) 1985-04-03

Family

ID=23308159

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82306799A Withdrawn EP0083191A3 (en) 1981-12-28 1982-12-20 Thermal mechanical treatment for enhancing high temperature properties of cast austenitic steel structures

Country Status (3)

Country Link
EP (1) EP0083191A3 (en)
JP (1) JPS58117826A (en)
CA (1) CA1196555A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61272317A (en) * 1985-05-29 1986-12-02 Nippon Kokan Kk <Nkk> Manufacture of high strength austenitic stainless steel material at normal and high temperature range superior in corrosion resistance
JP2602015B2 (en) * 1986-08-30 1997-04-23 愛知製鋼株式会社 Stainless steel excellent in corrosion fatigue resistance and seawater resistance and method for producing the same
JPH0694057B2 (en) * 1987-12-12 1994-11-24 新日本製鐵株式會社 Method for producing austenitic stainless steel with excellent seawater resistance
CZ2008844A3 (en) 2008-12-24 2010-04-28 Servisbal Obaly S.R.O. Multifunctional insert

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2931744A (en) * 1957-08-26 1960-04-05 United States Pipe Foundry Method of grain refining centrifugal castings
US3780555A (en) * 1972-04-10 1973-12-25 Sargent Industries Method of making a pipe with refined grain structure
US4138279A (en) * 1976-03-01 1979-02-06 Kubota, Ltd. Method of producing stainless steel product
SU704997A1 (en) * 1975-04-25 1979-12-25 Днепропетровский Ордена Трудового Красного Знамени Металлургический Институт Method of processing chrome-nickel austenite cast steel tubes

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5131089B2 (en) * 1974-03-08 1976-09-04

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2931744A (en) * 1957-08-26 1960-04-05 United States Pipe Foundry Method of grain refining centrifugal castings
US3780555A (en) * 1972-04-10 1973-12-25 Sargent Industries Method of making a pipe with refined grain structure
SU704997A1 (en) * 1975-04-25 1979-12-25 Днепропетровский Ордена Трудового Красного Знамени Металлургический Институт Method of processing chrome-nickel austenite cast steel tubes
US4138279A (en) * 1976-03-01 1979-02-06 Kubota, Ltd. Method of producing stainless steel product

Also Published As

Publication number Publication date
JPS58117826A (en) 1983-07-13
EP0083191A2 (en) 1983-07-06
CA1196555A (en) 1985-11-12

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

Designated state(s): DE FR GB

PUAL Search report despatched

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AK Designated contracting states

Designated state(s): DE FR GB

17P Request for examination filed

Effective date: 19850905

17Q First examination report despatched

Effective date: 19861010

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19870221

RIN1 Information on inventor provided before grant (corrected)

Inventor name: PETKOVIC-LUTON, RUZICA