CA2466829A1 - Surface treatment of austenitic ni-fe-cr based alloys - Google Patents

Surface treatment of austenitic ni-fe-cr based alloys Download PDF

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Publication number
CA2466829A1
CA2466829A1 CA002466829A CA2466829A CA2466829A1 CA 2466829 A1 CA2466829 A1 CA 2466829A1 CA 002466829 A CA002466829 A CA 002466829A CA 2466829 A CA2466829 A CA 2466829A CA 2466829 A1 CA2466829 A1 CA 2466829A1
Authority
CA
Canada
Prior art keywords
austenitic
based alloys
heat treatment
surface deformation
depth
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
CA002466829A
Other languages
French (fr)
Other versions
CA2466829C (en
Inventor
David L. Limoges
Peter K. Lin
Gino Palumbo
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.)
Integran Technologies Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2466829A1 publication Critical patent/CA2466829A1/en
Application granted granted Critical
Publication of CA2466829C publication Critical patent/CA2466829C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/10—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
    • 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
    • C21D10/00—Modifying the physical properties by methods other than heat treatment or deformation
    • C21D10/005—Modifying the physical properties by methods other than heat treatment or deformation by laser shock processing
    • 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
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
    • C21D7/04—Modifying the physical properties of iron or steel by deformation by cold working of the surface
    • 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
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
    • C21D7/04—Modifying the physical properties of iron or steel by deformation by cold working of the surface
    • C21D7/06—Modifying the physical properties of iron or steel by deformation by cold working of the surface by shot-peening or the like
    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/50—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for welded joints

Landscapes

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

Abstract

A surface treatment process for enhancing the resistance to intergranular corrosion and intergranular cracking of components fabricated from austenitic Ni-Fe-Cr based alloys comprising the application of surface deformation to the component, to a depth in the range of 0.01 mm to 0.5 mm, for example by high intensity shot peening below the recrystallization temperature, followed by recrystallization heat treatment, preferably at solutionizing temperatures.
The surface deformation and annealing process can be repeated to further optimize the microstructure of the near-surface region. Following the final heat treatment, the process optionally comprises the application of further surface deformation (work) of reduced intensity, yielding a worked depth of between 0.005 mm to 0.01 mm, to impart residual compression in the near surface region to further enhance cracking resistance.
CA002466829A 2001-11-23 2001-11-23 Surface treatment of austenitic ni-fe-cr based alloys Expired - Fee Related CA2466829C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CA2001/001677 WO2003046242A1 (en) 2001-11-23 2001-11-23 Surface treatment of austenitic ni-fe-cr based alloys

Publications (2)

Publication Number Publication Date
CA2466829A1 true CA2466829A1 (en) 2003-06-05
CA2466829C CA2466829C (en) 2009-10-06

Family

ID=4143177

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002466829A Expired - Fee Related CA2466829C (en) 2001-11-23 2001-11-23 Surface treatment of austenitic ni-fe-cr based alloys

Country Status (7)

Country Link
EP (1) EP1456430A1 (en)
JP (1) JP2005510627A (en)
KR (1) KR20040060985A (en)
AU (1) AU2002220411A1 (en)
CA (1) CA2466829C (en)
MX (1) MXPA04004796A (en)
WO (1) WO2003046242A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006062348B4 (en) * 2006-12-22 2016-10-06 Mitsubishi Hitachi Power Systems Europe Gmbh Surface blasted steam generator components or power plant components
JP5342991B2 (en) * 2009-12-18 2013-11-13 本田技研工業株式会社 Manufacturing method of forged products
JP6434729B2 (en) * 2014-07-16 2018-12-05 三菱日立パワーシステムズ株式会社 Ni-based alloy tube manufacturing method, Ni-based alloy high-frequency heated bending tube manufacturing method, Ni-based alloy welded tube manufacturing method, and boiler steam tube manufacturing method
GB201500713D0 (en) 2015-01-16 2015-03-04 Cummins Ltd A method for manufacturing a turbine wheel

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3844846A (en) * 1973-06-01 1974-10-29 Rockwell International Corp Desensitization of alloys to intergranular corrosion
JPS5913057A (en) * 1982-07-13 1984-01-23 Toshiba Corp Manufacture of machine parts made of precipitation hardening alloy
JPS59107068A (en) * 1982-12-10 1984-06-21 Hitachi Ltd Treatment in weld zone of nickel alloy
DE3664930D1 (en) * 1985-03-15 1989-09-14 Bbc Brown Boveri & Cie Process for enhancing the oxidation and corrosion resistance of a component made from a dispersion-hardened superalloy by means of a surface treatment
JPS6353212A (en) * 1986-08-22 1988-03-07 Babcock Hitachi Kk Treatment of stainless steel tube body for existing boiler
US5932120A (en) * 1997-12-18 1999-08-03 General Electric Company Laser shock peening using low energy laser
JP2000265249A (en) * 1999-03-16 2000-09-26 Hitachi Ltd Austenitic alloy structure excellent in intergranular corrosion resistance and its production
US6344097B1 (en) * 2000-05-26 2002-02-05 Integran Technologies Inc. Surface treatment of austenitic Ni-Fe-Cr-based alloys for improved resistance to intergranular-corrosion and-cracking

Also Published As

Publication number Publication date
AU2002220411A1 (en) 2003-06-10
WO2003046242A1 (en) 2003-06-05
CA2466829C (en) 2009-10-06
KR20040060985A (en) 2004-07-06
JP2005510627A (en) 2005-04-21
EP1456430A1 (en) 2004-09-15
MXPA04004796A (en) 2004-08-11

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Effective date: 20171123