CA2466829A1 - Surface treatment of austenitic ni-fe-cr based alloys - Google Patents
Surface treatment of austenitic ni-fe-cr based alloys Download PDFInfo
- 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
Links
- 229910045601 alloy Inorganic materials 0.000 title abstract 2
- 239000000956 alloy Substances 0.000 title abstract 2
- 238000004381 surface treatment Methods 0.000 title abstract 2
- 238000000034 method Methods 0.000 abstract 3
- 238000005336 cracking Methods 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- 238000001953 recrystallisation Methods 0.000 abstract 2
- 229910017060 Fe Cr Inorganic materials 0.000 abstract 1
- 229910002544 Fe-Cr Inorganic materials 0.000 abstract 1
- 238000000137 annealing Methods 0.000 abstract 1
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 238000005480 shot peening Methods 0.000 abstract 1
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.
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.
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)
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)
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 |
-
2001
- 2001-11-23 AU AU2002220411A patent/AU2002220411A1/en not_active Abandoned
- 2001-11-23 JP JP2003547670A patent/JP2005510627A/en active Pending
- 2001-11-23 CA CA002466829A patent/CA2466829C/en not_active Expired - Fee Related
- 2001-11-23 KR KR10-2004-7007789A patent/KR20040060985A/en not_active Application Discontinuation
- 2001-11-23 EP EP01274801A patent/EP1456430A1/en not_active Withdrawn
- 2001-11-23 MX MXPA04004796A patent/MXPA04004796A/en active IP Right Grant
- 2001-11-23 WO PCT/CA2001/001677 patent/WO2003046242A1/en not_active Application Discontinuation
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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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |
Effective date: 20171123 |