US2061370A - Heat resisting article - Google Patents

Heat resisting article Download PDF

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Publication number
US2061370A
US2061370A US735A US73535A US2061370A US 2061370 A US2061370 A US 2061370A US 735 A US735 A US 735A US 73535 A US73535 A US 73535A US 2061370 A US2061370 A US 2061370A
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United States
Prior art keywords
heat resisting
aluminum
metals
cerium
iron
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US735A
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Rohn Wilhelm
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    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C24/00—Coating starting from inorganic powder
    • C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat

Definitions

  • alloys aresuitable containing besides iron aluminum 0.1 to 11.5%, chromium 0 to 30% and a metal or metals or the rare earths, especially cerium 0.05
  • the metals of the rare earths favorably influence the durability and the life of the alumle num-iron or chromium-aluminum-iron alloys which in themselves are already highly resistive to heat. durability, i. e. the time required until burning out at 1200 C. of an alloy consisting of chromium a 30%, aluminum 5%, remainder iron, could be trebled by the addition of 0.2% cerium.
  • the cerium may preferably be added in the 0 form of the so-called cerium mixed metal containing, besides cerium, other metals of rare earths invarious proportions, for instance, lanthanum, dysprosium.
  • the quantity of the rare earth metals preferl5 ably amounts to 0.05 to 2%.
  • the rare earth metals are preferably added ashort time before casting-in order to reduce as (are: p ssible the waste of these metals.
  • the rarev earth metals may be introduced into-the 20 or into the casting-jet.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Materials For Medical Uses (AREA)

Description

Patented Nov. 1 7, 1 936 UNITED STATES PATENT omca 2,061,310 I near nasrsrma ARTICLE Wilhelm Rohn, Hanau-on-the-Main, Germany No Drawing. Application January '1, 1935, Serial No. 735. In Germany January 18, 1934 Z-Claims. (Cl. 75 -124) 0 which hitherto were generally used for heating elements however their workability with aluminum contents exceeding 6% is unsatisfactory. It has been attempted to diminish the grain size and thereby to improve the workabilityofl these alloys by adding thereto certain elements such as titanium, zirconium or cobalt. However all these additions do not improve the heatfresijst ing qualities of the alloys because they det M 7 rate the dense mixture of aluminum and. chro' v um oxide firmly adhering to the surfaces of heating elements and produce pulverulent and brittle oxides. V
Numerous experiments of. the inventor have shown that for the production of elements for which a high resistivity to heat is required, even after they are worked and have been exposed to elevated temperatures for a long while, alloys aresuitable containing besides iron aluminum 0.1 to 11.5%, chromium 0 to 30% and a metal or metals or the rare earths, especially cerium 0.05
to 2%. The metals of the rare earths favorably influence the durability and the life of the alumle num-iron or chromium-aluminum-iron alloys which in themselves are already highly resistive to heat. durability, i. e. the time required until burning out at 1200 C. of an alloy consisting of chromium a 30%, aluminum 5%, remainder iron, could be trebled by the addition of 0.2% cerium.
The cerium may preferably be added in the 0 form of the so-called cerium mixed metal containing, besides cerium, other metals of rare earths invarious proportions, for instance, lanthanum, dysprosium.
The quantity of the rare earth metals preferl5 ably amounts to 0.05 to 2%. I
The rare earth metals are preferably added ashort time before casting-in order to reduce as (are: p ssible the waste of these metals. The rarev earth metals may be introduced into-the 20 or into the casting-jet.
I claim:--
1.-.-Heat resisting articles 1n wrought condition containing aluminum 0.1 to 11.5%, chromium up to 3d% and metals of the rare earths 0.05 to 2%,
the remainder being substantially iron.
2. Heat resisting articles in wrought condition containing aluminum 0.1 to11.5%, chromium up to and cerium 0.05 to 2%, the remainder being-substantially iron.
v WILHELM ROI-IN.
For instance, it was found that the 5
US735A 1934-01-18 1935-01-07 Heat resisting article Expired - Lifetime US2061370A (en)

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2768915A (en) * 1954-11-12 1956-10-30 Edward A Gaughler Ferritic alloys and methods of making and fabricating same
US2813789A (en) * 1952-04-08 1957-11-19 Glaser Louis Permanent magnet alloys
US3027252A (en) * 1959-09-29 1962-03-27 Gen Electric Oxidation resistant iron-chromium alloy
US3293007A (en) * 1965-11-29 1966-12-20 Carl S Wukusick Steam corrosion-resistant iron-chromium-aluminum-yttrium alloys and process for making same
US3298826A (en) * 1964-04-06 1967-01-17 Carl S Wukusick Embrittlement-resistant iron-chromium-aluminum-yttrium alloys
EP0034133A1 (en) * 1980-02-06 1981-08-19 Bulten-Kanthal AB Electrical heating element
EP0091526A2 (en) * 1982-04-12 1983-10-19 Allegheny Ludlum Corporation Iron-chromium-aluminium alloy and article and method therefor
DE3726073C1 (en) * 1987-08-06 1988-07-14 Thyssen Edelstahlwerke Ag Process for the production of thin-walled semi-finished products and their uses
DE3726072A1 (en) * 1987-08-06 1989-02-16 Thyssen Edelstahlwerke Ag Soldering method
DE3726075C1 (en) * 1987-08-06 1989-03-02 Thyssen Edelstahlwerke Ag Method of soldering steel parts and of producing catalyst supports, heat exchangers and soot filters
DE3726076C1 (en) * 1987-08-06 1989-03-09 Thyssen Edelstahlwerke Ag Filter body for filtering out solid particles with diameters predominantly smaller than 5 mum from flowing fluids and process for its production
US4870046A (en) * 1987-04-24 1989-09-26 Nippon Steel Corporation Rolled high aluminum stainless steel foil for use as a substrate for a catalyst carrier
US4904540A (en) * 1986-04-21 1990-02-27 Kawasaki Steel Corp. Fe-Cr-Al stainless steel having high oxidation resistance and spalling resistance and Fe-Cr-Al steel for catalyst substrate of catalytic converter
US5578265A (en) * 1992-09-08 1996-11-26 Sandvik Ab Ferritic stainless steel alloy for use as catalytic converter material

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2813789A (en) * 1952-04-08 1957-11-19 Glaser Louis Permanent magnet alloys
US2768915A (en) * 1954-11-12 1956-10-30 Edward A Gaughler Ferritic alloys and methods of making and fabricating same
US3027252A (en) * 1959-09-29 1962-03-27 Gen Electric Oxidation resistant iron-chromium alloy
US3298826A (en) * 1964-04-06 1967-01-17 Carl S Wukusick Embrittlement-resistant iron-chromium-aluminum-yttrium alloys
US3293007A (en) * 1965-11-29 1966-12-20 Carl S Wukusick Steam corrosion-resistant iron-chromium-aluminum-yttrium alloys and process for making same
EP0034133A1 (en) * 1980-02-06 1981-08-19 Bulten-Kanthal AB Electrical heating element
EP0091526A2 (en) * 1982-04-12 1983-10-19 Allegheny Ludlum Corporation Iron-chromium-aluminium alloy and article and method therefor
EP0091526B1 (en) * 1982-04-12 1987-08-12 Allegheny Ludlum Corporation Iron-chromium-aluminium alloy and article and method therefor
US4904540A (en) * 1986-04-21 1990-02-27 Kawasaki Steel Corp. Fe-Cr-Al stainless steel having high oxidation resistance and spalling resistance and Fe-Cr-Al steel for catalyst substrate of catalytic converter
US4870046A (en) * 1987-04-24 1989-09-26 Nippon Steel Corporation Rolled high aluminum stainless steel foil for use as a substrate for a catalyst carrier
DE3726073C1 (en) * 1987-08-06 1988-07-14 Thyssen Edelstahlwerke Ag Process for the production of thin-walled semi-finished products and their uses
DE3726072A1 (en) * 1987-08-06 1989-02-16 Thyssen Edelstahlwerke Ag Soldering method
DE3726075C1 (en) * 1987-08-06 1989-03-02 Thyssen Edelstahlwerke Ag Method of soldering steel parts and of producing catalyst supports, heat exchangers and soot filters
DE3726076C1 (en) * 1987-08-06 1989-03-09 Thyssen Edelstahlwerke Ag Filter body for filtering out solid particles with diameters predominantly smaller than 5 mum from flowing fluids and process for its production
US5578265A (en) * 1992-09-08 1996-11-26 Sandvik Ab Ferritic stainless steel alloy for use as catalytic converter material

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