US3802875A - Oxidation resistant alloys - Google Patents

Oxidation resistant alloys Download PDF

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Publication number
US3802875A
US3802875A US00299665A US29966572A US3802875A US 3802875 A US3802875 A US 3802875A US 00299665 A US00299665 A US 00299665A US 29966572 A US29966572 A US 29966572A US 3802875 A US3802875 A US 3802875A
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US
United States
Prior art keywords
percent
lanthanum
alloy
maximum
aluminum
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.)
Expired - Lifetime
Application number
US00299665A
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English (en)
Inventor
H Klein
R Herchenroeder
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.)
Haynes International Inc
Original Assignee
Cabot Corp
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 Cabot Corp filed Critical Cabot Corp
Priority to US00299665A priority Critical patent/US3802875A/en
Priority to ZA737850A priority patent/ZA737850B/xx
Priority to DE2352704A priority patent/DE2352704C2/de
Priority to AU61643/73A priority patent/AU473828B2/en
Priority to HUCA356A priority patent/HU166191B/hu
Priority to GB4926773A priority patent/GB1440835A/en
Priority to DD174235A priority patent/DD107949A5/xx
Priority to BE136967A priority patent/BE806402A/xx
Priority to CS737273A priority patent/CS204976B2/cs
Priority to CH1493973A priority patent/CH585796A5/xx
Priority to AT895973A priority patent/AT329888B/de
Priority to BR8241/73A priority patent/BR7308241D0/pt
Priority to SE7314378A priority patent/SE390423B/xx
Priority to IT70121/73A priority patent/IT999670B/it
Priority to FR7337797A priority patent/FR2203884B1/fr
Priority to LU68682A priority patent/LU68682A1/xx
Priority to JP11907573A priority patent/JPS5733331B2/ja
Priority to CA184,156A priority patent/CA1000076A/en
Priority to NL7314619A priority patent/NL7314619A/xx
Application granted granted Critical
Publication of US3802875A publication Critical patent/US3802875A/en
Assigned to HAYNES INTERNATINAL, INC. reassignment HAYNES INTERNATINAL, INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: CABOT CORPORATION
Assigned to BANK OF AMERICA NATIONAL TRUST AND SAVINGS ASSOCIATION reassignment BANK OF AMERICA NATIONAL TRUST AND SAVINGS ASSOCIATION SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HAYNES ACQUISITION CORPORATION
Anticipated expiration legal-status Critical
Assigned to BANK OF AMERICA NATIONAL TRUST AND SAVINGS ASSOCIATION reassignment BANK OF AMERICA NATIONAL TRUST AND SAVINGS ASSOCIATION RELEASE AND TERMINATION OF SECURITY AGREEMENT Assignors: HAYNES INTERNATIONAL, INC.
Expired - Lifetime legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C19/00—Alloys based on nickel or cobalt
    • C22C19/07—Alloys based on nickel or cobalt based on cobalt

Definitions

  • This invention relates to oxidation resistant alloys and particularly to improved oxidation resistant cobalt alloys specifically cobalt-base alloys containing a small, but effective, addition of lanthanum.
  • US. Pat. No. 3,418,11 l discloses a cobalt-base alloy containing lanthanum as a modifying element to In order to illustrate the unusual results obtained by our invention a series of heats were melted with varying amounts of lanthanum and aluminum. The heats were all prepared by air or vacuum induction melting followed by electroslag remelting to produce the final alloy. The various test samples thus obtained had the compositions set out in Table l hereafter.
  • alloys of this invention may be melted by the usual methods used in this art, we are able to obtain consistently better control of composition and of ultimate resistance to oxidation by melting the primary melt by either vacuum induction or are melting in air followed by an electroslag remelt step.
  • F 1G. 1 is a graph of average crack length versus lanthanum content in a 2 92 inch die block
  • FIG. 2 is a graph of average crack length versus lanthanum content in a 4 inch die block
  • FIG. 3 is a graph of Mils loss versus aluminum content at 2,100F. static oxidation test with various lanthanum contents.
  • HO. 4 is a graph of Weight loss versus final aluminum content at 20 00F. Dynamic Oxidation Test.
  • FIGS. 3 and 4 show that maintaining the aluminum content and the lanthanum content in the range here claimed, the oxidation resistance is markedly improved.
  • the combination of critical lanthanum content and aluminum content produces a surprisingly new alloy modification for welding fabrication of products subject to oxidation.
  • a weldable oxidation resistant alloy consisting essentially of by weight about 0.01 to 0.33 percent carbon, up to about 2 percent manganese, up to about 1 percent silicon, about 0.02 percent maximum phosphorus, about 0.015 percent maximum sulfur, about 18 to 30 percent chromium, about 8 to 30 percent nickel, about 8 to 18 percent tungsten, about 0.001 to 0.018 percent lanthanum, about 0.02 to 0.7 percent aluminum, up to about 0.02 percent boron,- up to about 10 percent iron and the balance to 61 percent maximum cobalt with usual impurities in ordinary amounts.
  • An alloy in accordance with claim 1 consisting essentially of by weight about 0.01 to 0.15 percent carbon, up to about 2 percent manganese, up to about 0.6 percent silicon, about 0.02 percent maximum phosphorus, about 0.015 percent maximum sulfur, about 19 to 28 percent chromium, about 10 to 25 percent nickel, about 12 to 18 percent tungsten, about 0.001 to 0.018 percent lanthanum, up to about 0.02 percent boron, up to about 5 percent iron, about 0.02 to 0.5 percent aluminum and the balance cobalt with usual impurities in ordinary amounts.
  • An alloy in accordance with claim 1 consisting essentially of by weight about 0.05 to 0.15 percent carbon, up to about 1.25 percent manganese, about 0.2 to 0.5 percent silicon, about 0.02 percent maximum phosphorus, about 0.015 percent maximum sulfur, about 20 to 24 percent chromium, about 20 to 24 percent nickel, about 13 to 16 percent tungsten, about 0.001 to 0.018 percent lanthanum, up to about 0.015 percent boron, up to about 3 percent iron, about 0.02 to 0.5 percent aluminum and the balance cobalt with usual impurities in ordinary amounts.
  • An alloy in accordance with claim 1 consisting essentially of by weight about 0.10 percent carbon, about 0.65 percent manganese, about 0.35 percent silicon, about 0.02 percent maximum phosphorus, about 0.015 percent maximum sulfur, about 22 percent chromium, about 22 percent nickel, about 14.5 percent tungsten, about 0.001 to 0.018 percent lanthanum, up to about 0.015 percent boron, about 0.02 to 0.5 percent aluminum, up to about 3 percent iron and the balance cobalt with usual impurities in ordinary amounts.
  • An alloy article characterized by resistance to weld cracking and oxidation and made up of an alloy consisting essentially of by weight about 0.01 to 0.33 percent carbon, up to about 2 percent manganese, up to about 1 percent silicon, about 0.02 percent maximum phosphorus, about 0.015 percent maximum sulfur, about 18 to 30 percent chromium, about 8 to 30 percent nickel, about 8 to 18 percent tungsten, about 0.001 to 0.018 percent lanthanum, about 0.02 to 0.7 percent aluminum, up to about 0.02 percent boron, up to about 10 percent iron and the balance to 61 percent maximum cobalt with usual impurities in ordinary amounts.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Arc Welding In General (AREA)
  • Heat Treatment Of Articles (AREA)
US00299665A 1972-10-24 1972-10-24 Oxidation resistant alloys Expired - Lifetime US3802875A (en)

Priority Applications (19)

Application Number Priority Date Filing Date Title
US00299665A US3802875A (en) 1972-10-24 1972-10-24 Oxidation resistant alloys
ZA737850A ZA737850B (en) 1972-10-24 1973-10-08 Oxidation resistant alloys
DE2352704A DE2352704C2 (de) 1972-10-24 1973-10-20 Schweißbare, oxidationsbeständige Kobaltlegierung
AU61643/73A AU473828B2 (en) 1972-10-24 1973-10-22 Oxidation resistant alloys
BR8241/73A BR7308241D0 (pt) 1972-10-24 1973-10-23 Liga soldavel resistente a oxidacao e artigo da liga
DD174235A DD107949A5 (it) 1972-10-24 1973-10-23
BE136967A BE806402A (fr) 1972-10-24 1973-10-23 Alliages resistant a l'oxydation
CS737273A CS204976B2 (en) 1972-10-24 1973-10-23 Meltable alloy with resistance to oxidation
CH1493973A CH585796A5 (it) 1972-10-24 1973-10-23
AT895973A AT329888B (de) 1972-10-24 1973-10-23 Schweissbare oxydationsbestandige legierung
HUCA356A HU166191B (it) 1972-10-24 1973-10-23
SE7314378A SE390423B (sv) 1972-10-24 1973-10-23 Svetsbar oxidationsherdig koboltlegering
IT70121/73A IT999670B (it) 1972-10-24 1973-10-23 Leca saldabile di cobalto resistente all ossidazione
FR7337797A FR2203884B1 (it) 1972-10-24 1973-10-23
GB4926773A GB1440835A (en) 1972-10-24 1973-10-23 Oxidation resistant alloys
LU68682A LU68682A1 (it) 1972-10-24 1973-10-24
JP11907573A JPS5733331B2 (it) 1972-10-24 1973-10-24
CA184,156A CA1000076A (en) 1972-10-24 1973-10-24 Oxidation resistant alloys
NL7314619A NL7314619A (it) 1972-10-24 1973-10-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00299665A US3802875A (en) 1972-10-24 1972-10-24 Oxidation resistant alloys

Publications (1)

Publication Number Publication Date
US3802875A true US3802875A (en) 1974-04-09

Family

ID=23155738

Family Applications (1)

Application Number Title Priority Date Filing Date
US00299665A Expired - Lifetime US3802875A (en) 1972-10-24 1972-10-24 Oxidation resistant alloys

Country Status (19)

Country Link
US (1) US3802875A (it)
JP (1) JPS5733331B2 (it)
AT (1) AT329888B (it)
AU (1) AU473828B2 (it)
BE (1) BE806402A (it)
BR (1) BR7308241D0 (it)
CA (1) CA1000076A (it)
CH (1) CH585796A5 (it)
CS (1) CS204976B2 (it)
DD (1) DD107949A5 (it)
DE (1) DE2352704C2 (it)
FR (1) FR2203884B1 (it)
GB (1) GB1440835A (it)
HU (1) HU166191B (it)
IT (1) IT999670B (it)
LU (1) LU68682A1 (it)
NL (1) NL7314619A (it)
SE (1) SE390423B (it)
ZA (1) ZA737850B (it)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4372377A (en) * 1981-03-16 1983-02-08 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Heat pipes containing alkali metal working fluid
US4459263A (en) * 1982-09-08 1984-07-10 Jeneric Industries, Inc. Cobalt-chromium dental alloys containing ruthenium and aluminum
US4530664A (en) * 1980-09-29 1985-07-23 Jeneric Industries, Inc. Cobalt-chromium alloys
EP0404435A1 (en) * 1989-06-15 1990-12-27 Medtronic, Inc. Glass-metal seals
US5104755A (en) * 1989-06-15 1992-04-14 Medtronic, Inc. Glass-metal seals
EP1925683A1 (en) * 2005-09-15 2008-05-28 Japan Science and Technology Agency Cobalt-base alloy with high heat resistance and high strength and process for producing the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5845345A (ja) * 1981-09-11 1983-03-16 Hitachi Ltd 耐熱疲労性の優れたガスタ−ビン用ノズル

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3418111A (en) * 1966-10-27 1968-12-24 Union Carbide Corp Cobalt base alloy

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4530664A (en) * 1980-09-29 1985-07-23 Jeneric Industries, Inc. Cobalt-chromium alloys
US4372377A (en) * 1981-03-16 1983-02-08 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Heat pipes containing alkali metal working fluid
US4459263A (en) * 1982-09-08 1984-07-10 Jeneric Industries, Inc. Cobalt-chromium dental alloys containing ruthenium and aluminum
EP0404435A1 (en) * 1989-06-15 1990-12-27 Medtronic, Inc. Glass-metal seals
US5104755A (en) * 1989-06-15 1992-04-14 Medtronic, Inc. Glass-metal seals
EP1925683A1 (en) * 2005-09-15 2008-05-28 Japan Science and Technology Agency Cobalt-base alloy with high heat resistance and high strength and process for producing the same
EP1925683A4 (en) * 2005-09-15 2012-08-22 Japan Science & Tech Agency COBALT-BASED ALLOY HAVING HIGH HEAT RESISTANCE AND HIGH STRENGTH, AND PROCESS FOR PRODUCING THE SAME

Also Published As

Publication number Publication date
CS204976B2 (en) 1981-04-30
ATA895973A (de) 1975-08-15
JPS4994517A (it) 1974-09-07
BE806402A (fr) 1974-02-15
JPS5733331B2 (it) 1982-07-16
HU166191B (it) 1975-02-28
AU473828B2 (en) 1976-07-01
GB1440835A (en) 1976-06-30
DE2352704C2 (de) 1984-08-23
CH585796A5 (it) 1977-03-15
SE390423B (sv) 1976-12-20
FR2203884A1 (it) 1974-05-17
FR2203884B1 (it) 1977-05-27
BR7308241D0 (pt) 1974-06-27
AU6164373A (en) 1975-04-24
AT329888B (de) 1976-06-10
ZA737850B (en) 1974-09-25
LU68682A1 (it) 1974-03-25
DD107949A5 (it) 1974-08-20
CA1000076A (en) 1976-11-23
IT999670B (it) 1976-03-10
DE2352704A1 (de) 1974-04-25
NL7314619A (it) 1974-04-26

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AS Assignment

Owner name: HAYNES INTERNATINAL, INC., 1020 WEST PARK AVENUE,

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:CABOT CORPORATION;REEL/FRAME:004770/0271

Effective date: 19870731

Owner name: HAYNES INTERNATINAL, INC.,INDIANA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CABOT CORPORATION;REEL/FRAME:004770/0271

Effective date: 19870731

AS Assignment

Owner name: BANK OF AMERICA NATIONAL TRUST AND SAVINGS ASSOCIA

Free format text: SECURITY INTEREST;ASSIGNOR:HAYNES ACQUISITION CORPORATION;REEL/FRAME:005159/0270

Effective date: 19890831

AS Assignment

Owner name: BANK OF AMERICA NATIONAL TRUST AND SAVINGS ASSOCIA

Free format text: RELEASE AND TERMINATION OF SECURITY AGREEMENT;ASSIGNOR:HAYNES INTERNATIONAL, INC.;REEL/FRAME:006668/0772

Effective date: 19930706