US3802875A - Oxidation resistant alloys - Google Patents
Oxidation resistant alloys Download PDFInfo
- 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
- Authority
- 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
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Classifications
-
- 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.
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 |
DD174235A DD107949A5 (fr) | 1972-10-24 | 1973-10-23 | |
GB4926773A GB1440835A (en) | 1972-10-24 | 1973-10-23 | Oxidation resistant alloys |
AT895973A AT329888B (de) | 1972-10-24 | 1973-10-23 | Schweissbare oxydationsbestandige legierung |
CH1493973A CH585796A5 (fr) | 1972-10-24 | 1973-10-23 | |
CS737273A CS204976B2 (en) | 1972-10-24 | 1973-10-23 | Meltable alloy with resistance to oxidation |
BR8241/73A BR7308241D0 (pt) | 1972-10-24 | 1973-10-23 | Liga soldavel resistente a oxidacao e artigo da liga |
SE7314378A SE390423B (sv) | 1972-10-24 | 1973-10-23 | Svetsbar oxidationsherdig koboltlegering |
HUCA356A HU166191B (fr) | 1972-10-24 | 1973-10-23 | |
FR7337797A FR2203884B1 (fr) | 1972-10-24 | 1973-10-23 | |
BE136967A BE806402A (fr) | 1972-10-24 | 1973-10-23 | Alliages resistant a l'oxydation |
IT70121/73A IT999670B (it) | 1972-10-24 | 1973-10-23 | Leca saldabile di cobalto resistente all ossidazione |
CA184,156A CA1000076A (en) | 1972-10-24 | 1973-10-24 | Oxidation resistant alloys |
JP11907573A JPS5733331B2 (fr) | 1972-10-24 | 1973-10-24 | |
LU68682A LU68682A1 (fr) | 1972-10-24 | 1973-10-24 | |
NL7314619A NL7314619A (fr) | 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 (fr) |
JP (1) | JPS5733331B2 (fr) |
AT (1) | AT329888B (fr) |
AU (1) | AU473828B2 (fr) |
BE (1) | BE806402A (fr) |
BR (1) | BR7308241D0 (fr) |
CA (1) | CA1000076A (fr) |
CH (1) | CH585796A5 (fr) |
CS (1) | CS204976B2 (fr) |
DD (1) | DD107949A5 (fr) |
DE (1) | DE2352704C2 (fr) |
FR (1) | FR2203884B1 (fr) |
GB (1) | GB1440835A (fr) |
HU (1) | HU166191B (fr) |
IT (1) | IT999670B (fr) |
LU (1) | LU68682A1 (fr) |
NL (1) | NL7314619A (fr) |
SE (1) | SE390423B (fr) |
ZA (1) | ZA737850B (fr) |
Cited By (6)
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 (fr) * | 1989-06-15 | 1990-12-27 | Medtronic, Inc. | Joints étanches de verre-métal et leur utilisation |
US5104755A (en) * | 1989-06-15 | 1992-04-14 | Medtronic, Inc. | Glass-metal seals |
EP1925683A1 (fr) * | 2005-09-15 | 2008-05-28 | Japan Science and Technology Agency | Alliage à base de cobalt ayant une résistance à la chaleur élevée et une résistance élevée et procédé servant à produire celui-ci |
Families Citing this family (1)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3418111A (en) * | 1966-10-27 | 1968-12-24 | Union Carbide Corp | Cobalt base alloy |
-
1972
- 1972-10-24 US US00299665A patent/US3802875A/en not_active Expired - Lifetime
-
1973
- 1973-10-08 ZA ZA737850A patent/ZA737850B/xx unknown
- 1973-10-20 DE DE2352704A patent/DE2352704C2/de not_active Expired
- 1973-10-22 AU AU61643/73A patent/AU473828B2/en not_active Expired
- 1973-10-23 IT IT70121/73A patent/IT999670B/it active
- 1973-10-23 SE SE7314378A patent/SE390423B/xx unknown
- 1973-10-23 AT AT895973A patent/AT329888B/de not_active IP Right Cessation
- 1973-10-23 CS CS737273A patent/CS204976B2/cs unknown
- 1973-10-23 DD DD174235A patent/DD107949A5/xx unknown
- 1973-10-23 GB GB4926773A patent/GB1440835A/en not_active Expired
- 1973-10-23 BR BR8241/73A patent/BR7308241D0/pt unknown
- 1973-10-23 HU HUCA356A patent/HU166191B/hu unknown
- 1973-10-23 FR FR7337797A patent/FR2203884B1/fr not_active Expired
- 1973-10-23 BE BE136967A patent/BE806402A/fr not_active IP Right Cessation
- 1973-10-23 CH CH1493973A patent/CH585796A5/xx not_active IP Right Cessation
- 1973-10-24 LU LU68682A patent/LU68682A1/xx unknown
- 1973-10-24 JP JP11907573A patent/JPS5733331B2/ja not_active Expired
- 1973-10-24 NL NL7314619A patent/NL7314619A/xx not_active Application Discontinuation
- 1973-10-24 CA CA184,156A patent/CA1000076A/en not_active Expired
Cited By (7)
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 (fr) * | 1989-06-15 | 1990-12-27 | Medtronic, Inc. | Joints étanches de verre-métal et leur utilisation |
US5104755A (en) * | 1989-06-15 | 1992-04-14 | Medtronic, Inc. | Glass-metal seals |
EP1925683A1 (fr) * | 2005-09-15 | 2008-05-28 | Japan Science and Technology Agency | Alliage à base de cobalt ayant une résistance à la chaleur élevée et une résistance élevée et procédé servant à produire celui-ci |
EP1925683A4 (fr) * | 2005-09-15 | 2012-08-22 | Japan Science & Tech Agency | Alliage à base de cobalt ayant une résistance à la chaleur élevée et une résistance élevée et procédé servant à produire celui-ci |
Also Published As
Publication number | Publication date |
---|---|
JPS5733331B2 (fr) | 1982-07-16 |
DD107949A5 (fr) | 1974-08-20 |
BE806402A (fr) | 1974-02-15 |
SE390423B (sv) | 1976-12-20 |
IT999670B (it) | 1976-03-10 |
AU6164373A (en) | 1975-04-24 |
ZA737850B (en) | 1974-09-25 |
HU166191B (fr) | 1975-02-28 |
GB1440835A (en) | 1976-06-30 |
LU68682A1 (fr) | 1974-03-25 |
FR2203884A1 (fr) | 1974-05-17 |
NL7314619A (fr) | 1974-04-26 |
DE2352704C2 (de) | 1984-08-23 |
AT329888B (de) | 1976-06-10 |
CA1000076A (en) | 1976-11-23 |
CS204976B2 (en) | 1981-04-30 |
DE2352704A1 (de) | 1974-04-25 |
AU473828B2 (en) | 1976-07-01 |
ATA895973A (de) | 1975-08-15 |
BR7308241D0 (pt) | 1974-06-27 |
FR2203884B1 (fr) | 1977-05-27 |
CH585796A5 (fr) | 1977-03-15 |
JPS4994517A (fr) | 1974-09-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
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 |