US3850622A - High strength zinc alloys - Google Patents
High strength zinc alloys Download PDFInfo
- Publication number
- US3850622A US3850622A US00358275A US35827573A US3850622A US 3850622 A US3850622 A US 3850622A US 00358275 A US00358275 A US 00358275A US 35827573 A US35827573 A US 35827573A US 3850622 A US3850622 A US 3850622A
- Authority
- US
- United States
- Prior art keywords
- percent
- weight
- zinc
- alloys
- 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
- C22C18/00—Alloys based on zinc
- C22C18/04—Alloys based on zinc with aluminium as the next major constituent
Definitions
- alloys of improved physical properties including high ultimate tensile strengths at ambient temperatures, improved stress rupture lives, and high creep strengths as well as potential superplasticity can be obtained by adding to zinc-aluminum eutectoid alloys containing from 0.3 to percent by weight of copper, and from 0.01 to 0.1 percent by weight of magnesium, small amounts, of the order of from 0.005 to 0.3 percent by weight of at least one of the metals calcium, lithium and sodium.
- the alloys of the invention contain from 10 to 30 percent byweight of aluminum, the balance being zinc.
- preferred alloys of the invention contain to 24 percent by weight of aluminum, from about 0.75 to about 1.1 percent by weight of copper, from about 0.04 to about 0.05 percent by weight of magnesium, from about 0.01 to about 0.03 percent by weight of at least one of the metals calcium, lithium and sodium and the balance zinc.
- alloys of the invention are not limited to uses involving superplasticity.
- Other applications of the alloys utilizing their excellent mechanical properties include such metal working techniques as forging (open die, closed die and precision) hot extrusion, impact extrusion, stamping, drawing and' screw machine techniques.
- Comparative ultimate tensile strengths of an alloy consisting of 22 percent by weight of aluminum, 0.9 percent by weight of copper, 0.04 percent byweight of magnesium and balance zinc were 53,000 psi in the hot-worked state and 62,000 psi in the heat'treated I state.
- Zinc base alloys as defined in claim 1 consisting essentially of 20 to 24 percent by weight of aluminum, 0.75 to 1.1 percent of copper, 0.04 to 0.05 percent by weight of magnesium, 0.01 to 0.03 percent by weight of calcium and balance zinc.
- Zinc base alloys as defined in claim 2 in which the calcium is replaced by lithium are substituted by lithium.
- Zinc base alloys as defined in claim 2 in which the calcium is replaced by sodium.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Reinforcement Elements For Buildings (AREA)
- Forging (AREA)
- Extrusion Of Metal (AREA)
Abstract
Zinc alloys having improved physical properties consist essentially of 10 to 30 percent by weight of aluminum, 0.3 to 10 percent by weight of copper, 0.01 to 0.1 percent by weight of magnesium, 0.005 to 0.3 percent by weight of at least one of the metals calcium, lithium and sodium, and the balance zinc.
Description
United States Patent 1191 Balliett Nov. 26, 1974 [54] HIGH STRENGTH ZINC ALLOYS 7 3,734,785 5/1973 Watson et al. 75/178 AM [75] Inventor: Robert Wayne Balliett, Beaver Falls, FOREIGN PATENTS OR APPLICATIONS 663,274 8/1938 Germany 75/178 AM [73 Assignee; St. Joe Minerals Corporation, New 703,977 3/1941 Germany 75/178 AM York, NY. Primary Examiner-L. Dewayne Rutledge [22] Flled' May 1973 Assistant ExaminerE. L. Weise [21] Appl. No.: 358,275 Attorney, Agent, or Firm-Cameron, Kerkam, Sutton,
Stowell '& Stowell [52] US. Cl. 75/178 AM [51] Int. Cl. C22c 17/00 [57] ABSTRACT [58] held of Search 75/178 178 178 AC Zinc alloys having improved physical properties consist essentially of 10 to 30 percent by weight of alumi- [56] References cued num, 0.3 to 10 percent by weight of copper, 0.01 to UNITED STATES PATENTS 0.1 percent by weight of magnesium, 0.005 to 0.3 perl,945.288 l/l934 Morell 75/178 AM cent by weight of at least one of the metals calcium, 2,102,8 9 12/1937 Winter 75/178 A lithium and sodium, and the balance zinc. 3,527,601 9/1970 Foerster 75/178 A 3,676,115 7/1972 Hare et a1 75/178 AM 4 Claims, N0 Drawings HIGH STRENGTH ZINC ALLOYS it has been known for over twenty-five years that near-eutectoid alloys of zinc and aluminum upon suitable heat treatment acquire the capacity for a high degree of plastic extension which has'been termed superplasticity. A review of theliterature in the field of aluminum-zinc superplastic alloys is provided by an article entitled Superplasticity in an Al-Zn Alloy by W. A. Backofen et al. in Transactions ofthe ASM, Vol. 57, 1964, pages 980-990.
U.S. Pat. No. 1,945,288 to Morell disclosed eutectoid alloys of zinc and aluminum containing minor proportions of magnesium and copper. Although the Morell patent did not explicitly describe the phenomenon of superplasticity, it became very obvious from the literature in this field cited and discussed in the Backofen article referred to above that the alloys described in the Morell patent possessed the property of superplasticity.
It has now been found that alloys of improved physical properties including high ultimate tensile strengths at ambient temperatures, improved stress rupture lives, and high creep strengths as well as potential superplasticity can be obtained by adding to zinc-aluminum eutectoid alloys containing from 0.3 to percent by weight of copper, and from 0.01 to 0.1 percent by weight of magnesium, small amounts, of the order of from 0.005 to 0.3 percent by weight of at least one of the metals calcium, lithium and sodium. The alloys of the invention contain from 10 to 30 percent byweight of aluminum, the balance being zinc.
For most purposes preferred alloys of the invention contain to 24 percent by weight of aluminum, from about 0.75 to about 1.1 percent by weight of copper, from about 0.04 to about 0.05 percent by weight of magnesium, from about 0.01 to about 0.03 percent by weight of at least one of the metals calcium, lithium and sodium and the balance zinc.
The following are typical alloy compositions of the invention all parts being percent by weight:
TABLE I formed into useful products by any of the methods known in the art of forming superplastic alloys.
.The practical utilization of the alloys of the invention are not limited to uses involving superplasticity. Other applications of the alloys utilizing their excellent mechanical properties include such metal working techniques as forging (open die, closed die and precision) hot extrusion, impact extrusion, stamping, drawing and' screw machine techniques.
The results of tensile strength tests on typical alloys of the invention are given below. In the table the term hot-worked denotes the as-rolled or as-extruded material and the term heat-treated denotes the material that has been heat-treated between 275C. and 380C.
Comparative ultimate tensile strengths of an alloy consisting of 22 percent by weight of aluminum, 0.9 percent by weight of copper, 0.04 percent byweight of magnesium and balance zinc were 53,000 psi in the hot-worked state and 62,000 psi in the heat'treated I state.
copper, 0.01 to 0.1 percent by weight of magnesium,
0.005 to 0.3 percent by weight of at least one of the metals calcium, lithium-and sodium, and the balance zinc.
Al Mg Zn Balance Balance Balance Balance Balance 2. Zinc base alloys as defined in claim 1 consisting essentially of 20 to 24 percent by weight of aluminum, 0.75 to 1.1 percent of copper, 0.04 to 0.05 percent by weight of magnesium, 0.01 to 0.03 percent by weight of calcium and balance zinc.
3. Zinc base alloys as defined in claim 2 in which the calcium is replaced by lithium.
4. Zinc base alloys as defined in claim 2 in which the calcium is replaced by sodium.
Claims (4)
1. ZINC BASE ALLOYS HAVING IMPROVED MECHANICAL PROPERTIES CONSISTING ESSENTIALLY OF 20 TO 24 PERCENT BY WEIGHT OF ALUMINUM 0.3 TO 10 PERCENT BY WEIGHT OF COPPER, 0.01 TO 0.1 PERCENT BY WEIGHT OF MAGNESIUM, 0.005 TO 0.3 PERCENT BY WEIGHT OF AT LEAST ONE OF THE METALS CALCIUM, LITHIUM AND SODIUM AND THE BALANCE ZINC.
2. Zinc base alloys as defined in claim 1 consisting essentially of 20 to 24 percent by weight of aluminum, 0.75 to 1.1 percent of copper, 0.04 to 0.05 percent by weight of magnesium, 0.01 to 0.03 percent by weight of calcium and balance zinc.
3. Zinc base alloys as defined in claim 2 in which the calcium is replaced by lithium.
4. Zinc base alloys as defined in claim 2 in which the calcium is replaced by sodium.
Priority Applications (13)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00358275A US3850622A (en) | 1973-05-08 | 1973-05-08 | High strength zinc alloys |
CA196,722A CA990541A (en) | 1973-05-08 | 1974-04-03 | High strength zinc alloys |
AU67710/74A AU476716B2 (en) | 1973-05-08 | 1974-04-10 | High strength zinc alloys |
NL7405498A NL7405498A (en) | 1973-05-08 | 1974-04-24 | |
AR253477A AR199956A1 (en) | 1973-05-08 | 1974-04-26 | ZINC BASED ALLOYS HAVING BETTER MECHANICAL PROPERTIES |
FR7414710A FR2228850A1 (en) | 1973-05-08 | 1974-04-26 | |
DE2420782A DE2420782A1 (en) | 1973-05-08 | 1974-04-29 | ZINC ALLOY |
LU70000A LU70000A1 (en) | 1973-05-08 | 1974-05-06 | |
JP5064174A JPS5319447B2 (en) | 1973-05-08 | 1974-05-07 | |
BE144004A BE814648A (en) | 1973-05-08 | 1974-05-07 | HIGH STRENGTH ZINC ALLOYS |
GB2003274A GB1429099A (en) | 1973-05-08 | 1974-05-07 | Zinc alloys |
IT22376/74A IT1010472B (en) | 1973-05-08 | 1974-05-07 | HIGH RESISTANCE ZINC ALLOYS |
US05/647,583 USRE29038E (en) | 1973-05-08 | 1976-01-08 | High strength zinc alloys |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00358275A US3850622A (en) | 1973-05-08 | 1973-05-08 | High strength zinc alloys |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US05/647,583 Reissue USRE29038E (en) | 1973-05-08 | 1976-01-08 | High strength zinc alloys |
Publications (1)
Publication Number | Publication Date |
---|---|
US3850622A true US3850622A (en) | 1974-11-26 |
Family
ID=23409011
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00358275A Expired - Lifetime US3850622A (en) | 1973-05-08 | 1973-05-08 | High strength zinc alloys |
Country Status (12)
Country | Link |
---|---|
US (1) | US3850622A (en) |
JP (1) | JPS5319447B2 (en) |
AR (1) | AR199956A1 (en) |
AU (1) | AU476716B2 (en) |
BE (1) | BE814648A (en) |
CA (1) | CA990541A (en) |
DE (1) | DE2420782A1 (en) |
FR (1) | FR2228850A1 (en) |
GB (1) | GB1429099A (en) |
IT (1) | IT1010472B (en) |
LU (1) | LU70000A1 (en) |
NL (1) | NL7405498A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3954515A (en) * | 1974-05-01 | 1976-05-04 | Isc Alloys Limited | Production of superplastic zinc-aluminium alloy sheet |
US3966505A (en) * | 1974-05-15 | 1976-06-29 | Ball Corporation | High strength wrought zinc alloy |
US4029525A (en) * | 1975-04-30 | 1977-06-14 | Ball Corporation | High strength wrought zinc alloy |
US4126450A (en) * | 1977-03-29 | 1978-11-21 | Ball Corporation | Continuously castable zinc base alloy |
US4599279A (en) * | 1984-10-01 | 1986-07-08 | Ball Corporation | Zinc alloy for reducing copper-zinc diffusion |
US4965046A (en) * | 1988-10-04 | 1990-10-23 | Noranda Inc. | Creep resistant zinc-aluminum based casting alloy |
US5945066A (en) * | 1997-11-20 | 1999-08-31 | Griffin; James D. | Zinc-copper based alloy and castings made therefrom |
CN110343906A (en) * | 2019-07-17 | 2019-10-18 | 浙江工贸职业技术学院 | A kind of Heat-insulation metal material and preparation method thereof |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE1000566A7 (en) * | 1987-05-13 | 1989-02-07 | Centre Rech Metallurgique | Zinc alloy resistant hot. |
JPH0641620B2 (en) * | 1989-01-31 | 1994-06-01 | 三井金属鉱業株式会社 | Mold manufacturing method |
JPH03121869U (en) * | 1990-03-27 | 1991-12-12 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1945288A (en) * | 1931-07-09 | 1934-01-30 | American Brass Co | Zinc base alloy |
US2102869A (en) * | 1936-08-26 | 1937-12-21 | New Jersey Zinc Co | Zinc alloys |
DE663274C (en) * | 1934-01-27 | 1938-08-02 | Metallgesellschaft Akt Ges | Zinc injection molding alloys |
DE703977C (en) * | 1937-02-14 | 1941-03-20 | Metallgesellschaft Akt Ges | management |
US3527601A (en) * | 1967-06-14 | 1970-09-08 | Dow Chemical Co | Process of making creep-resistant zinc-base alloys |
US3676115A (en) * | 1968-05-03 | 1972-07-11 | Nat Res Dev | Zinc alloys |
US3734785A (en) * | 1969-12-31 | 1973-05-22 | Cominco Ltd | Zinc forging alloy |
-
1973
- 1973-05-08 US US00358275A patent/US3850622A/en not_active Expired - Lifetime
-
1974
- 1974-04-03 CA CA196,722A patent/CA990541A/en not_active Expired
- 1974-04-10 AU AU67710/74A patent/AU476716B2/en not_active Expired
- 1974-04-24 NL NL7405498A patent/NL7405498A/xx not_active Application Discontinuation
- 1974-04-26 FR FR7414710A patent/FR2228850A1/fr not_active Withdrawn
- 1974-04-26 AR AR253477A patent/AR199956A1/en active
- 1974-04-29 DE DE2420782A patent/DE2420782A1/en active Pending
- 1974-05-06 LU LU70000A patent/LU70000A1/xx unknown
- 1974-05-07 GB GB2003274A patent/GB1429099A/en not_active Expired
- 1974-05-07 BE BE144004A patent/BE814648A/en unknown
- 1974-05-07 IT IT22376/74A patent/IT1010472B/en active
- 1974-05-07 JP JP5064174A patent/JPS5319447B2/ja not_active Expired
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1945288A (en) * | 1931-07-09 | 1934-01-30 | American Brass Co | Zinc base alloy |
DE663274C (en) * | 1934-01-27 | 1938-08-02 | Metallgesellschaft Akt Ges | Zinc injection molding alloys |
US2102869A (en) * | 1936-08-26 | 1937-12-21 | New Jersey Zinc Co | Zinc alloys |
DE703977C (en) * | 1937-02-14 | 1941-03-20 | Metallgesellschaft Akt Ges | management |
US3527601A (en) * | 1967-06-14 | 1970-09-08 | Dow Chemical Co | Process of making creep-resistant zinc-base alloys |
US3676115A (en) * | 1968-05-03 | 1972-07-11 | Nat Res Dev | Zinc alloys |
US3734785A (en) * | 1969-12-31 | 1973-05-22 | Cominco Ltd | Zinc forging alloy |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3954515A (en) * | 1974-05-01 | 1976-05-04 | Isc Alloys Limited | Production of superplastic zinc-aluminium alloy sheet |
US3966505A (en) * | 1974-05-15 | 1976-06-29 | Ball Corporation | High strength wrought zinc alloy |
US4029525A (en) * | 1975-04-30 | 1977-06-14 | Ball Corporation | High strength wrought zinc alloy |
US4126450A (en) * | 1977-03-29 | 1978-11-21 | Ball Corporation | Continuously castable zinc base alloy |
US4599279A (en) * | 1984-10-01 | 1986-07-08 | Ball Corporation | Zinc alloy for reducing copper-zinc diffusion |
US4965046A (en) * | 1988-10-04 | 1990-10-23 | Noranda Inc. | Creep resistant zinc-aluminum based casting alloy |
US5945066A (en) * | 1997-11-20 | 1999-08-31 | Griffin; James D. | Zinc-copper based alloy and castings made therefrom |
CN110343906A (en) * | 2019-07-17 | 2019-10-18 | 浙江工贸职业技术学院 | A kind of Heat-insulation metal material and preparation method thereof |
Also Published As
Publication number | Publication date |
---|---|
JPS5027718A (en) | 1975-03-22 |
IT1010472B (en) | 1977-01-10 |
BE814648A (en) | 1974-09-02 |
AU476716B2 (en) | 1976-09-30 |
FR2228850A1 (en) | 1974-12-06 |
AR199956A1 (en) | 1974-10-08 |
DE2420782A1 (en) | 1974-11-28 |
JPS5319447B2 (en) | 1978-06-21 |
LU70000A1 (en) | 1974-09-25 |
AU6771074A (en) | 1975-10-16 |
CA990541A (en) | 1976-06-08 |
GB1429099A (en) | 1976-03-24 |
NL7405498A (en) | 1974-11-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: MANUFACTURERS HANOVER TRUST COMPANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:HORSEHEAD INDUSTRIES, INC.;REEL/FRAME:005005/0087 Effective date: 19890112 Owner name: CHASE MANHATTAN BANK, N.A., THE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:HORSEHEAD INDUSTRIES, INC.;REEL/FRAME:005005/0087 Effective date: 19890112 |