US2549955A - Magnesium base alloys - Google Patents
Magnesium base alloys Download PDFInfo
- Publication number
- US2549955A US2549955A US69243A US6924349A US2549955A US 2549955 A US2549955 A US 2549955A US 69243 A US69243 A US 69243A US 6924349 A US6924349 A US 6924349A US 2549955 A US2549955 A US 2549955A
- Authority
- US
- United States
- Prior art keywords
- magnesium
- alloys
- earth metals
- rare earth
- magnesium base
- 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
Links
- 229910045601 alloy Inorganic materials 0.000 title claims description 24
- 239000000956 alloy Substances 0.000 title claims description 24
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 title claims description 18
- 229910052749 magnesium Inorganic materials 0.000 title claims description 18
- 239000011777 magnesium Substances 0.000 title claims description 18
- 229910052726 zirconium Inorganic materials 0.000 claims description 12
- 229910052684 Cerium Inorganic materials 0.000 claims description 9
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims description 9
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 9
- 150000002910 rare earth metals Chemical class 0.000 claims description 9
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 7
- 229910052777 Praseodymium Inorganic materials 0.000 claims description 4
- 229910052746 lanthanum Inorganic materials 0.000 claims description 4
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 claims description 4
- PUDIUYLPXJFUGB-UHFFFAOYSA-N praseodymium atom Chemical compound [Pr] PUDIUYLPXJFUGB-UHFFFAOYSA-N 0.000 claims description 4
- 229910052779 Neodymium Inorganic materials 0.000 claims description 3
- 229910052772 Samarium Inorganic materials 0.000 claims description 3
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 claims description 3
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 claims description 3
- 229910052727 yttrium Inorganic materials 0.000 claims description 3
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims description 3
- 229910001122 Mischmetal Inorganic materials 0.000 description 7
- 239000011701 zinc Substances 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 5
- 229910052725 zinc Inorganic materials 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- ZSLUVFAKFWKJRC-IGMARMGPSA-N 232Th Chemical compound [232Th] ZSLUVFAKFWKJRC-IGMARMGPSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910052776 Thorium Inorganic materials 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052790 beryllium Inorganic materials 0.000 description 2
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 2
- 229910052793 cadmium Inorganic materials 0.000 description 2
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C23/00—Alloys based on magnesium
- C22C23/06—Alloys based on magnesium with a rare earth metal as the next major constituent
Definitions
- This invention relates to magnesium its Object is to improve the mechanicalflpropeh ties of such alloys.
- the op-'-- timum quantity of misch metal free from cerium to be introduced into the alloys was moreover specified to lie between and 10% of the .total alloy, which also contained appreciable Qpresent, if at all, in quantities not exceeding separately or together, the, balance, if any, being praseodymium and small quantities of samarium and traces of elements of the yttrium
- the praseodymium is therefore about 10 to 25% of the total of rare earth metals.
- alloys of the present invention offer improved static mechanical properties, particularly in the cast state, as compared with alloys containing similar or greater proportions of misch metal (with and without cerium), or lanthanum. Moreover, the alloys of the present invention have an improved creep resistance at high temperatures as compared with alloys containing similar or higher proportions of cerium or misch metal (with and Without cerium) or 1anthanum.;
- alloys of the present invention alsol im ai' contain any otherjelementsknown in the mag,-
- alloys do not contain-zirconium, they may contain one or more of the following elements in the proportions stated:
- alloys may, however, contain one or more
- they should of hydrochloric acid consisting of- 30 cos. of HCl (specific gravity 1.16) to'85 cos. of water, sufiicient acid being added during dissolution to maintain the initial concentration.
- the alloys of the present invention offer advantages both in the cast and wroughtconditions.
- A' magnesium base alloy consisting essentially of at-least 85-% magnesium and at least 0.41%: of zirconium; and from: :5 to 4% ofirare earth metals of which neodymium" constitutes at least.- 50% and in; which lanthanum; and: cerium do-not exceed25;%' together, the balanceof the rare.- earth metals being.
- praseodymiunr and small.quantities -ofisamarium and; traces of ele- Static Mechanical Properties are. as-
- a magnesium base alloy consisting essentially of at least 85% magnesium and at least 0.4% zirconium and from 0.5150 eper cent of rare earth metals of which neodymium constitutes at least and in which lanthanum and cerium do not exceed 25% together; the balance of. the rare earth metals being praseodymium and small quantities of samarium and traces of elements 01fv theyt-trium sub-group of rare earth metals, betWeen OA and 0.9% zirconium in a condition soluble in hydrochloric acid consisting of'30; cc; of H61 of specific gravity 1.16 to .85 cc. ofwa'ter'; sufficient acid being added during dissolution to maintain the initial concentration.
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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)
Description
@group of rare earth metals.
Patented Apr. 24,1951
UNITED STATES" PATIFLN'I'} ,OFFlC-El l Y 2,549,955 f Q l MAGNESIUM BASE ALLOYS I Alfred ClaudefJes'sup, Edward Fredericli-Emley,
and Philip Andrew Fisher, CliftonJunction,
near Manchester, England, assignorsto Magnesium Elektron Limited, Clifton Junction, near.
, Manchester, Englandga British company N6 Drawing. Application January 4, 1949, Serial No. 69,243. 'In Great Britain January 6, 10 18 2 Claims. (ems-1 s) This invention relates to magnesium its Object is to improve the mechanicalflpropeh ties of such alloys.
It has heretofore beenproposed to incorpo- ;v
.rate proportions of ceriumor misch metal in magnesium base alloys in order to improve mechanical properties, and in particular the resistance to creep at elevated temperatures, e. 'g. of the order of 200 C. v
It has furthermore been proposed in the specification of British Patent No. 540,333 to provide magnesium base alloys which incorporate misch metal from which the cerium has been substantially removed with a view to im proving the resistance of the alloys to corrosion I without losing their desirable. mechanical properties. This omission of cerium does not however appreciably affect the mechanical properties either harmfully or. desirably.- The op-'-- timum quantity of misch metal free from cerium to be introduced into the alloys was moreover specified to lie between and 10% of the .total alloy, which also contained appreciable Qpresent, if at all, in quantities not exceeding separately or together, the, balance, if any, being praseodymium and small quantities of samarium and traces of elements of the yttrium The praseodymium is therefore about 10 to 25% of the total of rare earth metals.
We have found that such alloys offer improved static mechanical properties, particularly in the cast state, as compared with alloys containing similar or greater proportions of misch metal (with and without cerium), or lanthanum. Moreover, the alloys of the present invention have an improved creep resistance at high temperatures as compared with alloys containing similar or higher proportions of cerium or misch metal (with and Without cerium) or 1anthanum.;
base al-- loys containing at least 85% of magnesium and of the following elements in the proportions stated:
Percent Zinc 0.5 to 10 Cadmium 0.5 to 10 Beryllium 0.0005 to 0.1. Mercury 0.01 to 5 Thorium 0.01 to 10 Calcium 0.01 to 0.2
The alloys of the present inventionalsol im ai' contain any otherjelementsknown in the mag,-
nesium base alloy art as alloying ingredients fin these alloys. If the alloys do not contain-zirconium, they may contain one or more of the following elements in the proportions stated:
.7 I Percent Manganese 0.02 to 2 Aluminium 0.01 to' 2,.- Calcium ..0,01 to 0.2 Thorium 0.01 to 10 Mercury 0.01 to 10.. Beryllium 0.0005 to -0.1 a V 0.5 to 10 Cadmium -0.5 A to 10 Wehave, moreover, ascertained that-a further Patent No. 511,137, and in particular increases Such alloys the elongate of sand cast objects. incorporating zirconium must be substantially free from elements which precipitate zirconium from a magnesium melt, e. g. aluminium,manganese, tin, silicon, cobalt, nickel and antimony. These alloys may, however, contain one or more In general when the alloys according to the present invention contain zirconium, they should of hydrochloric acid consisting of- 30 cos. of HCl (specific gravity 1.16) to'85 cos. of water, sufiicient acid being added during dissolution to maintain the initial concentration.
The alloys of the present invention offer advantages both in the cast and wroughtconditions.
0.7% Zr, 35% Zn,2%% misch-metal, 5.0 10 inch per 1' length Balance magnesium.-
What we-claimis:- 1. A' magnesium base alloy, consisting essentially of at-least 85-% magnesium and at least 0.41%: of zirconium; and from: :5 to 4% ofirare earth metals of which neodymium" constitutes at least.- 50% and in; which lanthanum; and: cerium do-not exceed25;%' together, the balanceof the rare.- earth metals being. praseodymiunr and small.quantities -ofisamarium and; traces of ele- Static Mechanical Properties are. as-
55 3 Stress,. Perscent tonlsqgin; 0112" 0.7% Zr, 2%? Zn, 2%% misch metal, ba ance magnesium. As cast; 6. 0 11'. 5 5. 0 0.7% Zr, 2 4% Zn, 2%% dldymium, balance magnesium. As cast 6.3 12.0 9.0 0.7% Zr, 4%% Zn, 2% Iqlsch' metal JaIEHCG IIIBQDGSIUJIII.
Heat treated-24 hrs. at 330? O. 8. 2 12. 4 3. 5 O.-7%"Zr; 4%% Zn, 2% didym= ium, balance magnesium. Heattreated 24 hrs..at.330 C. 8.4 14.0 5.0
CreepResistance Alloy Creep Rate per hour at 200 C.
ments of the yttrium sub-group of rare earth metals.
2. A magnesium base alloy, consisting essentially of at least 85% magnesium and at least 0.4% zirconium and from 0.5150 eper cent of rare earth metals of which neodymium constitutes at least and in which lanthanum and cerium do not exceed 25% together; the balance of. the rare earth metals being praseodymium and small quantities of samarium and traces of elements 01fv theyt-trium sub-group of rare earth metals, betWeen OA and 0.9% zirconium in a condition soluble in hydrochloric acid consisting of'30; cc; of H61 of specific gravity 1.16 to .85 cc. ofwa'ter'; sufficient acid being added during dissolution to maintain the initial concentration.
' AL'ERED'CLAUDE JESSUP.
EDWARD FREDERICK E'MLEY. PHILIP ANDREW FISHER.
REFERENCES CITED 'The following references are of recordlin the file" of this patent:
UNITED STATES PATENTS Number Name Date 25.4203293 Becket al. May 13, 1947 1461,229 Murphy et al Feb. 8, 1 949 2,4645918' Ball et'al Mar. 22, 1949 FOREIGN PATENTS Number Country" Date.
- 511,137 Great. Britain Nov. 8,. 1938 113,802 Australia Sept-4, 1941 OTHER REFERENCES Ser. No. 369,749, Sauerwald A; PFC.) published June 15,1943, abandoned.
-'I romble-et a1.: treatise inComptesRendus, 1943,. pages 603-605, inclusive (page 605' relied upon).
Claims (1)
1. A MAGNESIUM BASE ALLOY, CONSISTING ESSENTIALLY OF AT LEAST 85% MAGNESIUM AND AT LEAST 0.4% OF ZIRCONIUM AND FROM 0.5% TO 4% OF RARE EARTH METALS OF WHICH NEODYMIUM CONSTITUTES AT LEAST 50%, AND IN WHICH LANTHANUM AND CERIUM DO NOT EXCEED 25% TOGETHER, THE BALANCE OF THE RARE EARTH METALS BEING PRASEODYMIUM AND SMALL QUANTITIES OF SAMARIUM AND TRACES OF ELEMENTS OF THE YTTRIUM SUB-GROUP OF RARE EARTH METALS.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2549955X | 1948-01-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2549955A true US2549955A (en) | 1951-04-24 |
Family
ID=10909827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US69243A Expired - Lifetime US2549955A (en) | 1948-01-06 | 1949-01-04 | Magnesium base alloys |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2549955A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2604396A (en) * | 1950-06-02 | 1952-07-22 | Magnesium Elektron Ltd | Magnesium base alloys |
| US2788272A (en) * | 1954-04-26 | 1957-04-09 | Magnesium Elektron Ltd | Magnesium base alloys |
| US2801166A (en) * | 1954-08-12 | 1957-07-30 | Siam | Alloys of magnesium and rare earths |
| US2829973A (en) * | 1953-04-09 | 1958-04-08 | Magnesium Elektron Ltd | Magnesium base alloys |
| US2839394A (en) * | 1953-11-09 | 1958-06-17 | Invetions Aeronautiques Et Mec | Magnesium alloys |
| US2839395A (en) * | 1954-08-11 | 1958-06-17 | Siam | Magnesium alloys |
| US2844463A (en) * | 1953-11-09 | 1958-07-22 | Siam | Magnesium-base alloys |
| US2979398A (en) * | 1958-07-03 | 1961-04-11 | Dow Chemical Co | Magnesium-base alloy |
| US3687135A (en) * | 1969-08-20 | 1972-08-29 | Genrikh Borisovich Stroganov | Magnesium-base alloy for use in bone surgery |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB511137A (en) * | 1938-02-09 | 1939-08-09 | Ig Farbenindustrie Ag | Improvements in and relating to magnesium alloys |
| US2420293A (en) * | 1939-03-04 | 1947-05-13 | Beck Adolf | Magnesium base alloys |
| US2461229A (en) * | 1944-07-11 | 1949-02-08 | Magnesium Elektron Ltd | Method of producing magnesium base alloys |
| US2464918A (en) * | 1945-03-22 | 1949-03-22 | Magnesium Elektron Ltd | Magnesium base alloys |
-
1949
- 1949-01-04 US US69243A patent/US2549955A/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB511137A (en) * | 1938-02-09 | 1939-08-09 | Ig Farbenindustrie Ag | Improvements in and relating to magnesium alloys |
| US2420293A (en) * | 1939-03-04 | 1947-05-13 | Beck Adolf | Magnesium base alloys |
| US2461229A (en) * | 1944-07-11 | 1949-02-08 | Magnesium Elektron Ltd | Method of producing magnesium base alloys |
| US2464918A (en) * | 1945-03-22 | 1949-03-22 | Magnesium Elektron Ltd | Magnesium base alloys |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2604396A (en) * | 1950-06-02 | 1952-07-22 | Magnesium Elektron Ltd | Magnesium base alloys |
| US2829973A (en) * | 1953-04-09 | 1958-04-08 | Magnesium Elektron Ltd | Magnesium base alloys |
| US2839394A (en) * | 1953-11-09 | 1958-06-17 | Invetions Aeronautiques Et Mec | Magnesium alloys |
| US2844463A (en) * | 1953-11-09 | 1958-07-22 | Siam | Magnesium-base alloys |
| US2788272A (en) * | 1954-04-26 | 1957-04-09 | Magnesium Elektron Ltd | Magnesium base alloys |
| US2839395A (en) * | 1954-08-11 | 1958-06-17 | Siam | Magnesium alloys |
| US2801166A (en) * | 1954-08-12 | 1957-07-30 | Siam | Alloys of magnesium and rare earths |
| US2979398A (en) * | 1958-07-03 | 1961-04-11 | Dow Chemical Co | Magnesium-base alloy |
| US3687135A (en) * | 1969-08-20 | 1972-08-29 | Genrikh Borisovich Stroganov | Magnesium-base alloy for use in bone surgery |
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