US3124451A - Manganese-base brazing alloys - Google Patents
Manganese-base brazing alloys Download PDFInfo
- Publication number
- US3124451A US3124451A US3124451DA US3124451A US 3124451 A US3124451 A US 3124451A US 3124451D A US3124451D A US 3124451DA US 3124451 A US3124451 A US 3124451A
- Authority
- US
- United States
- Prior art keywords
- manganese
- nickel
- cobalt
- alloy
- alloys
- 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 86
- 239000000956 alloy Substances 0.000 title claims description 86
- 238000005219 brazing Methods 0.000 title claims description 30
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical compound [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 claims description 48
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 42
- 229910052803 cobalt Inorganic materials 0.000 claims description 42
- 239000010941 cobalt Substances 0.000 claims description 42
- PWHULOQIROXLJO-UHFFFAOYSA-N manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 28
- 229910052748 manganese Inorganic materials 0.000 claims description 28
- 239000011572 manganese Substances 0.000 claims description 28
- 238000003483 aging Methods 0.000 claims description 14
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 80
- 229910052759 nickel Inorganic materials 0.000 description 40
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 18
- 229910052796 boron Inorganic materials 0.000 description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 229910052799 carbon Inorganic materials 0.000 description 8
- 230000000135 prohibitive Effects 0.000 description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 8
- 229910052710 silicon Inorganic materials 0.000 description 8
- 239000010703 silicon Substances 0.000 description 8
- 229910052804 chromium Inorganic materials 0.000 description 6
- VYZAMTAEIAYCRO-UHFFFAOYSA-N chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 6
- 239000011651 chromium Substances 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 6
- 239000010949 copper Substances 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 6
- ZOKXTWBITQBERF-UHFFFAOYSA-N molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 6
- 229910052750 molybdenum Inorganic materials 0.000 description 6
- 239000011733 molybdenum Substances 0.000 description 6
- 235000019589 hardness Nutrition 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 2
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 2
- HZEIHKAVLOJHDG-UHFFFAOYSA-N boranylidynecobalt Chemical compound [Co]#B HZEIHKAVLOJHDG-UHFFFAOYSA-N 0.000 description 2
- QDWJUBJKEHXSMT-UHFFFAOYSA-N boranylidynenickel Chemical compound [Ni]#B QDWJUBJKEHXSMT-UHFFFAOYSA-N 0.000 description 2
- ZDVYABSQRRRIOJ-UHFFFAOYSA-N boron;iron Chemical compound [Fe]#B ZDVYABSQRRRIOJ-UHFFFAOYSA-N 0.000 description 2
- PALQHNLJJQMCIQ-UHFFFAOYSA-N boron;manganese Chemical compound [Mn]#B PALQHNLJJQMCIQ-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C22/00—Alloys based on manganese
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3026—Mn as the principal constituent
Definitions
- This invention relates generally to manganese-base brazing alloys, but has reference more particularly to brazing alloys of this type which are characterized by the fact that they do not age harden excessively at elevated temperatures.
- cobalt may vary from about 27% to about 37%. If nickel is used to the exclusion of cobalt, the nickel may Vary from about 27% to about 37%. If nickel and cobalt are employed in combination, the combined content of cobalt and nickel may vary from about 27% to about 37%.
- the alloy may contain, optionally, small amounts, that r is to say, from 0.05% to 2% boron, the boron improving the flow properties of the alloy, to some extent.
- the boron may be incorporated in the alloy, in the process of manufacture of the alloy, in the form of cobalt-boron, iron-boron, nickel-boron, or manganese-boron, these alloys containing about 14% to about 20% of boron.
- the alloys may contain one or more of the elements chromium, copper, silicon, iron, carbon, and molybdenum, but the aggregate or total amount of these should not exceed about 5%.
- the expression, the balance substantially all nickel and/ or cobalt, as used in the claims, is intended to include boron, in amounts up to 2%, and one or more ofthe elements chromium, copper, silicon, iron, carbon, and molybdenum, in a total amount not to exceed 5%.
- the alloys can be made preferably by melting the ingredients in a vacuum or in an inert atmosphere, casting the melt into an ingot, and then rolling or drawing the ingot, or the alloys can be made by sintering together the constituents of the alloy.
- the alloys can also be atomized (melted and sprayed) with water or air.
- the alloys have exceptional strength at high temperatures, and have excellent ductility.
- a preferred alloy within the foregoing specification, is one containing about 65% manganese, about 16% nickel, about 16% cobalt, with the remaining 3% consist ing of small amounts of boron and silicon, and one or more of the elements chromium, copper, iron, carbon and molybdenum.
- a typical alloy within the foregoing specification con- .sists of about 68% manganese, about 16% nickel, about 16% cobalt, and about 0.06% boron.
- a brazing alloy consisting of about 68% manganese, about 16% nickel, about 16% cobalt, and about 0.06% boron.
- a brazing alloy consisting of the following elements,
- a brazing alloy consisting of about 68% manganese, about 16% nickel, and about 16% cobalt, said alloy being resistive to substantial age hardening at temperatures of 1000" F. for prolonged periods.
- a brazing alloy consisting of about 63 to about 69% manganese, about 14 to about 18% nickel, and about 14 to about 18% cobalt, said alloy being resistive to substantial age hardening at temperatures of 1000 F. for prolonged periods.
- a brazed structure consisting of ferrous metal parts and a brazing alloy joining said parts, said brazing alloy consisting essentially of manganese in amounts of from References Cited in the file of this patent UNITED STATES PATENTS 2,133,291 Gordon Oct. 1 8, 1938 2,339,252 Dean Jan. 18, 1944 2,850,381 Bolkcom et al. Sept. 2, 1958 2,856,281 Cremer et al. Oct. 14, 1958 2,872,309 Bolkcom et al. Feb. 3, 1959
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Laminated Bodies (AREA)
Description
' 3,124,451 MANGANESE-BASE BRAZING ALLOYS Arthur '1. Cape, Monterey, Califi, assignor to Coast Metals, inc, Little Ferry, N.J., a corporation of Delaware No Drawing. Filed Jan. 4, 1962, Ser. No. 164,411 5 Claims. (Cl. 75-134) This invention relates generally to manganese-base brazing alloys, but has reference more particularly to brazing alloys of this type which are characterized by the fact that they do not age harden excessively at elevated temperatures.
In testing manganese-base brazing alloys containing less than 63% manganese, with the remainder substantially all nickel or cobalt, or nickel and cobalt, it has been found that such alloys suffer from age hardening effects. Such alloys harden to prohibitive values when heat treated at 1000 F. for 336 hours, but the hardening also occurs at lower temperatures, over a longer period of time.
I have found, as the result of extensive tests in age hardening such alloys, that if the manganese content of the alloy is increased to 63%, with the remainder of the alloy essentially cobalt or nickel, or cobalt and nickel, that a dramatic change in the susceptibility of the alloy to age hardening occurs, and that the alloy does not age harden to prohibitive values, ifthe manganese content is increased to any value within the range of from 63% to 73%. r
I have found, in other words, that alloys containing from 63% to 73% manganese, with the remainder of the alloy principally cobalt or nickel, or cobalt and nickel, do not harden to prohibitive values at temperatures of 1000 F. for prolonged periods In arriving at these conclusions, the following series of brazing alloys were tested, for age hardening. In each case, lap joint samples were prepared, each of which consisted of strips of type 304 stainless and mild steel, joined in lap-jointed relationship by these brazing alloys. The lap joint samples were examined in the as-received or asbrazed condition, and in their condition following heat treatment at 1000 F. for 336 hours. The microhardnesses represent averages of readings, five takenin the fillet area, and five in the joint proper. All of the hardnesses are based on 200 g. Knoop.
It will be apparent from the foregoing that when the manganese content of the alloy is increased to 63%, with the remainder essentially cobalt or nickel, or cobalt and nickel, that the alloys do not change in hardness to prohibitive values, that is to say, to values in excess of about 400, and that this is true within a range of from about 63 to about 73% manganese.
United States Patent 1 O 3,124,451 Patented Mar. 10, 1964 ice.
'2 If cobalt is used to the exclusion of nickel, the cobalt may vary from about 27% to about 37%. If nickel is used to the exclusion of cobalt, the nickel may Vary from about 27% to about 37%. If nickel and cobalt are employed in combination, the combined content of cobalt and nickel may vary from about 27% to about 37%.
The alloy may contain, optionally, small amounts, that r is to say, from 0.05% to 2% boron, the boron improving the flow properties of the alloy, to some extent. The boron may be incorporated in the alloy, in the process of manufacture of the alloy, in the form of cobalt-boron, iron-boron, nickel-boron, or manganese-boron, these alloys containing about 14% to about 20% of boron.
The alloys may contain one or more of the elements chromium, copper, silicon, iron, carbon, and molybdenum, but the aggregate or total amount of these should not exceed about 5%. The expression, the balance substantially all nickel and/ or cobalt, as used in the claims, is intended to include boron, in amounts up to 2%, and one or more ofthe elements chromium, copper, silicon, iron, carbon, and molybdenum, in a total amount not to exceed 5%. g
The alloys can be made preferably by melting the ingredients in a vacuum or in an inert atmosphere, casting the melt into an ingot, and then rolling or drawing the ingot, or the alloys can be made by sintering together the constituents of the alloy. The alloys can also be atomized (melted and sprayed) with water or air.
The alloys have exceptional strength at high temperatures, and have excellent ductility.
A preferred specification for the alloys of this invention, within the indicated ranges is as follows:
Percent Manganese 63.0-69.0 Nickel 14.0-18.0 Cobalt 14.0-18.0 Boron 0.05-1.1 Silicon max 1.0 Carbon max .06 Other elements max 1.0
A preferred alloy, within the foregoing specification, is one containing about 65% manganese, about 16% nickel, about 16% cobalt, with the remaining 3% consist ing of small amounts of boron and silicon, and one or more of the elements chromium, copper, iron, carbon and molybdenum.
A typical alloy within the foregoing specification con- .sists of about 68% manganese, about 16% nickel, about 16% cobalt, and about 0.06% boron.
This application is a continuation-in-part of my copending application Serial No. 85,186.
Having thus described my invention, I claim:
1. A brazing alloy consisting of about 68% manganese, about 16% nickel, about 16% cobalt, and about 0.06% boron.
2. A brazing alloy consisting of the following elements,
within the ranges stated:
3; A brazing alloy consisting of about 68% manganese, about 16% nickel, and about 16% cobalt, said alloy being resistive to substantial age hardening at temperatures of 1000" F. for prolonged periods.
4. A brazing alloy consisting of about 63 to about 69% manganese, about 14 to about 18% nickel, and about 14 to about 18% cobalt, said alloy being resistive to substantial age hardening at temperatures of 1000 F. for prolonged periods.
5. A brazed structure consisting of ferrous metal parts and a brazing alloy joining said parts, said brazing alloy consisting essentially of manganese in amounts of from References Cited in the file of this patent UNITED STATES PATENTS 2,133,291 Gordon Oct. 1 8, 1938 2,339,252 Dean Jan. 18, 1944 2,850,381 Bolkcom et al. Sept. 2, 1958 2,856,281 Cremer et al. Oct. 14, 1958 2,872,309 Bolkcom et al. Feb. 3, 1959
Claims (2)
- 2. A BRAZING ALLOY CONSISTING OF THE FOLLOWING ELEMENTS, WITHIN THE RANGES STATED:
- 4. A BRAZING ALLOY CONSISTING OF ABOUT 63 TO ABOUT 69% MANGANESE, ABOUT 14 TO ABOUT 18% NICKEL, AND ABOUT 14 TO ABOUT 18% COBALT, SAID ALLOY BEING RESISTIVE TO SUBSTANTIAL AGE HARDENING AT TEMPERATURES OF 1000*F. FOR PROLONGED PERIODS.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3124451A true US3124451A (en) | 1964-03-10 |
Family
ID=3453890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US3124451D Expired - Lifetime US3124451A (en) | Manganese-base brazing alloys |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US3124451A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3197859A (en) * | 1965-02-09 | 1965-08-03 | Coast Metals Inc | Methods of brazing |
| US3316086A (en) * | 1964-06-16 | 1967-04-25 | Coast Metals Inc | Manganese-base brazing alloys |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2133291A (en) * | 1934-04-12 | 1938-10-18 | Gordon Frederick Felix | Manufacture of compound metal bodies |
| US2339252A (en) * | 1939-11-06 | 1944-01-18 | Chicago Dev Co | Manganese nickel alloy |
| US2850381A (en) * | 1952-08-01 | 1958-09-02 | American Metallurg Products Co | Process and alloy for adding rare earth elements and boron to molten metal baths |
| US2856281A (en) * | 1954-10-05 | 1958-10-14 | Solar Aircraft Co | High temperature brazing alloys |
| US2872309A (en) * | 1956-07-24 | 1959-02-03 | Wilbur T Bolkcom | Manganese-nickel base brazing alloys |
-
0
- US US3124451D patent/US3124451A/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2133291A (en) * | 1934-04-12 | 1938-10-18 | Gordon Frederick Felix | Manufacture of compound metal bodies |
| US2339252A (en) * | 1939-11-06 | 1944-01-18 | Chicago Dev Co | Manganese nickel alloy |
| US2850381A (en) * | 1952-08-01 | 1958-09-02 | American Metallurg Products Co | Process and alloy for adding rare earth elements and boron to molten metal baths |
| US2856281A (en) * | 1954-10-05 | 1958-10-14 | Solar Aircraft Co | High temperature brazing alloys |
| US2872309A (en) * | 1956-07-24 | 1959-02-03 | Wilbur T Bolkcom | Manganese-nickel base brazing alloys |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3316086A (en) * | 1964-06-16 | 1967-04-25 | Coast Metals Inc | Manganese-base brazing alloys |
| US3197859A (en) * | 1965-02-09 | 1965-08-03 | Coast Metals Inc | Methods of brazing |
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