GB1268549A - Improvements in and relating to dispersion-hardened metals and alloys, and articles made therefrom - Google Patents
Improvements in and relating to dispersion-hardened metals and alloys, and articles made therefromInfo
- Publication number
- GB1268549A GB1268549A GB2848969A GB2848969A GB1268549A GB 1268549 A GB1268549 A GB 1268549A GB 2848969 A GB2848969 A GB 2848969A GB 2848969 A GB2848969 A GB 2848969A GB 1268549 A GB1268549 A GB 1268549A
- Authority
- GB
- United Kingdom
- Prior art keywords
- particles
- compound
- dispersion
- mgo
- dispersoid
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/10—Alloys containing non-metals
- C22C1/1036—Alloys containing non-metals starting from a melt
- C22C1/1042—Alloys containing non-metals starting from a melt by atomising
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Powder Metallurgy (AREA)
Abstract
1,268,549. Producing dispersion-hardened alloys. DELTA METAL (B.W.) Ltd. May 29, 1970 [June 5, 1969], No.28489/69. Heading C7D. A dispersion-hardened metal or alloy is produced by a method including the step of melting particles of the metal or alloy (or a reducible compound thereof) which is to constitute the matrix of the finished product, after the particles have been coated with a compound, whereby particles of dispersoid formed from the latter compound become diffused or dissolved in the matrix material, then solidifying. The solidified particles may be coated with a further charge of the compound forming the dispersoid and remelted and again solidified, the operation being repeated as desired to increase the proportion of dispersoid. The initial matrix material may be a powder comprising one or more reducible oxides of one or more of the metals: Cu, Ni, Fe, Mo, Co, or alloys thereof; the compound forming the dispersoid may be MgO, Al 2 O 3 , CaO, TiO 2 , ZrO 2 , ThO 2 and/or rare earth metal oxides. The melting may be carried out in a furnace, or by carrying the particles entrained in air or oxygen into a flame from a flame (e.g. oxyacetylene) or plasma gun. The melted particles may be rapidly cooled by quenching in water or an inert gas stream. Where the matrix material comprises oxide particles, the cooled particles may be heated in a reducing gas e.g. H 2 , in batches in a furnace, or continuously by falling through successive perforated floors in an enclosure. The reduced particles may be consolidated or compacted into billets by powder metallurgy. For forming a dispersion of MgO in Cu, CuO powder is dampened by a suspension of MgO in water, or a solution of a Mg compound decomposable to the oxide by heating the mixture in a fluidized bed, e.g. Mg methoxide dissolved in methyl alcohol, and the solvent evaporated leaving CuO particles coated with MgO, prior to reduction.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2848969A GB1268549A (en) | 1969-06-05 | 1969-06-05 | Improvements in and relating to dispersion-hardened metals and alloys, and articles made therefrom |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2848969A GB1268549A (en) | 1969-06-05 | 1969-06-05 | Improvements in and relating to dispersion-hardened metals and alloys, and articles made therefrom |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1268549A true GB1268549A (en) | 1972-03-29 |
Family
ID=10276460
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2848969A Expired GB1268549A (en) | 1969-06-05 | 1969-06-05 | Improvements in and relating to dispersion-hardened metals and alloys, and articles made therefrom |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1268549A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106314462A (en) * | 2016-08-30 | 2017-01-11 | 江苏同庆车辆配件有限公司 | Composite floor for railway box car |
-
1969
- 1969-06-05 GB GB2848969A patent/GB1268549A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106314462A (en) * | 2016-08-30 | 2017-01-11 | 江苏同庆车辆配件有限公司 | Composite floor for railway box car |
CN106314462B (en) * | 2016-08-30 | 2018-08-07 | 江苏同庆车辆配件有限公司 | A kind of box car composite floor board |
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