WO1993025719A1 - Metal matrix composite - Google Patents
Metal matrix compositeInfo
- Publication number
- WO1993025719A1 WO1993025719A1 PCT/GB1993/001094 GB9301094W WO9325719A1 WO 1993025719 A1 WO1993025719 A1 WO 1993025719A1 GB 9301094 W GB9301094 W GB 9301094W WO 9325719 A1 WO9325719 A1 WO 9325719A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- weight
- metal matrix
- alloy
- composite material
- matrix composite
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/02—Alloys containing metallic or non-metallic fibres or filaments characterised by the matrix material
- C22C49/04—Light metals
- C22C49/06—Aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
Definitions
- the present invention relates to metal matrix composite materials and in particular to improvements in aluminium matrix alloys for such materials
- Metal matrix composite materials comprising aluminium-copper- magnesium alloys which contain reinforcements of particulate silicon carbide are currently attracting a great deal of interest amongst aerospace manufacturers. Such materials have the potential to become widely adopted in applications where increased strength and stiffness are required in comparison to conventional aluminium alloys.
- one of the drawbacks of metal matrix composite materials is that a sufficient quantity of the reinforcing material must be incorporated to achieve significant weight savings or improvements in performance. Addition on this scale is apt to have an adverse effect on certain properties, notably toughness and ductility.
- known composite materials of this type often exhibit a rapid natural ageing response following solution heat treatment, with the result that difficulties are encountered when post-form stretching techniques are used to make extruded product forms or the like.
- a metal matrix composite material comprising from 1 to 50% by weight of reinforcing material embedded in an alloy matrix, characterised in that the alloy matrix has the following composition in proportions by weight:
- the alloy matrix further comprises one of the grain refining additives from the group comprising zirconium, manganese or chromium in an amount up to 0. % by weight.
- the matrix alloy preferably contains from - 6% by weight of copper. Also, the proportion of grain refining additive is preferably from 0.05 to 0.2% by weight.
- the weight proportion of the reinforcing material is from 10 to 30%, more preferably from 1 to 25% and most especially from 18 to 22%.
- Suitable materials for the reinforcement include silicon carbide, alumina, boron, graphite, diamond and boron carbide. These may take the form particles, whiskers, short fibres or continuous fibres, depending upon the particular end use for which the composite material is intended.
- Figure 1 is a graph showing the effect of matrix alloy composition and natural ageing on the tensile properties of Al/Cu/Mg composites having 20% by weight of particulate SiC reinforcement
- Figure 2 is a graph showing the effect of natural ageing on the tensile properties of a metal matrix composite according to the invention comprising an Al-4.35%Cu matrix containing 20% by weight of particulate SiC reinforcement.
- Figure 3 is a graph showing the effect of matrix alloy composition and artificial ageing at 150°C on the tensile properties of composite materials corresponding to those used in Figure 1
- Figure 4 is a graph showing the effect of artificial ageing at 150°C in metal matrix composites containing 20% by weight of particulate SiC reinforcement in matrix alloys according to the invention.
- test samples used to obtain the experimental results shown in these graphs were produced from material which had been manufactured by a powder metallurgy route to produce billets 125mm long and 55mm in diameter.
- the billets had a silicon carbide content of 20% by weight, a particulate silicon carbide being used with a mean particle size of 3 ⁇ m.
- the billets were vacuum degassed for 1 hour at temperatures between 450 and 530°C, followed by hot isostatic pressing within the same temperature range.
- a suitable pressure range for the hot isostatic pressing stage is from 100 to 250 MPa.
- the billets used here were pressed at 250 MPa and then forged and hot rolled at 47 °C to a final sheet thickness of 2mm.
- Solution heat treatment was carried out for 40 minutes at 505°C in an air circulating furnace, followed by cold water quenching. Those specimens which were artificially aged were subjected to heat treatment at 150°C for times up to 1650 hours.
- magnesium free billets such as the reinforced Al-4.35% Cu sample whose behaviour is shown in Figures 2 and 4, forged without cracking after degassing and hot isostatically pressing at 530°C. Moreover, an improved surface finish with only minor edge cracks was obtained after hot rolling.
- the reinforced binary alloy specimen Al-4.35%Cu showed little or no change in 0.2% proof stress or tensile strength during natural ageing for times up to 1500 hours, as seen in Figure 2.
- the effect of copper and magnesium content on the tensile properties of corresponding Al/Cu/Mg sheets artificially aged at 150°C is shown in Figure 3-
- the 0.2% proof stresses of all the alloy variants studied were more sensitive to ageing than the tensile strengths, reaching a plateau after 120 hours.
- Higher copper content specimens showed an 80 MPa greater tensile strength in the peak aged condition, but this differential was reduced after ageing for 1600 hours.
- the artificial ageing behaviour of reinforced binary Al/Cu specimens is illustrated with reference to Figure 4.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/347,481 US5529748A (en) | 1992-06-15 | 1993-05-27 | Metal matrix composite |
JP6501223A JPH07507840A (en) | 1992-06-15 | 1993-05-27 | metal matrix composite |
EP93913202A EP0650533A1 (en) | 1992-06-15 | 1993-05-27 | Metal matrix composite |
GB9424328A GB2283496B (en) | 1992-06-15 | 1993-05-27 | Metal matrix composite |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9212634A GB2267912A (en) | 1992-06-15 | 1992-06-15 | Metal matrix for composite materials |
GB9212634.1 | 1992-06-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1993025719A1 true WO1993025719A1 (en) | 1993-12-23 |
Family
ID=10717090
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB1993/001094 WO1993025719A1 (en) | 1992-06-15 | 1993-05-27 | Metal matrix composite |
Country Status (6)
Country | Link |
---|---|
US (1) | US5529748A (en) |
EP (1) | EP0650533A1 (en) |
JP (1) | JPH07507840A (en) |
CA (1) | CA2138168A1 (en) |
GB (2) | GB2267912A (en) |
WO (1) | WO1993025719A1 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2267912A (en) * | 1992-06-15 | 1993-12-22 | Secr Defence | Metal matrix for composite materials |
GB9804599D0 (en) * | 1998-03-05 | 1998-04-29 | Aeromet International Plc | Cast aluminium-copper alloy |
US6095754A (en) * | 1998-05-06 | 2000-08-01 | Applied Materials, Inc. | Turbo-Molecular pump with metal matrix composite rotor and stator |
CA2326228C (en) * | 1999-11-19 | 2004-11-16 | Vladimir I. Gorokhovsky | Temperature regulator for a substrate in vapour deposition processes |
US6684759B1 (en) | 1999-11-19 | 2004-02-03 | Vladimir Gorokhovsky | Temperature regulator for a substrate in vapor deposition processes |
US6412164B1 (en) | 2000-10-10 | 2002-07-02 | Alcoa Inc. | Aluminum alloys having improved cast surface quality |
DE10053664A1 (en) * | 2000-10-28 | 2002-05-08 | Leybold Vakuum Gmbh | Mechanical kinetic vacuum pump |
US6871700B2 (en) | 2000-11-17 | 2005-03-29 | G & H Technologies Llc | Thermal flux regulator |
CN114150193A (en) * | 2021-11-24 | 2022-03-08 | 广西大学 | Cr-modified heat-resistant aluminum-based alloy composite material and preparation method thereof |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5219535B2 (en) * | 1972-10-28 | 1977-05-28 | ||
GB1456050A (en) * | 1974-05-13 | 1976-11-17 | British Aluminium Co Ltd | Production of metallic articles |
DE2539684C1 (en) * | 1975-09-06 | 1985-10-10 | Diehl GmbH & Co, 8500 Nürnberg | Splinter shell for projectiles, warheads, ammunition and the like. |
NL7710775A (en) * | 1977-10-03 | 1979-04-05 | Philips Nv | CATHODEFOIL FOR ELECTROLYTIC CAPACITOR. |
JPS5524949A (en) * | 1978-08-11 | 1980-02-22 | Hitachi Ltd | Manufacture of graphite-containing aluminium alloy |
GB2065516B (en) * | 1979-11-07 | 1983-08-24 | Showa Aluminium Ind | Cast bar of an alumium alloy for wrought products having mechanical properties and workability |
EP0079749A3 (en) * | 1981-11-12 | 1984-04-25 | MPD Technology Corporation | Dispersion strengthened mechanically-alloyed aluminium-based alloy |
US4610733A (en) * | 1984-12-18 | 1986-09-09 | Aluminum Company Of America | High strength weldable aluminum base alloy product and method of making same |
US4629505A (en) * | 1985-04-02 | 1986-12-16 | Aluminum Company Of America | Aluminum base alloy powder metallurgy process and product |
US4597792A (en) * | 1985-06-10 | 1986-07-01 | Kaiser Aluminum & Chemical Corporation | Aluminum-based composite product of high strength and toughness |
IN168301B (en) * | 1986-09-02 | 1991-03-09 | Council Scient Ind Res | |
GB2267912A (en) * | 1992-06-15 | 1993-12-22 | Secr Defence | Metal matrix for composite materials |
-
1992
- 1992-06-15 GB GB9212634A patent/GB2267912A/en not_active Withdrawn
-
1993
- 1993-05-27 JP JP6501223A patent/JPH07507840A/en active Pending
- 1993-05-27 GB GB9424328A patent/GB2283496B/en not_active Expired - Lifetime
- 1993-05-27 CA CA002138168A patent/CA2138168A1/en not_active Abandoned
- 1993-05-27 EP EP93913202A patent/EP0650533A1/en not_active Withdrawn
- 1993-05-27 US US08/347,481 patent/US5529748A/en not_active Expired - Lifetime
- 1993-05-27 WO PCT/GB1993/001094 patent/WO1993025719A1/en not_active Application Discontinuation
Non-Patent Citations (2)
Title |
---|
CHEMICAL ABSTRACTS, vol. 107, no. 14, issued 1987, October 5 (Columbus, Ohio, U.S.A.), TAKE BAYASHI, Y. et al. "Aluminum alloy composites", page 256, column 1, the abstract no. 119669t, & Jpn. Kokai Tokkyo Koho JP 62 89 832 (87 89 832). * |
CHEMICAL ABSTRACTS, vol. 88, no. 14, issued 1978, April 3 (Columbus, Ohio, U.S.A.), VEDA, O. et al. "Aluminum master alloy containing ti- tanium, boron and sodium", page 256, column 2, the abstract no. 93643s, * |
Also Published As
Publication number | Publication date |
---|---|
GB9212634D0 (en) | 1992-07-29 |
GB2283496A (en) | 1995-05-10 |
JPH07507840A (en) | 1995-08-31 |
GB2267912A (en) | 1993-12-22 |
US5529748A (en) | 1996-06-25 |
GB2283496B (en) | 1996-02-28 |
GB9424328D0 (en) | 1995-03-01 |
EP0650533A1 (en) | 1995-05-03 |
CA2138168A1 (en) | 1993-12-23 |
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