CN103842534A - Improved aluminum casting alloys containing vanadium - Google Patents
Improved aluminum casting alloys containing vanadium Download PDFInfo
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- CN103842534A CN103842534A CN201280043338.4A CN201280043338A CN103842534A CN 103842534 A CN103842534 A CN 103842534A CN 201280043338 A CN201280043338 A CN 201280043338A CN 103842534 A CN103842534 A CN 103842534A
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- ceralumin
- alloy
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- silicon
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- 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
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
-
- 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
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
- C22C21/04—Modified aluminium-silicon alloys
Abstract
Improved aluminum casting alloys having vanadium are disclosed. The new alloys generally include from 4.0 to 10.0 wt. % Si, from 0.01 to 0.15 wt. % V, and up to 0.10 wt. % Fe, among other elements. The improved aluminum casting alloys may realize, for example, improved strength and/or elongation properties.
Description
the cross reference of related application
Present patent application requires the name of submission on September 19th, 2011 to be called the U.S. Provisional Patent Application No.61/536 of " ceralumin that comprises vanadium of improvement " (IMPROVED ALUMINUM CASTING ALLOYS CONTAINING VANADIUM), 451 right of priority, its full content is incorporated herein by reference.
Background technology
Ceralumin is for multiple application.But, improvement ceralumin a kind of performance and do not reduce other performances be difficult to realize.For example, it is difficult putting forward heavy alloyed intensity and do not fall low-alloyed ductility.
Summary of the invention
Present patent application relates generally to the ceralumin (also referred to as master alloy) of improvement and manufactures the method for this alloy.Specifically, present patent application relates to the ceralumin with vanadium and optional iron.In short, the novel aluminum casting alloy that comprises vanadium and optional iron has been realized the bonding properties of improvement.
Novel aluminum casting alloy generally comprises from about vanadium of 0.01 to 0.15wt.% (V).In one embodiment, novel aluminum casting alloy can comprise from about vanadium of 0.03 to 0.12wt.%.In another embodiment, novel aluminum casting alloy can comprise about 0.05 to 0.10wt.% vanadium.By the vanadium in ceralumin is maintained in above-mentioned content, optionally there is iron, can realize the bonding properties of improvement.For example, ceralumin can be realized the combination of intensity and extensibility and other performances of improvement.
In a kind of scheme, the iron that ceralumin comprises no more than 0.10wt.%.In one embodiment, the iron that ceralumin comprises no more than 0.08wt.%.In another embodiment, the iron that ceralumin comprises no more than 0.05wt.%.In certain embodiments, iron is included in alloy.In these embodiments, ceralumin comprises at least iron of 0.01wt.%.In one embodiment, the iron that ceralumin comprises 0.01-0.10wt.%.In another embodiment, the iron that ceralumin comprises 0.01-0.08wt.%.
In a kind of scheme, ceralumin is the silica-based casting alloy of the vanadium that comprises above-mentioned content, optionally has iron.Silica-based casting alloy can be any 3xx series casting alloy well known by persons skilled in the art.In this scheme, silica-based casting alloy comprises from 4.0 to 10.0wt.% silicon, and silicon be in casting alloy except aluminium topmost alloying element.Silica-based casting alloy can optionally comprise the second element, element and other elements that define below.In one embodiment, silica-based casting alloy comprises from about silicon of 6.0 to 9.0wt.%.In one embodiment, silica-based casting alloy comprises from about silicon of 6.5 to 8.5wt.%.
Silicon-base aluminum alloy can comprise one or more the second elements.The group that these second elements select free magnesium, copper, zinc, nickel and combination thereof to form.For multiple object, for example for example,, for strengthening (, solution strengthening, precipitation strength and component strengthening), the second element can be included in alloy.In a kind of scheme, silica-based casting alloy comprises magnesium.In one embodiment, silica-based casting alloy comprises magnesium, and is the magnesium within the scope of from about 0.05 to 1.5wt.%.In other embodiments, silica-based casting alloy comprises the magnesium as impurity, that is, and and the magnesium of no more than 0.04wt.%.
In a kind of scheme, silica-based casting alloy comprises copper.In one embodiment, silica-based casting alloy comprises copper, and is the copper within the scope of from about 0.40 to 5.0wt.%.In other embodiments, silica-based casting alloy comprises the copper as impurity, that is, and and the copper of no more than 0.39wt.%.
In a kind of scheme, silica-based casting alloy comprises zinc.In one embodiment, silica-based casting alloy comprises zinc, and is the zinc within the scope of from about 0.25 to 5.0wt.%.In other embodiments, silica-based casting alloy comprises the zinc as impurity, that is, and and the zinc of no more than 0.24wt.%.
In a kind of scheme, silica-based casting alloy comprises nickel.In one embodiment, silica-based casting alloy comprises nickel, and is the nickel within the scope of from about 0.50 to 3.0wt.%.In other embodiments, silica-based casting alloy comprises the nickel as impurity, that is, and and the nickel of no more than 0.49wt.%.
Silicon-base aluminum alloy can comprise element, for example manganese, chromium, titanium, strontium, sodium, antimony and combination thereof.For different objects, can be to adding one or more these element in alloy.For example, manganese and/or chromium can be included in silicon-base aluminum alloy, to avoid the glutinous mould (die soldering) of mould in high pressure diecasting.Titanium can be included in silicon-base aluminum alloy for grain refining.Can add strontium, sodium and/or antimony particle modified for silicon.In these embodiments, silicon-base aluminum alloy comprises the element of every kind of no more than about 1.0wt.% conventionally.In the time comprising element in alloy, alloy comprises at least approximately element (for example, the Mn of 0.01-1.0wt.%) of 0.01wt.% conventionally.In one embodiment, silicon-base aluminum alloy comprises 0.01 to 0.8wt.% manganese.In one embodiment, silicon-base aluminum alloy comprises 0.01 to 0.5wt.% chromium.In one embodiment, silicon-base aluminum alloy comprises 0.01 to 0.25wt.% titanium.In one embodiment, silicon-base aluminum alloy comprises 0.001 to 0.1wt.% strontium.In one embodiment, silicon-base aluminum alloy comprises 0.001 to 0.1wt.% sodium.In one embodiment, silicon-base aluminum alloy comprises 0.001 to 0.1wt.% antimony.
Select in addition or as the another kind of titanium grain refining, silicon-base aluminum alloy can comprise TiB2 and/or TiC as grain-refining agent.In one embodiment, silicon-base aluminum alloy comprises 0.001 to 0.03wt.% boron.In one embodiment, silicon-base aluminum alloy comprises 0.001 to 0.03wt.% carbon.
Silicon-base aluminum alloy can not basically contain other elements (for example, reductor, impurity).Other elements refer to except aluminium, outside above-mentioned silicon, vanadium, iron, the second element and element, can be included in any other elements in the periodictable in silicon-base aluminum alloy.In the context of this section, phrase " does not basically contain " arbitrary element referring in other elements that aluminium alloy body comprises every kind of no more than 0.25wt.%, and total combined amount of these other elements is no more than 0.50wt.%.In one embodiment, each of these other elements is all no more than separately about 0.10wt.% in silicon-base aluminum alloy, and total combined amount of these other elements is no more than about 0.35wt.% in silicon-base aluminum alloy.In another embodiment, each of these other elements is all no more than separately about 0.05wt.% in silicon-base aluminum alloy, and total combined amount of these other elements is no more than about 0.15wt.% in silicon-base aluminum alloy.In another embodiment, each of these other elements is all no more than separately about 0.03wt.% in silicon-base aluminum alloy, and total combined amount of these other elements is no more than about 0.10wt.% in silicon-base aluminum alloy.
Silicon-base aluminum alloy can be for dissimilar casting technique, for example sand mold casting, and precision-investment casting (ceramic shell mo(u)ld), lost foam casting, permanent mold casting, high pressure diecasting, extrusion casting and semi-solid casting, only slightly lift several examples here.The silicon-base aluminum alloy Secondary Dendrite Arm Spacing (SDAS) that different casting techniques are manufactured can be in for example, for example, scope from 1 micron (, having rapid solidification speed) to 100 microns (, having solidification rate at a slow speed).For example, can use standard Metallographic Techniques and " intercept method " to determine SDAS.Intercept method comprises that one, (1) work is parallel to the straight line of a dendrite; (2) calculate the number that is cut dendritic arm; (3) use following equation to calculate the number/magnification of concrete SDAS:SDAS=line length/arm; And (4) repeat (at least 5 times) for several times and results averaged are obtained to total SDAS.
These and other aspects of this new technology and advantage and novel feature will partly be set forth in ensuing specification sheets, and will become apparent after those skilled in the art study following specification sheets and accompanying drawing, or one or more embodiment of the technology that can provide by enforcement present disclosure understand.
Accompanying drawing explanation
Fig. 1 shows the chart of the performance of different silica-based ceralumins.
Fig. 2 shows the chart of the performance of different silica-based ceralumins.
Fig. 3 a-3b shows the photo of the microstructure of different silica-based ceralumins.
embodiment
Cast several silica-based ceralumin with the component as listed in following table 1 by sand casting process.
the component (all numerical value by percentage to the quality) of the silica-based ceralumin of table 1-
After casting, in an identical manner every kind of alloy is tested the performance (, at F state) of alloy.Result as shown in Figure 1.The mean value of given take off data comprises tensile yield strength data
the ultimate tensible strength degrees of data representing with MPa
with Brinell hardness data HBW5/250
and, provide average unit elongation, wherein,
(curve below) refers to the average unit elongation of the data based on apparatus measures, and wherein,
(curve above) refers to the average unit elongation of the data based on manual measurement.The alloy 1 of the V that contains 0.08wt.% and the Fe of 0.08wt.% has than the better intensity of alloy 2-3 and unit elongation, obtains the limit tensile strength of about 143MPa and the unit elongation of about 4.2-4.4%.By contrast, alloy 2-3 has only obtained the ultimate tensile strength of about 123-130MPa and much lower unit elongation (2.6-2.8%).
Also by these alloys (variant 1-3) timeliness to T6 state.Measure identical mechanical property as shown in Figure 1
fig. 2 shows measuring result, and (a kind of processing adopts solution heat treatment shrend after 5 hours at 540 ℃, then be at 140 ℃ 3 hours and at 160 ℃ the two step artificial agings of 6 hours, a kind of processing adopts solution heat treatment air cooling after 3.5 hours at 540 ℃, is then the step artificial aging of 5 hours at 185 ℃).
In addition, the alloy 1 of the vanadium that contains 0.08wt.% and the iron of 0.08wt.% is surpassing alloy 2-3 aspect intensity and unit elongation, and it has the intensity higher than alloy 2-3 and unit elongation.
Figure below 3a-3b shows the microstructure of alloy 1-3.
the porosity (all porosity value are in per-cent) of the silica-based casting alloy of table 2-
Measure | Alloy 1 | Alloy 2 | Alloy 3 |
1 | 0.88 | 5.03 | 1.57 |
2 | 2.04 | 3.96 | 1.63 |
3 | 1.91 | 6.32 | 1.31 |
4 | 1.36 | 5.9 | 1.44 |
5 | 1.87 | 4.84 | 1.17 |
?
6 | 1.13 | 7.19 | 1.19 |
7 | 0.84 | 2.92 | 1.37 |
8 | 1.28 | 3.48 | 1.07 |
9 | 1.26 | 4.05 | 2.18 |
10 | 0.96 | 4.83 | 1.59 |
11 | 0.67 | 3.71 | 0.57 |
12 | ? | 5.93 | 1.37 |
13 | ? | 3.08 | 1.91 |
14 | ? | 1.94 | 1.31 |
15 | ? | 1.86 | 0.93 |
16 | ? | 1.49 | 0.92 |
17 | ? | 1.09 | ? |
18 | ? | 2.11 | ? |
Mean value | 1.291 | 3.874 | 1.346 |
Standard deviation (STDEV) | 0.467 | 1.792 | 0.392 |
Although the disclosure is described multiple embodiments in detail, those skilled in the art can expect improvement and the variation of these embodiments obviously.But, should be clear and definite be that these improvement and variation drop in spirit and scope disclosed herein.
Claims (18)
1. a ceralumin, comprises:
Silicon (Si) from 4.0 to 10.0wt.%;
Vanadium (V) from 0.01 to 0.15wt.%;
The iron of 0.10wt.% (Fe) at the most;
One or more optional following second elements:
Magnesium (Mg) from 0.05 to 1.5wt.%;
Copper (Cu) from 0.40 to 5.0wt.%;
Zinc (Zn) from 0.25 to 5.0wt.%; With
Nickel (Ni) from 0.50 to 3.0wt.%;
One or more following element of every kind of optional 0.01-1.0wt.%: manganese (Mn), chromium (Cr), titanium (Ti), strontium (Sr), sodium (Na) and antimony (Sb);
Optional from 0.001 to 0.03wt.% boron (B);
Optional from 0.001 to 0.03wt.% carbon (C);
Any other elements of every kind of no more than 0.25wt.%, total combined amount of these other elements is no more than 0.50wt.%;
Surplus is aluminium and impurity.
2. ceralumin according to claim 1, comprises from 0.03 to 0.12wt.% V.
3. ceralumin according to claim 1, comprises from 0.05 to 0.10wt.% V.
4. according to the ceralumin described in any one in claim 1-3, the iron that comprises no more than 0.08wt.%.
5. according to the ceralumin described in any one in claim 1-3, the iron that comprises no more than 0.05wt.%.
6. according to the ceralumin described in any one in claim 1-5, comprise at least iron of 0.01wt.%.
7. according to the ceralumin described in any one in claim 1-6, comprise from 6.0 to 9.0wt.% silicon.
8. according to the ceralumin described in any one in claim 1-6, comprise from 6.5 to 8.5wt.% silicon.
9. according to the ceralumin described in any one in claim 1-8, comprise from 0.01 to 0.8wt.% manganese.
10. according to the ceralumin described in any one in claim 1-9, comprise from 0.01 to 0.5wt.% chromium.
11. according to the ceralumin described in any one in claim 1-10, comprises from 0.01 to 0.25wt.% titanium.
12. according to the ceralumin described in any one in claim 1-11, comprises from 0.001 to 0.1wt.% strontium.
13. according to the ceralumin described in any one in claim 1-12, comprises from 0.001 to 0.1wt.% sodium.
14. according to the ceralumin described in any one in claim 1-13, comprises from 0.001 to 0.1wt.% antimony.
15. according to the ceralumin described in any one in claim 1-14, it is characterized in that, and other elements that described alloy comprises every kind of no more than 0.10wt.%, total combined amount of these other elements is no more than 0.35wt.%.
16. according to the ceralumin described in any one in claim 1-14, it is characterized in that, and other elements that described alloy comprises every kind of no more than 0.05wt.%, total combined amount of these other elements is no more than 0.15wt.%.
17. according to the ceralumin described in any one in claim 1-14, it is characterized in that, and other elements that described alloy comprises every kind of no more than 0.03wt.%, total combined amount of these other elements is no more than 0.10wt.%.
18. according to the ceralumin described in any one in claim 1-17, it is characterized in that, described alloy is realized the Secondary Dendrite Arm Spacing (SDAS) from 1 micron to 100 microns.
Applications Claiming Priority (3)
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US201161536451P | 2011-09-19 | 2011-09-19 | |
US61/536,451 | 2011-09-19 | ||
PCT/EP2012/068465 WO2013041584A2 (en) | 2011-09-19 | 2012-09-19 | Improved aluminum casting alloys containing vanadium |
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US (1) | US20140234160A1 (en) |
EP (1) | EP2758557B1 (en) |
CN (1) | CN103842534A (en) |
WO (1) | WO2013041584A2 (en) |
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CN108103332A (en) * | 2017-06-12 | 2018-06-01 | 吉林大学 | A kind of method of the high tough as-cast aluminum alloy of low temperature stabilization processing |
CN108531789A (en) * | 2018-06-04 | 2018-09-14 | 合肥大麦灯箱器材有限公司 | A kind of high-strength endurance aluminum alloy doorframe and its preparation process |
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- 2012-09-19 CN CN201280043338.4A patent/CN103842534A/en active Pending
- 2012-09-19 EP EP12762575.4A patent/EP2758557B1/en not_active Revoked
- 2012-09-19 WO PCT/EP2012/068465 patent/WO2013041584A2/en active Application Filing
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2014
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CN108103332A (en) * | 2017-06-12 | 2018-06-01 | 吉林大学 | A kind of method of the high tough as-cast aluminum alloy of low temperature stabilization processing |
CN108531789A (en) * | 2018-06-04 | 2018-09-14 | 合肥大麦灯箱器材有限公司 | A kind of high-strength endurance aluminum alloy doorframe and its preparation process |
CN111560543A (en) * | 2020-04-21 | 2020-08-21 | 北京联合大学 | Aluminum-silicon-based precision casting material and preparation method thereof |
CN111560543B (en) * | 2020-04-21 | 2021-09-17 | 北京联合大学 | Aluminum-silicon-based precision casting material and preparation method thereof |
CN111876637A (en) * | 2020-07-08 | 2020-11-03 | 上海永茂泰汽车科技股份有限公司 | Heat-resistant and wear-resistant Al-Si-Cu-Ni aluminum alloy and preparation method and application thereof |
CN112553510A (en) * | 2020-11-30 | 2021-03-26 | 华南理工大学 | Microalloying die-casting aluminum-silicon alloy and preparation method thereof |
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EP2758557A2 (en) | 2014-07-30 |
US20140234160A1 (en) | 2014-08-21 |
WO2013041584A2 (en) | 2013-03-28 |
WO2013041584A3 (en) | 2013-06-27 |
EP2758557B1 (en) | 2015-11-04 |
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