CN1088624A - The high-temp plastic Ni 3 Al alloy that contains rare earth element - Google Patents
The high-temp plastic Ni 3 Al alloy that contains rare earth element Download PDFInfo
- Publication number
- CN1088624A CN1088624A CN 92113863 CN92113863A CN1088624A CN 1088624 A CN1088624 A CN 1088624A CN 92113863 CN92113863 CN 92113863 CN 92113863 A CN92113863 A CN 92113863A CN 1088624 A CN1088624 A CN 1088624A
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- China
- Prior art keywords
- alloy
- rare earth
- earth element
- temp plastic
- contains rare
- Prior art date
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- 229910052761 rare earth metal Inorganic materials 0.000 title claims abstract description 11
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 6
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 4
- 239000000956 alloy Substances 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims description 6
- 239000004615 ingredient Substances 0.000 claims 1
- 238000005275 alloying Methods 0.000 abstract 1
- 239000000470 constituent Substances 0.000 abstract 1
- 239000013078 crystal Substances 0.000 description 5
- 229910052796 boron Inorganic materials 0.000 description 3
- 229910000765 intermetallic Inorganic materials 0.000 description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910003310 Ni-Al Inorganic materials 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Heat Treatment Of Steel (AREA)
Abstract
The invention provides a kind of high-temp plastic Ni
3The Al alloy is characterized in that the following Ni 70～79 of alloying constituent, and Al 19～27, and B 0.8～2.0, rare earth element 0.05～0.3.Alloy provided by the present invention can make Ni
3Al improves 50～100% at the high-temp plastic of hot processing temperature.
Description
The present invention relates to intermetallic Ni-Al compound, particularly Ni 3 Al alloy.
It is good that intermetallic compound has a fusing point height, light specific gravity, hot strength, series of advantages such as antioxidant property excellence, but they often are highly brittle, and plasticity approaches zero, thereby can't practical application.Found the boron micro-alloyed Nl that makes from 1979
3Since the A malleableize, the research of intermetallic compound has entered a new stage.At present, generally believe that boron is malleableize Nl
3The key element of Al, Nl
3Add 0.1～0.5at%B among the Al, its temperature-room type plasticity can obviously improve, and reach about 35%, yet high-temp plastic is very poor, and high-temperature and durable is around in zero, Nl
3The characteristics of Al mainly are suitable for doing high-temperature structural material, and enduring quality is so poor, can not satisfy the needs on the engineering.
The object of the present invention is to provide a kind of Ni 3 Al alloy, have high-temp plastic preferably.
Main contents of the present invention have provided a kind of alloy, contain following elemental composition (below the atomic percent all with)
Nl Al B rare earth element
71-79 19-28 0.6-2.0 0.05～0.3
Rare earth element can be Y, Ce, mishmetal etc., can also add Zr and Cr, to increase plasticity and intensity.Proportioning components is as follows:
NI Al B Zr Cr rare earth element
71-74 19-22 0.1～2.0 0.5-2.0 6-8 0.05～0.3
Metallographicobservation finds that rare earth element can crystal grain thinning, and they are at intermetallic compound Nl
5Also gather partially at crystal boundary as in steel alloy, tending among the Al, not only changed Nl
5The Chemical Composition of Al crystal boundary forms the atomic arrangement that has also changed crystal boundary, thereby grain boundary dislocation is changed, and has promptly increased the mobility of grain boundary dislocation, improves the consistency of crystal boundary slippage.Both comprehensive actions have reduced boundary stress concentrates, thereby has improved Nl
3High-temp plastic.Experimental result shows, after the adding proper amount of rare-earth, can make Nl
3Al improves 50～100% at the high-temp plastic of hot processing temperature (1100 ℃).Be described in detail the present invention below by embodiment.
Embodiment 1
Composition Nl, 75.4; Al, 24.4; B, 0.1; Y, 0.1
1100 ℃ of tensile properties
σ
b（MPa），360;σ
0.2（MPa）330;δ（%）2.1;
Embodiment 2
Composition Nl, 75.35; Al, 24.5; B, 0.1; Ce, 0.05
1100 ℃ of tensile properties:
σ
b（MPa），350;σ
0.2（MPa），335;δ（%），1.0;
Embodiment 3
Composition Ni, 75.4; Al, 24.2; B, 0.1; Mishmetal, 0.3
1100 ℃ are drawn performance:
σ
b（MPa），390;σ
0.2（MPa），320;δ（%），2.0;
Claims (2)
1, a kind of high-temp plastic Ni 3 Al alloy that contains rare earth element is characterized in that alloy ingredient is as follows, and percentage composition is (atomic percent, below all with):
Ni Al B rare earth element
71～79 19～27 0.8～2.0 0.05～0.3
Rare ten elements can be Y, Ce, mishmetal etc.
2, by the described alloy of claim 1, it is characterized in that also containing Z and Cr, proportioning components is as follows:
NI Al B Zr Cr rare earth element
71-74 19-22 0.1～2.0 0.5-2.0 6-8 0.05～0.3
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92113863 CN1088624A (en) | 1992-12-25 | 1992-12-25 | The high-temp plastic Ni 3 Al alloy that contains rare earth element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92113863 CN1088624A (en) | 1992-12-25 | 1992-12-25 | The high-temp plastic Ni 3 Al alloy that contains rare earth element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1088624A true CN1088624A (en) | 1994-06-29 |
Family
ID=4946627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92113863 Pending CN1088624A (en) | 1992-12-25 | 1992-12-25 | The high-temp plastic Ni 3 Al alloy that contains rare earth element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1088624A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101979693A (en) * | 2010-11-16 | 2011-02-23 | 谭丽霞 | Nano-crystalline NiAl-Al2O3-Y composite material and preparation method thereof |
| US20130217568A1 (en) * | 2012-02-20 | 2013-08-22 | Saudi Basic Industries Corporation | Oxidative dehydrogenation of olefins catalyst and methods of making and using the same |
| US9731280B2 (en) | 2012-11-21 | 2017-08-15 | Shanghai Huayi Acrylic Acid Co. Ltd. | Ferrite catalyst and preparation method thereof |
-
1992
- 1992-12-25 CN CN 92113863 patent/CN1088624A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101979693A (en) * | 2010-11-16 | 2011-02-23 | 谭丽霞 | Nano-crystalline NiAl-Al2O3-Y composite material and preparation method thereof |
| US20130217568A1 (en) * | 2012-02-20 | 2013-08-22 | Saudi Basic Industries Corporation | Oxidative dehydrogenation of olefins catalyst and methods of making and using the same |
| US9731280B2 (en) | 2012-11-21 | 2017-08-15 | Shanghai Huayi Acrylic Acid Co. Ltd. | Ferrite catalyst and preparation method thereof |
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| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |