CN102134692B - Preparation method of TiB whisker-reinforced titanium-based composite material - Google Patents
Preparation method of TiB whisker-reinforced titanium-based composite material Download PDFInfo
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- CN102134692B CN102134692B CN201110118962A CN201110118962A CN102134692B CN 102134692 B CN102134692 B CN 102134692B CN 201110118962 A CN201110118962 A CN 201110118962A CN 201110118962 A CN201110118962 A CN 201110118962A CN 102134692 B CN102134692 B CN 102134692B
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Abstract
The invention discloses a preparation method of a TiB whisker-reinforced titanium-based composite material, which is characterized by comprising the following steps of: a, selecting, by weight percent, 10 to 50% of Ti powder, 10 to 50% of B powder, 2 to 4% of solvated additive Al powder and 30 to 75% of Ti or Ti alloy; b, uniformly mixing and compacting the Ti powder, the B powder and the solvated additive Al powder selected in the step a at first to obtain a mixture, then subjecting the mixture and the Ti or Ti alloy together to vacuum induction melting in a water-cooling copper crucible; reacting the Ti powder and the B powder at 800 to 950 DEG C under the acceleration of the solvated additive, preserving heat for 30 minutes and then generating a tiny TiB ceramic fiber reinforced phase; and continuing heating up to 1680-1750 DEG C so that the Ti or Ti alloy matrix is melted and is uniformly mixed with the TiB ceramic fiber reinforced phase under the action of electromagnetic agitation so as to prepare a Ti-based composite material melt, and performing casting formation on the Ti-based composite material melt.
Description
Technical field
The present invention relates to the preparation of metal-base composites, relate to the preparation method that a kind of TiB whisker strengthens titanium matrix composite specifically.
Background technology
The Ti based composites can obviously improve the microstructure (substructure, dislocation desity and configuration and grain-size etc.) of Ti alloy substrate; And then the normal temperature and the mechanical behavior under high temperature of raising matrix; Have more excellent specific tenacity, specific rigidity and good wear-resisting, anti-corrosion and heat resistance ability, have very wide application prospect at aerospace field.Adopt the Ti based composites to replace conventional alloys, can increase substantially mover thrust-weight ratio, cruise duration and the penetration ability of aircraft, guided missile, be used for weight and fuel consumption that satellite and space station can significantly reduce launch vehicle.Therefore the application of Ti based composites in fields such as aerospace will have huge potential economic benefit and military value.
Summary of the invention
The object of the invention is just in order to provide a kind of method that the TiB whisker strengthens titanium matrix composite that is used to prepare.
The object of the invention can be realized through following technique measures:
The preparation method that TiB whisker of the present invention strengthens titanium matrix composite comprises the steps:
A, get Ti powder 10 ~ 50%, B powder 10 ~ 50% and solvation additive A l powder 2 ~ 4%, Ti or Ti alloy 30 ~ 75% by weight percentage;
B, the Ti powder of at first step a being got, B powder and the compacting of solvation additive A l powder mixing are again with Ti or the vacuum induction melting in water jacketed copper crucible of Ti alloy; Said Ti powder, B powder are reacting under 800 ~ 950 ℃ under the promotion of solvation additive, generate tiny TiB ceramic fiber wild phase behind the insulation 30min; Continue heat temperature raising to 1680 ~ 1750 ℃ afterwards, make the fusing of Ti or Ti alloy substrate and under function composite by electromagnetic stirring with TiB ceramic enhancement phase uniform mixing, make Ti based composites melt, and castable.
The present invention is through controlling Ti powder, B powder and solvation additive powder blending ratio, temperature of reaction and reaction times, and then the size of control TiB fortifying fibre; The intense electromagnetic stirring action of induction melting is distributed in the disperse of TiB fiber in the Ti melt simultaneously; Water jacketed copper crucible has also avoided the crucible in the common induction melting process to pollute; The chemical compatibility of TiB and Ti alloy is better in addition, and this Ti-TiB founding in-situ composite that just makes this technology make has the interface of cleaning and distribution uniformly.
The TiB wild phase is tiny whisker in the TiB/Ti based composites that employing this method is prepared, and is about 10 ~ 15 μ m, the about 1.5 μ m of diameter.
Beneficial effect of the present invention is following:
The dispersion-strengthened action of the prepared TiB whisker that goes out of the present invention will make this matrix material have excellent normal temperature and mechanical behavior under high temperature.This titanium matrix composite is with low cost; Prepare forming integrated; The quick completion; Can conveniently produce in batches, and mechanical property is excellent, the blade, hypervelocity missile empennage, housing, satellite support etc. that can be used for aircraft, guided missile, rocket, tank turbine engine require high temperature, high-strength, light-weight aerospacecraft complex component.
Embodiment
To combine embodiment to do below the present invention further describes:
Embodiment 1:
A, get titanium (Ti) powder 16%, boron (B) powder 16%, solvation additive-aluminium (Al) powder 3% and titanium alloy 65% by weight percentage;
B, at first with Ti powder, B powder, the compacting of three kinds of powder mixings of solvation additive A l powder; Afterwards again with titanium alloy vacuum induction melting in water jacketed copper crucible; Be incubated 30min down at 800 ~ 850 ℃, make Ti powder, B powder under the promotion of solvation additive A l powder, react, generate tiny TiB ceramic fiber wild phase; Heat with continued; Make titanium alloy substrate fusing under 1680 ~ 1700 ℃ the condition and under function composite by electromagnetic stirring with TiB ceramic enhancement phase uniform mixing, make Ti based composites melt, and castable.
The TiB wild phase is tiny whisker in the TiB/Ti alloy-base composite material that employing this method is prepared, and is about 10 ~ 15 μ m, the about 1.5 μ m of diameter.
Embodiment 2:
A, get Ti powder 16%, B powder 16%, solvation additive A l powder 3% and Titanium Sponge 40-60 mesh 65% by weight percentage;
B, at first with Ti powder, B powder, the compacting of three kinds of powder mixings of solvation additive A l powder; Afterwards again with Titanium Sponge 40-60 mesh vacuum induction melting in water jacketed copper crucible; Be incubated 30min down at 900 ~ 950 ℃, make Ti powder, B powder under the promotion of solvation additive A l powder, react, generate tiny TiB ceramic fiber wild phase; Heat with continued; Make Titanium Sponge 40-60 mesh matrix fusing under 1680 ~ 1700 ℃ the condition and under function composite by electromagnetic stirring with TiB ceramic enhancement phase uniform mixing, make Ti based composites melt, and castable.
The TiB wild phase is tiny whisker in the TiB/Ti based composites that employing this method is prepared, and is about 10 ~ 15 μ m, the about 1.5 μ m of diameter.
Embodiment 3:
A, get titanium (Ti) powder 20%, boron (B) powder 25%, solvation additive-aluminium (Al) powder 3% and titanium alloy 52% by weight percentage;
B, at first with Ti powder, B powder, the compacting of three kinds of powder mixings of solvation additive A l powder; Afterwards again with titanium alloy vacuum induction melting in water jacketed copper crucible; Be incubated 30min down at 800 ~ 850 ℃, make Ti powder, B powder under the promotion of solvation additive A l powder, react, generate tiny TiB ceramic fiber wild phase; Heat with continued; Make titanium alloy substrate fusing under 1680 ~ 1700 ℃ the condition and under function composite by electromagnetic stirring with TiB ceramic enhancement phase uniform mixing, make Ti based composites melt, and castable.
The TiB wild phase is tiny whisker in the TiB/Ti alloy-base composite material that employing this method is prepared, and is about 10 ~ 15 μ m, the about 1.5 μ m of diameter.
Embodiment 4:
A, get titanium (Ti) powder 28%, boron (B) powder 28%, solvation additive-aluminium (Al) powder 4% and titanium alloy 40% by weight percentage;
B, at first with Ti powder, B powder, the compacting of three kinds of powder mixings of solvation additive A l powder; Afterwards again with titanium alloy vacuum induction melting in water jacketed copper crucible; Be incubated 30min down at 800 ~ 850 ℃, make Ti powder, B powder under the promotion of solvation additive A l powder, react, generate tiny TiB ceramic fiber wild phase; Heat with continued; Make titanium alloy substrate fusing under 1680 ~ 1700 ℃ the condition and under function composite by electromagnetic stirring with TiB ceramic enhancement phase uniform mixing, make Ti based composites melt, and castable.
The TiB wild phase is tiny whisker in the TiB/Ti alloy-base composite material that employing this method is prepared, and is about 10 ~ 15 μ m, the about 1.5 μ m of diameter.
Claims (1)
1. a TiB whisker strengthens the preparation method of titanium matrix composite, and it is characterized in that: said method comprises the steps:
A, get Ti powder 10 ~ 50%, B powder 10 ~ 50% and solvation additive A l powder 2 ~ 4%, Ti or Ti alloy 30 ~ 75% by weight percentage;
B, the Ti powder of at first step a being got, B powder and the compacting of solvation additive A l powder mixing are again with Ti or the vacuum induction melting in water jacketed copper crucible of Ti alloy; Said Ti powder, B powder are reacting under 800 ~ 950 ℃ under the promotion of solvation additive, generate tiny TiB ceramic fiber wild phase behind the insulation 30min; Continue heat temperature raising to 1680 ~ 1750 ℃ afterwards, make the fusing of Ti or Ti alloy substrate and under function composite by electromagnetic stirring with TiB ceramic enhancement phase uniform mixing, make Ti based composites melt, and castable;
C, said whisker length are 10～15 μ m, and diameter is 1.5 μ m.
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| CN201110118962A CN102134692B (en) | 2011-05-10 | 2011-05-10 | Preparation method of TiB whisker-reinforced titanium-based composite material |
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| CN201110118962A CN102134692B (en) | 2011-05-10 | 2011-05-10 | Preparation method of TiB whisker-reinforced titanium-based composite material |
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| CN102134692A CN102134692A (en) | 2011-07-27 |
| CN102134692B true CN102134692B (en) | 2012-09-05 |
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| CN104357701B (en) * | 2014-10-13 | 2016-08-31 | 北京科技大学 | A kind of preparation method of TiAl/TiC nano composite material |
| CN110157998B (en) * | 2019-05-27 | 2021-02-02 | 太原理工大学 | Superhard self-lubricating cutter material and preparation method thereof |
| CN112359297A (en) * | 2020-07-07 | 2021-02-12 | 南昌航空大学 | Short carbon fiber reinforced Ti2Preparation method of AlNb composite material |
| CN114150238B (en) * | 2021-11-26 | 2022-08-09 | 中国航发北京航空材料研究院 | Ti-Al-Nb-based composite material and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101333607A (en) * | 2008-07-31 | 2008-12-31 | 哈尔滨工业大学 | Process for preparing TiBw/Ti alloy-based composite material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101333607A (en) * | 2008-07-31 | 2008-12-31 | 哈尔滨工业大学 | Process for preparing TiBw/Ti alloy-based composite material |
Non-Patent Citations (2)
| Title |
|---|
| 李邦盛等.原位TiB晶须增强钛基复合材料的磨损机制.《摩擦学学报》.2005,第25卷(第1期),18-22. * |
| 李邦盛等.原位钛基复合材料中TiB的生成热力学及动力学.《宇航材料工艺》.2005,(第4期),42-46. * |
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