CN1621184A - Powder metallurgy method of granule intensified titanium-base compound material - Google Patents
Powder metallurgy method of granule intensified titanium-base compound material Download PDFInfo
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- CN1621184A CN1621184A CN 200410103518 CN200410103518A CN1621184A CN 1621184 A CN1621184 A CN 1621184A CN 200410103518 CN200410103518 CN 200410103518 CN 200410103518 A CN200410103518 A CN 200410103518A CN 1621184 A CN1621184 A CN 1621184A
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Abstract
The powder metallurgical process for preparing Ti-base composite material with reinforcing granular phase features the addition of chromium carbide during preparing Ti alloy, with the C content being 5-15 vol%. Through mixing material, cold isostatic pressing formation, and vacuum sintering at 1200-1300 deg.c for 1-6 hr, the Ti alloy with reinforcing granular TiC phase is prepared. During the sintering, Ti and chromium carbide produce in-situ composing reaction to produce the reinforcing granular TiC phase. The emergence of the second granular phase fines the alloy crystal grains, blocks the expansion of cracks in the alloy and raises the performance of the alloy.
Description
Technical field
A kind of powder metallurgy process of granule intensified titanium-base compound material relates to a kind of powder metallurgy process, particularly contains the powder metallurgy process of the powder metallurgy titanium matrix composite of particle wild phase.
Background technology
Granule intensified titanium-base compound material goes out the valve valve of automobile engine because of having high specific strength, specific modulus and the high successful trial-production of anti-wear performance, connecting rod, and golf driving head plate, and skis etc.But because the composite material strength height, resistance of deformation is big, makes its processing become difficult point, thereby has limited the application of granule intensified titanium-base compound material.
Powder metallurgy is a kind of near-net-shape technology, avoids the tissue, the component segregation that occur in the fusion casting production process, the problem that crystal grain is thick, and the granularity of particle wild phase and volume fraction can be adjusted in the larger context.But because titanium is active high, powder surface very easily forms oxide-film, hinders its sintering densification, and the development of powder metallurgy granule intensified titanium-base compound material and application are restricted.Along with the development of high temperature insostatic pressing (HIP), technology such as powder injection-molded, the preparation of densified fully granule intensified titanium-base compound material has become possibility, but is subjected to the restriction of its preparation technology and equipment, and production efficiency is low, the cost height.
The original position synthesis technique is a kind of method that obtains granule intensified titanium-base compound material, and the composite of this method preparation has been avoided more helping guaranteeing the performance of material at inner cavity and the crackle of producing of particle wild phase.
Summary of the invention
The powder metallurgy process that the purpose of this invention is to provide the good low-cost granule intensified titanium-base compound material of a kind of room-temperature mechanical property.
The objective of the invention is to be achieved through the following technical solutions.
A kind of powder metallurgy process of granule intensified titanium-base compound material, it is characterized in that adopting the powder metallurgy titanium fashionable, in powder formulated, add chromium carbide, addition is counted 5Vol%-15Vol% with C content, behind the batch mixing, through cold isostatic compaction, make and contain particle wild phase TiC particle titanium alloy through 1200 ℃～1300 ℃, 1～6h vacuum-sintering.
Method of the present invention avoids adopting expensive high temperature insostatic pressing (HIP), powder injection molding process, select once sintered method,, utilize solid phase reaction to come original position to synthesize TiC particle wild phase by adding chromium carbide powder, and combine well with the interface of titanium alloy, thereby obtain high performance composite.
The titanium alloy of the inventive method comprises Ti-6Al-4V system, (Al:0.3wt% is also to extend to other α, alpha+beta or beta-titanium alloy Nd:1.0wt%) to Ti-Fe-Mo-Al for Fe:1wt%～3wt%, Mo:1wt%～3wt%.The content of carbon is C% 〉=0, C%≤15Vol%, and surplus is Ti and unavoidable impurities.
The preparation technology of titanium alloy of the present invention is the technology of conventional powder metallurgy pressing, sintering, and wherein carbon adds with the form of chromium carbide powder, and all known powder methods all can be used.Powder titanium matrix composite of the present invention is in sintering process, and titanium and chromium carbide generation in-situ synthesized reaction generate TiC particle wild phase, because the appearance of the second phase particle, refinement alloy grain, hindered the expansion of crackle in the alloy, thereby improved the performance of alloy.Detect its mechanical property, the room temperature tensile performance is: σ
b: 730～1330MPa, σ
0.2: 640～1280MPa, δ
5: 1.0～7.0%.By adding chromium carbide powder, utilize solid phase reaction to come the original position synthesis particle wild phase, use the complex element method, obtain high alloy property after the vacuum-sintering, and can reduce production costs.
The specific embodiment
A kind of powder metallurgy process of granule intensified titanium-base compound material, the powder metallurgy titanium is fashionable adopting, in powder formulated, add chromium carbide, addition is counted 5Vol%-15Vol% with C content, behind the batch mixing, through cold isostatic compaction, make and contain particle wild phase TiC particle titanium alloy through 1200 ℃～1300 ℃, 1～6h vacuum-sintering.
The preparation technology of titanium alloy of the present invention is the technology of conventional powder metallurgy pressing, sintering, and wherein carbon adds with the form of chromium carbide powder, and all known powder methods all can be used.Ready powder is through cold isostatic compaction.Through 1200 ℃～1300 ℃, 1～6h vacuum-sintering.
Example 1
Being averaged granularity is that 10.4 μ m, oxygen content are the hydrogenation dehydrogenation titanium valve of 0.34wt%, particle mean size is the carbonization chromium powder of 0.20wt% less than 44 μ m, oxygen content less than aluminum-vanadium alloy powder, the particle mean size of 44 μ m, oxygen content 0.43wt%, the chromium carbide amount accounts for total batching 5Vol% ratio in carbon and calculates, other composition is prepared burden very much by nominal alloy, mix after wait static pressure to be pressed into the cylindric standard tensile sample of powder metallurgy (GB/T7963-1987), 1300 ℃ of 1# samples that sintering obtains.
Example 2
Being averaged granularity is that 10.4 μ m, oxygen content are the hydrogenation dehydrogenation titanium valve of 0.34wt%, particle mean size is less than the aluminum-vanadium alloy powder of 44 μ m, oxygen content 0.43wt%, particle mean size is the carbonization chromium powder of 0.20wt% less than 44 μ m, oxygen content, account for total batching content 5Vol% ratio in carbon and mix chromium carbide, the proportionately adopted alloy composition batching of other compositions, through waiting static pressure to be pressed into the cylindric standard tensile sample of powder metallurgy (GB/T7963-1987), 1200 ℃ of 2# samples that sintering obtains.
Example 3
Being averaged granularity is that 10.4 μ m, oxygen content are the hydrogenation dehydrogenation titanium valve of 0.34wt%, particle mean size is less than the aluminum-vanadium alloy powder of 44 μ m, oxygen content 0.43wt%, particle mean size is the carbonization chromium powder of 0.20wt% less than 44 μ m, oxygen content, and particle mean size is the neodymium Al alloy powder of 0.51wt% less than 44 μ m, oxygen content, account for total dosage 5Vol% ratio in carbon and add chromium carbide, other composition is by nominal alloy composition batching, mix after wait static pressure to be pressed into the cylindric standard tensile sample of powder metallurgy (GB/T7963-1987), 1300 ℃ of 3# samples that sintering obtains.
Example 4
Being averaged granularity is that 10.4 μ m, oxygen content are the hydrogenation dehydrogenation titanium valve of 0.34wt%, particle mean size is less than the aluminum-vanadium alloy powder of 44 μ m, oxygen content 0.43wt%, particle mean size is the carbonization chromium powder of 0.20wt% less than 44 μ m, oxygen content, and particle mean size is the neodymium Al alloy powder of 0.51wt% less than 44 μ m, oxygen content, account for the ratio adding chromium carbide that total dosage is 5Vol% in carbon, its composition of base is pressed alloy name composition batching, through waiting static pressure to be pressed into the cylindric standard tensile sample of powder metallurgy (GB/T7963-1987), 1200 ℃ of 4# samples that sintering obtains.
Example 5
Being averaged granularity is that 10.4 μ m, oxygen content are the hydrogenation dehydrogenation titanium valve of 0.34wt%, particle mean size is less than the aluminum-vanadium alloy powder of 44 μ m, oxygen content 0.43wt%, particle mean size is the carbonization chromium powder of 0.20wt% less than 44 μ m, oxygen content, account for total dosage 10Vol% ratio in carbon and add chromium carbide, other composition is by nominal alloy composition batching, through waiting static pressure to be pressed into the cylindric standard tensile sample of powder metallurgy (GB/T7963-1987), 1200 ℃ of 5# samples that sintering obtains.
Example 6
Being averaged a degree is that 10.4 μ m, oxygen content are the hydrogenation dehydrogenation titanium valve of 0.34wt%, particle mean size is less than the aluminum-vanadium alloy powder of 44 μ m, oxygen content 0.43wt%, particle mean size is the carbonization chromium powder of 0.20wt% less than 44 μ m, oxygen content, and particle mean size is less than 44 μ m, oxygen content is the neodymium Al alloy powder of 0.51wt%, the chromium carbide addition accounts for total dosage 10Vol% ratio in carbon and calculates, other composition is by nominal composition batching, through waiting static pressure to be pressed into the cylindric standard tensile sample of powder metallurgy (GB/T7963-1987), 1200 ℃ of 6# samples that sintering obtains.
Example 7
Being averaged a degree is that 10.4 μ m, oxygen content are the hydrogenation dehydrogenation titanium valve of 0.34wt%, particle mean size is less than the aluminum-vanadium alloy powder of 44 μ m, oxygen content 0.43wt%, particle mean size is the carbonization chromium powder of 0.20wt% less than 44 μ m, oxygen content, and particle mean size is the neodymium Al alloy powder of 0.51wt% less than 44 μ m, oxygen content, account for total dosage 15Vol% ratio in carbon and add chromium carbide, other compositions are by nominal alloy composition batching, be pressed into the cylindric standard tensile sample of powder metallurgy (GB/T7963-1987) through isostatic cool pressing, 1300 ℃ of 7# samples that sintering obtains.
Example 8
10.4 μ m, oxygen content is the hydrogenation dehydrogenation titanium valve of 0.34wt%, particle mean size is less than 44 μ m, the ferromolybdenum powder of oxygen content 0.56wt%, particle mean size is less than 44 μ m, oxygen content is that the neodymium Al alloy powder of 0.51wt% and particle mean size are less than 44 μ m, oxygen content is the carbonization chromium powder of 0.20wt%, the 5Vol% ratio that accounts for total dosage in carbon adds chromium carbide, other compositions are by nominal alloy composition batching, through waiting static pressure to be pressed into the cylindric standard tensile sample of powder metallurgy (GB/T7963-1987), 1200 ℃ of 8# samples that sintering obtains.
Example 9
Being averaged a degree is that 10.4 μ m, oxygen content are the hydrogenation dehydrogenation titanium valve of 0.34wt%, particle mean size is less than the ferromolybdenum powder of 44 μ m, oxygen content 0.56wt%, particle mean size is that neodymium Al alloy powder and the particle mean size of 0.51wt% is the carbonization chromium powder of 0.20wt% less than 44 μ m, oxygen content less than 44 μ m, oxygen content, account for total dosage 10Vol% ratio by carbon and add chromium carbide, other composition is by nominal alloying component batch mixes, through waiting static pressure to be pressed into the cylindric standard tensile sample of powder metallurgy (GB/T7963-1987), 1200 ℃ of 9# samples that sintering obtains.
Example 10
Being averaged a degree is that 10.4 μ m, oxygen content are the hydrogenation dehydrogenation titanium valve of 0.34wt%, particle mean size is less than the ferromolybdenum powder of 44 μ m, oxygen content 0.56wt%, particle mean size is that the neodymium Al alloy powder of 0.51wt% and particle mean size are less than 44 μ m less than 44 μ m, oxygen content, oxygen content is the carbonization chromium powder of 0.20wt%, the 10Vol% that accounts for total batching by carbon calculates chromium carbide, other composition is by nominal alloying component batching, through waiting static pressure to be pressed into the cylindric standard tensile sample of powder metallurgy (GB/T7963-1987), 1300 ℃ of 10# samples that sintering obtains.
Table 1 sample alloy performance
| Specimen coding | Alloying component | ??б b?MPa | ??б 0.2?MPa | ????δ 5％ |
| ??1 | ????5Vol％C/Ti-6Al-4V | ??996 | ??905 | ????3.5 |
| ??2 | ????5Vol％C/Ti-6Al-4V | ??956 | ??878 | ????5.5 |
| ??3 | ????5Vol％C/Ti-6Al-4V-1.2Nd | ??1000 | ??920 | ????5.6 |
| ??4 | ????5Vol％C/Ti-6Al-4V-1.2Nd | ??968 | ??890 | ????5.6 |
| ??5 | ????10Vol％C/Ti-6Al-4V | ??990 | ??965 | ????2.4 |
| ??6 | ????10Vol％C/Ti-6Al-4V-1.2Nd | ??985 | ??960 | ????1.2 |
| ??7 | ????15Vol％C/Ti-6Al-4V-1.2Nd | ??735 | ??645 | ????4.0 |
| ??8 | ????5Vol％C/Ti-1.5Fe-2.25Mo-0.3Al-1.2Nd | ??1330 | ??1280 | ????1.6 |
| ??9 | ????10Vol％C/Ti-1.5Fe-2.25Mo-0.3Al-1.2Nd | ??1090 | ??1030 | ????7.0 |
| ??10 | ????10Vol％C/Ti-1.5Fe-2.25Mo-0.3Al-1.2Nd | ??1095 | ??1030 | ????4.0 |
Claims (1)
1. the powder metallurgy process of a granule intensified titanium-base compound material, it is characterized in that adopting the powder metallurgy titanium fashionable, in powder formulated, add chromium carbide, addition is counted 5Vol%-15Vol% with C content, behind the batch mixing, through cold isostatic compaction, make and contain particle wild phase TiC particle titanium alloy through 1200 ℃～1300 ℃, 1～6h vacuum-sintering.
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|---|---|---|---|---|
| CN100457333C (en) * | 2007-04-29 | 2009-02-04 | 西北有色金属研究院 | Method of producing porous metal thin titanium board |
| CN102851541A (en) * | 2012-09-27 | 2013-01-02 | 苏州东海玻璃模具有限公司 | TiC particle-reinforced titanium-aluminum-molybdenum-silicon alloy material synthesized in situ and preparation method thereof |
| CN102851540A (en) * | 2012-09-27 | 2013-01-02 | 苏州东海玻璃模具有限公司 | TiC particle-reinforced titanium-aluminum-vanadium-zirconium alloy material synthesized in situ and preparation method thereof |
| CN102864337A (en) * | 2012-09-27 | 2013-01-09 | 苏州东海玻璃模具有限公司 | In-situ synthesized TiC-particle-reinforced titanium-aluminum-vanadium-tin alloy material and preparation method thereof |
| CN102864336A (en) * | 2012-09-27 | 2013-01-09 | 苏州东海玻璃模具有限公司 | In situ synthesis TiC particle reinforced titanium-aluminum-vanadium alloy material and preparation method thereof |
| CN102876921A (en) * | 2012-09-27 | 2013-01-16 | 苏州东海玻璃模具有限公司 | TiC-particle-reinforced titanium-aluminum-molybdenum alloy material by in-situ synthesis and preparation method thereof |
| CN102876920A (en) * | 2012-09-27 | 2013-01-16 | 苏州东海玻璃模具有限公司 | In-situ synthesis TiC particle reinforced titanium-aluminum-molybdenum-ferrum alloy material and preparation method thereof |
| CN105798296A (en) * | 2016-03-23 | 2016-07-27 | 上海工程技术大学 | Preparing method for 3D printing boron carbide/aluminum composite special-shaped component |
| CN107385250A (en) * | 2017-07-18 | 2017-11-24 | 湘潭大学 | A kind of preparation method of TiC enhancings Ultra-fine Grained β titanium niobium based composites |
| CN108193064A (en) * | 2017-12-26 | 2018-06-22 | 天钛隆（天津）金属材料有限公司 | A kind of method of low-cost industrial production TiC granule intensified titanium-base compound materials |
| CN108213429A (en) * | 2018-01-12 | 2018-06-29 | 沈阳工业大学 | Powder and preparation method used in a kind of stainless base steel composite material of Laser Melting Deposition |
| CN108504896A (en) * | 2018-03-22 | 2018-09-07 | 中南大学 | A kind of preparation method of titanium matrix composite automotive engine valves |
| CN111218582A (en) * | 2020-02-27 | 2020-06-02 | 北京理工大学 | Titanium alloy with large-opening effect for shaped charge liner |
| CN115287498A (en) * | 2022-07-04 | 2022-11-04 | 西安工业大学 | TiC reinforced titanium-based composite material and preparation method thereof |
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2004
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100457333C (en) * | 2007-04-29 | 2009-02-04 | 西北有色金属研究院 | Method of producing porous metal thin titanium board |
| CN102851541A (en) * | 2012-09-27 | 2013-01-02 | 苏州东海玻璃模具有限公司 | TiC particle-reinforced titanium-aluminum-molybdenum-silicon alloy material synthesized in situ and preparation method thereof |
| CN102851540A (en) * | 2012-09-27 | 2013-01-02 | 苏州东海玻璃模具有限公司 | TiC particle-reinforced titanium-aluminum-vanadium-zirconium alloy material synthesized in situ and preparation method thereof |
| CN102864337A (en) * | 2012-09-27 | 2013-01-09 | 苏州东海玻璃模具有限公司 | In-situ synthesized TiC-particle-reinforced titanium-aluminum-vanadium-tin alloy material and preparation method thereof |
| CN102864336A (en) * | 2012-09-27 | 2013-01-09 | 苏州东海玻璃模具有限公司 | In situ synthesis TiC particle reinforced titanium-aluminum-vanadium alloy material and preparation method thereof |
| CN102876921A (en) * | 2012-09-27 | 2013-01-16 | 苏州东海玻璃模具有限公司 | TiC-particle-reinforced titanium-aluminum-molybdenum alloy material by in-situ synthesis and preparation method thereof |
| CN102876920A (en) * | 2012-09-27 | 2013-01-16 | 苏州东海玻璃模具有限公司 | In-situ synthesis TiC particle reinforced titanium-aluminum-molybdenum-ferrum alloy material and preparation method thereof |
| CN102864337B (en) * | 2012-09-27 | 2014-05-21 | 南京航空航天大学 | In-situ synthesized TiC-particle-reinforced titanium-aluminum-vanadium-tin alloy material and preparation method thereof |
| CN105798296A (en) * | 2016-03-23 | 2016-07-27 | 上海工程技术大学 | Preparing method for 3D printing boron carbide/aluminum composite special-shaped component |
| CN107385250A (en) * | 2017-07-18 | 2017-11-24 | 湘潭大学 | A kind of preparation method of TiC enhancings Ultra-fine Grained β titanium niobium based composites |
| CN108193064A (en) * | 2017-12-26 | 2018-06-22 | 天钛隆（天津）金属材料有限公司 | A kind of method of low-cost industrial production TiC granule intensified titanium-base compound materials |
| CN108213429A (en) * | 2018-01-12 | 2018-06-29 | 沈阳工业大学 | Powder and preparation method used in a kind of stainless base steel composite material of Laser Melting Deposition |
| CN108504896A (en) * | 2018-03-22 | 2018-09-07 | 中南大学 | A kind of preparation method of titanium matrix composite automotive engine valves |
| CN108504896B (en) * | 2018-03-22 | 2020-04-24 | 中南大学 | Preparation method of automobile engine valve made of titanium-based composite material |
| CN111218582A (en) * | 2020-02-27 | 2020-06-02 | 北京理工大学 | Titanium alloy with large-opening effect for shaped charge liner |
| CN111218582B (en) * | 2020-02-27 | 2021-06-25 | 北京理工大学 | Titanium alloy with large-opening effect for shaped charge liner |
| CN115287498A (en) * | 2022-07-04 | 2022-11-04 | 西安工业大学 | TiC reinforced titanium-based composite material and preparation method thereof |
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