RU2172359C1 - Titanium-base alloy and product made thereof - Google Patents
Titanium-base alloy and product made thereof Download PDFInfo
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Abstract
Description
Изобретение относится к металлургии сплавов на основе титана, предназначенных для использования в качестве конструкционного высокопрочного и жаропрочного материала для создания силовых конструкций авиакосмической техники. The invention relates to the metallurgy of titanium-based alloys intended for use as structural high-strength and heat-resistant material for creating power structures of aerospace engineering.
Известен сплав на основе [1] следующего химического состава, мас.%:
Al - 4,4 - 5,9
Mo - 4,0 - 5,5
V - 4,0 - 5,5
Cr - 0,5 - 2,0
Fe - 0,5 - 1,5
C - До 0,1
O2 - До 0,2
H2 - До 0,015
Ti - Остальное
Данный сплав применяется для изготовления поковок и штамповок конструкционного назначения в изделиях авиационной техники, например: детали силового набора, шасси, механизации крыла и др.Known alloy based on [1] the following chemical composition, wt.%:
Al - 4.4 - 5.9
Mo - 4.0 - 5.5
V - 4.0 - 5.5
Cr - 0.5 - 2.0
Fe - 0.5 - 1.5
C - Up to 0.1
O 2 - Up to 0.2
H 2 - Up to 0.015
Ti - Else
This alloy is used for the manufacture of forgings and stampings for structural purposes in aircraft products, for example: parts of a power set, landing gear, wing mechanization, etc.
Наиболее близким аналогом, взятым за прототип, является сплав на основе титана [2] следующего химического состава, мас.%:
Al - 4,3 - 6,0
Mo - 4,0 - 5,6
V - 4,0 - 5,6
Cr - 0,5 - 1,5
Fe - 0,5 - 1,5
Zr - 0,03 - 0,5
C - 0,01 - 0,2
O2 - 0,02 - 0,2
H2 - 0,003 - 0,3
N2 - 0,01 - 0,05
Cu - 0,003 - 0,15
Ni - 0,003 - 0,15
Ti - Остальное
Из этого сплава изготавливают конструктивные детали силового набора (шасси, нервюры, детали механизации крыла и т.д.), а также диски и лопатки компрессора низкого давления в авиационных двигателях.The closest analogue taken as a prototype is an alloy based on titanium [2] of the following chemical composition, wt.%:
Al - 4.3 - 6.0
Mo - 4.0 - 5.6
V - 4.0 - 5.6
Cr - 0.5 - 1.5
Fe - 0.5 - 1.5
Zr - 0.03 - 0.5
C - 0.01 - 0.2
O 2 - 0.02 - 0.2
H 2 - 0.003 - 0.3
N 2 - 0.01 - 0.05
Cu - 0.003 - 0.15
Ni - 0.003 - 0.15
Ti - Else
Structural components of the power set (chassis, ribs, wing mechanization parts, etc.), as well as disks and vanes of the low-pressure compressor in aircraft engines, are made from this alloy.
Основными недостатками известных сплавов и изделий из них является невозможность получения на крупногабаритных полуфарикатах сочетания высокого уровня прочности, жаропрочности и высокой пластичности и модулем нормальной упругости. The main disadvantages of the known alloys and products from them is the inability to obtain a combination of a high level of strength, heat resistance and high ductility and a modulus of normal elasticity on large semi-finished products.
Технической задачей изобретения является повышение прочности, жаропрочности и пластичности сплава на основе титана в сочетании с высоким модулем нормальной упругости при комнатной и повышенной температурах. An object of the invention is to increase the strength, heat resistance and ductility of an alloy based on titanium in combination with a high modulus of normal elasticity at room and elevated temperatures.
Поставленная задача достигается тем, что сплав на основе титана, содержащий алюминий, ванадий, хром, железо, углерод, кислород, водород и азот, дополнительно содержит бор, кремний и неодим при следующем соотношении компонентов, мас.%:
Al - 4,5 - 6,5
Mo - 4,0 - 6,0
V - 4,0 - 6,0
Cr - 0,5 - 2,0
Fe - 0,5 - 2,0
C - 0,01 - 0,6
O2 - 0,02 - 0,2
H2 - 0,001 - 0,03
N2 - 0,01 - 0,05
B - 0,01 - 0,6
Si - 0,01 - 0,6
Nd - 0,01 - 0,7
Ti - Остальное
Предлагаемый сплав может быть применен для изготовления деталей силового набора в конструкциях самолета, а также для изготовления дисков и лопаток в авиационной двигателя.The task is achieved in that the titanium-based alloy containing aluminum, vanadium, chromium, iron, carbon, oxygen, hydrogen and nitrogen, additionally contains boron, silicon and neodymium in the following ratio of components, wt.%:
Al - 4.5 - 6.5
Mo - 4.0 - 6.0
V - 4.0 - 6.0
Cr - 0.5 - 2.0
Fe - 0.5 - 2.0
C - 0.01 - 0.6
O 2 - 0.02 - 0.2
H 2 - 0.001 - 0.03
N 2 - 0.01 - 0.05
B - 0.01 - 0.6
Si - 0.01 - 0.6
Nd - 0.01 - 0.7
Ti - Else
The proposed alloy can be used for the manufacture of power set parts in aircraft structures, as well as for the manufacture of disks and blades in an aircraft engine.
Особо следует указать на положительное совместное влияние Si, C, B и Nd на свойства сплава и изделия из него. В этом случае наблюдается наиболее благоприятное сочетание прочности, жаропрочности, пластичности и модуля нормальной упругости. При заявленном содержании компонентов в предлагаемом сплаве авторами установлено, что полученный эффект достигается не только за счет выделения известных интерметаллических фаз, но главным образом за счет выделения соединений типа TixNgy(Si, C, B, N, O)z, которые оказывают существенное влияние на повышение уровня прочности, жаропрочности (500oC), модуля нормальной упругости при комнатной и повышенной температурах и пластичности.Special mention should be made of the positive joint effect of Si, C, B, and Nd on the properties of the alloy and its products. In this case, the most favorable combination of strength, heat resistance, ductility and modulus of normal elasticity is observed. When the claimed content of the components in the proposed alloy, the authors found that the obtained effect is achieved not only by isolating known intermetallic phases, but mainly by isolating compounds of the type Ti x Ng y (Si, C, B, N, O) z , which have a significant effect on increasing the level of strength, heat resistance (500 o C), the modulus of normal elasticity at room and elevated temperatures and ductility.
Методом вакуумно-дугового плавки получены слитки данных сплавов массой 10 кг. После ковки, горячей прокатки и механической обработки получены обточенные прутки-электроды диаметром 55 - 60 мм. После центробежного распыления электродов на гранулы, компактирования гранул методом горячего изостатического прессования в газостате, обработки давлением и термической обработки в электрических печах на образцах сплавов предлагаемых составов были определены механически свойства, которые приведены в табл. 1. By the method of vacuum arc melting, ingots of these alloys weighing 10 kg were obtained. After forging, hot rolling and machining, the turned electrodes with a diameter of 55-60 mm were obtained. After centrifugal atomization of the electrodes into granules, compaction of the granules by hot isostatic pressing in a gas bath, pressure treatment and heat treatment in electric furnaces on alloy samples of the proposed compositions, the mechanical properties were determined, which are given in table. 1.
Из табл. 1 видно, что предлагаемый сплав обладает более высокими механическими свойствами по сравнению со свойствами прототипа: прочность при комнатной температуре повышается на 4,3 - 10,4%, пластичность на 4,4 - 14,4%, модуль нормальной упругости при комнатной температуре на 5 - 26,9%, модуль нормальной упругости при температуре 500oC на 19 - 40%, длительная прочность при 500oC за 100 ч - на 10 - 43%.From the table. 1 shows that the proposed alloy has higher mechanical properties compared with the properties of the prototype: strength at room temperature increases by 4.3 - 10.4%, ductility by 4.4 - 14.4%, the modulus of normal elasticity at room temperature by 5 - 26.9%, the modulus of normal elasticity at a temperature of 500 o C for 19 - 40%, long-term strength at 500 o C for 100 h - 10 - 43%.
Применение предлагаемого сплава позволит повысить эксплуатационную надежность и ресурс изделий на 10 - 15%, а также снизить их вес на 15 - 25%
Литература
1. Сплав ВТ22, ГОСТ 19807-74 "Титан и титановые сплавы, обрабатываемые давлением (марки)".The use of the proposed alloy will increase the operational reliability and resource of products by 10 - 15%, as well as reduce their weight by 15 - 25%
Literature
1. VT22 alloy, GOST 19807-74 "Titanium and titanium alloys processed by pressure (grades)."
2. Патент РФ N 2082802, кл. C 22 C 14/00, 1996 (бюл. N 18). 2. RF patent N 2082802, class. C 22 C 14/00, 1996 (bull. N 18).
Claims (1)
Al - 4,5 - 6,5
Mo - 4,0 - 6,0
V - 4,0 - 6,0
Cr - 0,5 - 2,0
Fe - 0,5 - 2,0
С - 0,01 - 0,6
O2 - 0,02 - 0,2
H2 - 0,001 - 0,03
N2 - 0,01 - 0,05
В - 0,01 - 0,6
Si - 0,01 - 0,6
Nd - 0,01 - 0,7
Ti - Остальное
2. Изделие, выполненное из сплава на основе титана, отличающееся тем, что оно выполнено из сплава следующего химического состава, мас.%:
Al - 4,5 - 6,5
Mo - 4,0 - 6,0
V - 4,0 - 6,0
Cr - 0,5 - 2,0
Fe - 0,5 - 2,0
С - 0,01 - 0,6
O2 - 0,02 - 0,2
H2 - 0,001 - 0,03
N2 - 0,01 - 0,05
В - 0,01 - 0,6
Si - 0,01 - 0,6
Nd - 0,01 - 0,7
Ti - Остальное-1. An alloy based on titanium containing aluminum, molybdenum, vanadium, chromium, iron, carbon, oxygen, hydrogen and nitrogen, characterized in that it additionally contains boron, silicon and neodymium in the following ratio, wt.%:
Al - 4.5 - 6.5
Mo - 4.0 - 6.0
V - 4.0 - 6.0
Cr - 0.5 - 2.0
Fe - 0.5 - 2.0
C - 0.01 - 0.6
O 2 - 0.02 - 0.2
H 2 - 0.001 - 0.03
N 2 - 0.01 - 0.05
B - 0.01 - 0.6
Si - 0.01 - 0.6
Nd - 0.01 - 0.7
Ti - Else
2. The product is made of an alloy based on titanium, characterized in that it is made of an alloy of the following chemical composition, wt.%:
Al - 4.5 - 6.5
Mo - 4.0 - 6.0
V - 4.0 - 6.0
Cr - 0.5 - 2.0
Fe - 0.5 - 2.0
C - 0.01 - 0.6
O 2 - 0.02 - 0.2
H 2 - 0.001 - 0.03
N 2 - 0.01 - 0.05
B - 0.01 - 0.6
Si - 0.01 - 0.6
Nd - 0.01 - 0.7
Ti - The rest is
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| RU99124918/02A RU2172359C1 (en) | 1999-11-25 | 1999-11-25 | Titanium-base alloy and product made thereof |
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|---|---|---|---|
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| US8048240B2 (en) | 2003-05-09 | 2011-11-01 | Ati Properties, Inc. | Processing of titanium-aluminum-vanadium alloys and products made thereby |
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-
1999
- 1999-11-25 RU RU99124918/02A patent/RU2172359C1/en not_active IP Right Cessation
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| US9777361B2 (en) | 2013-03-15 | 2017-10-03 | Ati Properties Llc | Thermomechanical processing of alpha-beta titanium alloys |
| US11111552B2 (en) | 2013-11-12 | 2021-09-07 | Ati Properties Llc | Methods for processing metal alloys |
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| 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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