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high specific strength     
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  高比强度
     Research on The High Specific Strength and Specific Stiffness Structure Design Based on The Structural Bionic Theory
     基于结构仿生理论的高比强度、比刚度结构设计研究
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     Ti_2AlNb-based alloy is a new type of high specific strength titanium aluminum intermetallic compounds designed for new aeroengine development. It's nominal composition is Ti-22Al-25Nb.
     Ti_2AlNb基合金是针对我国新型航空航天发动机的发展需求而研制的一种新型的高比强度钛铝金属间化合物,其名义成份为Ti-22Al-25Nb。
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     Compressive and Energy Absorption Behavior of Porous Al Alloy with High Specific Strength
     高比强度多孔铝合金的压缩性能和能量吸收特性
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     The fiber reinforced resin matrix composites are a kind of structural material with high specific strength and high specific rigidity.
     纤维增强树脂基复合材料是一类高比强度、高比刚度的结构材料。
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     Ti6Al4V alloy attracts much attention among the implant biomaterials due to its high specific strength, relatively low density and modulus, better mechanical and machining properties, favorable corrosion resistance and good biocompatibility.
     在生物植入材料领域,Ti6Al4V合金以其高比强度、低弹性模量和密度、良好的加工性能、优越的耐蚀性能、以及良好的生物相容性等特点而得到广泛应用。
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  高比强
     Rapidly solidified high temperature aluminum alloy AA8009 (Al-8.9Fe-1.3V-1.7Si) is a kind of lightweight structure materials with high specific strength, high specific stiffness and excellent heat-resistance. It is able to be applied to the aerospace and aircraft industries instead of some of titanium alloys or steels which are usually used at the temperature range of 150~350℃.
     快速凝固AA8009耐热铝合金(Al-8.9Fe-1.3V-1.7Si)是一种高比强、高比刚、热稳定性好的轻质结构材料,可在150~350℃(甚至更高范围内)替代钛合金或钢材使用。
短句来源
     Study on compressive deformation of porous aluminum alloy with high specific strength
     高比强多孔铝合金的压缩变形性能
短句来源
     Carbon/carbon (C/C) composites coated with anti-oxidation coating -exhibit excellent structural properties at elevated temperature (such as favorable strength retention ratio and high specific strength, etc.)
     抗氧化涂层碳/碳(C/C)复合材料以其耐氧化性好、高比强、高温强度保持率高等一系列优点而在航空发动机热结构部件上极具应用潜力。
短句来源
     Rapidly solidified high temperature aluminum alloy is a kind of lightweight structural materials with high specific strength, high specific stiffness and good heat-resistance.
     快速凝固耐热铝合金是一种高比强、高比刚、耐高温轻质结构材料,可在150-350℃(甚至更高)的温度范围内替代钛合金或钢材使用。
短句来源
     The Al alloy foam with high specific strength studied in the past few years has polygonal pores and high porosity.
     以往研究的泡沫纯铝及高比强铝合金,其固态孔结构都是多边形孔高孔隙率。
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  高的比强度
     the porous aluminum alloy has high specific strength and energy absorption capability. Its σ 2/3 c/ ρ (beam) and σ 1/2 c/ ρ (board) reach to 2.5 ~ 7.0 and 1.6 ~4 respectively.
     多孔铝合金具有高的比强度 ,其σ2 /3 c / ρ(梁 )及σ1/2c / ρ(板 )分别为2 .5~ 7.0和 1.6~ 4 .1,与钢和Al合金相当 ,而密度只有Al合金的 4 0 % ,可用作轻质结构材料 ;
短句来源
     Carbon reinforced carbon (C/C) composite have much good properties, such as high specific modulus, high specific strength, abrasion resistance and so on, which is widely used in aeronautics & astronautics.
     碳/碳(C/C)复合材料具有高的比模量、高的比强度、耐磨损、耐高温等优良特性,广泛应用于航空航天领域。
短句来源
     Ti2AlNb orthorhombic alloy is an attractive high temperature structural material for aero-industries due to its high specific strength and fracture toughness as well as excellent creep resistance.
     Ti2AlNb 合金(O 相)具有高的比强度、断裂韧性以及优良的抗蠕变性能,因而在航空制造中成为一种颇具吸引力的高温结构材料。
短句来源
     The TiAl based alloy has specialties of low density、high specific strength and high elastic modulus.
     TiAl基合金密度低,具有高的比强度和比弹性模量,使用温度与高温Ni基合金相近,但其密度仅为高温Ni基合金的一半,因此被认为是新一代高温结构候选材料之一,可广泛应用于汽车或航空发动机的高温部件。
短句来源
     TiAl-based alloys have high specific strength, specific stiffness, excellent oxidation and creep resistance, which have been paid broad attentions to for years.
     TiAl基合金因其具有高的比强度、比刚度,以及较好的高温抗蠕变、抗氧化性能等优点,引起了国内外学者的广泛关注。
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  较高的比强度
     γ-TiAl alloy is considered as one of the promising light-weight structural materials at elevated-temperature due to its excellent combination of low density, high specific strength and stiffness, and superior high elevated-temperature properties.
     γ-TiAl合金具有低密度、较高的比强度和比刚度,以及优良的高温性能,被认为是一种极具应用潜力的新型高温结构材料。
短句来源
     TiAl-based alloys with high specific strength are the most potential high temperature structural materials for aerospace and auto-engine application. These materials are the high intensity ratio, the low density, the high elevated mechanics performance and resistance high-temperature oxidation performance.
     TiAl基合金作为一种新型的高温结构材料应用于航天、航空和汽车发动机的高温部件,具有较高的比强度、低密度、高温力学性能高和抗高温氧化能力强等优点。
短句来源
     Magnesium alloy has some special eharacters such as light mass, stable price, fuel comsumption reducing andlower production cost, which are suitahle to the automotive circle, also it has high specific strength and rigidity, good castingand vibration insulating properties so that it is put into application in many automobile parts nowadays.
     镁合金具有质量轻、提高燃油利用率、降低生产成本、价格稳定等适合于汽车行业的特点,同时也具有较高的比强度、比刚度及良好的铸造性能和减振性能,因此镁合金被应用在汽车的许多零件上。
短句来源
     Magnesium alloy has some special characteristics such as light mass ,high specific strength and rigidity ,good casting and vibration insulating properties,and it also has good head conductivity and electromagnetic shielding properties, which makes it a kind of metal material that is most rapidly used in modern industry.
     镁合金质量轻且具有较高的比强度、比刚度以及良好的铸造性能和减振性能 ,同时还具有良好的导热性和电磁屏蔽性能 ,使镁合金成为当今工业产品应用增长速度最快的金属材料 .
短句来源
     Magnesium is a macroelement that can be absorbed by human bodies, and with high specific strength and stiffness,it has a broad application prospect in the field of medical implant materials.
     镁是可被人体吸收的常量元素,且具有较高的比强度和比刚度,在医用植入材料领域具有广阔的应用前景。
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  high specific strength
Among their benefits, metastable beta-titanium alloys offer high specific strength, low elastic moduli, high corrosion resistance, and manufacturability.
      
Titanium alloys modified with small additions of boron are emerging as potential candidates for replacing structural components requiring high specific strength and stiffness.
      
Titanium matrix composites (TMCs) incorporating unidirectional fiber reinforcement are considered as enabling materials technology for advanced engines which require high specific strength and elevated temperature capability.
      
Ultralight metallic structural materials based on foamed nichrome and cellular sandwiches made from stainless steel are prepared with a porosity of 90-95% and high specific strength indices are obtained.
      
These alloys are characterized by a high specific strength and rigidity which increases substantially the load ratio and fuel efficiency of the parts.
      
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The pressure infiltration process is a convenient and inexpensive method for manufacturing cast metal matrix composities. Inherent in the process is the ability to independently control the most important processing parameters such as fiber preform temperature TD, melt temperature T'm infiltration pressure P, and cooling rate, (or solidification time).A deterrent to the use of these materials for structural applications where high specific strength and modulus properties are important are the interfacial...

The pressure infiltration process is a convenient and inexpensive method for manufacturing cast metal matrix composities. Inherent in the process is the ability to independently control the most important processing parameters such as fiber preform temperature TD, melt temperature T'm infiltration pressure P, and cooling rate, (or solidification time).A deterrent to the use of these materials for structural applications where high specific strength and modulus properties are important are the interfacial reactions between fiber and the matrix which degrade the fiber strength and hence, the com-posity strength. This investigation is primarily concrened with controlling interfacial reactions between P-55 graphite fibers and 1100A1 and Al-0.34%Ti alloys. The effects of processing parameters on these three systems were evaluated. This evaluation included optical and TKM metallography, SEM fraotography as well as mechanical property testing of composite castings and fibers leached from composite castings. The results of these evaluations show that sound composites with high mechanical properties can be produced by at least two routs: (1)control of processing parameters so as to minimize high temperature exposure of the fiber surfaces to molten metal, (2) alloying the matrix with Sior Ti to reduce the activity of carbon in the molten matrix.

压力浸渍法是制造金属基复合材料方便而廉价的方法。在这种工艺过程中,能独立控制纤维预制件温度T_p、熔融金属温度T_m、浸渍压力P和冷却速度等重要工艺参数。在金属基复合材料中,纤维与基体间的界面反应使纤维强度下降,复合材料性能恶化,从而限制了复合材料的广泛使用。本文主要研究如何控制无涂层的P-55纤维与1100Al和Al-0.34%Ti合金之间的界面反应,讨论压力浸渍法工艺参数对P55/Al和P55/Al-Ti复合材料组织、性能的影响。结果表明:通过控制工艺参数来缩短纤维与熔融金属铝之间的接触时间和在基体中加入钛元素以降低碳在熔融铝中的活性可以制造出高性能的复合材料。

Metal based composites possesses the advantages of high specific strength,high specific stiffness,heat resistance and wear resistance,excellent thermal conductivity,conductibility and stability of size. This material can be not only used for manufacturing aerospace parts,but also be used widely for manufacturing civil products. This paper regards Japan as an example to introduce the development condition of manufacturing technology of metal composites.

金属基复合材料具有比强度高、比刚度高、耐热、耐磨损、导热、导电、尺寸稳定等优点,是一种很有发展前途的新材料,不仅可以用于制造航空航天零部件,而且可以广泛地用于制造各种民用产品。本文仅以日本为例,介绍金属基复合材料制造技术的发展概况。

Application of advaned composite materials for the spacecraft and launch vehicles is described briefly.The advanced composite materials have high specific strength and stiffness and tailorable advantage.These characteristics will decrease sole weight of spacecrafts and launch vehicles and increase payload capability.The current state of advanced composite research in China and suggestions for the future development are also presented.

本文简述了国外先进复合材料在航天器及其运载工具上的应用状况,先进复合材料的高比强度、比刚度和可设计性等特点可明显地减轻航天器及其运载工具自身质量,提高有效载荷能力。此外,本文还简略地介绍了我国航天器应用复合材料的现状,并对今后发展提出建议。

 
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