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high specific gravity
相关语句
  高比重
    The technology and its arrangement have been discussed from the composition, alloying, sintering atmospher, post-annealing, fracture mophology, and anti-oxidation and corrosion resistance at high temperatures for the high specific gravity alloys such as W-Ni-Fe.
    对以W-Ni-Fe为代表的高比重合金,从选择合适合金成份,多元合金化,烧结气氛,烧结后处理,高温抗氧化性和抗腐蚀性,断口形貌等方面讨论了其工艺技术的合理配置问题。
短句来源
    Research and Development of High Specific Gravity Alloys
    高比重合金的研究现状
短句来源
    The detail have been analysed for the high specific gravity from the above factors.
    并从这些方面详细讨论了影响高比重合金性能的具体因素。
短句来源
    The development status quo of high specific gravity alloys has been also reviewed.
    另外还介绍了近年来高比重合金的发展状况。
短句来源
    It is hopeful to enhance the capability and urge the application of the high specific gravity tungsten based alloy of block materials by using nano preparation technology.
    采用纳米技术制备高比重钨合金块体材料有望进一步提高其性能,促使其应用。
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  high specific gravity
By virtue of its high specific gravity, barytes is extensively used as drilling mud in oil well industry.
      
On the other hand, injected labelled protein failed to comigrate with the lysosomal markers in starved as well as Triton treated rats and conspicuously remained in a region of high specific gravity in the gradient.
      
Within a variety, proportionately larger numbers of large starch granules are associated with tubers of high specific gravity, and more smaller granules, with low specific gravity.
      
Reeves Kingpin is suitable for processing into french fries due to its large tubers, high specific gravity, and acceptable fry color.
      
All but one of these genotypes also possessed a high specific gravity of tubers.
      
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Tritium autoradiography was employed for the identification of: 1. the hydrogen distribution in irons with different purities; 2. the diffusion behavior uof hydrogen in metal under local load for different stress stand; 3. the distribution of tritium in the W alloys, 95%W-3.5%Ni-1.5%Fe, a kind of two-phase alloys consisted from W particles and binder of solution 54.2%Ni-27.1%Fe-20.5%W with high specific gravity and 4. the hydrogen distribution of different zones for the weld joint. It was found that the...

Tritium autoradiography was employed for the identification of: 1. the hydrogen distribution in irons with different purities; 2. the diffusion behavior uof hydrogen in metal under local load for different stress stand; 3. the distribution of tritium in the W alloys, 95%W-3.5%Ni-1.5%Fe, a kind of two-phase alloys consisted from W particles and binder of solution 54.2%Ni-27.1%Fe-20.5%W with high specific gravity and 4. the hydrogen distribution of different zones for the weld joint. It was found that the hydrogen distribution of iron is dependent on the purity of iron and the hydrogen solubility in the iron, however, grain boundary of high purity iron cannot be provided preferred sites for hydrogen accumulation site, but grain orientation difference is sensitive for tritium tracer. Tritium redistribution of hydrogen in different purity iron under different plastic deformation by the stress induced hydrogen segregation on the iron. Tritium distribution on the W-Ni-Fe sintcring alloys, even without etching, it is primarily accumulated on the interface of binding phase, which is dependent on relative solubility in two-phase alloys. The distribution of tritium on the different zone of the weld joint shows that hydrogen in the austenite weld, fusion zone. Overheat affected zone of matrix and matrix is different, which is closely connection of the carbon segregation of weld process and structure defect of matrix.

氚自射线照相法是观察低含量氢微观分布的有效手段之一。本工作利用氚示踪法研究:1.在不同纯度Fe中氢的分布规律;2.在局部应力状态下氢的扩散行为;3.在液相烧结钨合金中氢的分布;4.氢在堆焊接头不同区域的分布特征。实验结果表明,氢的分布特性与相结构、应力状态和碳陷阱有关。

The technology and its arrangement have been discussed from the composition, alloying, sintering atmospher, post-annealing, fracture mophology, and anti-oxidation and corrosion resistance at high temperatures for the high specific gravity alloys such as W-Ni-Fe. The detail have been analysed for the high specific gravity from the above factors. The development status quo of high specific gravity alloys has been also reviewed.

对以W-Ni-Fe为代表的高比重合金,从选择合适合金成份,多元合金化,烧结气氛,烧结后处理,高温抗氧化性和抗腐蚀性,断口形貌等方面讨论了其工艺技术的合理配置问题。并从这些方面详细讨论了影响高比重合金性能的具体因素。另外还介绍了近年来高比重合金的发展状况。

As tungsten based alloys with the specific gravity have a lot of super physical and mechanical properties, they have a wide application in spaceflight, aviation and national defense military project. It is hopeful to enhance the capability and urge the application of the high specific gravity tungsten based alloy of block materials by using nano preparation technology. The existing problems in powder preparation, moulding and sintering which prevented the development were discussed. And more, aiming at...

As tungsten based alloys with the specific gravity have a lot of super physical and mechanical properties, they have a wide application in spaceflight, aviation and national defense military project. It is hopeful to enhance the capability and urge the application of the high specific gravity tungsten based alloy of block materials by using nano preparation technology. The existing problems in powder preparation, moulding and sintering which prevented the development were discussed. And more, aiming at the key problems of gain growth in sintering of nano-structured powder and a lot of microhole in blok materials, several kinds of feasible methods were introduced.

高比重钨合金由于具有一系列优异的物理力学性能,因此在航空航天、国防军工和民用中有着广泛的应用前景。采用纳米技术制备高比重钨合金块体材料有望进一步提高其性能,促使其应用。本文分析了纳米钨合金在粉末制备和成型烧结中存在的问题,并针对纳米钨合金粉末成型和烧结过程中晶粒长大问题以及块体材料中存在大量微孔问题,介绍了数种可行性控制方法。

 
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