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烧结态
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  sintered state
     Compared wit h the one in the sintered state,the O-ph ase of the alloy in heat treatment state is finer,the thermal fatigue fracture resistance is higher and can be increase d near three times under the 1100℃ solut ion and ageing treatment after sintering .
     与烧结态相比 ,烧结后经 110 0℃固溶和 810℃时效处理后 ,合金中沿晶分布O相组织较为细小 ,热疲劳断裂抗力较高 ,可以使试样的热疲劳寿命提高近 3倍。
短句来源
     The experimental results and the theoretical analysis show that,there are the definite relations of the specific coercive force H SC with the γ-phase mean free path λ γ and the mean Vickers hardness HV of sintered state of two-phase WC-Co cemented carbides:H SC =2 31-1 50/(1-192λ γ),HV=5704+2397/(1-1 23H SC ) owing to the close relation of the H SC ?
     实验结果和理论分析表明 ,基于与合金的显微结构参数和成分的密切对应关系 ,烧结态的两相 WC- Co硬质合金的比矫顽磁力 HSC同γ相平均自由程λγ 和平均硬度 HV间存在确定的对应关系 :HSC=2 .31- 1.5 0 / (1- 192λγ ) ,HV =5 70 4 +2 397/(1- 1.2 3HSC)。
短句来源
     The coercivity for the specimens under annealing state was enhanced one time compared with that of the sintered state.
     回火温度越低,矫顽力达到峰值所需的时间越长,与烧结态相比,回火后矫顽力可提高1倍。
短句来源
     The embrittling mechanism of 95W - Ni - Fe alloy has been researched by using Scanning Auger Microprobe(SAM) combined with heat treatment in vacuum. It has been found that high oxygen con- centration coalescent zones(HQCCZ) scattered in sintered state alloys. HOCCZ is an important embrittling fac- tor of the tungsten alloy.
     用扫描俄歇探针(SAM)结合真空热处理试验,研究了95W-Ni-Fe合金的脆化 机理,发现烧结态合金中散布着氧的高浓度富集区,这是钨合金脆化的重要因素。
短句来源
     Some biochemistry tests were completed such as the absorption of the saliva protein and the glucan, the antistrike quality and the de-adhesion quality of nano-HA to S. mutans by using the HA particles in the dry state and the sintered state.
     采用干燥态和烧结态的HA纳米粒子进行吸附唾液蛋白、吸附葡聚糖、变形链球菌黏附实验。
  sintering phase
     Forging process and forging microstructure of large-sized blank of steel bonded carbide GT35 was researched The optimum forging process was put forward Microstructure variation of sintering phase and forging phase of this alloy was analyzed Results show that forging microstructure was uniform structure,compactness was improved,bridging phase was eradicated
     对GT35钢结硬质合金特大型板坯和棒坯的锻造工艺以及锻后组织进行了研究,得出了提高合格率的优化工艺,并就该合金烧结态与锻造态的显微组织的变化情况进行了分析,结果表明:合金锻造后组织均匀,致密度提高,桥接相消除
短句来源
  as-sintered
     As-sintered WC-TiC-Co alloy(YT14 ) was subjected to a direct quenching,and the microstructures and micro-stresses of WC phases investigated using TEM and XRD.
     本文以TEM和XRD为主要手段,研究WC-TiC-Co硬质合金(YT14)在直接淬火后WC相的微观结构和微观应力,比较了常规烧结态与淬火态试样WC相之间的差异,探讨了直接淬火对合金力学性能的影响。
短句来源
     HIP PROCESSING OF AS-SINTERED CEMENTED CARBIDES
     烧结态硬质合金的HIP处理
短句来源
     The strength of above three as-sintered materials is 500、600 and 700N/mm~2 respectively. MC is iron-base master alloy containing Mo,Cr and C.
     上述三种材料的烧结态强度分别为500、600和700N/mm~2。
短句来源
     The as-sintered magnets were annealed in different vacuums, and the effects of vacuums on microstructures and magnetic properties of sintered NdFeB magnets were studied.
     为研究回火过程中真空度对烧结NdFeB磁体显微结构及磁性能的影响,对烧结态磁体采用不同的真空度进行回火。
短句来源
     Because heavy alloys have the high sensitivity to loading velocity, the K_(IC) of as-sintered and as heat-treated specimens is higher than K_(Id). Therefore, it is reliable to evaluate the size of a by the value of K_(Id) when the alloys are used under dynamic conditions.
     由于合金对加荷速率敏感,真空处理态和烧结态合金的断裂韧性值比动态断裂韧性值高,因此合金在动态条件下使用时,以K_(Id)值去确定a的尺寸才安全可靠。
短句来源
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  “烧结态”译为未确定词的双语例句
     Research on preparation of spheroidal sintered Cr_3C_2-25%NiCr composite powder
     球形烧结态Cr_3C_2-25%NiCr复合粉末制备研究
短句来源
     Research on preparation of spheroidal sintered Cr_3C_2-25%NiCr composite powder
     球形烧结态Cr_3C_2-25%NiCr复合粉末制备研究
     The results show that the K_(ⅠC) of Mo-La_2O_3 alloy reaches to 24.76MPa·m~(1/2), which is 2.5 times as much as that unalloyed Mo.
     研究结果表明:烧结态Mo La2O3材料的KⅠC值达到24.76MPa·m1/2,是纯钼的2.5倍多,而且高于热锻空冷态TiC ZrC Mo钼合金。
短句来源
     The fracture toughness K_(IC) and dynamic fracture toughness K_(Id) and the fracture micromorphology of sintered and vacuum heat-treated heavy alloy (95W-3.5 Ni-1.5 Fe) specimens have been studied.
     研究了烧结态和真至热处理态高比重合金(95W-3.5Ni-1.5Fe)的断裂韧性K_(Ic)和动态断裂韧性K_(Id)以及断裂试样断口的微观形貌。
短句来源
     The present study is concerned with the properties and microstructure of sintered and heat treated Fe-2Ni alloys with Cr addive of 0.5%,1% and 3%.
     研究了以Fe-2Ni为基体,向其中分别加入0.5%、1%和3%的Cr时,合金烧结态和热处理态的力学性能和微观组织变化。
短句来源
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  sintered state
Widening the range of sintered state of the high-alumina electrical ceramics
      
Heat treatment in hydrogen, however, shows no change in mechanical properties from the as-sintered state.
      
Whether or not the residual stress in a quenched Ni-Cu-Zn ceramic sample is released back to its initial as-sintered state through an annealing process depends upon the microstructure.
      
The microcracking also led to an increasing R-curve behaviour which was measured in the Mg-AT material in the as-sintered state.
      
A study was made of the mechanical properties and microstructure of titanium alloys in the sintered state.
      
更多          
  sintering phase
The results show that the density of the materials increases continuously with temperature, pores mainly appearing below 800°C, during the low-sintering phase and at the initial stages of the solid-sintering process.
      
This improves the homogeneity of the glass composition prior to the sintering phase.
      
The defect complex can be assumed to form during the sintering phase and subsequently frozen in upon cooling.
      
The slag is then transport to a cooling area where water is used to granulate the concentrate and wash the gases during the sintering phase.
      
The so-called zero sintering phase was characteristic of the sintering of nanoparticle zirconia.
      
  as-sintered
EDS analysis revealed that silicon segregated at the grain boundaries and that the segregation layer was wider than that in as-sintered specimens.
      
Electrical characterization through impedance spectroscopy revealed ionic-type conduction processes in as-sintered samples, with grain-bulk and grain-boundary activation energies (H) of about 1.00?eV and 1.05?eV, respectively.
      
The doping by Fe leads to a decrease of the critical temperature and an increase of the thermopower value for both investigated series (as-sintered and oxygen-reduced samples) while these effects are stronger in the second case.
      
As-sintered and thermal constraint samples were composed of Mn- and Ni-rich phases with a cubic spinel structure.
      
The as-sintered Mn1.1Ni1.4Co0.5O4 crystallized in the solid solution of cubic spinel Mn-Ni-Co oxides, along with a small amount of the cubic spinel Ni-rich oxide phase.
      
更多          


The fracture toughness K_(IC) and dynamic fracture toughness K_(Id) and the fracture micromorphology of sintered and vacuum heat-treated heavy alloy (95W-3.5 Ni-1.5 Fe) specimens have been studied. The results show that the K_(IC) and K_(Id) of vacuum heat-treated alloys are increased with the increase of tensile strength and elongation at ambient temperature. Because heavy alloys have the high sensitivity to loading velocity, the K_(IC) of as-sintered and as heat-treated specimens is higher than K_(Id). Therefore,...

The fracture toughness K_(IC) and dynamic fracture toughness K_(Id) and the fracture micromorphology of sintered and vacuum heat-treated heavy alloy (95W-3.5 Ni-1.5 Fe) specimens have been studied. The results show that the K_(IC) and K_(Id) of vacuum heat-treated alloys are increased with the increase of tensile strength and elongation at ambient temperature. Because heavy alloys have the high sensitivity to loading velocity, the K_(IC) of as-sintered and as heat-treated specimens is higher than K_(Id). Therefore, it is reliable to evaluate the size of a by the value of K_(Id) when the alloys are used under dynamic conditions. Meanwhile,the cohesion between the interface of tungsten particle phase and bonding phase is on the increase by vacuum dehydrogenization with the result that the cleavage facets of fracture surfaces of vacuum heat-traeted K_(IC) and K_(Id) specimens increase. The increase of loading velocity causes that the cleavage facets of fracture surface of K_(Id) specimens are more than those of K_(IC).

研究了烧结态和真至热处理态高比重合金(95W-3.5Ni-1.5Fe)的断裂韧性K_(Ic)和动态断裂韧性K_(Id)以及断裂试样断口的微观形貌。结果表明,真空处理合金的室温拉伸强度和延伸率大幅度增加,K_(IC)和K_(Id)随之提高。由于合金对加荷速率敏感,真空处理态和烧结态合金的断裂韧性值比动态断裂韧性值高,因此合金在动态条件下使用时,以K_(Id)值去确定a的尺寸才安全可靠。同时,真空脱氢,使钨颗粒相和粘结相界面结合力加强,结果真空热处理试样的K_(IC)和K_(Id)断口的解理面增加。加荷速率增加导致动态断裂韧性试样断口的解理面比K_(Ic)试样增多。

The specimens of W and Mo with bcc structure were analyzed by scanning electron

对不同实验条件下制备的钨和钼的试样作扫描电镜、透射电镜和俄歇电子能谱分析。断口形貌分析表明,在室温下烧结态和再结晶态的断口呈典型的晶间脆性断裂,低形变及再结晶试样为晶间脆断和穿晶解理的混合型断裂,高度形变的试样断口呈纤维状韧性断裂特征,是纤维束撕裂、分层,而后单个纤维出现缩颈、微孔合并所致。在10~(-9)Torr高真空度下对新鲜断口作俄歇电子能谱分析证实,间隙杂质磷、氧和碳是钨的主要晶界杂质,而钾、氧和碳则在掺杂钨的晶界明显富集,可以确认这些在晶界大量富集的杂质是削弱晶界强度,造成钨钼室温脆性的基本原因.文中还分析了晶粒结构和亚结构对室温脆性的影响。

The hydrogen content, mechanical properties and the fracture micromorphology of samples after tensile and fracture toughness tests of sintered and vacuum heat-treated heavy alloy GW-7W have been studied. After vacuum treatment at 1200℃, the hydrogen content of the alloy was decreased, the bond between tungsten particles and matrix was strengthened and its strength and ductility were significantly improved. The fracture toughness of the alloy, as the combination of strength and ductility, increased with the increase...

The hydrogen content, mechanical properties and the fracture micromorphology of samples after tensile and fracture toughness tests of sintered and vacuum heat-treated heavy alloy GW-7W have been studied. After vacuum treatment at 1200℃, the hydrogen content of the alloy was decreased, the bond between tungsten particles and matrix was strengthened and its strength and ductility were significantly improved. The fracture toughness of the alloy, as the combination of strength and ductility, increased with the increase in the strength and ductility of the alloy. After vacuum heat treatment the number of cleavage facets on the fracture surface of specimens tested were increased, resulting from the elimination of hydrogen brittleness and the strengthened bond between tungsten particles and matrix as well as the increased possibility of crack growth along a suitable direction at (001) plane

本文研究了真空处理态和烧结态的GW-7W合金微观结构、氢含量和力学性能以及拉伸、断裂韧性试样断口的微观形貌。指出经过1200℃真空处理,合金中的氢降低,钨颗粒和基体界面之间结合力加强,抗拉强度和延伸率大幅度提高。由于断裂韧性是强度和延性的综合表现,随着合金延伸率和抗拉强度的增加,韧性得到改善。另外由于消除氢脆,钨颗粒和基体之间结合力增强,裂纹沿合适位向的(001)面扩展的机率增多,所以真空处理后的GW-7W合金,拉伸和断裂韧性试样断口解理面比烧结态试样增多。

 
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