助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   严重偏析 的翻译结果: 查询用时:0.022秒
图标索引 在分类学科中查询
所有学科
金属学及金属工艺
更多类别查询

图标索引 历史查询
 

严重偏析
相关语句
  serious segregation
     The results showed that there exists serious segregation of Cu in the large ZL205A casting and Cu contents of part area exceed the upper limit.
     结果表明:ZL205A大型铸件中,Cu元素严重偏析,局部Cu含量超过上限;
短句来源
     Because metallurgical technique is not proper enough, serious segregation and various forging defects are caused by surplus-phase in GH36 and GH132 alloys.
     GH16、GH132合金中的过剩相因冶炼工艺欠当会引起严重偏析和多种锻造缺陷。
短句来源
     The results indicate that the diffusion of Cu is not complete at low brazing temperature and short heat preservation time. It comes into being the θ phase(Al_2Cu) which is the brittlest in all Al-Cu phase and forms serious segregation on the substrate′s grain boundary.
     结果表明,钎焊温度过低、保温时间过短时,Cu元素在基体内部尚未能充分扩散,在基体晶界上严重偏析,生成Al-Cu相中最脆的θ相(Al2Cu)。
短句来源
     The results show that the formation of segregation band is mainly caused by serious segregation of C and Mn the segregation band is not sorbitic structure and has high strength and low plasticity.
     结果表明:碳、锰严重偏析是导致高强度预应力盘条中偏析带形成的主要原因。
短句来源
     Uuduly low fluidizing velocity will cause unstable operation, serious segregation of fuel in the fluidized bed, and low combustion efficiency.
     实验表明,沸腾风速的影响是的显著,过低的风速不仅会影响稳定运行,而且会造成沸腾床内物料的严重偏析进而降低燃烧效率。
短句来源
更多       
  “严重偏析”译为未确定词的双语例句
     Co ncl usion Bio Herador N gold ceramometal alloy showed serious Pt- and Ru -enriched microsegregation in as-cast structure.
     结论 本实验分析表明BioHeradorN合金铸态组织存在富Pt、Ru相的严重偏析
短句来源
     And by Energy Disper-sive X-ray (EDX) analysing, it's enriched Pt and Ru: the content of platinum (64.63%)were five times than the labelled content(11.5%);
     经能谱分析第二相为富Pt、Ru相颗粒,其Pt含量(64.63%)第四军医大学硕土学位论文比名义成分(11.5%)高达近5倍,RU则近20倍(8名8%比0.4%),证明该合金铸态组织存在富Pt、Ru相的严重偏析,并发现其主要表现为晶界偏析;
短句来源
     seriously segregated and forms a large amount of phases of higher melting point.
     因合金中难熔重元素含量较高(33wt-%Mo,17wt-%W),其铸造组织粗大,含有大量高熔点相,并存在严重偏析
短句来源
     During solidification,Cu segregates to the interdendrite and finally formsα-Al+T_2 eutectie. As a result,the solidification temperature range is greatly extended. Morethan 95% molten solidifies in the temperature range of 635—590℃ and the solidification pro-cess terminates at about 525℃.
     由于溶质元素 Cu 的严重偏析,使得合金终凝固温度显著降低,凝固温度区间扩大,终凝温度在525℃左右,但熔体的90%以上在635—590℃之间凝固,在最后凝固区溶质大量富集,从而形成了 T_2相等低熔点共晶化合物。
短句来源
     The results showed that there wasthe severe grain boundary segregation of sodium in the Al-Li alloy with higher sodium content, which re-sulted in the decrease of the strength and ductility of Al-Li alloy.
     实验结果表明,在Na含量较高时,Na在晶界严重偏析,降低合金的强度和塑性。
短句来源
更多       
  相似匹配句对
     The serious positive segregation centralizes around the centreline of the billet.
     严重的正偏析集中在中心线周围。
短句来源
     The loss of water and soil is serious;
     水土流失严重;
短句来源
     (3) Soil erosion by water is serious.
     水土流失严重;
短句来源
     In the fine-columnar grain structure, no serious segregation in composition has been observed.
     而在细的柱状晶组织中,无严重的成分偏析
短句来源
     Low Segregation Superalloys
     低偏析高温合金
短句来源
查询“严重偏析”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  macrosegregation
It is shown that the crystal vibration cannot compensate a thermal capillary flow (caused by detachment of the melt from the ampoule wall) and reduce the macrosegregation of impurities.
      
The effect of an oscillating external force on the melt that initiates macrosegregation is analyzed.
      
It is found that the RMF can completely eliminate the gravity induced macrosegregation, and result in dendrite fragmentation and promote solute diffusion velocity.
      
All of the solidified samples exhibit serious macrosegregation, indicating that the homogenous alloy melt is separated into two liquid phases prior to rapid solidification.
      
Modeling macrosegregation in an ingot, taking account of alloy shrinkage
      
更多          
  serious segregation
The fcc alloys which are paramagnetic at 290 K show asymmetric doublet spectra, indicating no serious segregation.
      
In low- temperature tempered states, there is the serious segregation of carbon in the form of carbide particles at prior austenitic grain boundaries, causing low-stress intergranular fracture.
      


The lamellar fracture with streaky matt facets found in cracked surface of medium-carbon CrNiMov steel forgings has been observed by TEM. Various extracted second phases in carbon replicas from the fracture surface were identified by selected-area electron diffraction technique and EPMA. The results indicate that the fine globular α-MnS, the type-Ⅰ MnS inclusion and the thin platelet or dentritic VC were appeared, as well as the flaky complex oxides of Si and Mn, mainly as SiO_2,distributed along the direction...

The lamellar fracture with streaky matt facets found in cracked surface of medium-carbon CrNiMov steel forgings has been observed by TEM. Various extracted second phases in carbon replicas from the fracture surface were identified by selected-area electron diffraction technique and EPMA. The results indicate that the fine globular α-MnS, the type-Ⅰ MnS inclusion and the thin platelet or dentritic VC were appeared, as well as the flaky complex oxides of Si and Mn, mainly as SiO_2,distributed along the direction of hot forging. The lamellar fracture characteristics relating to intercrystalline cracking is due to various second phase precipitates at its primary austenite grain boundaries. It seems that the lamellar fracture is similar to the "rocky-rock candy" one in cast steel substantially, thus,it may decrease remarkaly the transverse tensile ductility and lower moderately the impact toughness of the steel.

采用透射电子显微镜详细观察了中碳铬镍钼钒钢大型锻件层状断口上呈条带状无光泽棱面的微观特征,对断面上萃取的各种第二相进行选区电子衍射和电子探针分析。发现这种棱面上有微细圆球α-MnS、薄膜或树枝状VC沉淀,还分布着沿热加工方向排列,以SiO_2为主体的片状Si、Mn复合氧化物,以及第Ⅰ类MnS夹杂。层状断口认为是由于钢的初始奥氏体晶界上的元素严重偏析,导致各种第二相晶间沉淀,从而引起晶界脆化。提出这种断口本质上类似“石状-冰糖”断口。层状断口能够显著降低钢的横向拉伸塑性,并稍许减低其冲击韧性。

Study was made of the influence of the laserglaze on the micro-structure and the wear resistance of a cast Ni-base superalloy containing abundance of refractory metals, i. e. Mo 33 wt-% and W 17 wt-%. Owing to the high contents of Mo and W, this new alloy makes its cast structure coarse and. seriously segregated and forms a large amount of phases of higher melting point. Experimental results show that the microstructure of such superalloy may be extraordinarily improved after surface treatment by laserglaze...

Study was made of the influence of the laserglaze on the micro-structure and the wear resistance of a cast Ni-base superalloy containing abundance of refractory metals, i. e. Mo 33 wt-% and W 17 wt-%. Owing to the high contents of Mo and W, this new alloy makes its cast structure coarse and. seriously segregated and forms a large amount of phases of higher melting point. Experimental results show that the microstructure of such superalloy may be extraordinarily improved after surface treatment by laserglaze of very high energy density. All high melting point phases vanish. The solid solubility increases greatly. The crystalline structure becomes finer. The fine dendritic, cellular dendritic, cellular and plane front solidification structures are found in various parts of melted region. In the laser melted zone, the alloying elements distribute uniformly. Thus, the segregation in the alloy may be substantially eliminated by the treatment of this new technique. The change of its microstructure favours the further improvement of the properties, e. g. , the hardness of the laser melted zone is evidently increased and the wear resistance both in dry environment and in acid medium is also enhanced.

本文研究激光快速熔凝对一种新型Ni基铸造超合金显微组织和磨蚀磨损性能的影响。高Mo,W含量Ni基铸造合金是一种具有低膨胀系数和耐磨耐蚀等特种工程性能的新型材料。因合金中难熔重元素含量较高(33wt-%Mo,17wt-%W),其铸造组织粗大,含有大量高熔点相,并存在严重偏析。用高能量密度激光快速熔凝表面处理之后,合金组织发生显著改变。全部高熔点相熔化,明显提高固溶度;结晶组织细化,分别为精细枝晶、胞状枝晶、胞状晶和平面凝固组织;熔区内合金元素均匀分布,基本消除偏析。合金组织变化使其性能进一步改善,熔区硬度明显增加,提高了抗磨擦磨损和在酸性介质中的耐磨蚀性能。

Based on experimental results, the effects of operation conditions to the operation process of the fluidized bed combustors burning washing coal sludge are discussed, It is shown that fluidizing gas velocity has obvious effects. Uuduly low fluidizing velocity will cause unstable operation, serious segregation of fuel in the fluidized bed, and low combustion efficiency. Combustion efficiency also decrease with bed temperature because of the decrease in strength of the fuel agglomerates. The effects of other conditions...

Based on experimental results, the effects of operation conditions to the operation process of the fluidized bed combustors burning washing coal sludge are discussed, It is shown that fluidizing gas velocity has obvious effects. Uuduly low fluidizing velocity will cause unstable operation, serious segregation of fuel in the fluidized bed, and low combustion efficiency. Combustion efficiency also decrease with bed temperature because of the decrease in strength of the fuel agglomerates. The effects of other conditions such as feeding diameter, coefficient of excess air, aperture ratio of the distributor, water content of the fired sludge, etc on the operation process of the sludge-burnt flu-idized bed combustor are also discussed.

本文结合实验结果,讨论了操作条件变化对煤泥沸腾炉运行过程的影响。实验表明,沸腾风速的影响是的显著,过低的风速不仅会影响稳定运行,而且会造成沸腾床内物料的严重偏析进而降低燃烧效率。由于煤泥凝聚团的强度随沸腾床温度的降低,沸沸炉的燃烧效率也随床温降低而有较明显的降低。此外,本文还讨论了给料直径,过剩空气系数,布风板开孔率入炉煤泥水份对煤泥沸腾炉运行过程的影响。

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关严重偏析的内容
在知识搜索中查有关严重偏析的内容
在数字搜索中查有关严重偏析的内容
在概念知识元中查有关严重偏析的内容
在学术趋势中查有关严重偏析的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社