顯微裂紋 的英文怎麼說

中文拼音 [xiǎnwéilièwén]
顯微裂紋 英文
micro flaw
  • 顯 : Ⅰ形容詞1 （明顯） apparent; obvious; noticeable; evident 2 （有名聲有權勢的） illustrious and inf...
  • 裂 : 裂動詞[方言] （東西的兩部分向兩旁分開） open
  • 紋 : 名詞（花紋; 紋縷兒） lines; veins; grain
  • 顯微 : microadiography
  1. Abstract : by examining the technical processes of the cold - press dies on silicon - steel plates by metalloscope, the causes of cracks in the cold - press dies are analyzed, from which technical measures that are used to avoid cracking are derived

    文摘:通過對硅鋼片冷沖模各加工工藝的檢查和金相顯微觀察，分析了冷沖模產生裂紋的原因，並提出了防止裂紋產生的工藝措施。
  2. Ceviar living cells, which undergo devision 200 times faster than normal cells, contain a great variety of activated factors that stimulate fission of both organism and cells, and regeneration of cells, improving micro circulation and supply of nutrients, reducing melanin, and thus growing vitality and skin springiness, resulting from less wrinkles and shrinking pores

    魚子活細胞有旺盛的生命力，它的細胞分裂頻率比成熟細胞強200倍，內含多種活性因子，可啟動人體組織細胞的分裂和活化，刺激老化細胞更新再生，改善微循環，淡化黑色素，其高分子蛋白質有效的補充人體細胞和皮膚細胞的養份，增強機體活力和皮膚的彈性，修護鞏固基底層細胞組織達到去除皺紋、收緊毛孔、提升皮膚的顯著美容效果。
  3. When heating temperature reached 300, crackings appeared on the surface of ceramic tiles but the microstructure of glaze exhibited no apparent change when heating temperature reached 900, the glaze melted, the crystal structure of the tiles broke down, the integrity of ceramic tile was destroyed and the intensity was almost lost

    當溫度達到300 ，冷卻試驗時，釉面可產生裂紋，但顯微結構基本無變化；當溫度達到900 ，冷卻試驗時，釉面出現熔化現象，坯體晶體結構酥裂、破碎，完整性遭到破壞，強度基本喪失。
  4. Against the background of the microstructural evolution of three dimensional braiding c / sic composites, used such analytical methods as lm, sem and tem, it is studied that the matrix cracks propagate in the composites with different interphase thickness under three - point - bend testing, as well as under the creep testing. the main conclusions are as follows : 1

    本文以三維編織c sic復合材料微結構演化為背景，採用光學顯微鏡（ lm ） 、掃描電鏡（ sem ）和透射電鏡（ tem ）等分析手段，研究了不同界面相厚度的復合材料在三點彎曲測試中基體裂紋的擴展規律，以及基體裂紋擴展對蠕變過程的影響。
  5. The micromorpholgy and grain boundary microstructure of the material were studied with sem and tem and the grain boundary phase composition were analyzed with eds and x - ray the mechanical properties, micromorpholgy microstructure of grain boundary and phase composition of al2o3 composite ceramics were systematically studied, the effect of additives, the relationship between microstructure and mechanical strength, the sintering mechanism of the material and influence factors of the structure and properties of al2o3 composite ceramics were discussed respectively

    系統研究了氧化鋁陶瓷的力學性能、微觀形貌、晶界顯微結構，並討論了各添加組分的作用、材料顯微結構與力學性能的關系以及材料的燒結機理和影響材料結構與性能的影響因素。本論文探討了氧化鋁基復相陶瓷的強韌化機理，實驗表明al _ 2o _ 3 - ticn體系主要是微裂紋韌化。
  6. The studies expressed that the tensile - strength declined with the growth of dose rate after the radiation treatment, and at the same time, the gel content had extreme value with the change of the dose rate. the surface of uhmwpe fibers showed some irregular micro - pits and dents after radiation treatment, narnely rough degree increasing. their number and deepness increased with increase of dose. and this phenomenon is the most obvious when the dose rate was 8. 5kgy / s and the dose was 400kgy. at the same time some containing oxygen groups, including hydroxyl group, carbonyl group and carboxyl group, were introduced into the fiber surface which was exposed to the air

    研究表明， uhmwpe纖維經電子束輻照處理后，纖維的拉伸斷裂強度隨劑量率的增加呈下降趨勢，凝膠含量隨著劑量率的變化存在極值。纖維表面出現了不規則的微裂紋和凹痕，隨著劑量的增大，電子束對纖維表面的刻蝕程度增加，在本研究中以劑量為400kgy劑量率為8 . 5kgy s時刻蝕效應最為明顯。同時，在空氣中進行輻照時，纖維表面被引入了一些含氧基團，包括羥基、羰基和羧基。
  7. The remarkable differences of the fatigue crack propagating rates and the fatigue threshold among the above three alurninum alloys were studied and compared, which were caused by the microstructure based on alloys " chemical components

    對比研究了上述三種合金的化學成分對微觀組織結構，及其所引起的材料疲鄭州大學碩士論文電解含欽鋁合金的疲勞性能研究勞裂紋擴展性能和疲勞門檻值的顯著差異。
  8. The network carbide and acicular martensites that existed in the microstructure of the root grooves of the spline due to improper carburating and quenching process of the shafts, led to the initiation and propagation of the intergranular microcracks and were the main reason that caused the early fracture of the shafts

    由於滲碳淬火工藝不當，在二軸花鍵槽根部的組織中產生了網狀破化物和粗大的針狀馬氏體，在外力作用下形成沿晶顯微裂紋並擴展，是導致二軸疲勞斷裂的主要原因。
  9. ( 3 ) there are many flaws in direct laser metal sintering, such as the high remnants stress, micro - hole and micro - crack in sintering parts. in order to solving those problems, the programming of scanning paths is put forward, and several parts are prepared with different scanning paths respectively. the following conclusion is educed : the parts produced with short - side scanning path and same scanning direction have the minimum structure, the rigidity of parts prepared by short - side and same direction scanning path is highest, and the density of parts produced with the vertical scanning path is maximal

    （ 3 ）針對採用大功率激光直接燒結鎳基高溫合金成形金屬零件存在的問題，如較大的殘余應力，製件中存在著微裂紋、微孔洞等缺陷，初步提出掃描路徑的規劃，並採用幾種不同的掃描方式進行燒結試驗，發現採用短邊掃描路徑和同向掃描能夠獲得更加細小和分佈均勻的組織結構，採用短邊同向路徑制備的試樣其顯微硬度最高，而採用變向掃描（垂直）路徑制備的試樣緻密性最好。
  10. Ir - ta - ti metal oxide coated titanium anodes of variable composition were prepared by thermal decomposition. their micro morphorogies and electrochemical properties were characterized by scanning electron microscope, open circuit potential, cyclic voltammetry, consumption rate measurements and accelerated life test. the sem results indicated that all coatings were of a porous and cracked - mud microstructure influenced greatly by the composition of coatings. the electrochemical measurements showed that the ir - ta - ti ternary oxide - coated anodes exhibited excellent electrochemical activity and electrochemical stability in both acidic media and seawater which were affected by the composition and microstructure of the coatings. owing to good corrosion resistance and low consumption rate in seawater, metal oxde coated anodes belong to insoluble material, and can be potentially applid in impressed current cathodic protection systems as an anode

    採用熱分解方法在鈦基體上制備銥鉭鈦金屬氧化物陽極，用掃描電鏡對陽極塗層顯微形貌進行分析，通過強化電解壽命試驗、開路電位測試、消耗率試驗及循環伏安曲線研究了金屬氧化物陽極的電化學性能. sem分析結果表明銥鉭鈦金屬氧化物陽極塗層呈現多孔多裂紋形貌結構.隨陽極塗層組成不同，塗層顯微形貌表現出很大差異，這種差異直接影響陽極電化學性能.電化學性能試驗結果表明銥鉭鈦金屬氧化物陽極在酸性介質和海水中具有良好的電化學穩定性和電化學活性.此外，銥鉭鈦金屬氧化物陽極在海水中的消耗率很低，屬于不溶性的陽極材料，作為外加電流陰極保護用輔助陽極具有廣泛的應用前景
  11. The fatigue crack propagating rates of the above aluminum alloys in paris zone had no remarkable differences. it was showed that fatigue crack propagating rates had little susceptivity to the microstructure of the above alloys in paris zone

    三種試驗合金在paris區的擴展沒有明顯的差別，表現出裂紋擴展速率在paris區時，疲勞裂紋擴展對微觀組織結構的不敏感性。
  12. The proposed model - beam - particle model is validated to simulate some routine tests of concrete which including uniaxial compressive test and uniaxial tensile test to prove that the numerical model can effectively to describe the complete failure process caused by the initiation, propagation and coalescence of cracks. the influence of the meso - mechanical properties to the macroscopic failure behavior is discussed in this paper. the proposed model is employed to simulate the dynamic failure process of concrete under impact loading, and analyse the failure behavior of concrete with different impacting velocity

    本文建立了混凝土的梁-顆粒數值模型，並利用該模型進行了混凝土在單軸壓縮和拉伸載荷作用下，混凝土從微裂紋的萌生、擴展、貫通直到宏觀裂紋產生導致破壞的全過程的數值模擬，探討了混凝土材料細觀結構對其宏觀力學行為的影響；利用該數值模型，模擬了鋼彈以一定的初始速率垂直侵徹混凝土圓板的動態過程，對計算結果進行了動畫顯示，並分析了不同鋼彈初始速率對混凝土圓板破壞形式的影響。
  13. The sem micrographs of xerogel thin films show that the surface of the films is homogeneous, no cracks and holes are observed and it has a fiber - like microstructure

    Sem觀察表明v _ 2o _ 5 - moo _ 3干凝膠薄膜是一種纖維狀顯微結構，且納米復合薄膜表面均勻，無裂紋和孔洞。
  14. Taking in - situ toughened silicon nitride as a design object, principle component analysis ( pca ) is applied to study the microstructure and mechanical properties, to find out the main microstructure controlling factors, and to simplify the characterization variables and criterions ; fuzzy neural networks ( fnns ) is also applied to develop a design expert system for this material, which can realize the forward prediction from processing, microstructure to mechanical properties, and backward design from mechanical properties or microstructure to processing ; monte - carlo method is applied to simulate the grain growth of this material, and then crack propagation is simulated, which is another way based on physics and chemistry to developing prediction models from processing until to mechanical properties

    本文以自增韌氮化硅陶瓷為設計對象，運用主成分分析法（ principlecomponentanalysis ： pca ）對自增韌si _ 3n _ 4陶瓷的顯微結構和力學性能進行數據空間降維，獲得自增韌si _ 3n _ 4陶瓷顯微結構控制的主要因素，進而簡化了表徵參量變量和準則；運用模糊神經網路（ fuzzyneuralnetworks ： fnn ）建立了自增韌si _ 3n _ 4陶瓷設計專家系統，能實現工藝?微結構?性能的正向預測及反向設計；運用monte - carlo方法（ mc ）進行自增韌si _ 3n _ 4陶瓷的晶體生長模擬，然後進行裂紋擴展模擬，探索建立工藝?微結構?力學性能預測模型的思路。
  15. Abstract : a new process of modified treatment of diesel engine link was investigatea in this paper. it made the link get adaptable microstructure and hardness without microcrack

    文摘:提出了一套柴油機連桿調質處理的新工藝，使連桿在沒有顯微裂紋的情況下得到合適的顯微組織和硬度。
  16. The micro cracks of concrete that formed during the injury evolution have obvious self - similarity features, which are known as fractal features

    摘要混凝土在損傷演化期間所形成的微裂紋具有明顯的自相似特徵，即分形特徵。
  17. Based on investigating a large amount of documents, the fatigue crack propagation behavior of mg alloys am50 & az91 is studied in this paper, as well as the tensile mechanical properties at elevated temperature. micro - mechanics of tensile deformation and the fcpr are also investigated by sem & tem

    本文在查閱大量相關文獻基礎上，對az91 、 am50鎂合金的疲勞裂紋擴展特性和高溫拉伸力學性能進行了一定的研究。藉助于掃描電鏡和透射電子顯微鏡，分析了拉伸變形和疲勞斷裂的微觀機制。
  18. At the same time, the fatigue behavior of the liner has also been improved due to the reduction of the stress concentration and micro - break on the inner surface

    內表面採用特殊工藝處理，物理機械性能明顯改善，消除了表面應力集中及微觀裂紋，鋁膽的疲勞性能得到提高。
  19. To solve cylinder liner crack problem of a certain large marine diesel engine, the crack was studied and analysed being aimed at the cylinder liner which created the crack by means of colouring crack detection, electron microscope scanning, energy spectrum analysis, chemical composition analysis and so on. also the temperature distribution and the stress condition of the cylinder liner were researched and analysed utilising measurement on board ship and finite element analysis method. finally the main causes of the cylinder liner crack were synthetically analysed and determined

    為解決某大型船舶柴油機氣缸套裂紋故障問題，利用著色探傷、電子顯微鏡掃描、能譜分析、化學成分分析等方法對其裂紋進行了研究分析；並利用實船測試、有限元分析等方法對該型缸套的溫度分佈狀況、應力狀況，進行了研究分析.確定了缸套開裂的基本原因
  20. The analyses of the microstructures as well as the characterizations of microcracks, deposition defects and residual pores of 3d c / sic composites have been done to determine the main diffusion channels of oxygen into the composites at different temperature domains. 2

    對3dc sic復合材料的顯微結構進行了表徵，對材料中的各種微裂紋、缺陷和孔隙進行了分析，研究了不同溫度區間內氧化性氣體在復合材料中的主要氣相擴散通道。
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