裂紋形貌 的英文怎麼說
中文拼音 [lièwénxíngmào]
裂紋形貌
英文
crack morphology-
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。By the analyses of corrosive medium and manufacturing process quality, the cracks of glycol evaporators in dushanzi petrochemical company have been confirmed to be intergranular corrosion cracks
摘要通過裂紋宏微觀形貌分析、腐蝕介質分析、對蒸發塔製造過程質量分析等，證實了獨山子石化乙二醇蒸發塔的裂紋屬晶間型應力腐蝕裂紋。The formation of 3. 5 % nacl solution is almost similar to that of 3. 5 % nacl thin electrolyte layer, just the mass transfer rate of the oxygen in the layer is more quicker than in the solution ? the test shows that the crack growth rate of wet - corrosion fatigue of lc4cs aluminum alloy in the layer is quicker than in the solution, and also shows that morphology of fatigue fracture in the layer is evidently distinguished from in the solution
3 . 5 nacl溶液和3 . 5 nacl薄液層的化學組成幾乎完全相同，只是薄液層中氧的傳質速率較快。實驗結果顯示了在薄液層中， lc4cs鋁合金的濕腐蝕疲勞裂紋擴展速率，大於在3 . 5 nacl溶液中的速率。實驗還發現其疲勞斷口的形貌，也與3 . 5 nacl溶液中的有明顯區別。There is a slight drop of the fcpr when the specimen s thickness increases. however, the thickness of the specimen exerts a great influence on kth and fatigue life ( n ) : the thicker specimen is, the higher fatigue life ( n ) becomes, and the greater kth shows. under control of the same conditions, the fcpr of am50 is not so high as that of az91. there are some correlations between load ratio ( r ) and the fatigue surface : when load ratio becomes great, small flat surfaces increase while dimples decrease
試樣厚度增大，穩態裂紋擴展速率略有減小。但是，試樣厚度影響試樣的疲勞壽命和門檻值：試樣越厚，疲勞壽命越長，門檻值越大；在試樣尺寸和加載條件相同的情況下， am50的疲勞裂紋擴展速率較az91小，疲勞壽命則比az91長。載荷比r影響試樣的斷口形貌：載荷比r越大，對應相同k值出的斷口小平面越多，韌窩越少。The vickers hardness decreases monotonously from ~ 20gpa ( ai2o3 ) to ~ 14gpa ( 19vol. % ni - fe / al2o3 ) with increasing ni - fe content
並結合表面裂紋擴展和斷口形貌，討論了材料增強增韌的機理。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The surface of the films was observed for the films heated with many times by laser beam, it was found that pzt films " interfacial crack appeared
重復多次激光作用后，觀察其形貌，發現薄膜出現界面裂紋，這與鄭學軍用激光熱疲勞模型預測的結果一致。It is found that the great cracks on the coarse surface are initiated easily than on the smooth surface by the sem observation and the crack size obtained at the dynamic indentation experiment is bigger than at the static indentation experiment under the same load. it is showed the single crystal silicon is easier to initiate the crack and fracture under dynamic load, the single crystal silicon ’ s
然後通過sem觀察單晶硅試件表面壓痕形貌，發現粗糙表面比光滑表面容易生成大裂紋，在相同載荷作用下單晶硅材料在動態壓痕試驗得到的裂紋要大於在靜態壓痕試驗得到的裂紋，表明在動態加載條件下單晶硅材料更容易生成裂紋和破碎。With the experiment of surface crack growth of bhw - 35 weld metal, the law of the surface crack shape variation when it grows was obtained, and the law of surface crack growth rate was also gotten. these direct the evaluation of the surface crack fatigue growth life and the critical value of its length
對bhw - 35鋼焊縫材料進行表面裂紋擴展試驗研究，得到裂紋的擴展形貌變化規律，並對其疲勞擴展壽命進行預測研究，為汽包下降管角焊縫部位的表面裂紋擴展壽命預測提供依據，同時也確定了其表面裂紋擴展的臨界值。分享友人