microcrack

microcrack

1. REPLICA TECHNIQUE FOR MICROCRACK OBSERVATION OF ROCKS

一种用于岩石材料微裂纹观察的复型技术

2. There are microcrack and microhole in them.The radical cause is serious segregation of continuous cast steel billets.

偏析带组织为非索氏体，其强度高，塑性差，在轧制过程中易产生微裂纹和孔洞；

3. Keywords catalyzer;microcrack;high efficiency;

催化剂;高效;微裂纹;

4. microcrack in fibers

光纤的微裂纹

5. Keywords engineering material;microcrack;self-healing technology;self-healing mechanism.;

关键词工程材料;裂纹;自愈合技术;机理;

6. internal fatigue microcrack

内部疲劳微裂纹

7. Keywords internal fatigue microcrack;morphological evolution;spherical void;diffusion mechanism;

内部疲劳微裂纹;形态演变;球洞;扩散机制;

8. Keywords internal fatigue microcrack;spherical void;diffusion;grain boundary;a-iron;

内部疲劳微裂纹;球洞;扩散;晶界;工业纯铁;

9. Keywords erosive wear;particle reinforced silicone matrix composite coating （SMCC）;microcrack;micro ploughing;micro cutting;

冲蚀磨损;颗粒增强有机硅基复合材料涂层（SMCC）;裂纹;微观犁耕;微观切削;

10. Costin L S. A microcrack damage model for brittle rock[R]. Sandis Report SAND83-1590, Albuquerque, NM, 1983

凌建明.节理岩体损伤力学及时效损伤特性的研究[博士学位论文][D].上海:同济大学,1992

11. dynamic interaction sliding microcrack model

动态滑移型裂纹模型

12. Keywords Monocrystalline Silicon Wafer;Grinding;Surface Layer Damage;Microcrack;Residual Stress;

单晶硅片;磨削;表面层损伤;微裂纹;残余应力;

13. Piezoresistivity of ECAC may involve proximity effect, microcrack and the staggered arrangements of conductive pass-ways due to shear strength of aggregates.

压敏产生的原因是导电沥青混凝土试件的压缩邻近效应、微裂纹和石料间的剪切力使部分导电通路错位。

14. Keywords indentation method;residual stress;microcrack;

压痕法;残余应力;微裂纹;

15. Because the microcrack exists in the organization, the plasticity reduces with the crystal grain thinning.

因为组织中微裂纹的存在，随着晶粒的细化塑性反而减小；

16. Therefore, it is important to discover the existence of the microcrack in time before the marine accidents occur.

因此，在发生海损事故前，及时发现各构件存在的微裂纹是十分重要的。

17. The yield strength of the agglomerated material due to extrusion increases in the vicinity of cutting edge.It makes contact stress increase, and eventually results in microcrack on workpiece surface.

堆积在刀尖处的材料屈服强度提高，接触应力增大，使得工件表面产生显微裂纹；

18. Ultrasonic wave attenuation measure is an important method of researching the energy absorptance of rock. It relates with the variation of rock microcrack and is one of subjects to be researched continuously in rock area .

声波衰减是研究岩石能量吸收性质的主要方法，它与岩石内部微裂纹及其变化有着密切联系，是岩石领域需要深入研究的课题之一。

19. Keywords composite propellant;dewetting damage;microcrack;constitutive equation;

复合推进剂;脱湿损伤;微裂纹;本构模型;

20. Keywords composite ceramics;crack deflection;microcrack;multitoughening;

复相陶瓷;裂纹偏转;微裂纹;协同增韧;

21. From experiments, it is demonstrated that the mathematical model has a fairly high accuracy, hence forming a basis for the quantitative analysis of the microcrack signal.

实验证明该数学模型具有较高的精度,为定量分析微裂纹信号打下了基础。

22. Indention microcrack formation and propagation in single crystalline silicon at room temperature

室温下单晶硅压痕微裂纹的形成与扩展

23. The main reason for the effect of the wall thickness on the HGM permeability was microcrack on the HGM surface.

对上述影响因素进行了初步的探讨，气体渗透系数改变的主要原因是玻璃微球表面的结构裂纹、空位和缺陷。

24. The possibility of inner microcrack healing was studied by normalizing the 45 steel samples containing inner crack for one time and two times respectively.

对含有内部裂纹的45钢试样采取了不同温度一次加热正火处理和二次加热正火处理,研究了其内部裂纹愈合的可能性。

25. The mechanism of surface microcrack formation on container plate in cold bending tests was analysed.

对集装箱板冷弯时表面微裂纹的成因进行分析。

26. CHARACTERISTICS OF DAMAGE EVOLUTION OF MICROPORE AND MICROCRACK IN ROCK

岩石微结构与微裂纹的损伤演化特征

27. Computer simulation of planar microcrack growth process

平面微裂纹扩展过程的计算机模拟

28. Improving production technology and method to avoid microcrack formation are suggested.

并提出了改变轧制变形量、加大轧制后冷却速度的改进工艺和方法。

29. failure type controlled by extension microcrack

张性微裂缝控制型破坏

30. The main experimental methods to map the director field around disclinations are 1)lamellar decoration,2)band-texture decora-tion and 3)surface microcrack decoration.

归纳出描绘向错周围指向矢场的主要实验方法：1）片晶装饰； 2）条带织构装饰；

31. Keywords Al 66 Mn 9Ti 25;Microalloying;Microstructure;Compression peoperties;Microcrack;Deformation and fracture;

微合金化;显微组织;压缩性能;微裂纹;形变与断裂;

32. joining of microcrack

微裂相接

33. microcrack shielding

微裂纹增韧

34. microcrack model

微裂纹模型

35. Application of Microcrack Chromeplate Technology in Automobiles

微裂纹镀铬工艺在汽车上的应用

36. High-Efficiency Hard Chromium Plating with Microcrack

微裂纹高效镀硬铬工艺研究

37. microcrack mending material

微裂缝修补材料

38. microcrack detection

微裂缝探测

39. microcrack toughening

微裂韧化

40. Keywords microscopic pore structure;microcrack;Jamin action;pressure-sensitive action;waterflood;Xifeng Oilfield;

微观孔隙结构;微裂缝;贾敏效应;压敏效应;注水开发;西峰油田;

41. 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.

提出了一套柴油机连杆调质处理的新工艺，使连杆在没有显微裂纹的情况下得到合适的显微组织和硬度。

42. In the light of the dynamical analysis of microcrack coalescence, this paperpresents a statistical fractal modeI to describe the damage evolution of spailation.

摘要 通过对微裂纹连接的动力学分析，提出了描述层裂损伤演化的统计分形模型。

43. The residual stress measurement of roller is very difficult because that the roller has gigantic volume, the surface is out of order and especially there are oxide film and microcrack.

摘要轧辊体积大且辊面状态又不好，尤其是热轧辊的表面常有氧化膜和微裂纹，在测量时又不能损伤轧辊表面，因此，轧辊残余应力的测量较困难。

44. Secondary crack, reared ridge, and microcrack in the front of the main crack tip can all hinder crack propagation during low cycle fatigue.

撕裂棱、裂纹前端微裂纹的桥接等因素是阻滞主裂纹扩展的主要机制。

45. Furthermore, the micropore in DP steel would change into microcrack when martensite volume fraction reached 30%.Meanwhile necking appeared early.

断裂时当马氏体体积分数增加到30%，颈缩提前，且微孔有向微裂纹转变的趋势。

46. Keywords crystal structure;evolution equation of microcrack;statistical distribution function;macromechanical quantity;

晶体结构;微裂纹演化方程;统计分布函数;宏观力学量;

47. The corelation of microcrack propagation in the delamination of the composites to cleavage step and river pattern is explored in the final part of this paper.

最后,对复合材料层合板层间微裂纹的扩展与解理台阶和河流状花样所呈方向之间的关系进行了探讨。

48. Finally, we try to find out the connection between recast layer and microcrack.

最后探讨重铸层和微裂缝之关联性。

49. Microcrack interacting with a finite main crack

有限长主裂纹与微裂纹的相互作用

50. The distribution of microcrack lengths in damage evolutional process of materials is a fractaldistribution.

材料损伤演化过程中的微裂纹分布是分形分布。

51. Microcrack and surface hair were observed in each cultivar.

果面普遍观察到微裂口与表皮毛。

52. Griffith microcrack model

格里菲斯微裂纹模型

53. Keywords zirconia;microcrack toughening;transformation toughening;fracture characteristics;

氧化锆;微裂纹韧化;相变增韧;断裂特征;

54. Keywords turbine blade;microcrack source;fatigue cracking;

汽轮机叶片;裂纹源;疲劳断裂;

55. The theoretical research on the microcrack of ceramic material of laser drilling

激光打孔陶瓷微裂纹现象理论研究

56. The microcrack inside the deforming area appears when the energy of laser beam is quite strong.

激光束能量较大时,变形区内部产生了微裂纹。

57. Keywords thermotropic liquid crystalline polymer（TLCP）;glass fiber（GF）;in-situ hybrid composite;microcrack;

热致液晶聚合物;玻璃纤维;原位混杂复合材料;微裂纹;

58. Mechanism of Microcrack Formation of Fine Grain and High Strength Automotive Steel Plate during Cold Bending

热轧细晶高强度汽车板冷弯微裂纹的成因

59. Keywords Coal seam;hydraulic fracturing;microcrack;production increase;

煤层;压裂;微裂缝;增产;

60. It is observed that considerable liquation microcracks and some other microffissures called solid-state microcrack initiate in the regions nearby the fusion line and propagate across the grain boundary.

研究发现，熔合线附近的热影响区产生大量液化裂纹和沿晶扩展的固相裂纹。

61. The study showed that there were several kinds of microstructure and microcrack in micromechanism of the high slope rock, which was related with rock mass damage and fracture of the high slope.

研究表明：大坝高边坡岩石组成及微观结构上存在多种微结构及微裂隙构造，与边坡岩体损伤与断裂存在内在关系；

62. Keywords structure ceramics;grinding;microcrack of surface;

结构陶瓷;磨削;表面微裂纹;

63. The results show that because indentation microcrack of ZrO_2-based ceramic are palmqvist crack, ei-ther of Niihare (P) equation, Shetty equation, Laugier equation or Marshall equation can be selected tocalculate K_(1C) value.

结果表明,由ZrO_2基陶瓷的压痕裂纹具有巴氏裂纹特征,因而只能选择Niihara(P)方程(P表示巴氏裂纹)、Shetty方程、Laugier方程或Marshall方程等来计算K_(1C).

64. The microstructure was observed.The results show that the surface microcrack formation on container plate was mainly related to the gross grain and mixed grain in the surface of plate.

结果表明:轧制表面层的粗晶、混晶和沿轧向的分层是引起表面微裂纹的重要原因,而氧与氮含量较高对冷弯性能有不利影响;

65. The results show that the cylinderization time depends sensitively on the initial morphology of the microcrack tip.

结果表明：裂尖的几何形状对微裂纹圆柱化时间起决定性作用；

66. Performance and Mechanism of Polymer Modified Superfine Cement for Microcrack Mending of Concrete Structure

聚合物改性超细水泥修补混凝土结构物微裂缝的性能及机理

67. expansion and microcrack

膨胀与开裂

68. THREE-STAGE FRACTURING MODEL FOR GRANITIC ROCKS UNDER TRIAXIAL COMPRESSION-ROLE OF MICROCRACK DENSITY AND STRESS RATE ON FAULT FORMATION

花岗岩变形破坏的阶段性模型--应力速度及预存微裂纹密度对断层形成过程的影响

69. microcrack propagation

裂纹扩展

70. microcrack source

裂纹源

71. The method presented is sensitive to the microcrack, demonstrating the potential of nonlinear acoustic waves to provide a quantitative evaluation of the deterioration of cement-based materials.

证明本方法对混凝土材料微裂缝的探测非常敏感，对于水泥基材料而言，是一种极具潜力的材料退化评估方法。

72. Influence of the Specimen Thickness on Fracture Toughness K_Ic of Mortar or Concrete and the Shape and Size of Microcrack Region NearCrack Tip

试件厚度对砂浆、混凝土断裂韧度K_(Ic)的影响和缝端微裂缝区的形状及大小

73. Keywords ultrasonic instruments;root-end preparation;microcrack;

超声器械;牙根尖倒预备;微裂;

74. pavement microcrack

路面微裂缝

75. The abrasive wear of enamel coating is characterized by spalling and microcrack, which are attributed to the formation of ...

这种脆性剥落源于滑动过程中涂层磨损表面的裂纹形成及其扩展.

76. After microcrack treatment, their leaching rate can be notably increased with decrease of the content of freely soluble copper and removal of flotation reagent on mineral surfaces.

这种金精粉经微爆处理后，由于组成矿物的特性发生了一系列的变化，加之脱除了残留在矿粒表面的浮选药剂，金的浸出率可得到大幅度的提高。

77. The sound emission monitor shows that microcrack has a great influence on the heat-shock and the cracks are develeped with the frequency of the sound emission.

采用声发射监测,发现微裂纹对热震性能影响很大,声发射率增大与裂纹扩展速度成正比。

78. Keywords Al alloy;deformation;damage;shear deformation band;microcrack;

铝合金;变形;损伤;剪切变形带;微裂纹;

79. Keywords Hard chromium plating;Additive;High efficiency;Microcrack;

镀硬铬;添加剂;高效;微裂纹;

80. The ripple damage on the K9 glass surface could be obviously observed, and the failure surface can be devided into three parts: ablation zone, microcrack zone and brittle fracture zone.

随着激光脉冲个数的增加，损伤由点状破坏演变为损伤区，微裂纹逐渐增长，损伤面积逐渐增大。