微裂纹

微裂纹常在基体晶界和SiC颗粒界面处形成。

Microcracks often initiate on the grain boundaries and the interfaces .

由于HA与C/C热膨胀系数差异较大，HA涂层中有大量微裂纹交错分布在HA颗粒间。

Due to the high difference of thermal expansion coefficient between the HA and the C / C composites , there are a lot of microcracks appeared in the HA coatings .

850～1000°C变形孪晶与晶界交互作用及孪晶间的交互作用产生了微裂纹；

The interactions among deformation twins and grain boundary induce micro cracks .

对复合材料的磨面进行SEM观察，发现了微裂纹。

Microcrack was observed in grinding surface by means of SEM .

类V型微裂纹漏磁场数学模型

A mathematical model of the magnetic leakage field for type V microcrack

ZnO非线性电阻内部的微裂纹在老化中的作用

Effects of Interior Micro-cracks on the Aging of ZnO Nonlinear Varistors

类V型微裂纹检测系统原理

A principle of type V microcrack test system

非晶态Se薄膜晶化过程中微裂纹产生的研究

Study on Generation of Micro-Cracking During Crystallization of Se Thin Film

界面微裂纹屏蔽Jk矢量投影守恒

The projected conservation theory of the J K vector for microcrack interface crack shielding

Al／SiCp复合材料微裂纹产生的原位研究

In situ study of microcrack in al / sicp Composites

Ti吸附Hg后位错发射及微裂纹形核的TEM原位研究

In situ TEM study of dislocation emission and microcrack nucleation for α - ti after adsorbing Hg

通过利用大型有限元程序ANSYS建立了考虑钢轨表面微观粗糙度情况下，具有表面微裂纹的轮轨接触二维有限元模型。

Two dimensional finite element model of wheel-rail contact surface micro-crack under micro-roughness was established by using finite element program ANSYS .

阳极溶解促进α-Ti位错发射、运动导致SCC微裂纹形核

Anodic dissolution-induced dislocation emission and motion for α - ti resulting in SCC microcrack nucleation

通过CT图像对分层击实重塑土压缩过程中微裂纹产生的过程及力学机制进行了探讨，得到了一些有益的结论。

The production mechanisms of micro crack in the soil samples during the damage process are analyzed and the failure modes are concluded from the point of view of fractural mechanics .

实验使用声发射技术（AcousticEmission），对三轴应力条件下岩石试件内部微裂纹的产生和扩展进行了记录。

By using acoustic emission technique the creation and growth of microcracks in rock specimens that stressed by triaxial stresses have been registered during the course of the experiment .

与其它因素相比，微裂纹前缘的K可能是在我们认识细观领域内材料破坏行为以及工程应用过程中，最具物理意义的一个代表性因素。

Compared with other elements , K along microcrack front should be the most representative one in physical significance during we recognize the material damage behavior and the engineering applying process .

HP-Si3N4陶瓷表面微裂纹的扩展

Surface Microcrack Propagation in Hot-pressed Si_3N_4

WC-Co合金微裂纹形核过程的探讨

Initiation of microcracks in WC-Co alloys

SEM观察表明：晶内疲劳微裂纹纵剖面二维形态发生了主要由表面扩散控制的形态变化，由初始的扁椭圆形演化成多个球洞定向排列的形态；

SEM observations show that the two-dimensional longitudinal section of the intragranular microcracks evolves from the original thin-ellipse shape into the several aligned spherical voids dominated by surface diffusion .

TC4钛合金沿孪晶界发生“挤出”，微裂纹沿挤出脊形成，并沿孪晶界按Z字形扩展。

Micro crack was initiated at extrusion ridge and grew along it in Zigzag . The crack was transgranular .

同时对TZP增韧HA材料的增韧机制进行了探讨，并认为ZrO2对HA材料的增韧机制主要是应力诱导相变增韧和相变诱发微裂纹增韧。

The toughening mechanism of ZrO 2_reinforced HA composite were stress_ induced phase transformation toughening and phase transformation_induced micro_crack toughening .

根据σf与开裂单元的测定结果，并考虑到微裂纹的形状对解理断裂应力的影响，计算了双相钢的有效表面能。

According to the measurements of the cleavage fracture stress and the crack unit , the effective surface energy of the dual phase steels was also calculated by Griffith 's equation .

按照Griffith微裂纹理论，讨论了影响CVD金刚石断裂强度的因素。

By the theory of Griffith ` s microfissure , the factors which affect CVD diamond fracture strength is presented .

TP树脂是以球形颗粒分散于BMI基体中，这些颗粒起到了抑止微裂纹扩展的作用。

The TP resins that take the shape of spherical particles disperse in BMI matrix , these particles play a role in restraining microcrack growth .

通过对材料磨损表面的形貌分析可知，Si3N4陶瓷的磨损机制主要为粘着磨损、磨粒磨损和微裂纹疲劳。

It is known from the observation of wear surface the wear mechanism of Si_3N_4 ceramics were adhesive wear , abrasive wear and micro-crack fatigue rupture .

应用MATLAB对微裂纹特征进行统计分析，得出微裂纹密度、长度等特征参数与涂层失效模式间的对应关系，同时证实基体激光离散预处理对微裂纹组态有控制作用。

We also got the density and length of the microcracks with MATLAB . At the same time , we substantiated that the configuration of the microcracks could be controlled by pretreating the substrate with laser .

研究各向异性弹性体中半无限长主裂纹端存在多微裂纹时的平面问题，对其进行J积分分析。

In this paper , the J integral analysis is performed for the plane problems of multiple microcracks near the tip of a semi infinite macrocrack in an anisotropic elastic solid .

C/SiC复合材料在燃气火焰不同区域中的不同力学性能是同氧化温度对SiC基体微裂纹的影响导致的。

The difference between the mechanical properties of C / SiC in the different areas of the flame resulted from the influence of oxidation temperture on the width of the microcrack in SiC matrix .

C/C复合材料基体对包埋法制备SiC涂层的影响较为显著，SiC涂层由于与炭素基体热膨胀系数差异，引起涂层表面微裂纹的产生。

C / C composites matrix for embedding method for SiC coating effect is significant , SiC coating with carbon matrix coefficient of thermal expansion difference , causes micro crack generation in coating surface .

提出了一种修正J积分的方法，用以计算微裂纹损伤的屏蔽比，并将计算结果与以往的J积分守恒方法进行了比较。

A new method of modified J-integral is presented to calculate the shielding ratio by microcracking and its numerical result is compared with that obtained by the previous method of J-integral conservation .