所有的飞机都在接受检查，看是否可能有裂纹和腐蚀现象。
All planes are being inspected for possible cracking and corrosion.
它们还必须能够区分是腐蚀、裂纹还是焊缝修复。
They also must distinguish between corrosion pits, cracks and welded machining repairs.
确认这些区域没有腐蚀、裂纹、排放孔堵塞及其它杂物。如有必要进行清洁。
Make sure that this area has no corrosion, cracks, blocked drain holes, unwanted objects. Clean, if necessary.
本文研究了带裂纹混凝土梁的应力腐蚀断裂问题。
Stress corrosion cracking problem of concrete beams with crack is studied in this paper.
腐蚀斑点还会因不同的部件、斑点的位置和循环载荷状况，导致一些不同的疲劳裂纹。
Corrosion pitting also can lead to fatigue crack initiation depending on the component, the location of pitting, and cyclic loading conditions.
随后斑点穿过压缩层继续扩展，剩余应力发生改变，斑点最终导致应力腐蚀裂纹。
The pit then grows through the compressive layer, and the change in residual stress state and the pit geometry initiate stress corrosion cracking.
在出现斑点之前去除可见的表面腐蚀(诸如c -检)有助于预防发生裂纹。
Removing visible surface corrosion before pitting begins (such as during a C-check) helps prevent conditions that can lead to crack initiation.
还会形成穿透型裂纹，造成镀层下本体金属的疲劳或应力腐蚀裂纹。
Through-thickness cracking also can lead to fatigue or stress corrosion cracking of the base metal beneath the plating.
用扫描电子显微镜观察和测量腐蚀后硅样品的亚表面裂纹。
The depth of cracks on the silicon sample subsurface corroded was measured by a scanning electron microscope.
设计制作了腐蚀气体环境下适用于柔度法的中心裂纹M（T）试样及相应的腐蚀环境循环装置。
The Middle-Tension specimen and the corrosive gas cyclic apparatus have been designed and made fitted for automatic measurement using compliance method.
进行了腐蚀环境下航空材料裂纹扩展的自动测量技术研究。
Crack length measurement technique, which used for aeronautical materials under corrosive environment, has been studied in this paper.
结果表明，该进气管断裂系由于应力腐蚀裂纹失稳扩展所造成。
The results show that the failure of the tube is due to stress corrosion crack propagation.
根据扫描断口形貌和裂纹扩展途径的金相观察，还探讨了在混合溶液中的应力腐蚀机制。
The stress corrosion mechanism in mixed solutions was studied based on the metallographic observations of scanning fracture shapes and crack extension direction.
并从C—T曲线的通用性出发，说明加速腐蚀因子与应力水平、载荷谱以及裂纹尺寸无关。
The weal-correlation between acceleration corrosion factor and stress level, load spectrum and crack size is gained base on the generality of C—T curves.
实验结果发现，试样表面出现大量的氧化腐蚀坑，表面主裂纹优先通过这些腐蚀坑扩展。
Plenty of oxidation etching pits are found on the surface of the specimen after the thermal fatigue test, and the surface principal crack is prone to propagate through these etching pits.
依据断口扫描形貌和裂纹扩展途径的金相观察，探讨了在混合溶液中应力腐蚀机制。
The stress corrosion mechanism of in mixed solutions is explored based upon metallographic analysis of crack development.
通常用作额定压力阀门的阀杆材料的硅青铜比普通黄铜具有更好的抗应力腐蚀裂纹的性能。
Commonly used as stem material in pressure-rated valves, silicon bronze has greater resistance to stress corrosion cracking than common brasses.
该方法同时适用于对裂纹和腐蚀缺陷的检测。
This method can apply to the detection of both crack and corrosion.
锅炉及压力容器除了焊接引起的裂纹外，还存在着由腐蚀性环境而引起的腐蚀开裂。
In addition to cracks resulting from welding in boiler and pressure vessels, there are also corrosion cracks due to corrosive environment.
在紫外光的照射下检查是否有细小的裂纹和腐蚀孔。
Under the irradiation of uv light to check whether there is a tiny cracks and corrosion holes.
针对腐蚀和疲劳裂纹对船体强度的影响，提出一种结构可靠性的评估方法。
A method for reliability assessment of the strength of a degraded ship hull in the presence of corrosion and fatigue is developed.
通过裂纹宏微观形貌分析、腐蚀介质分析、对蒸发塔制造过程质量分析等，证实了独山子石化乙二醇蒸发塔的裂纹属晶间型应力腐蚀裂纹。
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.
在此基础上，建立了腐蚀环境下疲劳裂纹扩展速率试验中裂纹长度的自动检测技术。
On the basis of this, an automatic measurement technique of fatigue crack length in fatigue crack growth rate test under corrosive circumstance is established.
结果表明，该近似表达式适用于A型腐蚀疲劳裂纹扩展速率的计算。
The given calculating example shows that the expression has a better applicability for the crack propagation rate of type A.
表面裂纹萌生原因是拉杆在腐蚀性高炉煤气粉尘和轴向拉伸等工作应力的综合作用下，形成的应力腐蚀裂纹。
The initiation of the cracks was caused by stress corrosion resulting from the co-effect of the corrosive gas dust and the axial tensile stress.
分析表明，塑性诱发裂纹闭合在腐蚀条件下的变化是造成超载后裂纹扩展规律变化的主要原因之一。
The theoretical analysis indicated that the crack closure effect was mainly responsible for the change of crack growth retardation in corrosion fatigue.
采用锌阳极和铝阳极的防止腐蚀方法虽能防止铬钼钢腐蚀，但对其裂纹的扩展起明显的加速作用。
The Zinc and Aluminum anode protector can prevent the Cr-Mo steel from corrosion. However, it has the obvious effect of accelerating the crack propagation.
试验结果表明，该钢具有优异的焊接性能、较低的焊接冷裂纹敏感性和良好的耐大气腐蚀性能。
The results show that the steel has superior weldability, low cold-cracking sensitivity and good weather corrosion resistance.
结果发现，把腐蚀坑等效为具有相同寿命的表面裂纹时，等效表面裂纹的尺寸比对应腐蚀的尺寸小19.7% - 22.5%。
The result show that the size of equivalent initial surface crack is less than 19.7to 22.5 percent of surface corrosion pit size which have the same life.
结果发现，把腐蚀坑等效为具有相同寿命的表面裂纹时，等效表面裂纹的尺寸比对应腐蚀的尺寸小19.7% - 22.5%。
The result show that the size of equivalent initial surface crack is less than 19.7to 22.5 percent of surface corrosion pit size which have the same life.
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