1) Initiation and propagation
萌生与扩展
1.
The mechanism of the fatigue crack initiation and propagation under cyclic compressive loading has been anal ysed,using the theory of fracture mechanics;meanwhile,the importance of the phenomcnon in engineering practice has been emphasized.
运用断裂力学原理，对在压缩循环载荷作用下塑性材料应力集中部位疲劳裂纹的萌生与扩展机理进行了分析；同时，指出了这一现象在工程实际中的重要性。
2.
Effects of grain misorientation angles on the short crack initiation and propagation in Ti-15-3 alloy were studied by means of electron back scattered diffraction(EBSD) and scanning electronic microscope(SEM).
利用扫描电镜(SEM)和背散射电子衍射(EBSD)技术研究了Ti-15-3合金中晶粒取向差对短裂纹萌生与扩展的影响。
2) crack initiation and propagation
裂纹萌生与扩展
1.
Dynamic observation of cold crack initiation and propagation in SG cast iron weld;
球状石墨铸铁焊缝冷裂纹萌生与扩展动态观察
2.
In-situ tensile tests with special designed SEM were conducted to trace the whole process of crack initiation and propagation induced by TiN inclusion in ultra-high strength steel MA250 which is widely used for aircraft engine shafts.
采用扫描电镜原位观测的方法,动态跟踪观察拉伸载荷作用下航空发动机轴类超高强度钢MA250中不同形状和尺寸的TiN夹杂导致裂纹萌生与扩展的微观行为,从微观角度分析拉伸载荷作用下夹杂物的几何长轴与外加载荷方向成不同角度时裂纹的萌生方式。
3.
In-situ fatigue tests with special designed SEM have been conducted to trace the whole process of crack initiation and propagation induced by AlN inclusion in ultra-high strength steel under low-cycle fatigue load.
采用扫描电镜原位观测的方法,跟踪观察了低周疲劳载荷作用下超高强度钢中AlN夹杂导致裂纹萌生与扩展的微观行为,得到了材料疲劳裂纹表面长度与内部长度之间的关系,可以根据实际检测到的材料或者结构疲劳裂纹表面长度计算其内部长度,并估算其剩余寿命。
3) initiating and propagating
萌生扩展
4) crack initiation and propagation
裂纹的萌生与扩展
5) microcrack initiation and propagation
微裂纹萌生与扩展
补充资料：萌生
植物发芽生长；事物发生、发展：草木萌生｜万物萌生｜萌生念头。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条