fracture surfacestriationsplane strainplane stressmicrostructureThe macroscopic and microscopic appearance of fatigue fracture surfaces is strongly affected by the prevailing stress intensity conditions at the moving crack tip. The nature of the fatigue striation found during plane strain propagation is ...
A correlation between fatigue crack growth and the fracture surface appearance plus microstructural aspects has been established. It is suggested that fatigue-induced vacancies might play a significant part in cleavage facet growth at lower crack growth rates. 展开 ...
Quantitative Characterization of the Fracture Surface of Si Single Crystals by Confocal Microscopy Experiments are conducted to study the dislocation nucleation conditions at the crack tip in {110}〈110〉 oriented Si single crystals. Specimens with surfa... YB Xin,KJ Hsia,DA Lange - 《Journal of ...
The fatigue failure surface was also examined by using SEM. The main results obtained are as follows; (1) Fatigue cracks initiated at the interface between ferrite and pearlite in case of rail steel with pro-eutectoid ferrite. In rail steel without pro-eutectoid ferrite, fatigue cracks occurred...
O. A geometric model for fatigue crack closure induced by fracture surface roughness. Mater. Sci. Eng. A 150, 209–212 (1982). Google Scholar Suresh, S. & Ritchie, R. O. Near Threshold Fatigue Crack Propagation: A Perspective on the Role of Crack Closure Report No. LBL-16263 (...
8.6(b), while numerous tear edges observed on the fracture surface at ΔK=10.6MPa in Fig. 8.6(c) were presumed to be caused by the activation of slip systems unfavorably oriented relative to the model-I loading [453]. 8.3 Fatigue of metastable high-entropy alloys 8.3.1 Low-cycle fatigue...
Fatigue striations and fibrous stripes, which have been frequently observed in fatigue tests, also occurred on the fracture surface, as seen in Figs. 8 and 9 (a–e). These striations are remnants of plastic deformation under cyclic loading, which indicates the cyclic loading history of fatigue ...
Fracture Surface in Low Cycle Fatigue of HA-188 Cobalt Base Alloy at High Temperature 来自 jstage.jst.go.jp 喜欢 0 阅读量: 18 作者:K Kita,M Kiyoshige,M Tominaga,J Fujioka 摘要: The modes of crack initiation and propagation of low cycle fatigue at high temperature were studied on HA-...
Fatigue test model of fracture surface 翻译结果4复制译文编辑译文朗读译文返回顶部 fatigue testing model is broken 翻译结果5复制译文编辑译文朗读译文返回顶部 Endurance test model fracture 相关内容 a产生重大影响 Has the significant influence[translate] ...
The fracture appearance of fretting cracks can be described as somewhat smooth and featureless, and in the presence of a contrasting fracture surface like fatigue fracture becomes easily identifiable. The analysis and descriptions discussed are intended to provide physical characteristics of fretting cracks...