Fractures morphology

Fig. 29 Fractured morphology of spherulitic objects in a thin film of PET crystallized at 220 °C [36]. On the fractured surface many small particles with a diameter of 0.2 0.3 xm are seen while on the spherulite surface there is a fibril structure 0.2 05 xm thick... 

Also, other factors may influence the fracture morphology as is demonstrated by the following examples. Glass fibres having an isotropic structure... 

Fig. 77 The fracture morphology of strong and weak filaments taken from a single PpPTA yarn with a relatively low strength due to polymer degradation...

Figure 5. SEM micrographs showing the ductility observed at low hydrogen fiigacities (region 1 of Figure 4(b)) in the parent metal of the (a) HY-100 and (b) HSLA-100 alloys and the micro-void coalescence (MVC) fracture morphology in (c) HY-100 and (d) HSAL-100.

This analysis of the fracture morphology of MGIM58 is quite important for two reasons ... 

For the PMMA/PS system summarized in Table I, three distinct types of fracture morphologies and phase relationships are observed, these being ... 

Failure Investigation. The clamp was nonmagnetic and the stamped identification on the side of the U-shaped shells indicated that they were fabricated from forged 304 austenitic stainless steel. Visual examination of the fracture surfaces revealed they were entirely brittle and exhibited a very coarse fracture morphology. Liquid penetrant inspection revealed the presence of additional cracks in the fractured half of the clamp. There was no cracking present in the high-strength steel fasteners. 

Age alone does not determine fracture morphology. The 1000 b.c. architectural fiber shown in Figure 14 has a fracture morphology similar to that of the undamaged contemporary fiber. Note that the architectural samples also performed well in other testing areas as shown in Table II. 

The effects of spin friction pressure and time on the friction welding between PMMA-PMMA, PVC-PVC and PMMA-PVC are discussed. Data are presented for the the three heat-affected zones and the three sections of tensile fracture morphology. 19 refs. 

The fractured surfaces of the broken silk fibers were classified according to Hearle s system of fiber fracture morphology (8). Most fractured... 

Effects of Test Frequency on Fatigue Response and Fracture Morphology 188... 

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