... with the applied cyclic stress intensity range (ΔK). The crack and fracture morphology exhibited by tested specimens were investigated with scanning electron microscopy and Auger electron spectroscopy. Metallurgical factors, such as linear grain-boundary precipitation and spherical general precipitation...

... The most common measures of ductility are uniform and total elongation and reduction of area. Pure copper in the unirradiated state exhibits large amounts of both measures of ductility along with a serpentine glide fracture morphology. After irradiation at 411 to 414°C with fast neutrons to 34...

... Spatial fiber distribution and fracture morphology were studied for three injection-molded thermoplastic composites: PPS, PAI, and PEEK reinforced with carbon fibers. Specimens were dog bone-shaped tensile coupons and flex bars. Both optical and scanning electron microscopes were used...

... zone) growth at elevated temperature was shown to be best described by a relaxation controlled growth model. Mode I delamination thermoplastic composite elevated temperature process zone cyclic loading fracture morphology Golam M. Newaz, 1Arnold Lustiger, 2 and Jong- Yeong Yung 3...

... of temperatures encountered in service. Fracture morphology in all cases suggests the action of a ductile mechanism, either ductile rupture for fracture or striation forming for fatigue crack growth. Application of these results in the context of turbine fracture control planning illustrates the utility...